CreateDIBsectionFromDibFile

HBITMAP CreateDIBsectionFromDibFile(PTSTR szFileName)
{
    BITMAPFILEHEADER bmfh;
    BITMAPINFO * pbmi;
    BYTE * pBits;
    BOOL bSuccess;
    DWORD dwInfoSize, dwBytesRead;
    HANDLE hFile;
    HBITMAP hBitmap;
    // Open the file: read access, prohibit write access
    hFile = CreateFile(szFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
    if (hFile == INVALID_HANDLE_VALUE)
        return NULL;
    // Read in the BITMAPFILEHEADER
    bSuccess = ReadFile(hFile, &bmfh, sizeof(BITMAPFILEHEADER), &dwBytesRead, NULL);
    if (!bSuccess || (dwBytesRead != sizeof(BITMAPFILEHEADER)) || (bmfh.bfType != *(WORD *) "BM"))
    {
        CloseHandle(hFile);
        return NULL;
    }
    // Allocate memory for the BITMAPINFO structure & read it in
    dwInfoSize = bmfh.bfOffBits - sizeof(BITMAPFILEHEADER);
    pbmi = (BITMAPINFO *)malloc(dwInfoSize);
    bSuccess = ReadFile(hFile, pbmi, dwInfoSize, &dwBytesRead, NULL);
    if (!bSuccess || (dwBytesRead != dwInfoSize))
    {
        free(pbmi);
        CloseHandle(hFile);
        return NULL;
    }
    // Create the DIB Section
    hBitmap = CreateDIBSection(NULL, pbmi, DIB_RGB_COLORS, (void **)&pBits, NULL, 0);
    if (hBitmap == NULL)
    {
        free(pbmi);
        CloseHandle(hFile);
        return NULL;
    }
    // Read in the bitmap bits
    ReadFile(hFile, pBits, bmfh.bfSize - bmfh.bfOffBits, &dwBytesRead, NULL);
    free(pbmi);
    CloseHandle(hFile);
    return hBitmap;
}
 

原文地址：https://blog.csdn.net/guxue365/article/details/142703581

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