Vcl.ComCtrls.TCustomComboBoxEx.KeyPress

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Delphi

procedure KeyPress(var Key: Char); override;

C++

DYNAMIC void __fastcall KeyPress(System::WideChar &Key);

Properties

Type	Visibility	Source	Unit	Parent
procedure function	public	Vcl.ComCtrls.pas Vcl.ComCtrls.hpp	Vcl.ComCtrls	TCustomComboBoxEx

Description

Responds to keyboard input.

Vcl.ComCtrls.TCustomComboBoxEx.KeyPress inherits from Vcl.Controls.TWinControl.KeyPress. All content below this line refers to Vcl.Controls.TWinControl.KeyPress.

Responds to keyboard input.

When a windowed control receives a key-press message (WM_CHAR) from Windows, its message handler calls the DoKeyPress method. If DoKeyPress determines that the control should, in fact, process the character, it calls KeyPress, passing the key code in the Key parameter.

KeyPress calls any event handler attached to the OnKeyPress event. Override KeyPress to provide other responses in addition to the event handler call.

Either KeyPress or the OnKeyPress event handler it calls can suppress further processing of a character by setting the Key parameter to zero.

Note: The Key parameter is the character represented by the key that is pressed, not a Windows virtual key code.

See Also

• KeyDown

• KeyUp

• OnKeyPress