CB_SETDROPPEDWIDTH  1GQI0W4 

An application sends the CB_SETDROPPEDWIDTH message to set the maximum allowable width, in pixels, of the list box of a combo box with the CBS_DROPDOWN or CBS_DROPDOWNLIST style.

CB_SETDROPPEDWIDTH

wParam = (WPARAM) wWidth,     // width of list box, in pixels

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

Parameters

wWidth

Specifies the width of the list box, in pixels.

Return Values

If the message is successful, The return value is the new width of the list box.

If the message fails, the return value is CB_ERR.

Remarks

By default, the minimum allowable width of the drop-zdown list box is 0. The width of the list box is either the minimum allowable width or the combo box width, whichever is larger.

See Also