WM_IME_KEYUP

The WM_IME_KEYUP message is sent to an application by the IME to notify the application of a key release. An application can process this message or pass it to the DefWindowProc function to generate a matching WM_KEYUP message. This message is usually generated by the IME to keep message order.

A window receives this message through its WindowProc function.

LRESULT CALLBACK WindowProc(
  HWND hwnd,       // handle to window
  UINT uMsg,       // WM_IME_KEYUP
  WPARAM wParam,   // virtual-key code
  LPARAM lParam    // key data
);

Parameters

wParam

Specifies the virtual-key code of the key.

lParam

Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag, as shown following.

Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag, as shown in the following.

Bit	Meaning
0-15	Repeat count. This value is always 1.
16-23	Scan code.
24	Extended key. This value is 1 if it is an extended key; otherwise, it is zero.
25-28	Not used.
29	Context code. This value is always zero.
30	Previous key state. This value is always 1.
31	Transition state. This value is always 1.

Return Values

An application should return zero if it processes this message.

Requirements

  Windows NT/2000: Requires Windows NT 4.0 or later.
  Windows 95/98: Requires Windows 95 or later.
  Header: Declared in Imm.h.

See Also

Input Method Editor Overview, Input Method Editor Messages, DefWindowProc, WM_KEYUP