SDL_WriteSurfacePixel3
Writes a single pixel to a surface.
Usage
#include "SDL3/SDL.h"
bool SDL_WriteSurfacePixel(SDL_Surface *surface, int x, int y, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
Header file
Defined in SDL3/SDL_surface.h
Overview
This function prioritizes correctness over speed: it is suitable for unit tests, but is not intended for use in a game engine.
Like SDL_MapRGBA , this uses the entire 0..255 range when converting color components from pixel formats with less than 8 bits per RGB component.
Function parameters
surface
|
the surface to write. |
|---|---|
x
|
the horizontal coordinate, 0 <= x < width. |
y
|
the vertical coordinate, 0 <= y < height. |
r
|
the red channel value, 0-255. |
g
|
the green channel value, 0-255. |
b
|
the blue channel value, 0-255. |
a
|
the alpha channel value, 0-255. |
Return value
Returns true on success or false on failure; call
SDL_GetError () for more information.
Thread safety
This function is not thread safe.