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winTopLevelWindowProc - BitBlt failed: The handle is invalid.


While working in xterm windows, just about every day, at some point my
XWin.log starts filling up with thousands of lines:
...
winTopLevelWindowProc - BitBlt failed: The handle is invalid.
...
No windows crash.

A search shows that this same problem has been raised several times,
including by me last month.  but there has not been any satisfactory
response.  Perhaps this problem is now recognized and can be properly
addressed?

I attach the output of
cygcheck -s -v -r > cygcheck.out

There does not seem to be any warning that this is about to happen.
My XWin.log shows:
    ------------8<------------ top cut -> bottom ------------->8------------
_XSERVTransmkdir: ERROR: euid != 0,directory /tmp/.X11-unix will not be created.
(II) XF86Config is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
winPrefsLoadPreferences: /home/ingber/.XWinrc
winAdjustVideoModeShadowGDI - Using Windows display depth of 32 bits per pixel
winAllocateFBShadowGDI - Creating DIB with width: 1600 height: 1200 depth: 32
winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 32
null screen fn ReparentWindow
null screen fn RestackWindow
InitQueue - Calling pthread_mutex_init
InitQueue - pthread_mutex_init returned
InitQueue - Calling pthread_cond_init
InitQueue - pthread_cond_init returned
winInitMultiWindowWM - Hello
winInitMultiWindowWM - Calling pthread_mutex_lock ()
winMultiWindowXMsgProc - Hello
winMultiWindowXMsgProc - Calling pthread_mutex_lock ()
(--) Setting autorepeat to delay=500, rate=31
(--) winConfigKeyboard - Layout: "00000409" (00000409)
(--) Using preset keyboard for "English (USA)" (409), type "4"
(--) 3 mouse buttons found
Could not init font path element /usr/X11R6/lib/X11/fonts/CID/, removing from list!
winInitMultiWindowWM - pthread_mutex_lock () returned.
winProcEstablishConnection - Hello
winInitClipboard ()
winClipboardProc - Hello
DetectUnicodeSupport - Windows NT/2000/XP
winProcEstablishConnection - winInitClipboard returned.
winInitMultiWindowWM - pthread_mutex_unlock () returned.
winClipboardProc - DISPLAY=127.0.0.1:0.0
winMultiWindowXMsgProc - pthread_mutex_lock () returned.
winInitMultiWindowWM - DISPLAY=127.0.0.1:0.0
winMultiWindowXMsgProc - pthread_mutex_unlock () returned.
winMultiWindowXMsgProc - DISPLAY=127.0.0.1:0.0
winMultiWindowXMsgProc - XOpenDisplay () returned and successfully opened the display.
winClipboardProc - XOpenDisplay () returned and successfully opened the display.winInitMultiWindowWM - XOpenDisplay () returned and successfully opened the display.
winTopLevelWindowProc - BitBlt failed: The handle is invalid.
...
    ------------8<------------ bottom cut <- top ------------->8------------
My ~/.XWinrc file has all lines commented out.  It is simply a copy of
# XWin Server Resource File - EXAMPLE
# Earle F. Philhower, III

I have CYGWIN set in my windows Environment, under System variables,
with Value set to server.

Thanks.

Lester

-- 
 Prof. Lester Ingber  lester@ingber.com  ingber@alumni.caltech.edu
 http://www.ingber.com           http://alumni.caltech.edu/~ingber

Attachment: cygcheck.out
Description: Text document

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