SDL Wiki
(This is the legacy documentation for stable SDL2, the current stable version; SDL3 is the current development version.)

SDL_SetSurfaceColorMod

Set an additional color value multiplied into blit operations.

Syntax

int SDL_SetSurfaceColorMod(SDL_Surface * surface,
                           Uint8 r, Uint8 g, Uint8 b);

Function Parameters

surface the SDL_Surface structure to update
r the red color value multiplied into blit operations
g the green color value multiplied into blit operations
b the blue color value multiplied into blit operations

Return Value

Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

Remarks

When this surface is blitted, during the blit operation each source color channel is modulated by the appropriate color value according to the following formula:

srcC = srcC * (color / 255)

Version

This function is available since SDL 2.0.0.


CategoryAPI


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