XSaveContext(3X11) X Version 11 (Release 5) XSaveContext(3X11)
NAME
XSaveContext, XFindContext, XDeleteContext, XUniqueContext -
associative look-up routines
SYNTAX
int XSaveContext(display, rid, context, data)
Display *display;
XID rid;
XContext context;
XPointer data;
int XFindContext(display, rid, context, data_return)
Display *display;
XID rid;
XContext context;
XPointer *data_return;
int XDeleteContext(display, rid, context)
Display *display;
XID rid;
XContext context;
XContext XUniqueContext()
ARGUMENTS
context Specifies the context type to which the data
belongs.
data Specifies the data to be associated with the
window and type.
data_return
Returns the data.
display Specifies the connection to the X server.
rid Specifies the resource ID with which the data is
associated.
DESCRIPTION
If an entry with the specified resource ID and type already
exists, XSaveContext overrides it with the specified
context. The XSaveContext function returns a nonzero error
code if an error has occurred and zero otherwise. Possible
errors are XCNOMEM (out of memory).
Because it is a return value, the data is a pointer. The
XFindContext function returns a nonzero error code if an
error has occurred and zero otherwise. Possible errors are
XCNOENT (context-not-found).
The XDeleteContext function deletes the entry for the given
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XSaveContext(3X11) X Version 11 (Release 5) XSaveContext(3X11)
resource ID and type from the data structure. This function
returns the same error codes that XFindContext returns if
called with the same arguments. XDeleteContext does not
free the data whose address was saved.
The XUniqueContext function creates a unique context type
that may be used in subsequent calls to XSaveContext.
SEE ALSO
Xlib - C Language X Interface
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