Tk_ManageGeometry - arrange to handle geometry requests for a window

       Tk_Window tkwin (in)                     Token for window to be managed.

       const Tk_GeomMgr *mgrPtr (in)            Pointer  to  data  structure  containing  information  about the
                                                geometry manager, or NULL  to  indicate  that  tkwin's  geometry
                                                should not be managed anymore.  The data structure pointed to by
                                                mgrPtr must be static: Tk keeps a reference to it as long as the
                                                window is managed.

       void *clientData (in)                    Arbitrary one-word value to pass to geometry manager callbacks.
________________________________________________________________________________________________________________

Tk_ManageGeometry  arranges  for  a  particular  geometry  manager,  described by the mgrPtr argument, to
       control the geometry of a particular content window, given by tkwin.  If tkwin was previously managed  by
       some  other  geometry  manager, the previous manager loses control in favor of the new one.  If mgrPtr is
       NULL, geometry management is cancelled for tkwin.

       The structure pointed to by mgrPtr contains information about the geometry manager:
              typedef struct {
                  const char *name;
                  Tk_GeomRequestProc *requestProc;
                  Tk_GeomLostContentProc *lostContentProc;
              } Tk_GeomMgr;
       The name field is the textual name for the geometry manager, such as pack or place;  this value  will  be
       returned by the command winfomanager.

       requestProc  is  a  procedure in the geometry manager that will be invoked whenever Tk_GeometryRequest is
       called by the content window to change its desired  geometry.   requestProc  should  have  arguments  and
       results that match the type Tk_GeomRequestProc:
              typedef void Tk_GeomRequestProc(
                      void *clientData,
                      Tk_Window tkwin);
       The   parameters   to   requestProc   will  be  identical  to  the  corresponding  parameters  passed  to
       Tk_ManageGeometry.  clientData  usually  points  to  a  data  structure  containing  application-specific
       information about how to manage tkwin's geometry.

       The  lostContentProc field of mgrPtr points to another procedure in the geometry manager.  Tk will invoke
       lostContentProc if some other manager calls Tk_ManageGeometry  to  claim  tkwin  away  from  the  current
       geometry  manager.   lostContentProc  is not invoked if Tk_ManageGeometry is called with a NULL value for
       mgrPtr (presumably the current geometry manager has made this call, so it already knows that  the  window
       is  no  longer managed), nor is it called if mgrPtr is the same as the window's current geometry manager.
       lostContentProc should have arguments and results that match the following prototype:
              typedef void Tk_GeomLostContentProc(
                      void *clientData,
                      Tk_Window tkwin);
       The  parameters  to  lostContentProc  will  be  identical  to  the  corresponding  parameters  passed  to
       Tk_ManageGeometry.

       callback, geometry, managed, request, unmanaged

Tk                                                     4.0                                Tk_ManageGeometry(3tk)

       Tk_ManageGeometry - arrange to handle geometry requests for a window

#include<tk.h>Tk_ManageGeometry(tkwin,mgrPtr,clientData)