NAME

       Tk_FreeXId - make X resource identifier available for reuse

SYNOPSIS

       #include <tk.h>

       Tk_FreeXId(display, id)

ARGUMENTS

       Display *display (in)          Display for which id was allocated.

       XID id (in)                    Identifier  of X resource (window, font, pixmap, cursor, graphics context,
                                      or colormap) that is no longer in use.
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DESCRIPTION

       The default allocator for resource identifiers provided by Xlib is very simple-minded and does not  allow
       resource  identifiers  to  be  re-used.  If a long-running application reaches the end of the resource id
       space, it will generate an X protocol error and crash.  Tk replaces the default id allocator with its own
       allocator, which allows identifiers to be reused.  In order for this to work, Tk_FreeXId must  be  called
       to  tell  the allocator about resources that have been freed.  Tk automatically calls Tk_FreeXId whenever
       it frees a resource, so if you use procedures like Tk_GetFont, Tk_GetGC, and Tk_GetPixmap then  you  need
       not  call  Tk_FreeXId.   However,  if  you  allocate resources directly from Xlib, for example by calling
       XCreatePixmap, then you should call Tk_FreeXId when you call the corresponding Xlib free procedure,  such
       as  XFreePixmap.   If  you  do not call Tk_FreeXId then the resource identifier will be lost, which could
       cause problems if the application runs long enough to lose all of the available identifiers.

KEYWORDS

       resource identifier

Tk                                                     4.0                                       Tk_FreeXId(3tk)