XStoreName(display, w, window_name)
      Display *display;
      Window w;
      char *window_name;
| display | Specifies the connection to the X server. | 
| w | Specifies the window. | 
| window_name | Specifies the window name, which should be a null-terminated string. | 
XStoreName() can generate BadAlloc and BadWindow errors.
| BadAlloc | The server failed to allocate the requested source or server memory. | 
| BadWindow | A value for a Window argument does not name a defined Window. |