将24位及32位图像数据保存到位图中

BOOL SaveImageDataToBMP( LPCTSTR lpFileName, DWORD width, DWORD height, DWORD bits, void* pData )

{

	if( bits != 24 && bits != 32 )

		return FALSE;

	BITMAPFILEHEADER bfh;

	ZeroMemory( &bfh, sizeof(BITMAPFILEHEADER) );



	bfh.bfType = ((WORD)('M'<<8)|'B');

	bfh.bfSize = 0;

	bfh.bfReserved2 = 0;

	bfh.bfReserved1 = 0;

	bfh.bfOffBits = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER);



	BITMAPINFO BitmapInfo;

	BitmapInfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);

	BitmapInfo.bmiHeader.biPlanes = 1;

	BitmapInfo.bmiHeader.biBitCount = bits;

	BitmapInfo.bmiHeader.biCompression = BI_RGB;

	BitmapInfo.bmiHeader.biSizeImage = 0;

	BitmapInfo.bmiHeader.biXPelsPerMeter = 0;

	BitmapInfo.bmiHeader.biYPelsPerMeter = 0;

	BitmapInfo.bmiHeader.biClrUsed = 0;

	BitmapInfo.bmiHeader.biClrImportant = 0;

	BitmapInfo.bmiHeader.biWidth = width;

	BitmapInfo.bmiHeader.biHeight = height;



	int dwPitch = width * bits / 8;

	while( dwPitch % 4 != 0 )

		dwPitch++;



	FILE* pFile = _tfopen( lpFileName, _T("wb") );

	fwrite( &bfh, sizeof(BITMAPFILEHEADER), 1, pFile );

	fwrite( &BitmapInfo, sizeof(BITMAPINFOHEADER), 1, pFile );

	fwrite( pData, sizeof(char), height * dwPitch, pFile );

	fclose( pFile );

	return TRUE;

}