Windows Shell

Shell Color Palette Handling Functions

ColorAdjustLuma
ColorHLSToRGB

ColorRGBToHLS

SHCreateShellPalette

SHGetInverseCMAP

ColorAdjustLuma

Changes the luminance of a RGB value. Hue and saturation are not affected.
 

DECLARE FUNCTION ColorAdjustLuma _

  LIB "SHLWAPI.DLL" _

  ALIAS "ColorAdjustLuma" ( _

  BYVAL clrRGB AS DWORD _

, BYVAL n AS LONG _

, BYVAL fScale AS LONG _

) AS DWORD
 

ColorHLSToRGB

Converts colors from hue-luminance-saturation (HLS) to RGB format.
 

DECLARE FUNCTION ColorHLSToRGB _

  LIB "SHLWAPI.DLL" _

  ALIAS "ColorHLSToRGB" ( _

  BYVAL wHue AS WORD _

, BYVAL wLuminance AS WORD _

, BYVAL wSaturation AS WORD _

) AS DWORD
 

ColorRGBToHLS

Converts colors from RGB to hue-luminance-saturation (HLS) format.
 

DECLARE SUB ColorRGBToHLS _

  LIB "SHLWAPI.DLL" _

  ALIAS "ColorRGBToHLS" ( _

  BYVAL clrRGB AS DWORD _

, BYREF wHue AS WORD _

, BYREF wLuminance AS WORD _

, BYREF wSaturation AS WORD _

)
 

SHCreateShellPalette

Creates a halftone palette for the specified device context.
 

DECLARE FUNCTION SHCreateShellPalette _

  LIB "SHLWAPI.DLL" _

  ALIAS "SHCreateShellPalette" ( _

  BYVAL HDC AS DWORD _

) AS DWORD
 

SHGetInverseCMAP

Retrieves the inverse color table mapping for the halftone palette.
 

DECLARE FUNCTION SHGetInverseCMAP _

  LIB "SHLWAPI.DLL" _

  ALIAS "SHGetInverseCMAP" ( _

  BYVAL pbMap AS DWORD _

, BYVAL cbMap AS DWORD _

) AS LONG