jinwoyunni 2018-05-17 06:23 采纳率: 50%
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已结题

linux 进程窗口显示怎么显示水印效果

我实验过得办法:
拦截服务器给xorg发送的执行信息,并修改。
1.自己写一个GTK生成窗口
2.hook writev系统调用,运行GTK可执行文件(当writev发送长度为916时,打印信息)。
3.打印信息如下

 iovstack[0].iov_base+8  =  UTF8_STRING
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+28  =  WM_CLIENT_LEADER^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+52  =  WM_DELETE_WINDOW^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+76  =  WM_LOCALE_NAME
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+100  =  WM_PROTOCOLS^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+120  =  WM_TAKE_FOCUS
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+144  =  WM_WINDOW_ROLE
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+168  =  _NET_ACTIVE_WINDOW
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+196  =  _NET_CURRENT_DESKTOP^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+224  =  _NET_FRAME_EXTENTS
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+252  =  _NET_STARTUP_ID
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+276  =  _NET_WM_CM_S0
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+300  =  _NET_WM_DESKTOP
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+324  =  _NET_WM_ICON^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+344  =  _NET_WM_ICON_NAME
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+372  =  _NET_WM_NAME^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+392  =  _NET_WM_PID
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+412  =  _NET_WM_PING^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+432  =  _NET_WM_STATE
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+456  =  _NET_WM_STATE_ABOVE
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+484  =  _NET_WM_STATE_BELOW
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+512  =  _NET_WM_STATE_FULLSCREEN^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+544  =  _NET_WM_STATE_MODAL
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+572  =  _NET_WM_STATE_MAXIMIZED_VERT
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+608  =  _NET_WM_STATE_MAXIMIZED_HORZ^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+644  =  _NET_WM_STATE_SKIP_TASKBAR
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+680  =  _NET_WM_STATE_SKIP_PAGER^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+712  =  _NET_WM_STATE_STICKY^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+740  =  _NET_WM_SYNC_REQUEST^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+768  =  _NET_WM_SYNC_REQUEST_COUNTER^P
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+804  =  _NET_WM_WINDOW_TYPE
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+832  =  _NET_WM_WINDOW_TYPE_NORMAL
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+868  =  _NET_WM_USER_TIME
May 18 03:04:32 localhost kernel: iovstack[0].iov_base+896  =  _NET_VIRTUAL_ROOTS

网上找了上面的关键词,是请求根窗口的参数,但是没有涉及到图像或者水印。

各位大神有没有好一点的想法!

  • 写回答

3条回答 默认 最新

  • weixin_41559316 2018-05-17 08:14
    关注

    startx
    #即可进入X11的桌面图形操作模式

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