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...trap own hotkeys in my application?
Autor: Thomas Stutz
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Tip Rating (5):  
     


{
  Question:
  How can I trap my own hotkeys in my application?

  Answer:
  First set the form's KeyPreview := True and then attach a OnKeyDown
  handler to check if a certain key combination has been pressed.
}

{
  Frage:
  Wie kann ich eigene Hotkeys in meiner Anwendung abfangen?

  Antwort:
  Setze zuerst KeyPreview der Form auf True und überprüfe dann
  im OnKeyDown der Form, ob eine bestimmte Tastenkombination geedrückt wurde.
}

procedure TForm1.FormKeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if 
(ssCtrl in Shift) and (chr(Key) in ['A', 'a']) then
    
ShowMessage('Ctrl-A pressed!');
end;


// To trap global hotkeys, have a look at tip 147
// Um systemweite Hotkeys abzufangen, schau dir den Tipp 147 an.


 

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