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virtual BOOL KeyPressed(UINT nMessage, UINT nChar, UINT nRepCnt = 1, UINT flags = 0);

nMessage

Specifies the message. This can be WM_KEYDOWN, WM_CHAR or WM_SYSKEYDOWN.

nChar

Specifies the virtual-key code of the given key.

nRepCnt

Repeat count (the number of times the keystroke is repeated as a result of the user holding down the key).

flags

Specifies the scan code, key-transition code, previous key state, and context code, as shown in CWnd::OnKeyDown.

TRUE if the key has been processed; FALSE otherwise.

Called when the user has pressed a key and the CGXChild is the currently focused child in the parent control.