WM_CLEAR Overview  Group

An application sends a WM_CLEAR message to an edit control or combo box to delete (clear) the current selection, if any, from the edit control.

WM_CLEAR 

wParam = 0; // not used; must be zero 

lParam = 0; // not used; must be zero 

 

Parameters

This message has no parameters.

Return Values

This message does not return a value.

Remarks

The deletion performed by the WM_CLEAR message can be undone by sending the edit control an EM_UNDO message.

To delete the current selection and place the deleted content on the clipboard, use the WM_CUT message.

When sent to a combo box, the WM_CLEAR message is handled by its edit control. This message has no effect when sent to a combo box with the CBS_DROPDOWNLIST style.

See Also

EM_UNDO, WM_COPY, WM_CUT, WM_PASTE 

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