Icon 转换为 BMP

roger_xiong 2005-02-06 09:58:55

不知道大家有没有用过网上一个类，能够将jpg、gif、ico等图片转换bmp图片

//-----------------------------------------------------------------------------
// Picture (Implementations) Version 1.00
//
// Routins 4 Showing Picture Files... (.BMP .DIB .EMF .GIF .ICO .JPG .WMF)
//
// Author: Dr. Yovav Gad, EMail: Sources@SuperMain.com ,Web: www.SuperMain.com
//=============================================================================

但是这个类实际上不能将ico保存为bmp，而是保存为了16色ico。

各位有没有一个办法能够将ico保存为bmp的代码？？？如果能够将他保存的代码修改一下，使其能够将ico正确的保存为bmp，那是最合适不过的了！！！！！！！

下面是他保存的代码：

//-----------------------------------------------------------------------------
// Does: Saves The Picture That Is Stored In The IPicture Object As a Bitmap
// ~~~~ (Converts From Any Known Picture Type To a Bitmap / Icon File)
//
// InPut: sFilePathName - Path And FileName Target To Save
// ~~~~~
//
// OutPut: TRUE If Succeeded...
// ~~~~~~
//-----------------------------------------------------------------------------
BOOL CMyPicture::SaveAsBitmap(CString sFilePathName)
//=============================================================================
{
BOOL bResult = FALSE;
ILockBytes *Buffer = 0;
IStorage *pStorage = 0;
IStream *FileStream = 0;
BYTE *BufferBytes;
STATSTG BytesStatistics;
DWORD OutData;
long OutStream;
CFile BitmapFile;
CFileException e;
double SkipFloat = 0;
DWORD ByteSkip = 0;
_ULARGE_INTEGER RealData;

CreateILockBytesOnHGlobal(NULL, TRUE, &Buffer); // Create ILockBytes Buffer

HRESULT hr = ::StgCreateDocfileOnILockBytes(Buffer,
STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, &pStorage);

hr = pStorage->CreateStream(L"PICTURE",
STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, 0, &FileStream);

m_IPicture->SaveAsFile(FileStream, TRUE, &OutStream); // Copy Data Stream
FileStream->Release();
pStorage->Release();
Buffer->Flush();

// Get Statistics For Final Size Of Byte Array
Buffer->Stat(&BytesStatistics, STATFLAG_NONAME);

// Cut UnNeeded Data Coming From SaveAsFile() (Leave Only "Pure" Picture Data)
SkipFloat = (double(OutStream) / 512); // Must Be In a 512 Blocks...
if(SkipFloat > DWORD(SkipFloat)) ByteSkip = (DWORD)SkipFloat + 1;
else ByteSkip = (DWORD)SkipFloat;
ByteSkip = ByteSkip * 512; // Must Be In a 512 Blocks...

// Find Difference Between The Two Values
ByteSkip = (DWORD)(BytesStatistics.cbSize.QuadPart - ByteSkip);

// Allocate Only The "Pure" Picture Data
RealData.LowPart = 0;
RealData.HighPart = 0;
RealData.QuadPart = ByteSkip;
BufferBytes = (BYTE*)malloc(OutStream);
if(BufferBytes == NULL)
{
Buffer->Release();
HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
MessageBoxEx(hWnd, "Can not allocate enough memory\t", ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
}

Buffer->ReadAt(RealData, BufferBytes, OutStream, &OutData);

if(BitmapFile.Open(sFilePathName, CFile::typeBinary | CFile::modeCreate | CFile::modeWrite, &e))
{
BitmapFile.Write(BufferBytes, OutData);
BitmapFile.Close();
bResult = TRUE;
}
else // Write File Failed...
{
TCHAR szCause[255];
e.GetErrorMessage(szCause, 255, NULL);
HWND hWnd = AfxGetApp()->GetMainWnd()->m_hWnd;
MessageBoxEx(hWnd, szCause, ERROR_TITLE, MB_OK | MB_ICONSTOP, LANG_ENGLISH);
bResult = FALSE;
}

Buffer->Release();
free(BufferBytes);

return(bResult);
}

...全文