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⇤ ← Revision 1 as of 2009-11-18 20:41:49
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| Use this function to map a pixel value into the RGBA components for a given pixel format. | Use this function to get RGBA values from a pixel in the specified format. |
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| ||'''pixel'''|||| ||'''format'''|||| ||'''r'''|||| ||'''g'''|||| ||'''b'''|||| ||'''a'''|||| |
||'''pixel'''||a pixel|| ||'''format'''||an [[SDL_PixelFormat]] structure describing the format of the pixel|| ||'''r'''||a pointer to a value that will be filled into the red component|| ||'''g'''||a pointer to a value that will be filled into the green component|| ||'''b'''||a pointer to a value that will be filled into the blue component|| ||'''a'''||a pointer to a value that will be filled into the alpha component|| |
SDL_GetRGBA
Use this function to get RGBA values from a pixel in the specified format.
Syntax
void SDL_GetRGBA(Uint32 pixel,
const SDL_PixelFormat* format,
Uint8* r,
Uint8* g,
Uint8* b,
Uint8* a)
Function Parameters
pixel |
a pixel |
format |
an SDL_PixelFormat structure describing the format of the pixel |
r |
a pointer to a value that will be filled into the red component |
g |
a pointer to a value that will be filled into the green component |
b |
a pointer to a value that will be filled into the blue component |
a |
a pointer to a value that will be filled into the alpha component |
Code Examples
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Remarks
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