FrameBufferSavePPMAlpha

Syntax
	int FrameBufferSavePPMAlpha(`struct FrameBuffer` ptr,FILE fp);
Header
	base/rfbuffer.h
Library
	rfbuf
Description
	The `FrameBufferSavePPMAlpha` function saves the alpha channel of a frame buffer as a Portable PixMap (PPM) to an open stream. The argument ptr points to the structure containing the frame buffer. The Portable PixMap is written to the open stream pointed to by the argument fp.
Returns
	Returns zero on success. On error, (-1) is returned.
Errors
	On error, (-1) is returned.
Example
	None