RAD Studio VCL Reference
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Graphics.CreateGrayMappedBmp Function

Remaps the standard gray colors in a bitmap with the system grays.

Pascal
function CreateGrayMappedBmp(Handle: HBITMAP): HBITMAP;
C++
HBITMAP CreateGrayMappedBmp(HBITMAP Handle);

Graphics

Call CreateGrayMappedBmp to create a bitmap that uses the system gray colors (clBtnHightlight, clBtnFace, clBtnShadow and clBtnText) from a bitmap that uses standard gray scale colors (clWhite, clSilver, clGray, and clBlack). This allows an application to dynamically create images that match the user's control panel settings, given a base image.  

CreateGrayMappedBmp creates a new bitmap. It does not alter the original bitmap, which has the handle specified by the Handle parameter.

Note: CreateGrayMappedBmp does not work with bitmaps that have more than 256 colors. For bitmaps with more than 256 colors (8bpp), this function returns the original bitmap.
 

 

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