macintosh_cookbook/examples/picker.pas

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2020-05-07 09:47:11 +00:00
program ExamplePicker;
var
Pt: Point;
procedure PaintPatterns;
var
selection: Rect;
begin
SetRect(selection, 10 + (50 * 0), 10, 10 + (50 * 1), 50);
FillRect(selection, black);
FrameRect(selection);
SetRect(selection, 10 + (50 * 1), 10, 10 + (50 * 2), 50);
FillRect(selection, dkgray);
FrameRect(selection);
SetRect(selection, 10 + (50 * 2), 10, 10 + (50 * 3), 50);
FillRect(selection, gray);
FrameRect(selection);
SetRect(selection, 10 + (50 * 3), 10, 10 + (50 * 4), 50);
FillRect(selection, ltgray);
FrameRect(selection);
SetRect(selection, 10 + (50 * 4), 10, 10 + (50 * 5), 50);
FillRect(selection, white);
FrameRect(selection);
end;
procedure MainLoop;
begin
repeat {Until we double-click}
GetMouse(Pt);
while button do
begin
Writeln('pixel:', Pt.h : 4, ',', Pt.v : 4, '=', GetPixel(pt.h, pt.v));
repeat {Tight loop until button up}
until not Button;
end;
until 1 > 1; { forever}
end;
begin
ShowText;
ShowDrawing;
PaintPatterns;
MainLoop;
end.