Tk_IdToWindow - Find Tk's window information for an X window

       Display *display (in)           X display containing the window.

       Window window (in)              X id for window.
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       Given  an  X  window  identifier  and  the  X  display  it  corresponds  to,  this  procedure returns the
       corresponding Tk_Window handle.  If there is no Tk_Window corresponding to window then NULL is returned.

       X window id

Tk                                                     4.0                                    Tk_IdToWindow(3tk)

       Tk_IdToWindow - Find Tk's window information for an X window

#include<tk.h>

       Tk_Window
       Tk_IdToWindow(display,window)