BN_KILLFOCUS notification code

Sent when a button loses the keyboard focus. The button must have the BS_NOTIFY style to send this notification code.

The parent window of the button receives this notification code through the WM_COMMAND message.

BN_KILLFOCUS

    WPARAM wParam;
    LPARAM lParam; 

Parameters

wParam

The LOWORD contains the button's control identifier. The HIWORD specifies the notification code.

lParam

A handle to the button.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	Winuser.h (include Windows.h)

See also

BN_SETFOCUS