The GetMenuItemRect function retrieves the bounding rectangle for the specified menu item.
BOOL GetMenuItemRect(
| HWND hWnd, | |
| HMENU hMenu, | |
| UINT uItem, | |
| LPRECT lprcItem | |
| ); | 
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, use the GetLastError function.