请教gdk_event_send_clientmessage_toall

hunbuso

由于要求开机的时候实现所有GUI程序均最小化，查到：

1. 
   
2. void        gdk_event_send_clientmessage_toall
   
3.                                             (GdkEvent *event);
   
4. 
   
5. Sends an X ClientMessage event to all toplevel windows on the default GdkScreen.
   
6. 
   
7. Toplevel windows are determined by checking for the WM_STATE property, as described in the Inter-Client Communication Conventions Manual (ICCCM). If no windows are found with the WM_STATE property set, the message is sent to all children of the root window.
   
8. 
   
9. event :         the GdkEvent to send, which should be a GdkEventClient.
   
10. 
    
11. union GdkEvent
    
12. {
    
13.   GdkEventType                    type;
    
14.   GdkEventAny                    any;
    
15.   GdkEventExpose            expose;
    
16.   GdkEventNoExpose            no_expose;
    
17.   GdkEventVisibility            visibility;
    
18.   GdkEventMotion            motion;
    
19.   GdkEventButton            button;
    
20.   GdkEventScroll            scroll;
    
21.   GdkEventKey                    key;
    
22.   GdkEventCrossing            crossing;
    
23.   GdkEventFocus                    focus_change;
    
24.   GdkEventConfigure            configure;
    
25.   GdkEventProperty            property;
    
26.   GdkEventSelection            selection;
    
27.   GdkEventOwnerChange              owner_change;
    
28.   GdkEventProximity            proximity;
    
29.   GdkEventClient            client;
    
30.   GdkEventDND               dnd;
    
31.   GdkEventWindowState       window_state;
    
32.   GdkEventSetting           setting;
    
33.   GdkEventGrabBroken        grab_broken;
    
34. };
    
35. 
    
36. typedef struct {
    
37.   GdkEventType type;
    
38.   GdkWindow *window;
    
39.   gint8 send_event;
    
40.   GdkWindowState changed_mask;
    
41.   GdkWindowState new_window_state;
    
42. } GdkEventWindowState;
    

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但是GdkWindowState只有

1. 
   
2. typedef enum
   
3. {
   
4.   GDK_WINDOW_STATE_WITHDRAWN  = 1 << 0,
   
5.   GDK_WINDOW_STATE_ICONIFIED  = 1 << 1,
   
6.   GDK_WINDOW_STATE_MAXIMIZED  = 1 << 2,
   
7.   GDK_WINDOW_STATE_STICKY     = 1 << 3,
   
8.   GDK_WINDOW_STATE_FULLSCREEN = 1 << 4,
   
9.   GDK_WINDOW_STATE_ABOVE      = 1 << 5,
   
10.   GDK_WINDOW_STATE_BELOW      = 1 << 6
    
11. } GdkWindowState;
    

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没有MINIMIZE，不知道用这个函数能否实现最小化所有GUI应用程序？开机最小化所有GUI程序有没有更好的方法？谢谢