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Rendering/vtkWin32OpenGLRenderWindow.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkWin32OpenGLRenderWindow.h,v $
  Language:  C++

  Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef __vtkWin32OpenGLRenderWindow_h
#define __vtkWin32OpenGLRenderWindow_h

#include "vtkOpenGLRenderWindow.h"

#ifndef VTK_IMPLEMENT_MESA_CXX
#include <GL/gl.h> // Needed for mesa internals
#endif

class vtkIdList;

class VTK_RENDERING_EXPORT vtkWin32OpenGLRenderWindow : public vtkOpenGLRenderWindow
{
public:
  static vtkWin32OpenGLRenderWindow *New();
  vtkTypeRevisionMacro(vtkWin32OpenGLRenderWindow,vtkOpenGLRenderWindow);
  void PrintSelf(ostream& os, vtkIndent indent);

  virtual void Start(void);

  void Frame(void);

  virtual void WindowInitialize(void);

  virtual void Initialize(void);

  virtual void SetFullScreen(int);

  virtual void WindowRemap(void);

  virtual void PrefFullScreen(void);


  virtual void SetSize(int,int);
  virtual void SetSize(int a[2]) {vtkOpenGLRenderWindow::SetSize(a);};
  
  virtual int *GetSize();


  virtual void SetPosition(int,int);
  virtual void SetPosition(int a[2]) {vtkOpenGLRenderWindow::SetPosition(a);};
  
  virtual int *GetScreenSize();

  virtual int *GetPosition();

  virtual void SetWindowName(const char *);
  
  void SetWindowInfo(char *);

  void SetParentInfo(char *);

  //BTX
  virtual void *GetGenericDisplayId() {return (void *)this->ContextId;};
  virtual void *GetGenericWindowId()  {return (void *)this->WindowId;};
  virtual void *GetGenericParentId()  {return (void *)this->ParentId;};
  virtual void *GetGenericContext()   {return (void *)this->DeviceContext;};
  virtual void *GetGenericDrawable()  {return (void *)this->WindowId;};
  virtual void SetDisplayId(void *);


  virtual HWND  GetWindowId();
  void  SetWindowId(void *foo) {this->SetWindowId((HWND)foo);};

  virtual void  SetWindowId(HWND);
  

  virtual void  SetParentId(HWND);
  void  SetParentId(void *foo) {this->SetParentId((HWND)foo);};

  void  SetContextId(HGLRC);    // hsr
  void  SetDeviceContext(HDC);  // hsr


  virtual void  SetNextWindowId(HWND);
  //ETX

  virtual void SetStereoCapableWindow(int capable);

  void MakeCurrent();

  const char *ReportCapabilities();

  int SupportsOpenGL();

  int IsDirect();

  virtual  int GetEventPending();


  void SetupMemoryRendering(int x, int y, HDC prn);
  void SetupMemoryRendering(HBITMAP hbmp);
  void ResumeScreenRendering(void);
  HDC GetMemoryDC();
  unsigned char *GetMemoryData(){return this->MemoryData;};  


  virtual void SetupPalette(HDC hDC);
  virtual void SetupPixelFormat(HDC hDC, DWORD dwFlags, int debug, 
                                int bpp=16, int zbpp=16);
  
  void Clean();


  void HideCursor();
  void ShowCursor();
  void SetCursorPosition(int x, int y);

  virtual void SetCurrentCursor(int);

  virtual void SetOffScreenRendering(int offscreen);

protected:
  vtkWin32OpenGLRenderWindow();
  ~vtkWin32OpenGLRenderWindow();

  HINSTANCE ApplicationInstance;
  HPALETTE  Palette;
  HPALETTE  OldPalette;
  HGLRC     ContextId;
  HDC       DeviceContext;
  BOOL      MFChandledWindow;
  HWND      WindowId;
  HWND      ParentId;
  HWND      NextWindowId;
  int       OwnWindow;
  int       ScreenSize[2];

  // the following is used to support rendering into memory
  BITMAPINFO MemoryDataHeader;
  HBITMAP MemoryBuffer;
  unsigned char *MemoryData;    // the data in the DIBSection
  HDC MemoryHdc;

  int ScreenMapped;
  int ScreenWindowSize[2];
  HDC ScreenDeviceContext;
  int ScreenDoubleBuffer;
  HGLRC ScreenContextId;

  //BTX
  // message handler
  virtual LRESULT MessageProc(HWND hWnd, UINT message, 
                              WPARAM wParam, LPARAM lParam);

  static LRESULT APIENTRY WndProc(HWND hWnd, UINT message, 
                                  WPARAM wParam, LPARAM lParam);
  //ETX
  int CursorHidden;
  int ForceMakeCurrent;

  char   *Capabilities;

  void ResizeWhileOffscreen(int xsize, int ysize);
  void CreateAWindow(int x, int y, int width, int height);
  void InitializeApplication();
  void CleanUpOffScreenRendering(void);
  void CreateOffScreenDC(int xsize, int ysize, HDC aHdc);
  void CreateOffScreenDC(HBITMAP hbmp, HDC aHdc);
private:
  vtkWin32OpenGLRenderWindow(const vtkWin32OpenGLRenderWindow&);  // Not implemented.
  void operator=(const vtkWin32OpenGLRenderWindow&);  // Not implemented.
};


#endif

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