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GetDotColor Returns Color Value of Given Point
GetDotColor(X,Y : Integer) : Integer; [XG/TP]
Returns the color value of the point at (X,Y). Values 0..3 are
returned in 320 x 200 pixel mode (GraphMode), whereas values 0..1 are
returned in 640 x 200 pixel mode (HiRes).
X,Y Screen coordinates (column, row); location of point on
screen in pixels.
Notes: If the point (X,Y) is outside of the window or the
display is not in graphics mode, -1 is returned as the
point color.
The extended graphics external declaration file
GRAPH.P must be included to use this procedure.
The video display must be in graphics mode before
calling this procedure, or else the value returned by
this function will be -1.
-------------------------------- Example ---------------------------------
{$I GRAPH.P }
GraphMode;
I := GetDotColor(52,19); { Get color of point at (52, 19) }
See Also:
Plot
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