MirOS Manual: XDeleteContext(3), XFindContext(3), XSaveContext(3), XUniqueContext(3)


XSaveContext(3X11)       XLIB FUNCTIONS        XSaveContext(3X11)

NAME

     XSaveContext, XFindContext, XDeleteContext, XUniqueContext -
     associative look-up routines

SYNTAX

     int XSaveContext(Display *display, XID rid, XContext con-
          text, XPointer data);

     int XFindContext(Display *display, XID rid, XContext con-
          text, XPointer *data_return);

     int XDeleteContext(Display *display, XID rid, XContext con-
          text);

     XContext XUniqueContext(void);

ARGUMENTS

     context   Specifies the context type to which the data
               belongs.

     data      Specifies the data to be associated with the win-
               dow 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 con-
     text. 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
     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.

XFree86                   Version 4.5.0                         1

XSaveContext(3X11)       XLIB FUNCTIONS        XSaveContext(3X11)

SEE ALSO

     Xlib - C Language X Interface

XFree86                   Version 4.5.0                         2

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