public void WindowCollapseIf(string name, NkCollapseStates c, int cond)
 {
     fixed(char *name_ptr = name)
     {
         Nk.nk_window_collapse_if(_ctx, name_ptr, c, cond);
     }
 }
 public void WindowCollapse(string name, NkCollapseStates c)
 {
     fixed(char *name_ptr = name)
     {
         Nk.nk_window_collapse(_ctx, name_ptr, c);
     }
 }