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typedef void __fastcall (__closure *TKeyEvent)(System::TObject* Sender, System::Word &Key, System::WideChar &KeyChar, System::Classes::TShiftState Shift);


Type Visibility Source Unit Parent
typedef public FMX.Types.hpp FMX.Types FMX.Types


Procedural type that is used for all OnKeyDown and OnKeyUp event types.

A TKeyEvent event handler must be called with the following parameters:

  • Sender--a pointer to the object that called this function.
  • Key--the key on the keyboard.
  • KeyChar--the character code.
  • Shift-- indicates which shift keys--SHIFT, CTRL, ALT, and CMD (only for Mac)--were down when the specified key was pressed with the control in focus.

See Also