procedure KeyUp(var Key: Word; var KeyChar: WideChar; Shift: TShiftState);
virtual void __fastcall KeyUp(System::Word &Key, System::WideChar &KeyChar, System::Classes::TShiftState Shift) = 0 ;
Provides a response when a key is released while the control has keyboard focus.
Implement KeyUp to provide a certain behavior when a key is released while the control has keyboard focus.
Key specifies the key on the keyboard.
KeyChar specifies the character code.
Shift indicates which shift keys (SHIFT, CTRL, or ALT) were down when the previously pressed key is released with the control in focus.