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iluInvertAlpha inverts the alpha of the currently bound image.
| ILboolean iluInvertAlpha( ILvoid );
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Parameters
Errors | - ILU_ILLEGAL_OPERATION
- The operation attempted is not allowable in the current state. The function returns with no ill side effects. Generally there is currently no image bound or it has been deleted via ilDeleteImages. You should use ilGenImages and ilBindImage before calling the function.
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See Also
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