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GetRect(Var p1x: double; Var p1y: double; Var p2x: double; Var p2y: double; Hint: String): Integer;
API Call:
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var x1, x2, y1, y2: double; begin if GetRect(x1, y1, x2, y2, 'Click each corner of a rectangle.') = 1 then Showmessage('Draw rectangle here') else Showmessage('Canceled'); end; |