Docs » Autodocs » graphics.library » WritePixel
WritePixel -- Change the pen num of one specific pixel in a
specified RastPort.
error = WritePixel( rp, x, y)
d0 a1 D0 D1
LONG WritePixel( struct RastPort *, SHORT, SHORT );
Changes the pen number of the selected pixel in the specified
RastPort to that currently specified by PenA, the primary
drawing pen. Obeys minterms in RastPort.
rp - a pointer to the RastPort structure
(x,y) - point within the RastPort at which the selected
pixel is located.
error = 0 if pixel succesfully changed
= -1 if (x,y) is outside the RastPort
ReadPixel(), <graphics/rastport.h>
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