How many colors can the graphic card display?

This article has not been rated yet. After reading, feel free to leave comments and rate it.

You can use WIN API function GetDeviceCaps() to calculate the number of colors supported by the current video mode^*). This function will return the number of maximum simultaneous colors current video device can handle. The var parameter will be set to the the number of bits per pixel or 0 in case of an error.

	function GetColorsCount (var bitsperpixel : integer) : longint; var h : hDC; begin Result := 0; bitsperpixel := 0; try h := GetDC(0); bitsperpixel := GetDeviceCaps(h, PLANES) * GetDeviceCaps(h, BITSPIXEL); Result := 1 shl bitsperpixel; finally ReleaseDC(0, h); end; end;

^*) Look at the ChangeDisplaySettings routine (in the Win32 API help) to change the mode at runtime

Comments:

Email address (not necessary): Rate as Off-topic Very Helpful Helpful Ok article Not useful Very bad	Hide my email when showing my comment. Please notify me once a day about new comments on this topic. Please provide a valid email address if you select this option.
It seems that you are from Los Angeles, US . Info/ Feedback on this	Show city and country Show country only Hide my location
You can mark text as 'quoted' by putting [quote] .. [/quote] around it.
Please type in the code:
Add a picture: Please do not post inappropriate pictures. Inappropriate pictures include pictures of minors and nudity. The owner of this web site reserves the right to delete such material.