Unit 'agraphics'	Package
[Overview][Constants][Types][Procedures and functions][Variables][Index]	[#os4units]

GetRGB4

Inquire value of entry in ColorMap.

Declaration

Source position: agraphics.pas line 2390

function GetRGB4(

ColorMap: PColorMap;

Entry: LongWord

):LongInt;

`ColorMap`		A pointer to ColorMap structure
`Entry`		Index into colormap

Returns -1 if no valid entry return Word RGB value 4 bits per run right justified

Read and format a value from the ColorMap.

Intuition's DisplayBeep() changes color 0. Reading Color 0 during a DisplayBeep() will lead to incorrect results.

SetRGB4		Set one color register for this viewport.
LoadRGB4		Load RGB color values from table.
GetColorMap		Allocate and initialize Colormap
FreeColorMap		Free the ColorMap structure and return memory to free memory pool.