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CB_GETITEMHEIGHT Overview  Group

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

CB_GETITEMHEIGHT 

wParam = (WPARAM) index;  // item index 

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

 

Parameters

index
Value of wParam. Specifies the combo box component whose height is to be retrieved.

This parameter must be -1 to retrieve the height of the selection field. It must be zero to retrieve 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.

Return Values

The return value is the height, in pixels, of the list items in a combo box. If the combo box has the CBS_OWNERDRAWVARIABLE style, it is is the height of the item specified by the index parameter. If index is -1, the return value is the height of the edit control (or static-text) portion of the combo box. If an error occurs, the return value is CB_ERR.

See Also

CB_SETITEMHEIGHT, WM_MEASUREITEM

See also:


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