...check if the mouse has a wheel?

Author: Simon Grossenbacher
Homepage: http://www.swissdelphicenter.ch

Category: Misc

function MouseWheelExists: Boolean;
begin
  
Result := GetSystemMetrics(SM_MOUSEWHEELPRESENT) <> 0;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  if 
MouseWheelExists then
    
ShowMessage('Mouse has wheel.');
end;

 

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