182 lines
3.6 KiB
Plaintext
182 lines
3.6 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.TH XSaveContext 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XSaveContext, XFindContext, XDeleteContext, XUniqueContext \- associative look-up routines
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.SH SYNTAX
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int XSaveContext(\^\fIdisplay\fP, \fIrid\fP, \fIcontext\fP, \fIdata\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XID \fIrid\fP\^;
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.br
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XContext \fIcontext\fP\^;
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.br
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XPointer \fIdata\fP\^;
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.LP
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int XFindContext(\^\fIdisplay\fP, \fIrid\fP, \fIcontext\fP, \fIdata_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XID \fIrid\fP\^;
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.br
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XContext \fIcontext\fP\^;
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.br
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XPointer *\fIdata_return\fP\^;
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.LP
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int XDeleteContext(\^\fIdisplay\fP, \fIrid\fP, \fIcontext\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XID \fIrid\fP;
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.br
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XContext \fIcontext\fP;
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.LP
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XContext XUniqueContext(\^)
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.SH ARGUMENTS
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.IP \fIcontext\fP 1i
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Specifies the context type to which the data belongs.
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.IP \fIdata\fP 1i
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Specifies the data to be associated with the window and type.
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.IP \fIdata_return\fP 1i
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Returns the data.
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIrid\fP 1i
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Specifies the resource ID with which the data is associated.
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.SH DESCRIPTION
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.\" $Header: XSContext.d,v 1.2 88/06/11 07:52:54 mento Exp $
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If an entry with the specified resource ID and type already exists,
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.ZN XSaveContext
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overrides it with the specified context.
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The
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.ZN XSaveContext
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function returns a nonzero error code if an error has occurred
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and zero otherwise.
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Possible errors are
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.ZN XCNOMEM
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(out of memory).
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.LP
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.\" $Header: XFContext.d,v 1.2 88/06/11 07:50:11 mento Exp $
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Because it is a return value,
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the data is a pointer.
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The
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.ZN XFindContext
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function returns a nonzero error code if an error has occurred
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and zero otherwise.
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Possible errors are
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.ZN XCNOENT
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(context-not-found).
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.LP
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.\" $Header: XDContext.d,v 1.3 88/08/20 10:50:15 mento Exp $
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The
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.ZN XDeleteContext
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function deletes the entry for the given resource ID
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and type from the data structure.
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This function returns the same error codes that
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.ZN XFindContext
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returns if called with the same arguments.
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.ZN XDeleteContext
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does not free the data whose address was saved.
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.LP
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.\" $Header: XUContext.d,v 1.1 88/02/26 10:51:25 mento Exp $
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The
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.ZN XUniqueContext
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function creates a unique context type that may be used in subsequent calls to
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.ZN XSaveContext .
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.SH "SEE ALSO"
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\fI\*(xL\fP
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