Function wxd_DataViewTreeCtrl_GetItemText 

pub unsafe extern "C" fn wxd_DataViewTreeCtrl_GetItemText(
    self_: *const wxd_Window_t,
    item: *const wxd_DataViewItem_t,
    out: *mut c_char,
    out_len: usize,
) -> c_int

Getters and Setters for Item Properties Returns the length of the text (excluding null terminator) for GetItemText. If the item is invalid, returns -1.