I've seen this question many times here. Maybe you can add it as a new FAQ... if you have time. Thanks.

Vlad

>You need several API calls:
>
>

DECLARE INTEGER GetDC IN WIN32API INTEGER hWnd
>DECLARE INTEGER GetActiveWindow IN WIN32API
>DECLARE INTEGER GetDeviceCaps IN WIN32API ;
>   INTEGER hDC, ;
>   INTEGER nIndex
>DECLARE INTEGER ReleaseDC IN WIN32API INTEGER hDC
>#DEFINE BITSPIXEL 12
>LOCAL nDC, nBitsPerPixel
>nDC = GetDC(GetActiveWindow())
>nBitsPerPixel = GetDeviceCaps(nDC, BITSPIXEL)
>=ReleaseDC(nDC)

>
>nBitsPerPixel returns the color depth; 8 = 256 Color, 16 = High Color (64K), 24 or 32 are TrueColor modes. There are other values; these are the most common ones encountered.