[Overview][Constants][Types][Classes][Procedures and functions][Index] Reference for unit 'StdCtrls' (#lcl)

TCustomComboBox.KeyDown

Filters keys used to traverse the list.

Declaration

Source position: stdctrls.pp line 387

protected procedure TCustomComboBox.KeyDown(

  var Key: Word;

  Shift: TShiftState

); override;

Arguments

Key

  

The pressed key.

Shift

  

The state of the modifier keys and mouse buttons.

Description

KeyDown is an overridden method in TCustomComboBox. KeyDown ensures that keys like Escape, Tab, and Return are handled in the manner needed for the Style in the control. If the values in Key and Shift are not specifically handled in the method, the inherited KeyDown method is called.

See also

TCustomComboBox.Style

  

Appearance and behavior of the combo-box.

TCustomComboBox.AutoDropDown

  

Makes the drop-down list appear as soon as the user starts entering text.

TCustomComboBox.ArrowKeysTraverseList

  

Indicates if keyboard Arrow (or cursor) keys to move through the list.

TWinControl.KeyDown

  

Invokes the OnKeyDown handler.

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