Mega Code Archive
How can i draw directly on the windows desktop
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Question:
How can I draw directly on the Windows Desktop?
Answer:
The following example uses the dc returned from GetDc(0)
with the Windows API drawing functions to draw on the
Windows Desktop.
Example:
procedure TForm1.Button1Click(Sender: TObject);
var
dc : hdc;
begin
dc := GetDc(0);
MoveToEx(Dc, 0, 0, nil);
LineTo(Dc, 300, 300);
ReleaseDc(0, Dc);
end;
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