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...detect a keypress during a loop?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (6):  
     


procedure TForm1.Button1Click(Sender: TObject);
var
  
LoopAborted: Boolean;
  i: Integer;
begin
  
LoopAborted := False;
  i := 0;
  repeat
    
// Your Code...
    
Caption := IntToStr(i);
    Application.ProcessMessages;

    if GetKeyState(VK_Escape) and 128 = 128 then
    begin
      
LoopAborted := True;
      Break;
    end;

    Inc(i);
  until i = 100000;
  if LoopAborted then
    
ShowMessage('User has aborted the loop!');
end;


 

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