Как из BITMAPINFOHEADER сделать HBITMAP?

MSDN:

CreateDIBitmap
The following code demonstrates calling CreateDIBitmap with the usual case:

hBitmap = CreateDIBitmap(hDC, lpInfo, CBM_INIT, lpBits, lpInfo,
wUsage);

This is equivalent to:

hBitmap = CreateCompatibleBitmap(hDC, (WORD)lpInfo->biWidth,
(WORD)lpInfo->biHeight);
SetDIBits(hDC, hBitmap, 0, (WORD)lpInfo->biHeight, lpBits, lpInfo,
wUsage);

GDI's implementation skips the SetDIBits part if the third parameter is not set with the CBM_INIT flag. This function makes for nice shortcut coding of the conversion from DIB to device-dependent bitmap.