ITfKeyEventSink::OnTestKeyDown method (msctf.h)
Called to determine if a text service will handle a key down event.
Syntax
HRESULT OnTestKeyDown(
[in] ITfContext *pic,
[in] WPARAM wParam,
[in] LPARAM lParam,
[out] BOOL *pfEaten
);
Parameters
[in] pic
Pointer to the input context that receives the key event.
[in] wParam
Specifies the virtual-key code of the key. For more information about this parameter, see the wParam parameter in WM_KEYDOWN.
[in] lParam
Specifies the repeat count, scan code, extended-key flag, context code, previous key-state flag, and transition-state flag of the key. For more information about this parameter, see the lParam parameter in WM_KEYDOWN.
[out] pfEaten
Pointer to a BOOL that, on exit, indicates if the key event would be handled. If this value receives TRUE, the key event would be handled. If this value is FALSE, the key event would not be handled.
Return value
This method can return one of these values.
| Value | Description |
|---|---|
|
The method was successful. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps | UWP apps] |
| Minimum supported server | Windows 2000 Server [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | msctf.h |
| DLL | Msctf.dll |
| Redistributable | TSF 1.0 on Windows 2000 Professional |