include/wx/msw/private/hiddenwin.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msw/private/hiddenwin.h
   3 // Purpose:     Helper for creating a hidden window used by wxMSW internally.
   4 // Author:      Vadim Zeitlin
   5 // Created:     2011-09-16
   6 // RCS-ID:      $Id: wxhead.h,v 1.12 2010-04-22 12:44:51 zeitlin Exp $
   7 // Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_MSW_PRIVATE_HIDDENWIN_H_
  12 #define _WX_MSW_PRIVATE_HIDDENWIN_H_
  13
  14 #include "wx/msw/private.h"
  15
  16 /*
  17   Creates a hidden window with supplied window proc registering the class for
  18   it if necessary (i.e. the first time only). Caller is responsible for
  19   destroying the window and unregistering the class (note that this must be
  20   done because wxWidgets may be used as a DLL and so may be loaded/unloaded
  21   multiple times into/from the same process so we can't rely on automatic
  22   Windows class unregistration).
  23
  24   pclassname is a pointer to a caller stored classname, which must initially be
  25   NULL. classname is the desired wndclass classname. If function successfully
  26   registers the class, pclassname will be set to classname.
  27  */
  28 extern "C" WXDLLIMPEXP_BASE HWND
  29 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc);
  30
  31 #endif // _WX_MSW_PRIVATE_HIDDENWIN_H_