Writes a pixel to a specified location
Source position: cybergraphics.pas line 320
function WriteRGBPixel( |
a1arg: PRastPort; |
x: Word; |
y: Word; |
argb: LongWord |
):LongInt; |
a1arg |
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Pointer to a RastPort structure |
x |
|
X coordinate of the pixel |
y |
|
Y coordinate of the pixel |
argb |
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The desired color in AARRGGBB format. Every component allocates 8 bits of the longword. |
error = 0 if pixel succesfully changed
= -1 if (x,y) is outside the rastport
Write the alpha,red,green and blue 8-bit color component of the given color to a specified x,y location within a certain RastPort
Attention
This function should only be used on screens depths > 8 bits. Use WritePixel on 8 bit screens!
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Reads a pixel from a specified location |
|
|
Change the pen num of one specific pixel in a specified RastPort. |