text: /////////////////////////////////////////////////////////////////////////////
  // Name:        wx/x11/glcanvas.h
  // Purpose:     wxGLCanvas, for using OpenGL with wxWidgets 2.0 for Motif.
  //              Uses the GLX extension.
  // Author:      Julian Smart and Wolfram Gloger
  // Modified by:
  // Created:     1995, 1999
  // Copyright:   (c) Julian Smart, Wolfram Gloger
  // Licence:     wxWindows licence
  /////////////////////////////////////////////////////////////////////////////
  
  #ifndef _WX_GLCANVAS_H_
  #define _WX_GLCANVAS_H_
  
  #include "wx/unix/glx11.h"
  
  class WXDLLIMPEXP_GL wxGLCanvas : public wxGLCanvasX11
  {
  public:
      wxGLCanvas(wxWindow *parent,
                 const wxGLAttributes& dispAttrs,
                 wxWindowID id = wxID_ANY,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = 0,
                 const wxString& name = wxGLCanvasName,
                 const wxPalette& palette = wxNullPalette);
  
      explicit // avoid implicitly converting a wxWindow* to wxGLCanvas
      wxGLCanvas(wxWindow *parent,
                 wxWindowID id = wxID_ANY,
                 const int *attribList = NULL,
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = 0,
                 const wxString& name = wxGLCanvasName,
                 const wxPalette& palette = wxNullPalette);
  
      bool Create(wxWindow *parent,
                  const wxGLAttributes& dispAttrs,
                  wxWindowID id = wxID_ANY,
                  const wxPoint& pos = wxDefaultPosition,
                  const wxSize& size = wxDefaultSize,
                  long style = 0,
                  const wxString& name = wxGLCanvasName,
                  const wxPalette& palette = wxNullPalette);
  
      bool Create(wxWindow *parent,
                  wxWindowID id = wxID_ANY,
                  const wxPoint& pos = wxDefaultPosition,
                  const wxSize& size = wxDefaultSize,
                  long style = 0,
                  const wxString& name = wxGLCanvasName,
                  const int *attribList = NULL,
                  const wxPalette& palette = wxNullPalette);
  
      // implement wxGLCanvasX11 methods
      // --------------------------------
  
      virtual unsigned long GetXWindow() const;
  
  protected:
      virtual int GetColourIndex(const wxColour& col);
  
      wxDECLARE_CLASS(wxGLCanvas);
  };
  
  #endif // _WX_GLCANVAS_H_
  