754 lines
18 KiB
C
754 lines
18 KiB
C
/*
|
|
|
|
* MODULE : PREVIEW.C
|
|
|
|
*/
|
|
|
|
#include <windows.h>
|
|
#include <windowsx.h>
|
|
#include <mmsystem.h>
|
|
#include <commdlg.h>
|
|
#include "preview.h"
|
|
#include "mciwnd.h"
|
|
|
|
typedef struct {
|
|
HWND hwnd; // common dialog handle.
|
|
LPOPENFILENAME pofn;
|
|
|
|
LPARAM lCustData; // hold old value
|
|
DWORD Flags;
|
|
UINT (CALLBACK *lpfnHook)(HWND, UINT, WPARAM, LPARAM);
|
|
|
|
RECT rcPreview;
|
|
RECT rcImage;
|
|
RECT rcText;
|
|
HWND hwndMci;
|
|
HFONT hfont;
|
|
HPALETTE hpal;
|
|
HANDLE hdib;
|
|
char Title[128];
|
|
|
|
} PreviewStuff, FAR *PPreviewStuff;
|
|
|
|
#define PREVIEW_PROP "PreviewStuff"
|
|
|
|
#ifdef WIN32
|
|
#define SetPreviewStuff(hwnd, p) SetProp(hwnd,PREVIEW_PROP,(LPVOID)(p))
|
|
#define GetPreviewStuff(hwnd) (PPreviewStuff)(LPVOID)GetProp(hwnd, PREVIEW_PROP)
|
|
#define RemovePreviewStuff(hwnd) RemoveProp(hwnd,PREVIEW_PROP)
|
|
#else
|
|
#define SetPreviewStuff(hwnd, p) SetProp(hwnd,PREVIEW_PROP,HIWORD(p))
|
|
#define GetPreviewStuff(hwnd) (PPreviewStuff)MAKELONG(0, GetProp(hwnd, PREVIEW_PROP))
|
|
#define RemovePreviewStuff(hwnd) RemoveProp(hwnd,PREVIEW_PROP)
|
|
#endif
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewOpen (HWND hwnd, LPOPENFILENAME pofn);
|
|
static BOOL PreviewFile (PPreviewStuff p, LPSTR szFile);
|
|
static BOOL PreviewPaint(PPreviewStuff p);
|
|
static BOOL PreviewSize (PPreviewStuff p);
|
|
static BOOL PreviewClose(PPreviewStuff p);
|
|
|
|
static HANDLE GetRiffDisp(LPSTR lpszFile, LPSTR szText, int iLen);
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewOpen(HWND hwnd, LPOPENFILENAME pofn)
|
|
{
|
|
LOGFONT lf;
|
|
PPreviewStuff p;
|
|
RECT rc;
|
|
|
|
p = (LPVOID)pofn->lCustData;
|
|
pofn->lCustData = p->lCustData;
|
|
|
|
SetPreviewStuff(hwnd, p);
|
|
|
|
p->hwnd = hwnd;
|
|
p->pofn = pofn;
|
|
|
|
|
|
// create a MCI window for preview.
|
|
|
|
p->hwndMci = MCIWndCreate(p->hwnd, NULL,
|
|
// MCIWNDF_NOAUTOSIZEWINDOW |
|
|
// MCIWNDF_NOPLAYBAR |
|
|
// MCIWNDF_NOAUTOSIZEMOVIE |
|
|
MCIWNDF_NOMENU |
|
|
// MCIWNDF_SHOWNAME |
|
|
// MCIWNDF_SHOWPOS |
|
|
// MCIWNDF_SHOWMODE |
|
|
// MCIWNDF_RECORD |
|
|
MCIWNDF_NOERRORDLG |
|
|
WS_CHILD | WS_BORDER,
|
|
NULL);
|
|
|
|
|
|
// locate the preview in the lower corner of the dialog (below the
|
|
// cancel button)
|
|
|
|
GetClientRect(hwnd, &p->rcPreview);
|
|
GetWindowRect(GetDlgItem(hwnd, IDCANCEL), &rc);
|
|
ScreenToClient(hwnd, (LPPOINT)&rc);
|
|
ScreenToClient(hwnd, (LPPOINT)&rc+1);
|
|
|
|
// The open space we're allowed to use in the dialog is different in NT and on
|
|
// Win31. Under NT there is a network button at the bottom of the dialog on
|
|
// the right hand side, so we use the area from just under the CANCEL button to
|
|
// a little more than 1 button height from the bottom of the dialog.
|
|
// Under Win31, the network button is under CANCEL, so we use the area a little
|
|
// over one button height under CANCEL, to just about the bottom of the dialog.
|
|
#ifdef WIN32
|
|
if (1)
|
|
#else
|
|
if (GetWinFlags() & WF_WINNT)
|
|
#endif
|
|
{
|
|
p->rcPreview.top = rc.bottom + 4;
|
|
p->rcPreview.left = rc.left;
|
|
p->rcPreview.right = rc.right;
|
|
p->rcPreview.bottom -= (rc.bottom - rc.top) + 12;
|
|
} else {
|
|
p->rcPreview.top = rc.bottom + (rc.bottom - rc.top) + 12;
|
|
p->rcPreview.left = rc.left;
|
|
p->rcPreview.right = rc.right;
|
|
p->rcPreview.bottom -= 4; // leave a little room at the bottom
|
|
}
|
|
|
|
|
|
// create a font to use.
|
|
|
|
SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(lf), (LPVOID)&lf, 0);
|
|
p->hfont = CreateFontIndirect(&lf);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewClose(PPreviewStuff p)
|
|
{
|
|
if (p == NULL)
|
|
return FALSE;
|
|
|
|
PreviewFile(p, NULL);
|
|
|
|
RemovePreviewStuff(p->hwnd);
|
|
|
|
if (p->hfont)
|
|
DeleteObject(p->hfont);
|
|
|
|
if (p->hwndMci)
|
|
MCIWndDestroy(p->hwndMci);
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
#define SLASH(c) ((c) == '/' || (c) == '\\')
|
|
|
|
static LPSTR NiceName(LPSTR szPath)
|
|
{
|
|
LPSTR sz;
|
|
LPSTR lpsztmp;
|
|
|
|
for (sz=szPath; *sz; sz++)
|
|
;
|
|
for (; sz>szPath && !SLASH(*sz) && *sz!=':'; sz =AnsiPrev(szPath, sz))
|
|
;
|
|
if(sz>szPath) sz = AnsiNext(sz) ;
|
|
|
|
for(lpsztmp = sz; *lpsztmp && *lpsztmp != '.'; lpsztmp = AnsiNext(lpsztmp))
|
|
;
|
|
*lpsztmp = '\0';
|
|
|
|
AnsiLower(sz);
|
|
AnsiUpperBuff(sz, 1);
|
|
|
|
return sz;
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewFile(PPreviewStuff p, LPSTR szFile)
|
|
{
|
|
if (p == NULL || !p->hwndMci)
|
|
return FALSE;
|
|
|
|
p->Title[0] = 0;
|
|
|
|
ShowWindow(p->hwndMci, SW_HIDE);
|
|
MCIWndClose(p->hwndMci);
|
|
|
|
if (p->hdib)
|
|
GlobalFree(p->hdib);
|
|
|
|
if (p->hpal)
|
|
DeleteObject(p->hpal);
|
|
|
|
p->hdib = NULL;
|
|
p->hpal = NULL;
|
|
|
|
PreviewPaint(p);
|
|
|
|
if (szFile == NULL)
|
|
return TRUE;
|
|
|
|
if (MCIWndOpen(p->hwndMci, szFile, 0) == 0)
|
|
{
|
|
lstrcpy(p->Title, NiceName(szFile));
|
|
|
|
if (MCIWndUseTime(p->hwndMci) == 0)
|
|
{
|
|
LONG len;
|
|
UINT min,sec;
|
|
|
|
len = MCIWndGetLength(p->hwndMci);
|
|
|
|
if (len > 0)
|
|
{
|
|
#define ONE_HOUR (60ul*60ul*1000ul)
|
|
#define ONE_MINUTE (60ul*1000ul)
|
|
#define ONE_SECOND (1000ul)
|
|
|
|
min = (UINT)(len / ONE_MINUTE) % 60;
|
|
sec = (UINT)(len / ONE_SECOND) % 60;
|
|
|
|
wsprintf(p->Title + lstrlen(p->Title), " (%02d:%02d)", min, sec);
|
|
}
|
|
}
|
|
}
|
|
|
|
PreviewSize(p);
|
|
PreviewPaint(p);
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewSize(PPreviewStuff p)
|
|
{
|
|
RECT rc;
|
|
RECT rcImage;
|
|
RECT rcText;
|
|
RECT rcPreview;
|
|
HDC hdc;
|
|
int dx;
|
|
int dy;
|
|
int dyPlayBar;
|
|
|
|
SetRectEmpty(&p->rcText);
|
|
SetRectEmpty(&p->rcImage);
|
|
|
|
|
|
// if nothing to do clear it.
|
|
|
|
if (p->Title[0] == 0 && p->hdib == NULL)
|
|
return FALSE;
|
|
|
|
rcPreview = p->rcPreview;
|
|
|
|
|
|
// compute the text rect, using DrawText
|
|
|
|
hdc = GetDC(p->hwnd);
|
|
SelectObject(hdc, p->hfont);
|
|
|
|
rcText = rcPreview;
|
|
rcText.bottom = rcText.top;
|
|
|
|
DrawText(hdc, p->Title, -1, &rcText, DT_CALCRECT|DT_LEFT|DT_WORDBREAK);
|
|
ReleaseDC(p->hwnd, hdc);
|
|
|
|
|
|
// compute the image size
|
|
|
|
MCIWndChangeStyles(p->hwndMci, MCIWNDF_NOPLAYBAR, MCIWNDF_NOPLAYBAR);
|
|
GetWindowRect(p->hwndMci, &rc);
|
|
dx = rc.right - rc.left;
|
|
dy = rc.bottom - rc.top;
|
|
MCIWndChangeStyles(p->hwndMci, MCIWNDF_NOPLAYBAR, 0);
|
|
GetWindowRect(p->hwndMci, &rc);
|
|
dyPlayBar = rc.bottom - rc.top - dy;
|
|
|
|
rcImage = rcPreview;
|
|
rcImage.bottom -= dyPlayBar;
|
|
|
|
|
|
// if wider than preview area scale to fit
|
|
|
|
if (dx > rcImage.right - rcImage.left)
|
|
{
|
|
rcImage.bottom = rcImage.top + MulDiv(dy,rcImage.right-rcImage.left,dx);
|
|
}
|
|
|
|
// if x2 will fit then use it
|
|
|
|
else if (dx * 2 < rcImage.right - rcImage.left)
|
|
{
|
|
rcImage.right = rcImage.left + dx*2;
|
|
rcImage.bottom = rcImage.top + dy*2;
|
|
}
|
|
|
|
// else center the image in the preview area
|
|
|
|
else
|
|
{
|
|
rcImage.right = rcImage.left + dx;
|
|
rcImage.bottom = rcImage.top + dy;
|
|
}
|
|
|
|
if (rcImage.bottom > rcPreview.bottom - (rcText.bottom - rcText.top) - dyPlayBar)
|
|
{
|
|
rcImage.bottom = rcPreview.bottom - (rcText.bottom - rcText.top) - dyPlayBar;
|
|
rcImage.right = rcPreview.left + MulDiv(dx,rcImage.bottom-rcImage.top,dy);
|
|
rcImage.left = rcPreview.left;
|
|
}
|
|
|
|
rcImage.bottom += dyPlayBar;
|
|
|
|
|
|
// now center
|
|
|
|
dx = ((rcPreview.right - rcPreview.left) - (rcText.right - rcText.left))/2;
|
|
OffsetRect(&rcText, dx, 0);
|
|
|
|
dx = ((rcPreview.right - rcPreview.left) - (rcImage.right - rcImage.left))/2;
|
|
OffsetRect(&rcImage, dx, 0);
|
|
|
|
dy = rcPreview.bottom - rcPreview.top;
|
|
dy -= rcImage.bottom - rcImage.top;
|
|
dy -= rcText.bottom - rcText.top;
|
|
|
|
if (dy < 0)
|
|
dy = 0;
|
|
else
|
|
dy = dy / 2;
|
|
|
|
OffsetRect(&rcImage, 0, dy);
|
|
OffsetRect(&rcText, 0, dy + rcImage.bottom - rcImage.top + 2);
|
|
|
|
|
|
// store RECTs
|
|
|
|
p->rcImage = rcImage;
|
|
p->rcText = rcText;
|
|
|
|
|
|
// position window.
|
|
|
|
SetWindowPos(p->hwndMci, NULL, rcImage.left, rcImage.top,
|
|
rcImage.right - rcImage.left, rcImage.bottom - rcImage.top,
|
|
SWP_NOZORDER | SWP_NOACTIVATE);
|
|
|
|
ShowWindow(p->hwndMci, SW_SHOW);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL PreviewPaint(PPreviewStuff p)
|
|
{
|
|
HDC hdc;
|
|
HBRUSH hbr;
|
|
HWND hwnd = p->hwnd;
|
|
|
|
if (p == NULL)
|
|
return TRUE;
|
|
|
|
hdc = GetDC(hwnd);
|
|
hbr = (HBRUSH)DefWindowProc(hwnd, WM_CTLCOLOR, (WPARAM)hdc, MAKELONG(hwnd, CTLCOLOR_DLG));
|
|
//FillRect(hdc, &p->rcPreview, hbr);
|
|
FillRect(hdc, &p->rcText, hbr);
|
|
|
|
SelectObject(hdc, p->hfont);
|
|
DrawText(hdc, p->Title, -1, &p->rcText, DT_LEFT|DT_WORDBREAK);
|
|
|
|
ReleaseDC(hwnd, hdc);
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
/* Combo boxes */
|
|
#define cmb1 0x0470
|
|
#define cmb2 0x0471
|
|
/* Listboxes */
|
|
#define lst1 0x0460
|
|
#define lst2 0x0461
|
|
/* Edit controls */
|
|
#define edt1 0x0480
|
|
|
|
#define ID_TIMER 1234
|
|
#define PREVIEWWAIT 1000
|
|
|
|
WORD FAR PASCAL _loadds GetFileNamePreviewHook(HWND hwnd, unsigned msg, WORD wParam, LONG lParam)
|
|
{
|
|
int i;
|
|
char ach[80];
|
|
|
|
PPreviewStuff p;
|
|
|
|
p = GetPreviewStuff(hwnd);
|
|
|
|
switch (msg) {
|
|
case WM_COMMAND:
|
|
switch (wParam)
|
|
{
|
|
case lst1:
|
|
if (HIWORD(lParam) == LBN_SELCHANGE)
|
|
{
|
|
KillTimer(hwnd, ID_TIMER);
|
|
SetTimer(hwnd, ID_TIMER, PREVIEWWAIT, NULL);
|
|
}
|
|
break;
|
|
case IDOK:
|
|
case IDCANCEL:
|
|
KillTimer(hwnd, ID_TIMER);
|
|
PreviewFile(p, NULL);
|
|
break;
|
|
case cmb1:
|
|
case cmb2:
|
|
case lst2:
|
|
if (HIWORD(lParam) == LBN_SELCHANGE)
|
|
{
|
|
KillTimer(hwnd, ID_TIMER);
|
|
PreviewFile(p, NULL);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
case WM_TIMER:
|
|
if (wParam == ID_TIMER)
|
|
{
|
|
KillTimer(hwnd, ID_TIMER);
|
|
|
|
ach[0] = 0;
|
|
i = (int)SendDlgItemMessage(hwnd, lst1, LB_GETCURSEL, 0, 0L);
|
|
SendDlgItemMessage(hwnd, lst1, LB_GETTEXT, i, (LONG)(LPSTR)ach);
|
|
PreviewFile(p, ach);
|
|
return TRUE;
|
|
}
|
|
break;
|
|
case WM_QUERYNEWPALETTE:
|
|
case WM_PALETTECHANGED:
|
|
if (p && p->hwndMci)
|
|
SendMessage(p->hwndMci, msg, wParam, lParam);
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
PreviewPaint(p);
|
|
break;
|
|
case WM_INITDIALOG:
|
|
PreviewOpen(hwnd, (LPOPENFILENAME)lParam);
|
|
|
|
p = GetPreviewStuff(hwnd);
|
|
|
|
if (!(p->Flags & OFN_ENABLEHOOK))
|
|
return TRUE;
|
|
|
|
break;
|
|
|
|
case WM_DESTROY:
|
|
PreviewClose(p);
|
|
break;
|
|
}
|
|
|
|
if (p && (p->Flags & OFN_ENABLEHOOK))
|
|
return p->lpfnHook(hwnd, msg, wParam, lParam);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
static BOOL GetFileNamePreview(LPOPENFILENAME lpofn, BOOL fSave)
|
|
{
|
|
BOOL f;
|
|
PPreviewStuff p;
|
|
|
|
// Link to COMMDLG
|
|
HINSTANCE h;
|
|
BOOL (WINAPI *GetFileNameProc)(OPENFILENAME FAR*) = NULL;
|
|
|
|
if ((h = LoadLibrary("COMMDLG.DLL")) >= HINSTANCE_ERROR)
|
|
(FARPROC)GetFileNameProc = GetProcAddress(h,
|
|
fSave ? "GetSaveFileName" : "GetOpenFileName");
|
|
|
|
if (GetFileNameProc == NULL)
|
|
return FALSE; //!!! what's the right error here?
|
|
|
|
|
|
#ifndef OFN_NONETWORKBUTTON
|
|
#define OFN_NONETWORKBUTTON 0x00020000
|
|
#endif
|
|
|
|
// If we have a READ ONLY checkbox, or both HELP and NETWORK, then it's in
|
|
// our way, so get rid of it. (keep NETWORK, lose HELP)
|
|
|
|
if (!(lpofn->Flags & OFN_HIDEREADONLY))
|
|
lpofn->Flags |= OFN_HIDEREADONLY;
|
|
if ((lpofn->Flags & OFN_SHOWHELP) && !(lpofn->Flags & OFN_NONETWORKBUTTON))
|
|
lpofn->Flags &= ~OFN_SHOWHELP;
|
|
|
|
p = (LPVOID)GlobalAllocPtr(GHND, sizeof(PreviewStuff));
|
|
|
|
if (p == NULL)
|
|
{
|
|
f = GetFileNameProc(lpofn);
|
|
}
|
|
else
|
|
{
|
|
p->lpfnHook = lpofn->lpfnHook;
|
|
p->Flags = lpofn->Flags;
|
|
p->lCustData = lpofn->lCustData;
|
|
|
|
lpofn->lpfnHook = GetFileNamePreviewHook;
|
|
lpofn->Flags |= OFN_ENABLEHOOK;
|
|
lpofn->lCustData = (LPARAM)p;
|
|
|
|
f = GetFileNameProc(lpofn);
|
|
|
|
lpofn->lpfnHook = p->lpfnHook;
|
|
lpofn->Flags = p->Flags;
|
|
|
|
GlobalFreePtr(p);
|
|
}
|
|
|
|
FreeLibrary(h); //!!! should we free DLL?
|
|
return f;
|
|
}
|
|
|
|
/*
|
|
* @doc EXTERNAL
|
|
|
|
* @api BOOL | GetOpenFileNamePreview | This is just like <f GetOpenFileName>
|
|
* in COMMDLG, but with a preview window so people can see what movie
|
|
* they're opening.
|
|
|
|
* @parm LPOPENFILENAME | lpofn | See the documentation for <f GetOpenFileName>.
|
|
|
|
* @rdesc Returns true if a file was opened.
|
|
|
|
* @xref GetOpenFileName
|
|
|
|
*/
|
|
BOOL FAR PASCAL _loadds GetOpenFileNamePreview(LPOPENFILENAME lpofn)
|
|
{
|
|
return GetFileNamePreview(lpofn, FALSE);
|
|
}
|
|
|
|
/*
|
|
* @doc EXTERNAL
|
|
|
|
* @api BOOL | GetSaveFileNamePreview | This is just like <f GetSaveFileName>
|
|
* in COMMDLG, but with a preview window so people can see what movie
|
|
* they're saving over.
|
|
|
|
* @parm LPOPENFILENAME | lpofn | See the documentation for <f GetSaveFileName>.
|
|
|
|
* @rdesc Returns true if a file was opened.
|
|
|
|
* @xref GetSaveFileName
|
|
|
|
*/
|
|
BOOL FAR PASCAL _loadds GetSaveFileNamePreview(LPOPENFILENAME lpofn)
|
|
{
|
|
return GetFileNamePreview(lpofn, TRUE);
|
|
}
|
|
|
|
#if 0 // DONT NEED THIS
|
|
|
|
/*
|
|
|
|
*/
|
|
|
|
//#define FOURCC_RIFF mmioFOURCC('R','I','F','F')
|
|
#define FOURCC_INFO mmioFOURCC('I','N','F','O')
|
|
#define FOURCC_DISP mmioFOURCC('D','I','S','P')
|
|
#define FOURCC_INAM mmioFOURCC('I','N','A','M')
|
|
#define FOURCC_ISBJ mmioFOURCC('I','S','B','J')
|
|
|
|
#define DibSizeImage(lpbi) (\
|
|
(DWORD)(UINT)((((int)lpbi->biBitCount*(int)lpbi->biWidth+31)&~31)>>3) * \
|
|
(DWORD)(UINT)lpbi->biHeight)
|
|
|
|
#define DibSize(lpbi) \
|
|
(lpbi->biSize + ((int)lpbi->biClrUsed * sizeof(RGBQUAD)) + lpbi->biSizeImage)
|
|
|
|
#define DibNumColors(lpbi) \
|
|
(lpbi->biBitCount <= 8 ? (1 << (int)lpbi->biBitCount) : 0)
|
|
|
|
/*
|
|
|
|
* get both the DISP(CF_DIB) and the DISP(CF_TEXT) info in one pass, this is
|
|
* much faster than doing multiple passes over the file.
|
|
|
|
*/
|
|
|
|
static HANDLE GetRiffDisp(LPSTR lpszFile, LPSTR szText, int iLen)
|
|
{
|
|
HMMIO hmmio;
|
|
MMCKINFO ck;
|
|
MMCKINFO ckINFO;
|
|
MMCKINFO ckRIFF;
|
|
HANDLE h = NULL;
|
|
LONG lSize;
|
|
DWORD dw;
|
|
HCURSOR hcur = NULL;
|
|
|
|
if (szText)
|
|
szText[0] = 0;
|
|
|
|
/* Open the file */
|
|
hmmio = mmioOpen(lpszFile, NULL, MMIO_ALLOCBUF | MMIO_READ);
|
|
|
|
if (hmmio == NULL)
|
|
return NULL;
|
|
|
|
mmioSeek(hmmio, 0, SEEK_SET);
|
|
|
|
/* descend the input file into the RIFF chunk */
|
|
if (mmioDescend(hmmio, &ckRIFF, NULL, 0) != 0)
|
|
goto error;
|
|
|
|
if (ckRIFF.ckid != FOURCC_RIFF)
|
|
goto error;
|
|
|
|
while (!mmioDescend(hmmio, &ck, &ckRIFF, 0))
|
|
{
|
|
if (ck.ckid == FOURCC_DISP)
|
|
{
|
|
if (hcur == NULL)
|
|
hcur = SetCursor(LoadCursor(NULL, IDC_WAIT));
|
|
|
|
/* Read dword into dw, break if read unsuccessful */
|
|
if (mmioRead(hmmio, (LPVOID)&dw, sizeof(dw)) != sizeof(dw))
|
|
goto error;
|
|
|
|
/* Find out how much memory to allocate */
|
|
lSize = ck.cksize - sizeof(dw);
|
|
|
|
if ((int)dw == CF_DIB && h == NULL)
|
|
{
|
|
/* get a handle to memory to hold the description and lock it down */
|
|
if ((h = GlobalAlloc(GHND, lSize+4)) == NULL)
|
|
goto error;
|
|
|
|
if (mmioRead(hmmio, GlobalLock(h), lSize) != lSize)
|
|
goto error;
|
|
}
|
|
else if ((int)dw == CF_TEXT && szText[0] == 0)
|
|
{
|
|
if (lSize > iLen-1)
|
|
lSize = iLen-1;
|
|
|
|
szText[lSize] = 0;
|
|
|
|
if (mmioRead(hmmio, szText, lSize) != lSize)
|
|
goto error;
|
|
}
|
|
}
|
|
else if (ck.ckid == FOURCC_LIST &&
|
|
ck.fccType == FOURCC_INFO &&
|
|
szText[0] == 0)
|
|
{
|
|
while (!mmioDescend(hmmio, &ckINFO, &ck, 0))
|
|
{
|
|
switch (ckINFO.ckid)
|
|
{
|
|
case FOURCC_INAM:
|
|
// case FOURCC_ISBJ:
|
|
|
|
lSize = ck.cksize;
|
|
|
|
if (lSize > iLen-1)
|
|
lSize = iLen-1;
|
|
|
|
szText[lSize] = 0;
|
|
|
|
if (mmioRead(hmmio, szText, lSize) != lSize)
|
|
goto error;
|
|
|
|
break;
|
|
}
|
|
|
|
if (mmioAscend(hmmio, &ckINFO, 0))
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
// if we have both a picture and a title, then exit.
|
|
|
|
if (h != NULL && szText[0] != 0)
|
|
break;
|
|
|
|
/* Ascend so that we can descend into next chunk
|
|
*/
|
|
if (mmioAscend(hmmio, &ck, 0))
|
|
break;
|
|
}
|
|
|
|
goto exit;
|
|
|
|
error:
|
|
if (h)
|
|
GlobalFree(h);
|
|
|
|
h = NULL;
|
|
ckRIFF.fccType = 0;
|
|
|
|
exit:
|
|
mmioClose(hmmio, 0);
|
|
|
|
|
|
// verify and correct the DIB
|
|
|
|
if (h)
|
|
{
|
|
LPBITMAPINFOHEADER lpbi;
|
|
|
|
lpbi = (LPVOID)GlobalLock(h);
|
|
|
|
if (lpbi->biSize < sizeof(BITMAPINFOHEADER))
|
|
goto error;
|
|
|
|
if (lpbi->biClrUsed == 0)
|
|
lpbi->biClrUsed = DibNumColors(lpbi);
|
|
|
|
if (lpbi->biSizeImage == 0)
|
|
lpbi->biSizeImage = DibSizeImage(lpbi);
|
|
|
|
if (DibSize(lpbi) > GlobalSize(h))
|
|
goto error;
|
|
}
|
|
|
|
if (hcur)
|
|
SetCursor(hcur);
|
|
|
|
return h;
|
|
}
|
|
|
|
#endif // DONT NEED THIS
|