Mega Code Archive
Detect a mouse click on the caption of a form
<![CDATA[
private
procedure WMNCRBUTTONDOWN(var msg: TMessage); message WM_NCRBUTTONDOWN;
procedure WMNCLBUTTONDOWN(var msg: TMessage); message WM_NCLBUTTONDOWN;
procedure WMNCLBUTTONDBLCLK(var msg: TMessage); message WM_NCLBUTTONDBLCLK;
end;
implementation
procedure TForm1.WMNCRBUTTONDOWN(var msg: TMessage);
begin
if msg.wParam = HTCAPTION then Caption := 'Right Click!';
// Message.Result := 0; {to ignore the message}
inherited;
end;
procedure TForm1.WMNCLBUTTONDOWN(var msg: TMessage);
begin
if msg.wParam = HTCAPTION then Caption := 'Left Click!';
// Message.Result := 0; {to ignore the message}
inherited;
end;
procedure TForm1.WMNCLBUTTONDBLCLK(var msg: TMessage);
begin
if msg.wParam = HTCAPTION then Caption := 'Double Click!';
// Message.Result := 0; {to ignore the message}
inherited;
end;
]]>