SDL_GetGammaRamp

Use this function to get the gamma ramp for the currently selected display.

Syntax

int SDL_GetGammaRamp(Uint16* red,
                     Uint16* green,
                     Uint16* blue)

Function Parameters

red

a pointer to an array of 256 values filled in with the translation table for the red channel, or NULL

green

a pointer to an array of 256 values filled in with the translation table for the green channel, or NULL

blue

a pointer to an array of 256 values filled in with the translation table for the blue channel, or NULL

Return Value

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

Code Examples

You can add your code example here

Remarks

Not all display hardware is able to change gamma; it will return -1 if gamma is unsupported.

You can pass NULL for any of the channels if you don't need those values.


CategoryAPI, CategoryVideo

SDL_GetGammaRamp (last edited 2010-10-16 04:59:57 by SheenaSmith)

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