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From: bchen@esvax.berkeley.edu (Benjamin Chen)
Newsgroups: comp.windows.x
Subject: Help with XGetWindowAttributes
Message-ID: <31206@ucbvax.BERKELEY.EDU>
Date: 10 Sep 89 02:17:40 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: bchen@esvax.berkeley.edu (Benjamin Chen)
Organization: University of California, Berkeley
Lines: 30


     I'm having a problem with a pretty innocent looking procedure,
XGetWindowAttributes.  I get the following XError:

X Protocol error:  BadMatch, invalid parameter attributes
  Major opcode of failed request:  2 (X_ChangeWindowAttributes)
  Minor opcode of failed request:  0
  Resource id in failed request:  0x90001a
  Serial number of failed request:  77
  Current serial number in output stream:  83
Program exiting with return status = 1.


A couple things puzzle me.  According to O'Reilly's Xlib Reference Manual,
XGetWindowAttributes is not on the the list of functions that generate
X_ChangeWindowAttributes protocol request.  (It should, of course, generate
the corresponding X_GetWindowAttributes request.)  My display pointer
is fine, (as all functions previously worked, and display macros return
the right thing.)  The only possibilty I see is a bad window passed.
The window was created using XCreateSimpleWindow.  It passed a number
of X functions that used this window before sticking on XGetWindowAttributes.

	Any ideas?

		BC

Benjamin Chen
Office:   550-A4 Cory Hall, 2-4332
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