BM_CLICK message

Simulates the user clicking a button. This message causes the button to receive the WM_LBUTTONDOWN and WM_LBUTTONUP messages, and the button's parent window to receive a BN_CLICKED notification code.

Parameters

wParam

Not used; must be zero.

lParam

Not used; must be zero.

Return value

This message does not return a value.

Remarks

If the button is in a dialog box and the dialog box is not active, the BM_CLICK message might fail. To ensure success in this situation, call the SetActiveWindow function to activate the dialog box before sending the BM_CLICK message to the button.

Requirements