IActiveIMMApp::OnDefWindowProc Method

---

Replaces the DefWindowProc function.

Syntax

HRESULT OnDefWindowProc(
    HWND hWnd,
    UINT Msg,
    WPARAM wParam,
    LPARAM lParam,
    LRESULT *plResult
);

Parameters

hWnd

[in] Handle to the window procedure that received the message.

Msg

[in] Unsigned integer that specifies the message.

wParam

[in] WPARAM value that specifies additional message information.

lParam

[in] LPARAM value that specifies additional message information.

plResult

[out] Address of an LRESULT value that receives the result of the operation.

Return Value

Returns S_OK if successful, or an error code otherwise.

Remarks

This method must be called before you would normally call DefWindowProc. If IActiveIMMApp::OnDefWindowProc returns S_FAIL, DefWindowProc should be called.