CB_SETITEMHEIGHT Overview  Group

An application sends a CB_SETITEMHEIGHT message to set the height of list items or the selection field in a combo box.

CB_SETITEMHEIGHT 

wParam = (WPARAM) index;        // item index 

lParam = (LPARAM) (int) height; // item height 

 

Parameters

index

Value of wParam. Specifies the component of the combo box for which to set the height.

This parameter must be -1 to set the height of the selection field. It must be zero to set the height of list items, unless the combo box has the CBS_OWNERDRAWVARIABLE style. In that case, the index parameter is the zero-based index of a specific list item.

height

Value of lParam. Specifies the height, in pixels, of the combo box component identified by index.

Return Values

If the index or height is invalid, the return value is CB_ERR.

Remarks

The selection field height in a combo box is set independently of the height of the list items. An application must ensure that the height of the selection field is not smaller than the height of a particular list item.

See Also

CB_GETITEMHEIGHT, WM_MEASUREITEM