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Text File  |  1992-12-14  |  671 b   |  19 lines
  1. Newsgroups: comp.windows.open-look
  2. Path: sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!jvnc.net!news.edu.tw!sparc4.ncu.edu.tw!imux120!u438813
  3. From: u438813@imux120.ncu.edu.tw (Lin Wei-Ting)
  4. Subject: Cannot change a canvas background.
  5. Message-ID: <1992Dec14.113635.22296@sparc4.ncu.edu.tw>
  6. Sender: news@sparc4.ncu.edu.tw
  7. Reply-To: u438813@imux120.ncu.edu.tw
  8. Organization: Sun Microsystems, Inc.
  9. Date: Mon, 14 Dec 1992 11:36:35 GMT
  10. Lines: 7
  11.  
  12. dpy=(Display *)xv_get(canvas_paint_window(obj),XV_DISPLAY);
  13. gc=DefaultGC(dpy,DefaultScreen(dpy));
  14. XSetBackground(dpy,gc,pixvalue=(unsigned long)XGetPixel(ximage,k,j));
  15.  
  16. It cannot work,why?
  17.  
  18. Thanks.
  19.