TTimePopupForm.GridsKeyDown procedure
Implements the OnKeyDown event handler for grid controls on the form.
Declaration
procedure GridsKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState)Arguments
Sender | Object for the event notification. |
Key | Virtual key code examined in the method. |
Shift | Key Modifier examined in the method. |
Description
GridsKeyDown ensures that the virtual key in
Key and
Shift is applied, when required. GridsKeyDown calls for form
methods for the following:
- VK_ESC
- Calls the close method to close the Form.
- VK_RETURN, VK_SPACE
- Call ReturnTime to validate/update the time value, and close the Form.
When Key is handled in the method, it is set to zero (0).
Otherwise, it is retained for use in Form or Application key events.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.