Article View: comp.windows.x.pex
Article #169Re: Drawing into DrawingArea widget
From: Rich Thomson
Date: Fri, 06 Nov 1992 22:10
Date: Fri, 06 Nov 1992 22:10
61 lines
2658 bytes
2658 bytes
In article <100874@bu.edu>
kiki@bass.bu.edu (Keith Baccki) writes:
>P.S. It works with XCreateGC, but to be consistent I tried using
> the Xt version - however, I couldn't find it in out Xt ref.
> manual. What's the proper syntax?
The two calls I found in my Xt man pages are XtGetGC and XtReleaseGC.
XtGetGC(3Xt) RISC/os Reference Manual XtGetGC(3Xt)
NAME
XtGetGC, XtReleaseGC - obtain and destroy a sharable GC
SYNTAX
GC XtGetGC(w, value mask, values)
Widget w;
XtGCMask value mask;
XGCValues *values;
void XtReleaseGC(w, gc)
Widget w;
GC gc;
ARGUMENTS
gc Specifies the GC to be deallocated.
values Specifies the actual values for this GC.
value mask
Specifies which fields of the values are speci-
fied.
w Specifies the widget.
DESCRIPTION
The XtGetGC function returns a sharable, read-only GC. The
parameters to this function are the same as those for
XCreateGC except that a widget is passed instead of a
display. XtGetGC shares only GCs in which all values in the
GC returned by XCreateGC are the same. In particular, it
does not use the value mask provided to determine which
fields of the GC a widget considers relevant. The
value mask is used only to tell the server which fields
should be filled in with widget data and which it should
fill in with default values. For further information about
value mask and values, see XCreateGC in the Xlib - C
Language X Interface.
The XtReleaseGC function deallocate the specified shared GC.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
Printed 11/6/92 1 September 1988 Page 1
--
Don't blame me; I voted Libertarian
Disclaimer: I speak for myself, except as noted; Copyright 1992 Rich Thomson
UUCP: ...!uunet!dsd.es.com!rthomson Rich Thomson
Internet: rthomson@dsd.es.com IRC: _Rich_ PEXt Programmer
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Newsgroups: comp.windows.x.pex Path: arc1-ca.pugleaf.net!sparky!uunet!orca!mesa!rthomson From: rthomson@mesa.dsd.es.com (Rich Thomson) Subject: Re: Drawing into DrawingArea widget Message-ID: <1992Nov6.221031.11491@dsd.es.com> Sender: usenet@dsd.es.com Nntp-Posting-Host: 130.187.85.21 Reply-To: rthomson@dsd.es.com (Rich Thomson) Organization: Design Systems Division, Evans & Sutherland, SLC, UT References: <100607@bu.edu> <1992Nov6.011714.21164@colorado.edu> <100874@bu.edu> Date: Fri, 6 Nov 92 22:10:31 GMT Lines: 61