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WindowsXP-SP1/com/ole2ui32/insobj.cpp

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/*
* INSOBJ.CPP
*
* Implements the OleUIInsertObject function which invokes the complete
* Insert Object dialog. Makes use of the OleChangeIcon function in
* ICON.CPP.
*
* Copyright (c)1993 Microsoft Corporation, All Rights Reserved
*/
#include "precomp.h"
#include "common.h"
#include <commdlg.h>
#include <memory.h>
#include <dos.h>
#include <stdlib.h>
#include "utility.h"
#include "resimage.h"
#include "iconbox.h"
#include "strcache.h"
OLEDBGDATA
#if USE_STRING_CACHE==1
extern CStringCache gInsObjStringCache; //defined in strcache.cpp
DWORD g_dwOldListType = 0;
#endif
// Internally used structure
typedef struct tagINSERTOBJECT
{
LPOLEUIINSERTOBJECT lpOIO; // Original structure passed.
UINT nIDD; // IDD of dialog (used for help info)
/*
* What we store extra in this structure besides the original caller's
* pointer are those fields that we need to modify during the life of
* the dialog but that we don't want to change in the original structure
* until the user presses OK.
*/
DWORD dwFlags;
CLSID clsid;
TCHAR szFile[MAX_PATH];
BOOL fFileSelected; // Enables Display As Icon for links
BOOL fAsIconNew;
BOOL fAsIconFile;
BOOL fFileDirty;
BOOL fFileValid;
UINT nErrCode;
HGLOBAL hMetaPictFile;
UINT nBrowseHelpID; // Help ID callback for Browse dlg
BOOL bObjectListFilled;
BOOL bControlListFilled;
BOOL bControlListActive;
} INSERTOBJECT, *PINSERTOBJECT, FAR *LPINSERTOBJECT;
// Internal function prototypes
// INSOBJ.CPP
void EnableChangeIconButton(HWND hDlg, BOOL fEnable);
INT_PTR CALLBACK InsertObjectDialogProc(HWND, UINT, WPARAM, LPARAM);
BOOL FInsertObjectInit(HWND, WPARAM, LPARAM);
UINT UFillClassList(HWND, UINT, LPCLSID, BOOL, BOOL);
LRESULT URefillClassList(HWND, LPINSERTOBJECT);
BOOL FToggleObjectSource(HWND, LPINSERTOBJECT, DWORD);
void UpdateClassType(HWND, LPINSERTOBJECT, BOOL);
void SetInsertObjectResults(HWND, LPINSERTOBJECT);
BOOL FValidateInsertFile(HWND, BOOL, UINT FAR*);
void InsertObjectCleanup(HWND);
static void UpdateClassIcon(HWND hDlg, LPINSERTOBJECT lpIO, HWND hList);
BOOL CALLBACK HookDlgProc(HWND, UINT, WPARAM, LPARAM);
#define IS_FILENAME_DELIM(c) ( (c) == '\\' || (c) == '/' || (c) == ':')
BOOL CALLBACK HookDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
#ifdef CHICO
switch (uMsg)
{
case WM_INITDIALOG:
TCHAR szTemp[MAX_PATH];
LoadString(_g_hOleStdResInst, IDS_INSERT , szTemp, MAX_PATH);
CommDlg_OpenSave_SetControlText(GetParent(hDlg), IDOK, szTemp);
return(TRUE);
default:
break;
}
#endif
return(FALSE);
}
/*
* OleUIInsertObject
*
* Purpose:
* Invokes the standard OLE Insert Object dialog box allowing the
* user to select an object source and classname as well as the option
* to display the object as itself or as an icon.
*
* Parameters:
* lpIO LPOLEUIINSERTOBJECT pointing to the in-out structure
* for this dialog.
*
* Return Value:
* UINT OLEUI_SUCCESS or OLEUI_OK if all is well, otherwise
* an error value.
*/
STDAPI_(UINT) OleUIInsertObject(LPOLEUIINSERTOBJECT lpIO)
{
HGLOBAL hMemDlg = NULL;
UINT uRet = UStandardValidation((LPOLEUISTANDARD)lpIO, sizeof(OLEUIINSERTOBJECT),
&hMemDlg);
if (OLEUI_SUCCESS != uRet)
return uRet;
//Now we can do Insert Object specific validation.
if (NULL != lpIO->lpszFile &&
(lpIO->cchFile <= 0 || lpIO->cchFile > MAX_PATH))
{
uRet = OLEUI_IOERR_CCHFILEINVALID;
}
// NULL is NOT valid for lpszFile
if (lpIO->lpszFile == NULL)
{
uRet = OLEUI_IOERR_LPSZFILEINVALID;
}
else
{
if (IsBadWritePtr(lpIO->lpszFile, lpIO->cchFile*sizeof(TCHAR)))
uRet = OLEUI_IOERR_LPSZFILEINVALID;
}
if (0 != lpIO->cClsidExclude &&
IsBadReadPtr(lpIO->lpClsidExclude, lpIO->cClsidExclude * sizeof(CLSID)))
{
uRet = OLEUI_IOERR_LPCLSIDEXCLUDEINVALID;
}
//If we have flags to create any object, validate necessary data.
if (lpIO->dwFlags & (IOF_CREATENEWOBJECT | IOF_CREATEFILEOBJECT | IOF_CREATELINKOBJECT))
{
if (NULL != lpIO->lpFormatEtc
&& IsBadReadPtr(lpIO->lpFormatEtc, sizeof(FORMATETC)))
uRet = OLEUI_IOERR_LPFORMATETCINVALID;
if (NULL != lpIO->ppvObj && IsBadWritePtr(lpIO->ppvObj, sizeof(LPVOID)))
uRet = OLEUI_IOERR_PPVOBJINVALID;
if (NULL != lpIO->lpIOleClientSite
&& IsBadReadPtr(*(VOID**)&lpIO->lpIOleClientSite, sizeof(DWORD)))
uRet = OLEUI_IOERR_LPIOLECLIENTSITEINVALID;
if (NULL != lpIO->lpIStorage
&& IsBadReadPtr(*(VOID**)&lpIO->lpIStorage, sizeof(DWORD)))
uRet = OLEUI_IOERR_LPISTORAGEINVALID;
}
if (OLEUI_ERR_STANDARDMIN <= uRet)
{
return uRet;
}
#if USE_STRING_CACHE==1
// Inform the string cache about a fresh InsertObject invocation.
gInsObjStringCache.NewCall(lpIO->dwFlags, lpIO->cClsidExclude);
#endif
//Now that we've validated everything, we can invoke the dialog.
uRet = UStandardInvocation(InsertObjectDialogProc, (LPOLEUISTANDARD)lpIO,
hMemDlg, MAKEINTRESOURCE(IDD_INSERTOBJECT));
//Stop here if we cancelled or had an error.
if (OLEUI_SUCCESS !=uRet && OLEUI_OK!=uRet)
return uRet;
/*
* If any of the flags specify that we're to create objects on return
* from this dialog, then do so. If we encounter an error in this
* processing, we return OLEUI_IOERR_SCODEHASERROR. Since the
* three select flags are mutually exclusive, we don't have to
* if...else here, just if each case (keeps things cleaner that way).
*/
lpIO->sc = S_OK;
// Check if Create New was selected and we have IOF_CREATENEWOBJECT
if ((lpIO->dwFlags & (IOF_SELECTCREATENEW|IOF_SELECTCREATECONTROL)) &&
(lpIO->dwFlags & IOF_CREATENEWOBJECT))
{
HRESULT hrErr = OleCreate(lpIO->clsid, lpIO->iid, lpIO->oleRender,
lpIO->lpFormatEtc, lpIO->lpIOleClientSite, lpIO->lpIStorage,
lpIO->ppvObj);
lpIO->sc = GetScode(hrErr);
}
// Try Create From File
if ((lpIO->dwFlags & IOF_SELECTCREATEFROMFILE))
{
if (!(lpIO->dwFlags & IOF_CHECKLINK) && (lpIO->dwFlags & IOF_CREATEFILEOBJECT))
{
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszFile[MAX_PATH];
ATOW(wszFile, lpIO->lpszFile, MAX_PATH);
HRESULT hrErr=OleCreateFromFile(CLSID_NULL, wszFile, lpIO->iid,
lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite,
lpIO->lpIStorage, lpIO->ppvObj);
#else
HRESULT hrErr=OleCreateFromFile(CLSID_NULL, lpIO->lpszFile, lpIO->iid,
lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite,
lpIO->lpIStorage, lpIO->ppvObj);
#endif
lpIO->sc = GetScode(hrErr);
}
if ((lpIO->dwFlags & IOF_CHECKLINK) && (lpIO->dwFlags & IOF_CREATELINKOBJECT))
{
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszFile[MAX_PATH];
ATOW(wszFile, lpIO->lpszFile, MAX_PATH);
HRESULT hrErr=OleCreateLinkToFile(wszFile, lpIO->iid,
lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite,
lpIO->lpIStorage, lpIO->ppvObj);
#else
HRESULT hrErr=OleCreateLinkToFile(lpIO->lpszFile, lpIO->iid,
lpIO->oleRender, lpIO->lpFormatEtc, lpIO->lpIOleClientSite,
lpIO->lpIStorage, lpIO->ppvObj);
#endif
lpIO->sc = GetScode(hrErr);
}
}
//If we tried but failed a create option, then return the appropriate error
if (S_OK != lpIO->sc)
uRet = OLEUI_IOERR_SCODEHASERROR;
return uRet;
}
/*
* InsertObjectDialogProc
*
* Purpose:
* Implements the OLE Insert Object dialog as invoked through the
* OleUIInsertObject function.
*/
INT_PTR CALLBACK InsertObjectDialogProc(HWND hDlg, UINT iMsg,
WPARAM wParam, LPARAM lParam)
{
// Declare Win16/Win32 compatible WM_COMMAND parameters.
COMMANDPARAMS(wID, wCode, hWndMsg);
// This will fail under WM_INITDIALOG, where we allocate it.
UINT uRet = 0;
LPINSERTOBJECT lpIO = (LPINSERTOBJECT)LpvStandardEntry(hDlg, iMsg, wParam, lParam, &uRet);
// If the hook processed the message, we're done.
if (0 != uRet)
return (BOOL)uRet;
// Process help message from Change Icon
if (iMsg == uMsgHelp)
{
if (lpIO != NULL)
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp, wParam, lParam);
return FALSE;
}
// Process the temination message
if (iMsg == uMsgEndDialog)
{
EndDialog(hDlg, wParam);
return TRUE;
}
// The following messages do not require lpio to be non-null.
switch (iMsg)
{
case WM_INITDIALOG:
return FInsertObjectInit(hDlg, wParam, lParam);
}
// The following messages DO require lpIO to be non-null, so don't
// continue processing if lpIO is NULL.
if (NULL == lpIO)
return FALSE;
switch (iMsg)
{
case WM_DESTROY:
InsertObjectCleanup(hDlg);
StandardCleanup(lpIO, hDlg);
break;
case WM_COMMAND:
switch (wID)
{
case IDC_IO_CREATENEW:
if (1 == IsDlgButtonChecked(hDlg, IDC_IO_CREATENEW))
{
FToggleObjectSource(hDlg, lpIO, IOF_SELECTCREATENEW);
SetFocus(GetDlgItem(hDlg, IDC_IO_CREATENEW));
}
break;
case IDC_IO_CREATEFROMFILE:
if (1 == IsDlgButtonChecked(hDlg, IDC_IO_CREATEFROMFILE))
{
FToggleObjectSource(hDlg, lpIO, IOF_SELECTCREATEFROMFILE);
SetFocus(GetDlgItem(hDlg, IDC_IO_CREATEFROMFILE));
}
break;
case IDC_IO_INSERTCONTROL:
if (1 == IsDlgButtonChecked(hDlg, IDC_IO_INSERTCONTROL))
{
FToggleObjectSource(hDlg, lpIO, IOF_SELECTCREATECONTROL);
SetFocus(GetDlgItem(hDlg, IDC_IO_INSERTCONTROL));
}
break;
case IDC_IO_LINKFILE:
{
BOOL fCheck=IsDlgButtonChecked(hDlg, wID);
if (fCheck)
lpIO->dwFlags |=IOF_CHECKLINK;
else
lpIO->dwFlags &=~IOF_CHECKLINK;
// Results change here, so be sure to update it.
SetInsertObjectResults(hDlg, lpIO);
UpdateClassIcon(hDlg, lpIO, NULL);
}
break;
case IDC_IO_OBJECTTYPELIST:
switch (wCode)
{
case LBN_SELCHANGE:
UpdateClassIcon(hDlg, lpIO, hWndMsg);
SetInsertObjectResults(hDlg, lpIO);
break;
case LBN_DBLCLK:
SendCommand(hDlg, IDOK, BN_CLICKED, hWndMsg);
break;
}
break;
case IDC_IO_FILEDISPLAY:
// If there are characters, enable OK and Display As Icon
if (EN_CHANGE == wCode)
{
lpIO->fFileDirty = TRUE;
lpIO->fFileValid = FALSE;
lpIO->fFileSelected = (0L != SendMessage(hWndMsg, EM_LINELENGTH, 0, 0L));
StandardEnableDlgItem(hDlg, IDC_IO_LINKFILE, lpIO->fFileSelected);
StandardEnableDlgItem(hDlg, IDC_IO_DISPLAYASICON, lpIO->fFileSelected);
EnableChangeIconButton(hDlg, lpIO->fFileSelected);
StandardEnableDlgItem(hDlg, IDOK, lpIO->fFileSelected);
}
if (EN_KILLFOCUS == wCode && NULL != lpIO)
{
if (FValidateInsertFile(hDlg, FALSE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
}
else
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
UpdateClassType(hDlg, lpIO, FALSE);
}
}
break;
case IDC_IO_DISPLAYASICON:
{
BOOL fCheck = IsDlgButtonChecked(hDlg, wID);
if (fCheck)
lpIO->dwFlags |=IOF_CHECKDISPLAYASICON;
else
lpIO->dwFlags &=~IOF_CHECKDISPLAYASICON;
// Update the internal flag based on this checking
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
lpIO->fAsIconNew = fCheck;
else
lpIO->fAsIconFile = fCheck;
// Re-read the class icon on Display checked
if (fCheck)
{
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
if (FValidateInsertFile(hDlg, TRUE,&lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO,
GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST));
UpdateClassType(hDlg, lpIO, TRUE);
}
else
{
lpIO->fAsIconFile= FALSE;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
SendDlgItemMessage(hDlg, IDC_IO_ICONDISPLAY,
IBXM_IMAGESET, 0, 0L);
UpdateClassType(hDlg, lpIO, FALSE);
lpIO->dwFlags &=~IOF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_IO_DISPLAYASICON, 0);
HWND hWndEC = GetDlgItem(hDlg, IDC_IO_FILEDISPLAY);
SetFocus(hWndEC);
SendMessage(hWndEC, EM_SETSEL, 0, -1);
return TRUE;
}
}
else
UpdateClassIcon(hDlg, lpIO,
GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST));
}
// Results change here, so be sure to update it.
SetInsertObjectResults(hDlg, lpIO);
/*
* Show or hide controls as appropriate. Do the icon
* display last because it will take some time to repaint.
* If we do it first then the dialog looks too sluggish.
*/
UINT i = (fCheck) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_IO_ICONDISPLAY, i);
StandardShowDlgItem(hDlg, IDC_IO_CHANGEICON, i);
EnableChangeIconButton(hDlg, fCheck);
}
break;
case IDC_IO_CHANGEICON:
{
// if we're in SELECTCREATEFROMFILE mode, then we need to Validate
// the contents of the edit control first.
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
if (lpIO->fFileDirty &&
!FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode))
{
HWND hWndEC;
lpIO->fFileValid = FALSE;
hWndEC = GetDlgItem(hDlg, IDC_IO_FILEDISPLAY);
SetFocus(hWndEC);
SendMessage(hWndEC, EM_SETSEL, 0, -1);
return TRUE;
}
else
{
lpIO->fFileDirty = FALSE;
}
}
// Initialize the structure for the hook.
OLEUICHANGEICON ci; memset(&ci, 0, sizeof(ci));
ci.cbStruct = sizeof(ci);
ci.hMetaPict = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_IO_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
ci.hWndOwner= hDlg;
ci.dwFlags = CIF_SELECTCURRENT;
if (lpIO->dwFlags & IOF_SHOWHELP)
ci.dwFlags |= CIF_SHOWHELP;
HWND hList = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
int iCurSel = (int)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
LPTSTR pszString = (LPTSTR)OleStdMalloc(
OLEUI_CCHKEYMAX_SIZE + OLEUI_CCHCLSIDSTRING_SIZE);
SendMessage(hList, LB_GETTEXT, iCurSel, (LPARAM)pszString);
LPTSTR pszCLSID = PointerToNthField(pszString, 2, '\t');
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, pszCLSID, OLEUI_CCHKEYMAX);
CLSIDFromString(wszCLSID, &ci.clsid);
#else
CLSIDFromString(pszCLSID, &ci.clsid);
#endif
OleStdFree((LPVOID)pszString);
}
else // IOF_SELECTCREATEFROMFILE
{
TCHAR szFileName[MAX_PATH];
GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szFileName, MAX_PATH);
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszFileName[MAX_PATH];
ATOW(wszFileName, szFileName, MAX_PATH);
if (S_OK != GetClassFile(wszFileName, &ci.clsid))
#else
if (S_OK != GetClassFile(szFileName, &ci.clsid))
#endif
{
int istrlen = lstrlen(szFileName);
LPTSTR lpszExtension = szFileName + istrlen -1;
while (lpszExtension > szFileName &&
*lpszExtension != '.')
{
lpszExtension = CharPrev(szFileName, lpszExtension);
}
GetAssociatedExecutable(lpszExtension, ci.szIconExe);
ci.cchIconExe = lstrlen(ci.szIconExe);
ci.dwFlags |= CIF_USEICONEXE;
}
}
// Let the hook in to customize Change Icon if desired.
uRet = UStandardHook(lpIO, hDlg, uMsgChangeIcon, 0, (LPARAM)&ci);
if (0 == uRet)
uRet = (UINT)(OLEUI_OK == OleUIChangeIcon(&ci));
// Update the display and itemdata if necessary.
if (0 != uRet)
{
/*
* OleUIChangeIcon will have already freed our
* current hMetaPict that we passed in when OK is
* pressed in that dialog. So we use 0L as lParam
* here so the IconBox doesn't try to free the
* metafilepict again.
*/
SendDlgItemMessage(hDlg, IDC_IO_ICONDISPLAY,
IBXM_IMAGESET, 0, (LPARAM)ci.hMetaPict);
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
SendMessage(hList, LB_SETITEMDATA, iCurSel, (LPARAM)ci.hMetaPict);
}
}
break;
case IDC_IO_FILE:
{
/*
* To allow the hook to customize the browse dialog, we
* send OLEUI_MSG_BROWSE. If the hook returns FALSE
* we use the default, otherwise we trust that it retrieved
* a filename for us. This mechanism prevents hooks from
* trapping IDC_IO_BROWSE to customize the dialog and from
* trying to figure out what we do after we have the name.
*/
TCHAR szTemp[MAX_PATH];
int nChars = GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szTemp, MAX_PATH);
TCHAR szInitialDir[MAX_PATH];
BOOL fUseInitialDir = FALSE;
if (FValidateInsertFile(hDlg, FALSE, &lpIO->nErrCode))
{
StandardGetFileTitle(szTemp, lpIO->szFile, MAX_PATH);
int istrlen = lstrlen(lpIO->szFile);
lstrcpyn(szInitialDir, szTemp, nChars - istrlen);
fUseInitialDir = TRUE;
}
else // file name isn't valid...lop off end of szTemp to get a
// valid directory
{
TCHAR szBuffer[MAX_PATH];
lstrcpyn(szBuffer, szTemp, sizeof(szBuffer)/sizeof(TCHAR));
if ('\\' == szBuffer[nChars-1])
szBuffer[nChars-1] = '\0';
DWORD Attribs = GetFileAttributes(szBuffer);
if (Attribs != 0xffffffff &&
(Attribs & FILE_ATTRIBUTE_DIRECTORY) )
{
lstrcpy(szInitialDir, szBuffer);
fUseInitialDir = TRUE;
}
*lpIO->szFile = '\0';
}
uRet = UStandardHook(lpIO, hDlg, uMsgBrowse,
MAX_PATH, (LPARAM)(LPSTR)lpIO->szFile);
if (0 == uRet)
{
DWORD dwOfnFlags = OFN_FILEMUSTEXIST | OFN_ENABLEHOOK;
if (lpIO->lpOIO->dwFlags & IOF_SHOWHELP)
dwOfnFlags |= OFN_SHOWHELP;
uRet = (UINT)Browse(hDlg, lpIO->szFile,
fUseInitialDir ? szInitialDir : NULL, MAX_PATH,
IDS_FILTERS, dwOfnFlags, ID_BROWSE_INSERTFILE, (LPOFNHOOKPROC)HookDlgProc);
}
// Only update if the file changed.
if (0 != uRet && 0 != lstrcmpi(szTemp, lpIO->szFile))
{
SetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, lpIO->szFile);
lpIO->fFileSelected=TRUE;
if (FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
// auto set OK to be default button if valid file
SendMessage(hDlg, DM_SETDEFID,
(WPARAM)GetDlgItem(hDlg, IDOK), 0L);
SetFocus(GetDlgItem(hDlg, IDOK));
}
else // filename is invalid - set focus back to ec
{
HWND hWnd;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, IDC_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, -1);
}
// Once we have a file, Display As Icon is always enabled
StandardEnableDlgItem(hDlg, IDC_IO_DISPLAYASICON, TRUE);
// As well as OK
StandardEnableDlgItem(hDlg, IDOK, TRUE);
}
}
break;
case IDC_IO_ADDCONTROL:
{
TCHAR szFileName[MAX_PATH];
szFileName[0] = 0;
// allow hook to customize
uRet = UStandardHook(lpIO, hDlg, uMsgAddControl,
MAX_PATH, (LPARAM)szFileName);
if (0 == uRet)
{
DWORD dwOfnFlags = OFN_FILEMUSTEXIST | OFN_ENABLEHOOK;
if (lpIO->lpOIO->dwFlags & IOF_SHOWHELP)
dwOfnFlags |= OFN_SHOWHELP;
uRet = (UINT)Browse(hDlg, szFileName, NULL, MAX_PATH,
IDS_OCX_FILTERS, dwOfnFlags, ID_BROWSE_ADDCONTROL , (LPOFNHOOKPROC)HookDlgProc);
}
if (0 != uRet)
{
// try to register the control DLL
HINSTANCE hInst = LoadLibrary(szFileName);
if (hInst == NULL)
{
PopupMessage(hDlg, IDS_ADDCONTROL, IDS_CANNOTLOADOCX,
MB_OK | MB_ICONEXCLAMATION);
break;
}
HRESULT (FAR STDAPICALLTYPE* lpfn)(void);
(FARPROC&)lpfn = GetProcAddress(hInst, "DllRegisterServer");
if (lpfn == NULL)
{
PopupMessage(hDlg, IDS_ADDCONTROL, IDS_NODLLREGISTERSERVER,
MB_OK | MB_ICONEXCLAMATION);
FreeLibrary(hInst);
break;
}
if (FAILED((*lpfn)()))
{
PopupMessage(hDlg, IDS_ADDCONTROL, IDS_DLLREGISTERFAILED,
MB_OK | MB_ICONEXCLAMATION);
FreeLibrary(hInst);
break;
}
// cleanup the DLL from memory
FreeLibrary(hInst);
// registered successfully -- refill the list box
lpIO->bControlListFilled = FALSE;
lpIO->bObjectListFilled = FALSE;
URefillClassList(hDlg, lpIO);
}
}
break;
case IDOK:
{
if ((HWND)lParam != GetFocus())
SetFocus((HWND)lParam);
// If the file name is clean (already validated), or
// if Create New is selected, then we can skip this part.
if ((lpIO->dwFlags & IOF_SELECTCREATEFROMFILE) &&
lpIO->fFileDirty)
{
if (FValidateInsertFile(hDlg, TRUE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
UpdateClassIcon(hDlg, lpIO, NULL);
UpdateClassType(hDlg, lpIO, TRUE);
}
else // filename is invalid - set focus back to ec
{
HWND hWnd;
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, IDC_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, -1);
UpdateClassType(hDlg, lpIO, FALSE);
}
return TRUE; // eat this message
}
else if ((lpIO->dwFlags & IOF_SELECTCREATEFROMFILE) &&
!lpIO->fFileValid)
{
// filename is invalid - set focus back to ec
HWND hWnd;
TCHAR szFile[MAX_PATH];
if (0 != GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY,
szFile, MAX_PATH))
{
OpenFileError(hDlg, lpIO->nErrCode, szFile);
}
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = FALSE;
hWnd = GetDlgItem(hDlg, IDC_IO_FILEDISPLAY);
SetFocus(hWnd);
SendMessage(hWnd, EM_SETSEL, 0, -1);
UpdateClassType(hDlg, lpIO, FALSE);
return TRUE; // eat this message
}
// Copy the necessary information back to the original struct
LPOLEUIINSERTOBJECT lpOIO = lpIO->lpOIO;
lpOIO->dwFlags = lpIO->dwFlags;
if (lpIO->dwFlags & (IOF_SELECTCREATENEW|IOF_SELECTCREATECONTROL))
{
HWND hListBox = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
UINT iCurSel = (UINT)SendMessage(hListBox, LB_GETCURSEL, 0, 0);
if (lpIO->dwFlags & IOF_CHECKDISPLAYASICON)
{
lpOIO->hMetaPict=(HGLOBAL)SendMessage(hListBox,
LB_GETITEMDATA, iCurSel, 0L);
/*
* Set the item data to 0 here so that the cleanup
* code doesn't delete the metafile.
*/
SendMessage(hListBox, LB_SETITEMDATA, iCurSel, 0L);
}
else
lpOIO->hMetaPict = (HGLOBAL)NULL;
TCHAR szBuffer[OLEUI_CCHKEYMAX+OLEUI_CCHCLSIDSTRING];
SendMessage(hListBox, LB_GETTEXT, iCurSel, (LPARAM)szBuffer);
LPTSTR lpszCLSID = PointerToNthField(szBuffer, 2, '\t');
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, lpszCLSID, OLEUI_CCHKEYMAX);
CLSIDFromString(wszCLSID, &lpOIO->clsid);
#else
CLSIDFromString(lpszCLSID, &lpOIO->clsid);
#endif
}
else // IOF_SELECTCREATEFROMFILE
{
if (lpIO->dwFlags & IOF_CHECKDISPLAYASICON)
{
// get metafile here
lpOIO->hMetaPict = (HGLOBAL)SendDlgItemMessage(
hDlg, IDC_IO_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
}
else
lpOIO->hMetaPict = (HGLOBAL)NULL;
}
GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY,
lpIO->szFile, lpOIO->cchFile);
lstrcpyn(lpOIO->lpszFile, lpIO->szFile, lpOIO->cchFile);
SendMessage(hDlg, uMsgEndDialog, OLEUI_OK, 0L);
}
break;
case IDCANCEL:
SendMessage(hDlg, uMsgEndDialog, OLEUI_CANCEL, 0L);
break;
case IDC_OLEUIHELP:
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp,
(WPARAM)hDlg, MAKELPARAM(IDD_INSERTOBJECT, 0));
break;
}
break;
default:
if (iMsg == lpIO->nBrowseHelpID)
{
PostMessage(lpIO->lpOIO->hWndOwner, uMsgHelp,
(WPARAM)hDlg, MAKELPARAM(IDD_INSERTFILEBROWSE, 0));
}
if (iMsg == uMsgBrowseOFN &&
lpIO->lpOIO && lpIO->lpOIO->hWndOwner)
{
SendMessage(lpIO->lpOIO->hWndOwner, uMsgBrowseOFN, wParam, lParam);
}
break;
}
return FALSE;
}
//+---------------------------------------------------------------------------
//
// Function: CheckButton
//
// Synopsis: Handles checking the radio buttons
//
// Arguments: [hDlg] - dialog handle
// [iID] - ID of the button to check
//
// Returns: nothing
//
// History: 1-19-95 stevebl Created
//
// Notes: Used in place of CheckRadioButtons to avoid a GP fault under
// win32s that arises from IDC_IO_CREATENEW, IDC_IO_CREATEFROMFILE
// and IDC_IO_INSERTCONTROL not being contiguous.
//
//----------------------------------------------------------------------------
void CheckButton(HWND hDlg, int iID)
{
CheckDlgButton(hDlg, IDC_IO_CREATENEW, iID == IDC_IO_CREATENEW ? 1 : 0);
CheckDlgButton(hDlg, IDC_IO_CREATEFROMFILE, iID == IDC_IO_CREATEFROMFILE ? 1 : 0);
CheckDlgButton(hDlg, IDC_IO_INSERTCONTROL, iID == IDC_IO_INSERTCONTROL ? 1 : 0);
}
/*
* FInsertObjectInit
*
* Purpose:
* WM_INITIDIALOG handler for the Insert Object dialog box.
*
* Parameters:
* hDlg HWND of the dialog
* wParam WPARAM of the message
* lParam LPARAM of the message
*
* Return Value:
* BOOL Value to return for WM_INITDIALOG.
*/
BOOL FInsertObjectInit(HWND hDlg, WPARAM wParam, LPARAM lParam)
{
// Copy the structure at lParam into our instance memory.
HFONT hFont;
LPINSERTOBJECT lpIO = (LPINSERTOBJECT)LpvStandardInit(hDlg, sizeof(INSERTOBJECT), &hFont);
// PvStandardInit send a termination to us already.
if (NULL == lpIO)
return FALSE;
LPOLEUIINSERTOBJECT lpOIO = (LPOLEUIINSERTOBJECT)lParam;
// Save the original pointer and copy necessary information.
lpIO->lpOIO = lpOIO;
lpIO->nIDD = IDD_INSERTOBJECT;
lpIO->dwFlags = lpOIO->dwFlags;
lpIO->clsid = lpOIO->clsid;
if ((lpOIO->lpszFile) && ('\0' != *lpOIO->lpszFile))
lstrcpyn(lpIO->szFile, lpOIO->lpszFile, MAX_PATH);
else
*(lpIO->szFile) = '\0';
lpIO->hMetaPictFile = (HGLOBAL)NULL;
// If we got a font, send it to the necessary controls.
if (NULL != hFont)
{
SendDlgItemMessage(hDlg, IDC_IO_RESULTTEXT, WM_SETFONT, (WPARAM)hFont, 0L);
SendDlgItemMessage(hDlg, IDC_IO_FILETYPE, WM_SETFONT, (WPARAM)hFont, 0L);
}
// Initilize the file name display to cwd if we don't have any name.
if ('\0' == *(lpIO->szFile))
{
TCHAR szCurDir[MAX_PATH];
int nLen;
GetCurrentDirectory(MAX_PATH, szCurDir);
nLen = lstrlen(szCurDir);
if (nLen != 0 && szCurDir[nLen-1] != '\\')
lstrcat(szCurDir, _T("\\"));
SetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szCurDir);
lpIO->fFileDirty = TRUE; // cwd is not a valid filename
}
else
{
SetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, lpIO->szFile);
if (FValidateInsertFile(hDlg, FALSE, &lpIO->nErrCode))
{
lpIO->fFileDirty = FALSE;
lpIO->fFileValid = TRUE;
}
else
{
lpIO->fFileDirty = TRUE;
lpIO->fFileValid = FALSE;
}
}
// Initialize radio button and related controls
if (lpIO->dwFlags & IOF_CHECKDISPLAYASICON)
{
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
lpIO->fAsIconNew = TRUE;
else
lpIO->fAsIconFile = TRUE;
}
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
CheckButton(hDlg, IDC_IO_CREATENEW);
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
CheckButton(hDlg, IDC_IO_CREATEFROMFILE);
if (lpIO->dwFlags & IOF_SELECTCREATECONTROL)
CheckButton(hDlg, IDC_IO_INSERTCONTROL);
CheckDlgButton(hDlg, IDC_IO_LINKFILE, (BOOL)(0L != (lpIO->dwFlags & IOF_CHECKLINK)));
lpIO->dwFlags &=
~(IOF_SELECTCREATENEW|IOF_SELECTCREATEFROMFILE|IOF_SELECTCREATECONTROL);
FToggleObjectSource(hDlg, lpIO, lpOIO->dwFlags &
(IOF_SELECTCREATENEW|IOF_SELECTCREATEFROMFILE|IOF_SELECTCREATECONTROL));
// Show or hide the help button
if (!(lpIO->dwFlags & IOF_SHOWHELP))
StandardShowDlgItem(hDlg, IDC_OLEUIHELP, SW_HIDE);
// Show or hide the Change icon button
if (lpIO->dwFlags & IOF_HIDECHANGEICON)
DestroyWindow(GetDlgItem(hDlg, IDC_IO_CHANGEICON));
// Hide Insert Control button if necessary
if (!(lpIO->dwFlags & IOF_SHOWINSERTCONTROL))
StandardShowDlgItem(hDlg, IDC_IO_INSERTCONTROL, SW_HIDE);
// Initialize the result display
UpdateClassIcon(hDlg, lpIO, GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST));
SetInsertObjectResults(hDlg, lpIO);
// Change the caption
if (NULL!=lpOIO->lpszCaption)
SetWindowText(hDlg, lpOIO->lpszCaption);
// Hide all DisplayAsIcon related controls if it should be disabled
if (lpIO->dwFlags & IOF_DISABLEDISPLAYASICON)
{
StandardShowDlgItem(hDlg, IDC_IO_DISPLAYASICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_IO_CHANGEICON, SW_HIDE);
StandardShowDlgItem(hDlg, IDC_IO_ICONDISPLAY, SW_HIDE);
}
lpIO->nBrowseHelpID = RegisterWindowMessage(HELPMSGSTRING);
// All Done: call the hook with lCustData
UStandardHook(lpIO, hDlg, WM_INITDIALOG, wParam, lpOIO->lCustData);
/*
* We either set focus to the listbox or the edit control. In either
* case we don't want Windows to do any SetFocus, so we return FALSE.
*/
return FALSE;
}
/*
* URefillClassList
*
* Purpose:
* Fills the class list box with names as appropriate for the current
* flags. This function is called when the user changes the flags
* via the "exclusion" radio buttons.
*
* Note that this function removes any prior contents of the listbox.
*
* Parameters:
* hDlg HWND to the dialog box.
* lpIO pointer to LPINSERTOBJECT structure
*
* Return Value:
* LRESULT Number of strings added to the listbox, -1 on failure.
*/
LRESULT URefillClassList(HWND hDlg, LPINSERTOBJECT lpIO)
{
OleDbgAssert(lpIO->dwFlags & (IOF_SELECTCREATECONTROL|IOF_SELECTCREATENEW));
// always the same dialog ID because they are swapped
HWND hList = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
// determine if already filled
BOOL bFilled;
if (lpIO->dwFlags & IOF_SELECTCREATECONTROL)
bFilled = lpIO->bControlListFilled;
else
bFilled = lpIO->bObjectListFilled;
if (!bFilled)
{
// fill the list
LPOLEUIINSERTOBJECT lpOIO = lpIO->lpOIO;
UINT uResult = UFillClassList(hList, lpOIO->cClsidExclude, lpOIO->lpClsidExclude,
(BOOL)(lpIO->dwFlags & IOF_VERIFYSERVERSEXIST),
(lpIO->dwFlags & IOF_SELECTCREATECONTROL));
// mark the list as filled
if (lpIO->dwFlags & IOF_SELECTCREATECONTROL)
lpIO->bControlListFilled = TRUE;
else
lpIO->bObjectListFilled = TRUE;
}
// return number of items now in the list
return SendMessage(hList, LB_GETCOUNT, 0, 0);
}
/*
* UFillClassList
*
* Purpose:
* Enumerates available OLE object classes from the registration
* database and fills a listbox with those names.
*
* Note that this function removes any prior contents of the listbox.
*
* Parameters:
* hList HWND to the listbox to fill.
* cIDEx UINT number of CLSIDs to exclude in lpIDEx
* lpIDEx LPCLSID to CLSIDs to leave out of the listbox.
* fVerify BOOL indicating if we are to validate existence of
* servers before putting them in the list.
*
* Return Value:
* UINT Number of strings added to the listbox, -1 on failure.
*/
UINT UFillClassList(HWND hList, UINT cIDEx, LPCLSID lpIDEx, BOOL fVerify,
BOOL fExcludeObjects)
{
OleDbgAssert(hList != NULL);
// Set the tab width in the list to push all the tabs off the side.
RECT rc;
GetClientRect(hList, &rc);
DWORD dw = GetDialogBaseUnits();
rc.right =(8*rc.right)/LOWORD(dw); //Convert pixels to 2x dlg units.
SendMessage(hList, LB_SETTABSTOPS, 1, (LPARAM)(LPINT)&rc.right);
// Clean out the existing strings.
SendMessage(hList, LB_RESETCONTENT, 0, 0L);
UINT cStrings = 0;
#if USE_STRING_CACHE==1
if (gInsObjStringCache.OKToUse() && gInsObjStringCache.IsUptodate())
{
// IsUptodate returns false if the cache is not yet populated
// or if any CLSID key changed in the registry since the last
// time the cache was populated.
LPCTSTR lpStr;
// Reset enumerator in the cache.
gInsObjStringCache.ResetEnumerator();
while ( (lpStr = gInsObjStringCache.NextString()) != NULL)
{
SendMessage(hList, LB_ADDSTRING, 0, (LPARAM)lpStr);
cStrings++;
}
}
else
{
// Setup the cache if it was successfully initialized and
// there were no errors in a previous use.
if (gInsObjStringCache.OKToUse())
{
// Clear the string counter and enumerator.
// We will fill up the cache with strings in this round.
gInsObjStringCache.FlushCache();
}
#endif
LPTSTR pszExec = (LPTSTR)OleStdMalloc(OLEUI_CCHKEYMAX_SIZE*4);
if (NULL == pszExec)
return (UINT)-1;
LPTSTR pszClass = pszExec+OLEUI_CCHKEYMAX;
LPTSTR pszKey = pszClass+OLEUI_CCHKEYMAX;
// Open up the root key.
HKEY hKey;
LONG lRet = RegOpenKey(HKEY_CLASSES_ROOT, NULL, &hKey);
if ((LONG)ERROR_SUCCESS!=lRet)
{
OleStdFree((LPVOID)pszExec);
return (UINT)-1;
}
// We will now loop over all ProgIDs and add candidates that
// pass various insertable tests to the ListBox one by one.
while (TRUE)
{
// assume not yet (for handling of OLE1.0 compat case)
BOOL bHaveCLSID = FALSE;
LPTSTR pszID = pszKey+OLEUI_CCHKEYMAX;
lRet = RegEnumKey(hKey, cStrings++, pszClass, OLEUI_CCHKEYMAX_SIZE);
if ((LONG)ERROR_SUCCESS != lRet)
break;
if (!iswalpha(pszClass[0]))
{
// avoids looking into ".ext" type entries under HKCR
continue;
}
// Cheat on lstrcat by using lstrcpy after this string, saving time
UINT cch = lstrlen(pszClass);
// Check for \NotInsertable. If this is found then this overrides
// all other keys; this class will NOT be added to the InsertObject
// list.
lstrcpy(pszClass+cch, TEXT("\\NotInsertable"));
HKEY hKeyTemp = NULL;
lRet = RegOpenKey(hKey, pszClass, &hKeyTemp);
if (hKeyTemp != NULL)
RegCloseKey(hKeyTemp);
if ((LONG)ERROR_SUCCESS == lRet)
continue; // NotInsertable IS found--skip this class
// check if ProgId says "Insertable"
lstrcpy(pszClass+cch, TEXT("\\Insertable"));
hKeyTemp = NULL;
lRet = RegOpenKey(hKey, pszClass, &hKeyTemp);
if (hKeyTemp != NULL)
RegCloseKey(hKeyTemp);
if (lRet == ERROR_SUCCESS || fExcludeObjects)
{
// ProgId says insertable (=> can't be OLE 1.0)
// See if we are displaying Objects or Controls
// Check for CLSID
lstrcpy(pszClass+cch, TEXT("\\CLSID"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszClass, pszID, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS != lRet)
continue; // CLSID subkey not found
bHaveCLSID = TRUE;
// CLSID\ is 6, dw contains pszID length.
cch = 6 + ((UINT)dw/sizeof(TCHAR)) - 1;
lstrcpy(pszExec, TEXT("CLSID\\"));
lstrcpy(pszExec+6, pszID);
// fExcludeObjects is TRUE for the Insert Control box.
// It's FALSE for the Insert Object box.
lstrcpy(pszExec+cch, TEXT("\\Control"));
hKeyTemp = NULL;
lRet = RegOpenKey(hKey, pszExec, &hKeyTemp);
if (hKeyTemp != NULL)
RegCloseKey(hKeyTemp);
if (!fExcludeObjects)
{
// We are listing Objects.
if (lRet == ERROR_SUCCESS)
{
// this is a control
continue;
}
}
else
{
// We are listing controls
if (lRet != ERROR_SUCCESS)
{
// This is an Object
continue;
}
// Some generous soul at some point of time in the past
// decided that for controls it is OK to have the
// Inertable key on the clsid too. So we have to perform
// that additional check before we decide if the control
// entry should be listed or not.
lstrcpy(pszExec+cch, TEXT("\\Insertable"));
hKeyTemp = NULL;
lRet = RegOpenKey(hKey, pszExec, &hKeyTemp);
if (hKeyTemp != NULL)
RegCloseKey(hKeyTemp);
if ((LONG)ERROR_SUCCESS != lRet)
continue;
}
// This is beginning to look like a probable list candidate
// Check \LocalServer32, LocalServer, and \InprocServer
// if we were requested to (IOF_VERIFYSERVERSEXIST)
if (fVerify)
{
// Try LocalServer32
lstrcpy(pszExec+cch, TEXT("\\LocalServer32"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszExec, pszKey, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS != lRet)
{
// Try LocalServer
lstrcpy(pszExec+cch, TEXT("\\LocalServer"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszExec, pszKey, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS != lRet)
{
// Try InprocServer32
lstrcpy(pszExec+cch, TEXT("\\InProcServer32"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszExec, pszKey, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS != lRet)
{
// Try InprocServer
lstrcpy(pszExec+cch, TEXT("\\InProcServer"));
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszExec, pszKey, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS != lRet)
continue;
}
}
}
if (!DoesFileExist(pszKey, OLEUI_CCHKEYMAX))
continue;
} //fVerify
// Get the readable name for the server.
// We'll needed it for the listbox.
*(pszExec+cch) = 0; //Remove \\*Server
dw = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszExec, pszKey, (LONG*)&dw);
if ((LONG)ERROR_SUCCESS!=lRet)
continue;
}
else
{
// We did not see an "Insertable" under ProgId, can
// this be an OLE 1.0 time server entry?
// Check for a \protocol\StdFileEditing\server entry.
lstrcpy(pszClass+cch, TEXT("\\protocol\\StdFileEditing\\server"));
DWORD dwTemp = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszClass, pszKey, (LONG*)&dwTemp);
if ((LONG)ERROR_SUCCESS == lRet)
{
// This is not a control
// skip it if excluding non-controls
if (fExcludeObjects)
continue;
// Check if the EXE actually exists.
// (By default we don't do this for speed.
// If an application wants to, it must provide
// IOF_VERIFYSERVERSEXIST flag in the request)
if (fVerify && !DoesFileExist(pszKey, OLEUI_CCHKEYMAX))
continue;
// get readable class name
dwTemp = OLEUI_CCHKEYMAX_SIZE;
*(pszClass+cch) = 0; // set back to rootkey
lRet=RegQueryValue(hKey, pszClass, pszKey, (LONG*)&dwTemp);
// attempt to get clsid directly from registry
lstrcpy(pszClass+cch, TEXT("\\CLSID"));
dwTemp = OLEUI_CCHKEYMAX_SIZE;
lRet = RegQueryValue(hKey, pszClass, pszID, (LONG*)&dwTemp);
if ((LONG)ERROR_SUCCESS == lRet)
bHaveCLSID = TRUE;
*(pszClass+cch) = 0; // set back to rootkey
}
else
{
// This is not OLE 1.0 either!
continue;
}
}
// At this point we have an insertable candidate.
// or OLE 1.0 time.
// get CLSID to add to listbox.
CLSID clsid;
if (!bHaveCLSID)
{
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszClass[OLEUI_CCHKEYMAX];
ATOW(wszClass, pszClass, OLEUI_CCHKEYMAX);
if (FAILED(CLSIDFromProgID(wszClass, &clsid)))
continue;
LPOLESTR wszID;
if (FAILED(StringFromCLSID(clsid, &wszID)))
continue;
UINT uLen = WTOALEN(wszID);
pszID = (LPTSTR) OleStdMalloc(uLen);
WTOA(pszID, wszID, uLen);
#else
if (FAILED(CLSIDFromProgID(pszClass, &clsid)))
continue;
if (FAILED(StringFromCLSID(clsid, &pszID)))
continue;
#endif
}
else
{
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszID[OLEUI_CCHKEYMAX];
ATOW(wszID, pszID, OLEUI_CCHKEYMAX);
if (FAILED(CLSIDFromString(wszID, &clsid)))
continue;
#else
if (FAILED(CLSIDFromString(pszID, &clsid)))
continue;
#endif
}
// ##### WARNING #####: using 'continue' after this point
// would leak memory so don't use it!
// check if this CLSID is in the exclusion list.
BOOL fExclude = FALSE;
for (UINT i=0; i < cIDEx; i++)
{
if (IsEqualCLSID(clsid, lpIDEx[i]))
{
fExclude=TRUE;
break;
}
}
// don't add objects without names
if (lstrlen(pszKey) > 0 && !fExclude)
{
// We got through all the conditions, add the string.
if (LB_ERR == SendMessage(hList, LB_FINDSTRING, 0, (LPARAM)pszKey))
{
pszKey[cch = lstrlen(pszKey)] = '\t';
lstrcpy(pszKey+cch+1, pszID);
SendMessage(hList, LB_ADDSTRING, 0, (LPARAM)pszKey);
#if USE_STRING_CACHE==1
if (gInsObjStringCache.OKToUse())
{
if (!gInsObjStringCache.AddString(pszKey))
{
// Adding the string failed due to some reason
OleDbgAssert(!"Failure adding string");
// A failed Add() should mark the
// Cache not OK to use any more.
OleDbgAssert(!gInsObjStringCache.OKToUse())
}
}
#endif
}
}
if (!bHaveCLSID)
OleStdFree((LPVOID)pszID);
} // While (TRUE)
RegCloseKey(hKey);
OleStdFree((LPVOID)pszExec);
#if USE_STRING_CACHE
}
#endif
// Select the first item by default
SendMessage(hList, LB_SETCURSEL, 0, 0L);
return cStrings;
}
/*
* FToggleObjectSource
*
* Purpose:
* Handles enabling, disabling, showing, and flag manipulation when the
* user changes between Create New, Insert File, and Link File in the
* Insert Object dialog.
*
* Parameters:
* hDlg HWND of the dialog
* lpIO LPINSERTOBJECT pointing to the dialog structure
* dwOption DWORD flag indicating the option just selected:
* IOF_SELECTCREATENEW or IOF_SELECTCREATEFROMFILE
*
* Return Value:
* BOOL TRUE if the option was already selected, FALSE otherwise.
*/
BOOL FToggleObjectSource(HWND hDlg, LPINSERTOBJECT lpIO, DWORD dwOption)
{
// Skip all of this if we're already selected.
if (lpIO->dwFlags & dwOption)
return TRUE;
#ifdef USE_STRING_CACHE
// if we're using string cache, we need to flush the cache if
// the list previously displayed was of different type
if(IOF_SELECTCREATECONTROL == dwOption)
{
if(g_dwOldListType == IOF_SELECTCREATENEW)
gInsObjStringCache.FlushCache();
g_dwOldListType = IOF_SELECTCREATECONTROL;
}
else if(IOF_SELECTCREATENEW == dwOption)
{
if(g_dwOldListType == IOF_SELECTCREATECONTROL)
gInsObjStringCache.FlushCache();
g_dwOldListType = IOF_SELECTCREATENEW;
}
#endif
// if we're switching from "from file" to "create new" and we've got
// an icon for "from file", then we need to save it so that we can
// show it if the user reselects "from file".
if ((IOF_SELECTCREATENEW == dwOption) &&
(lpIO->dwFlags & IOF_CHECKDISPLAYASICON))
{
lpIO->hMetaPictFile = (HGLOBAL)SendDlgItemMessage(hDlg,
IDC_IO_ICONDISPLAY, IBXM_IMAGEGET, 0, 0L);
}
/*
* 1. Change the Display As Icon checked state to reflect the
* selection for this option, stored in the fAsIcon* flags.
*/
BOOL fTemp;
if (IOF_SELECTCREATENEW == dwOption)
fTemp = lpIO->fAsIconNew;
else if (IOF_SELECTCREATEFROMFILE == dwOption)
fTemp = lpIO->fAsIconFile;
else
fTemp = FALSE;
if (fTemp)
lpIO->dwFlags |= IOF_CHECKDISPLAYASICON;
else
lpIO->dwFlags &= ~IOF_CHECKDISPLAYASICON;
CheckDlgButton(hDlg, IDC_IO_DISPLAYASICON,
(BOOL)(0L!=(lpIO->dwFlags & IOF_CHECKDISPLAYASICON)));
EnableChangeIconButton(hDlg, fTemp);
/*
* Display Icon: Enabled on Create New or on Create from File if
* there is a selected file.
*/
if (IOF_SELECTCREATENEW == dwOption)
fTemp = TRUE;
else if (IOF_SELECTCREATEFROMFILE == dwOption)
fTemp = lpIO->fFileSelected;
else
fTemp = FALSE;
if (IOF_SELECTCREATECONTROL == dwOption)
StandardShowDlgItem(hDlg, IDC_IO_DISPLAYASICON, SW_HIDE);
else if (!(lpIO->dwFlags & IOF_DISABLEDISPLAYASICON))
StandardShowDlgItem(hDlg, IDC_IO_DISPLAYASICON, SW_SHOW);
StandardEnableDlgItem(hDlg, IDC_IO_DISPLAYASICON, fTemp);
// OK and Link follow the same enabling as Display As Icon.
StandardEnableDlgItem(hDlg, IDOK,
fTemp || IOF_SELECTCREATECONTROL == dwOption);
StandardEnableDlgItem(hDlg, IDC_IO_LINKFILE, fTemp);
// Enable Browse... when Create from File is selected.
fTemp = (IOF_SELECTCREATEFROMFILE != dwOption);
StandardEnableDlgItem(hDlg, IDC_IO_FILE, !fTemp);
StandardEnableDlgItem(hDlg, IDC_IO_FILEDISPLAY, !fTemp);
// Switch Object Type & Control Type listboxes if necessary
HWND hWnd1 = NULL, hWnd2 = NULL;
if (lpIO->bControlListActive && IOF_SELECTCREATENEW == dwOption)
{
hWnd1 = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
hWnd2 = GetDlgItem(hDlg, IDC_IO_CONTROLTYPELIST);
SetWindowLong(hWnd1, GWL_ID, IDC_IO_CONTROLTYPELIST);
SetWindowLong(hWnd2, GWL_ID, IDC_IO_OBJECTTYPELIST);
lpIO->bControlListActive = FALSE;
}
else if (!lpIO->bControlListActive && IOF_SELECTCREATECONTROL == dwOption)
{
hWnd1 = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
hWnd2 = GetDlgItem(hDlg, IDC_IO_CONTROLTYPELIST);
SetWindowLong(hWnd1, GWL_ID, IDC_IO_CONTROLTYPELIST);
SetWindowLong(hWnd2, GWL_ID, IDC_IO_OBJECTTYPELIST);
lpIO->bControlListActive = TRUE;
}
// Clear out any existing selection flags and set the new one
DWORD dwTemp = IOF_SELECTCREATENEW | IOF_SELECTCREATEFROMFILE |
IOF_SELECTCREATECONTROL;
lpIO->dwFlags = (lpIO->dwFlags & ~dwTemp) | dwOption;
if (dwOption & (IOF_SELECTCREATENEW|IOF_SELECTCREATECONTROL))
{
// refill class list box if necessary
if ((lpIO->bControlListActive && !lpIO->bControlListFilled) ||
(!lpIO->bControlListActive && !lpIO->bObjectListFilled))
{
URefillClassList(hDlg, lpIO);
}
}
if (hWnd1 != NULL && hWnd2 != NULL)
{
ShowWindow(hWnd1, SW_HIDE);
ShowWindow(hWnd2, SW_SHOW);
}
/*
* Switch between Object Type listbox on Create New and
* file buttons on others.
*/
UINT uTemp = (fTemp) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_IO_OBJECTTYPELIST, uTemp);
StandardShowDlgItem(hDlg, IDC_IO_OBJECTTYPETEXT, uTemp);
uTemp = (fTemp) ? SW_HIDE : SW_SHOWNORMAL;
StandardShowDlgItem(hDlg, IDC_IO_FILETEXT, uTemp);
StandardShowDlgItem(hDlg, IDC_IO_FILETYPE, uTemp);
StandardShowDlgItem(hDlg, IDC_IO_FILEDISPLAY, uTemp);
StandardShowDlgItem(hDlg, IDC_IO_FILE, uTemp);
// Link is always hidden if IOF_DISABLELINK is set.
if (IOF_DISABLELINK & lpIO->dwFlags)
uTemp = SW_HIDE;
StandardShowDlgItem(hDlg, IDC_IO_LINKFILE, uTemp); //last use of uTemp
// Remove add button when not in Insert control mode
uTemp = (IOF_SELECTCREATECONTROL == dwOption) ? SW_SHOW : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_IO_ADDCONTROL, uTemp);
/*
* Show or hide controls as appropriate. Do the icon
* display last because it will take some time to repaint.
* If we do it first then the dialog looks too sluggish.
*/
int i = (lpIO->dwFlags & IOF_CHECKDISPLAYASICON) ? SW_SHOWNORMAL : SW_HIDE;
StandardShowDlgItem(hDlg, IDC_IO_CHANGEICON, i);
StandardShowDlgItem(hDlg, IDC_IO_ICONDISPLAY, i);
EnableChangeIconButton(hDlg, SW_SHOWNORMAL == i);
// Change result display
SetInsertObjectResults(hDlg, lpIO);
/*
* For Create New, twiddle the listbox to think we selected it
* so it updates the icon from the object type. set the focus
* to the list box.
*
* For Insert or Link file, set the focus to the filename button
* and update the icon if necessary.
*/
if (fTemp)
{
UpdateClassIcon(hDlg, lpIO, GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST));
SetFocus(GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST));
}
else
{
if (lpIO->fAsIconFile && (NULL != lpIO->hMetaPictFile) )
{
SendDlgItemMessage(hDlg, IDC_IO_ICONDISPLAY, IBXM_IMAGESET, 0,
(LPARAM)lpIO->hMetaPictFile);
lpIO->hMetaPictFile = 0;
}
else
{
UpdateClassIcon(hDlg, lpIO, NULL);
}
SetFocus(GetDlgItem(hDlg, IDC_IO_FILE));
}
return FALSE;
}
/*
* UpdateClassType
*
* Purpose:
* Updates static text control to reflect current file type. Assumes
* a valid filename.
*
* Parameters
* hDlg HWND of the dialog box.
* lpIO LPINSERTOBJECT pointing to the dialog structure
* fSet TRUE to set the text, FALSE to explicitly clear it
*
* Return Value:
* None
*/
void UpdateClassType(HWND hDlg, LPINSERTOBJECT lpIO, BOOL fSet)
{
LPTSTR lpszFileType = NULL;
if (fSet)
{
TCHAR szFileName[MAX_PATH];
GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szFileName, MAX_PATH);
CLSID clsid;
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszFileName[MAX_PATH];
LPOLESTR wszFileType = NULL;
ATOW(wszFileName, szFileName, MAX_PATH);
if (S_OK == GetClassFile(wszFileName, &clsid))
OleRegGetUserType(clsid, USERCLASSTYPE_FULL, &wszFileType);
if (NULL != wszFileType)
{
UINT uLen = WTOALEN(wszFileType);
lpszFileType = (LPTSTR)OleStdMalloc(uLen);
if (NULL != lpszFileType)
{
WTOA(lpszFileType, wszFileType, uLen);
}
OleStdFree(wszFileType);
}
#else
if (S_OK == GetClassFile(szFileName, &clsid))
OleRegGetUserType(clsid, USERCLASSTYPE_FULL, &lpszFileType);
#endif
}
if (lpszFileType != NULL)
{
SetDlgItemText(hDlg, IDC_IO_FILETYPE, lpszFileType);
OleStdFree(lpszFileType);
}
}
/*
* UpdateClassIcon
*
* Purpose:
* Handles LBN_SELCHANGE for the Object Type listbox. On a selection
* change, we extract an icon from the server handling the currently
* selected object type using the utility function HIconFromClass.
* Note that we depend on the behavior of FillClassList to stuff the
* object class after a tab in the listbox string that we hide from
* view (see WM_INITDIALOG).
*
* Parameters
* hDlg HWND of the dialog box.
* lpIO LPINSERTOBJECT pointing to the dialog structure
* hList HWND of the Object Type listbox.
*
* Return Value:
* None
*/
static void UpdateClassIcon(HWND hDlg, LPINSERTOBJECT lpIO, HWND hList)
{
// If Display as Icon is not selected, exit
if (!(lpIO->dwFlags & IOF_CHECKDISPLAYASICON))
return;
/*
* When we change object type selection, get the new icon for that
* type into our structure and update it in the display. We use the
* class in the listbox when Create New is selected or the association
* with the extension in Create From File.
*/
DWORD cb = MAX_PATH;
UINT iSel;
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
iSel = (UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (LB_ERR==(int)iSel)
return;
// Check to see if we've already got the hMetaPict for this item
LRESULT dwRet = SendMessage(hList, LB_GETITEMDATA, (WPARAM)iSel, 0L);
HGLOBAL hMetaPict=(HGLOBAL)dwRet;
if (hMetaPict)
{
// Yep, we've already got it, so just display it and return.
SendDlgItemMessage(hDlg, IDC_IO_ICONDISPLAY, IBXM_IMAGESET,
0, (LPARAM)hMetaPict);
return;
}
iSel = (UINT)SendMessage(hList, LB_GETCURSEL, 0, 0L);
if (LB_ERR==(int)iSel)
return;
// Allocate a string to hold the entire listbox string
cb = (DWORD)SendMessage(hList, LB_GETTEXTLEN, iSel, 0L);
}
LPTSTR pszName = (LPTSTR)OleStdMalloc((cb+1)*sizeof(TCHAR));
if (NULL == pszName)
return;
*pszName = 0;
// Get the clsid we want.
HGLOBAL hMetaPict;
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
{
// Grab the classname string from the list
SendMessage(hList, LB_GETTEXT, iSel, (LPARAM)pszName);
// Set pointer to CLSID (string)
LPTSTR pszCLSID = PointerToNthField(pszName, 2, '\t');
// Get CLSID from the string and then accociated icon
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, pszCLSID, OLEUI_CCHKEYMAX);
HRESULT hr = CLSIDFromString(wszCLSID, &lpIO->clsid);
#else
HRESULT hr = CLSIDFromString(pszCLSID, &lpIO->clsid);
#endif
if (FAILED(hr))
lpIO->clsid = GUID_NULL;
hMetaPict = OleGetIconOfClass(lpIO->clsid, NULL, TRUE);
}
else
{
// Get the class from the filename
GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, pszName, MAX_PATH);
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszName[MAX_PATH];
ATOW(wszName, pszName, MAX_PATH);
hMetaPict = OleGetIconOfFile(wszName,
lpIO->dwFlags & IOF_CHECKLINK ? TRUE : FALSE);
#else
hMetaPict = OleGetIconOfFile(pszName,
lpIO->dwFlags & IOF_CHECKLINK ? TRUE : FALSE);
#endif
}
// Replace the current display with this new one.
SendDlgItemMessage(hDlg, IDC_IO_ICONDISPLAY, IBXM_IMAGESET,
0, (LPARAM)hMetaPict);
// Enable or disable "Change Icon" button depending on whether
// we've got a valid filename or not.
EnableChangeIconButton(hDlg, hMetaPict ? TRUE : FALSE);
// Save the hMetaPict so that we won't have to re-create
if (lpIO->dwFlags & IOF_SELECTCREATENEW)
SendMessage(hList, LB_SETITEMDATA, (WPARAM)iSel, (LPARAM)hMetaPict);
OleStdFree(pszName);
}
/*
* SetInsertObjectResults
*
* Purpose:
* Centralizes setting of the Result and icon displays in the Insert Object
* dialog. Handles loading the appropriate string from the module's
* resources and setting the text, displaying the proper result picture,
* and showing the proper icon.
*
* Parameters:
* hDlg HWND of the dialog box so we can access controls.
* lpIO LPINSERTOBJECT in which we assume that the
* current radiobutton and Display as Icon selections
* are set. We use the state of those variables to
* determine which string we use.
*
* Return Value:
* None
*/
void SetInsertObjectResults(HWND hDlg, LPINSERTOBJECT lpIO)
{
/*
* We need scratch memory for loading the stringtable string, loading
* the object type from the listbox, and constructing the final string.
* We therefore allocate three buffers as large as the maximum message
* length (512) plus the object type, guaranteeing that we have enough
* in all cases.
*/
UINT i = (UINT)SendDlgItemMessage(hDlg, IDC_IO_OBJECTTYPELIST, LB_GETCURSEL, 0, 0L);
UINT cch = 512;
if (i != LB_ERR)
{
cch += (UINT)SendDlgItemMessage(hDlg, IDC_IO_OBJECTTYPELIST, LB_GETTEXTLEN, i, 0L);
}
LPTSTR pszTemp= (LPTSTR)OleStdMalloc((DWORD)(4*cch)*sizeof(TCHAR));
if (NULL == pszTemp)
return;
LPTSTR psz1 = pszTemp;
LPTSTR psz2 = psz1+cch;
LPTSTR psz3 = psz2+cch;
LPTSTR psz4 = psz3+cch;
BOOL fAsIcon = (0L != (lpIO->dwFlags & IOF_CHECKDISPLAYASICON));
UINT iImage=0, iString1=0, iString2=0;
if (lpIO->dwFlags & (IOF_SELECTCREATENEW|IOF_SELECTCREATECONTROL))
{
iString1 = fAsIcon ? IDS_IORESULTNEWICON : IDS_IORESULTNEW;
iString2 = 0;
iImage = fAsIcon ? RESULTIMAGE_EMBEDICON : RESULTIMAGE_EMBED;
}
if (lpIO->dwFlags & IOF_SELECTCREATEFROMFILE)
{
// Pay attention to Link checkbox
if (lpIO->dwFlags & IOF_CHECKLINK)
{
iString1 = fAsIcon ? IDS_IORESULTLINKFILEICON1 : IDS_IORESULTLINKFILE1;
iString2 = fAsIcon ? IDS_IORESULTLINKFILEICON2 : IDS_IORESULTLINKFILE2;
iImage =fAsIcon ? RESULTIMAGE_LINKICON : RESULTIMAGE_LINK;
}
else
{
iString1 = IDS_IORESULTFROMFILE1;
iString2 = fAsIcon ? IDS_IORESULTFROMFILEICON2 : IDS_IORESULTFROMFILE2;
iImage =fAsIcon ? RESULTIMAGE_EMBEDICON : RESULTIMAGE_EMBED;
}
}
// Default is an empty string.
*psz1=0;
if (0 != LoadString(_g_hOleStdResInst, iString1, psz1, cch))
{
// Load second string, if necessary
if (0 != iString2 &&
0 != LoadString(_g_hOleStdResInst, iString2, psz4, cch))
{
lstrcat(psz1, psz4); // concatenate strings together.
}
// In Create New, do the extra step of inserting the object type string
if (lpIO->dwFlags & (IOF_SELECTCREATENEW|IOF_SELECTCREATECONTROL))
{
if (i == LB_ERR)
{
SetDlgItemText(hDlg, IDC_IO_RESULTTEXT, NULL);
// Change the image.
SendDlgItemMessage(hDlg, IDC_IO_RESULTIMAGE, RIM_IMAGESET, RESULTIMAGE_NONE, 0L);
OleStdFree((LPVOID)pszTemp);
return;
}
*psz2=NULL;
SendDlgItemMessage(hDlg, IDC_IO_OBJECTTYPELIST, LB_GETTEXT, i, (LPARAM)psz2);
// Null terminate at any tab (before the classname)
LPTSTR pszT = psz2;
while (_T('\t') != *pszT && 0 != *pszT)
pszT++;
OleDbgAssert(pszT < psz3);
*pszT=0;
// Build the string and point psz1 to it.
wsprintf(psz3, psz1, psz2);
psz1 = psz3;
}
}
// If LoadString failed, we simply clear out the results (*psz1=0 above)
SetDlgItemText(hDlg, IDC_IO_RESULTTEXT, psz1);
// Go change the image and Presto! There you have it.
SendDlgItemMessage(hDlg, IDC_IO_RESULTIMAGE, RIM_IMAGESET, iImage, 0L);
OleStdFree((LPVOID)pszTemp);
}
/*
* FValidateInsertFile
*
* Purpose:
* Given a possibly partial pathname from the file edit control,
* attempt to locate the file and if found, store the full path
* in the edit control IDC_IO_FILEDISPLAY.
*
* Parameters:
* hDlg HWND of the dialog box.
* fTellUser BOOL TRUE if function should tell user, FALSE if
* function should validate silently.
*
* Return Value:
* BOOL TRUE if the file is acceptable, FALSE otherwise.
*/
BOOL FValidateInsertFile(HWND hDlg, BOOL fTellUser, UINT FAR* lpnErrCode)
{
*lpnErrCode = 0;
/*
* To validate we attempt OpenFile on the string. If OpenFile
* fails then we display an error. If not, OpenFile will store
* the complete path to that file in the OFSTRUCT which we can
* then stuff in the edit control.
*/
TCHAR szFile[MAX_PATH];
if (0 == GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szFile, MAX_PATH))
return FALSE; // #4569 : return FALSE when there is no text in ctl
// if file is currently open (ie. sharing violation) OleCreateFromFile
// and OleCreateLinkToFile can still succeed; do not consider it an
// error.
if (!DoesFileExist(szFile, MAX_PATH))
{
*lpnErrCode = ERROR_FILE_NOT_FOUND;
if (fTellUser)
OpenFileError(hDlg, ERROR_FILE_NOT_FOUND, szFile);
return FALSE;
}
// get full pathname, since the file exists
TCHAR szPath[MAX_PATH];
LPTSTR lpszDummy;
GetFullPathName(szFile, sizeof(szPath)/sizeof(TCHAR), szPath, &lpszDummy);
SetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szPath);
return TRUE;
}
/*
* InsertObjectCleanup
*
* Purpose:
* Clears cached icon metafiles from those stored in the listbox.
*
* Parameters:
* hDlg HWND of the dialog.
*
* Return Value:
* None
*/
void InsertObjectCleanup(HWND hDlg)
{
HWND hList = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
UINT iItems= (UINT)SendMessage(hList, LB_GETCOUNT, 0, 0L);
for (UINT i = 0; i < iItems; i++)
{
LRESULT dwRet = SendMessage(hList, LB_GETITEMDATA, (WPARAM)i, 0L);
HGLOBAL hMetaPict=(HGLOBAL)dwRet;
if (hMetaPict)
OleUIMetafilePictIconFree(hMetaPict);
}
}
void EnableChangeIconButton(HWND hDlg, BOOL fEnable)
{
HRESULT hr = S_OK;
if(fEnable){
HWND hList = GetDlgItem(hDlg, IDC_IO_OBJECTTYPELIST);
int iCurSel = (int)SendMessage(hList, LB_GETCURSEL, 0, 0L);
CLSID clsid = {0};
if (1 == IsDlgButtonChecked(hDlg, IDC_IO_CREATENEW))
{
LPTSTR pszString = (LPTSTR)OleStdMalloc(
OLEUI_CCHKEYMAX_SIZE + OLEUI_CCHCLSIDSTRING_SIZE);
if(NULL == pszString)
{
fEnable = FALSE;
goto CLEANUP;
}
SendMessage(hList, LB_GETTEXT, iCurSel, (LPARAM)pszString);
if(0 == *pszString)
{
fEnable = FALSE;
OleStdFree((LPVOID)pszString);
goto CLEANUP;
}
LPTSTR pszCLSID = PointerToNthField(pszString, 2, '\t');
if(NULL == pszCLSID || 0 == *pszCLSID)
{
fEnable = FALSE;
OleStdFree((LPVOID)pszString);
goto CLEANUP;
}
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszCLSID[OLEUI_CCHKEYMAX];
ATOW(wszCLSID, pszCLSID, OLEUI_CCHKEYMAX);
hr = CLSIDFromString(wszCLSID, &clsid);
#else
hr = CLSIDFromString(pszCLSID, &clsid);
#endif
OleStdFree((LPVOID)pszString);
if(FAILED(hr))
{
fEnable = FALSE;
}
}
else // IOF_SELECTCREATEFROMFILE
{
TCHAR szFileName[MAX_PATH] = {0};
GetDlgItemText(hDlg, IDC_IO_FILEDISPLAY, szFileName, MAX_PATH);
#if defined(WIN32) && !defined(UNICODE)
OLECHAR wszFileName[MAX_PATH] = {0};
ATOW(wszFileName, szFileName, MAX_PATH);
if (S_OK != GetClassFile(wszFileName, &clsid))
#else
if (S_OK != GetClassFile(szFileName, &clsid))
#endif
{
int istrlen = lstrlen(szFileName);
LPTSTR lpszExtension = szFileName + istrlen -1;
while (lpszExtension > szFileName &&
*lpszExtension != '.')
{
lpszExtension = CharPrev(szFileName, lpszExtension);
}
*szFileName = 0;
GetAssociatedExecutable(lpszExtension, szFileName);
if(0 == *szFileName){
fEnable = FALSE;
}
}
}
}
CLEANUP:
StandardEnableDlgItem(hDlg, IDC_IO_CHANGEICON, fEnable);
}
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