123 lines
3.0 KiB
C++
123 lines
3.0 KiB
C++
#include "shellprv.h"
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#pragma hdrstop
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#include "pidl.h"
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#include "ids.h"
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#include "drives.h"
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#include "mtpt.h"
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#include "shitemid.h"
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#include "xiconwrap.h"
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#include "hwcmmn.h"
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// From drivfldr.cpp
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int _GetSHID(int iDrive);
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class CDrvExtIconBase : public CExtractIconBase
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{
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public:
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HRESULT _GetIconLocationW(UINT uFlags, LPWSTR pszIconFile, UINT cchMax, int *piIndex, UINT *pwFlags);
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HRESULT _ExtractW(LPCWSTR pszFile, UINT nIconIndex, HICON *phiconLarge, HICON *phiconSmall, UINT nIconSize);
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HRESULT _Init(LPCWSTR pszDrive)
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{
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_pszDrive = StrDup(pszDrive);
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return _pszDrive ? S_OK : E_OUTOFMEMORY;
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}
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CDrvExtIconBase() : CExtractIconBase(), _pszDrive(NULL) {}
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protected:
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~CDrvExtIconBase();
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private:
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LPWSTR _pszDrive;
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};
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CDrvExtIconBase::~CDrvExtIconBase()
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{
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LocalFree((HLOCAL)_pszDrive); // accepts NULL
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}
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STDAPI SHCreateDrvExtIcon(LPCWSTR pszDrive, REFIID riid, void **ppv)
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{
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HRESULT hr;
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CDrvExtIconBase* pdeib = new CDrvExtIconBase();
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if (pdeib)
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{
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hr = pdeib->_Init(pszDrive);
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if (SUCCEEDED(hr))
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hr = pdeib->QueryInterface(riid, ppv);
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pdeib->Release();
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}
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else
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{
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hr = E_OUTOFMEMORY;
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}
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return hr;
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}
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HRESULT CDrvExtIconBase::_GetIconLocationW(UINT uFlags, LPWSTR pszIconFile,
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UINT cchMax, int *piIndex, UINT *pwFlags)
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{
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HRESULT hr = S_OK;
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pszIconFile[0] = 0;
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if (uFlags & GIL_DEFAULTICON)
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{
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*piIndex = CMountPoint::GetSuperPlainDriveIcon(_pszDrive,
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GetDriveType(_pszDrive));
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lstrcpyn(pszIconFile, TEXT("shell32.dll"), cchMax);
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*pwFlags = GIL_PERCLASS;
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// Make sure our default icon makes it to the cache
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Shell_GetCachedImageIndex(c_szShell32Dll, *piIndex, *pwFlags);
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}
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else
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{
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if (!(uFlags & GIL_ASYNC))
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{
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CMountPoint* pmtpt = CMountPoint::GetMountPoint(_pszDrive);
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if (pmtpt)
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{
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*piIndex = pmtpt->GetIcon(pszIconFile, cchMax);
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if (!*pszIconFile)
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{
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GetModuleFileName(HINST_THISDLL, pszIconFile, cchMax);
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}
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pmtpt->StoreIconForUpdateImage(Shell_GetCachedImageIndex(
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pszIconFile, *piIndex, 0));
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pmtpt->Release();
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}
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else
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{
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*piIndex = CMountPoint::GetSuperPlainDriveIcon(_pszDrive,
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GetDriveType(_pszDrive));
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lstrcpyn(pszIconFile, TEXT("shell32.dll"), cchMax);
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}
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*pwFlags = GIL_PERCLASS;
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}
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else
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{
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hr = E_PENDING;
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}
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}
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return hr;
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}
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HRESULT CDrvExtIconBase::_ExtractW(LPCWSTR pszFile, UINT nIconIndex,
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HICON *phiconLarge, HICON *phiconSmall, UINT nIconSize)
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{
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return SHDefExtractIcon(pszFile, nIconIndex, GIL_PERCLASS, phiconLarge,
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phiconSmall, nIconSize);
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} |