The function sends a WM_CHANGE_STATE event with a format of 32 and a first data element of (as described in section 4.1.4 of the
Inter-Client Communication Conventions Manual) and a window of w to the root window of the specified screen with an event mask set to Window managers may elect to receive this message and if the window is in its normal state, may treat it as a request to change the window's state from normal to iconic. If the WM_CHANGE_STATE property cannot be interned, does not send a message and returns a zero status. It returns a nonzero status if the client message is sent successfully; otherwise, it returns a zero status.The function unmaps the specified window and sends a synthetic event to the root window of the specified screen. Window managers may elect to receive this message and may treat it as a request to change the window's state to withdrawn. When a window is in the withdrawn state, neither its normal nor its iconic representations is visible. It returns a nonzero status if the event is successfully sent; otherwise, it returns a zero status.
can generate a error.
The function issues a request on the specified top-level window. If the stacking mode is changed and the request fails with a error, the error is trapped by Xlib and a synthetic containing the same configuration parameters is sent to the root of the specified window. Window managers may elect to receive this event and treat it as a request to reconfigure the indicated window. It returns a nonzero status if the request or event is successfully sent; otherwise, it returns a zero status.
can generate and errors.