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Revision 3 as of 2010-01-22 06:04:49
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Editor: SheenaSmith
Comment: Update TextureID > Texture*
Revision 4 as of 2010-08-29 21:38:42
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Editor: SheenaSmith
Comment: update content (w/ Sam); remove 'draft' note
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Use this function to get the additional alpha value used in render copy operations. Use this function to get the additional alpha value multiplied into render copy operations.
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||'''alpha'''||a pointer filled in with the source alpha value|| ||'''alpha'''||a pointer filled in with the current alpha value||
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Returns 0 on success or -1 if the texture is not valid; call [[SDL_GetError]]() for more information. Returns 0 on success or a negative error code on failure; call [[SDL_GetError]]() for more information.

SDL_GetTextureAlphaMod

Use this function to get the additional alpha value multiplied into render copy operations.

Syntax

int SDL_GetTextureAlphaMod(SDL_Texture* texture,
                           Uint8*       alpha)

Function Parameters

texture

the texture to query

alpha

a pointer filled in with the current alpha value

Return Value

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

Code Examples

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Remarks

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CategoryAPI, CategoryVideo

None: SDL_GetTextureAlphaMod (last edited 2011-02-15 19:26:32 by SheenaSmith)

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