alpha channel data to an image which doesn't have any. If the pointer is not
{\tt NULL}, it must have one byte for each image pixel and be allocated with
{\tt malloc()}. wxImage takes ownership of the pointer and will free it unless
-\arg{static\_data} parameter is set.to \true -- in this case the caller should
+\arg{static\_data} parameter is set to \true -- in this case the caller should
do it.
\func{void}{SetAlpha}{\param{int }{x}, \param{int }{y}, \param{unsigned char }{alpha}}