LBitmapWindow::CreatePanWnd

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName 
class LUserBWndCreatePanWnd : public LBitmapWindow 
{ 
public: 
   LUserBWndCreatePanWnd() ; 
   virtual ~LUserBWndCreatePanWnd() ; 
   virtual L_VOID PanWndCallBack(L_UINT uFlag,LPRECT rcPan); 
   virtual LRESULT MsgProcCallBack(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam); 
   virtual L_BOOL OnFileDropped(L_TCHAR * pszFile,L_UINT uFileNumber,L_UINT uFilesCount); 
   virtual L_VOID  OnDraw(HDC hdc,RECT& Rect); 
   virtual L_VOID  OnZoom(L_UINT uZoomPercent); 
   virtual L_VOID  PaintNotification(L_INT nPass, L_INT uType); 
}; 
LUserBWndCreatePanWnd::LUserBWndCreatePanWnd() 
{ 
} 
LUserBWndCreatePanWnd::~LUserBWndCreatePanWnd() 
{ 
} 
L_VOID LUserBWndCreatePanWnd::PanWndCallBack(L_UINT uFlag,LPRECT rcPan) 
{ 
   UNREFERENCED_PARAMETER(rcPan); 
   // user can set his code for each message 
   switch (uFlag) 
   { 
      case PANWIN_CREATED: 
      // user code 
      return; 
      case PANWIN_UPDATED: 
      // user code 
      return; 
      case PANWIN_DESTROYED: 
      // user code 
      return; 
      case PANWIN_MOVED: 
      // user code 
      return; 
   } 
} 
LRESULT LUserBWndCreatePanWnd::MsgProcCallBack(HWND hWnd,UINT uMsg,WPARAM wParam,LPARAM lParam) 
{ 
   switch (uMsg) 
   { 
      case WM_CLOSE: 
      break ; 
   }; 
   return LBitmapWindow::MsgProcCallBack(hWnd,uMsg,wParam,lParam); 
} 
L_BOOL LUserBWndCreatePanWnd::OnFileDropped(L_TCHAR * pszFile, L_UINT uFileNumber, L_UINT uFilesCount) 
{ 
   UNREFERENCED_PARAMETER(uFilesCount); 
   UNREFERENCED_PARAMETER(uFileNumber); 
   SetFileName(pszFile); 
   if (Load() == SUCCESS) 
      return FALSE;  //if loading the file succeeded then stop enumerating files 
   return TRUE; 
} 
L_VOID LUserBWndCreatePanWnd::OnDraw(HDC hdc,RECT& Rect) 
{ 
   UNREFERENCED_PARAMETER(Rect); 
   Rectangle( hdc,10,10, 50,50); 
} 
L_VOID LUserBWndCreatePanWnd::OnZoom(L_UINT uZoomPercent) 
{ 
   L_TCHAR szBuffer[50]; 
   wsprintf(szBuffer,TEXT("Zoom Percent = %u\n"),uZoomPercent) ; 
   ::MessageBox( m_hWnd, szBuffer, TEXT("Zoom Percent"), MB_OK) ; 
} 
L_VOID LUserBWndCreatePanWnd::PaintNotification(L_INT nPass, L_INT nType) 
{ 
   L_TCHAR szBuffer[50]; 
   wsprintf(szBuffer,TEXT("Pass Number = %d\nType Effect No. = %d\n"), nPass, nType) ; 
   ::MessageBox( m_hWnd, szBuffer, TEXT("Effect Information"), MB_OK) ; 
} 
L_INT LBitmapWindow__CreatePanWndExample(HWND hWndParent) 
{ 
   L_INT nRet; 
   LUserBWndCreatePanWnd UserBitmapWindow; 
   HWND hWnd ; 
   UserBitmapWindow.SetFileName(MAKE_IMAGE_PATH(TEXT("image1.cmp"))); 
   nRet = UserBitmapWindow.Load(0, ORDER_BGR) ; 
   if (nRet== SUCCESS) 
   { 
      hWnd = UserBitmapWindow.CreateWnd( hWndParent) ; 
      if (hWnd == NULL) 
         return 0 ; 
      UserBitmapWindow.HandlePalette(WM_QUERYNEWPALETTE,0,0); 
      UserBitmapWindow.Repaint(); 
      L_UINT32 ulDisplayFlags = UserBitmapWindow.GetDisplayMode() ; 
      UserBitmapWindow.CreatePanWnd(ulDisplayFlags, 0, 0, 150, 150, 
      TEXT("PAN_WIN"), NULL, NULL, TRUE) ; 
      hWnd = UserBitmapWindow.GetPanWnd() ; 
      if (hWnd != NULL) 
      { 
         nRet =UserBitmapWindow.UpdatePanWnd( ulDisplayFlags, RGB(255,0,0),TEXT("Pan Window ")) ; 
         if(nRet !=SUCCESS) 
            return nRet; 
      } 
      else 
         return FAILURE; 
      //... do any operation on window 
      nRet =UserBitmapWindow.Flip(); 
      if(nRet !=SUCCESS) 
         return nRet; 
      if (UserBitmapWindow.IsPanWndCreated() == TRUE) 
         UserBitmapWindow.UpdatePanWnd( ulDisplayFlags, RGB(255,255,255),TEXT("Pan Window ")) ; 
      MessageBox(hWndParent, TEXT("Pan Window was created successfully.\n press OK to destroy it"), TEXT("BitmapWindowSamples"), MB_OK); 
      hWnd = UserBitmapWindow.GetPanWnd() ; 
      if (hWnd != NULL) 
      { 
         // after you finish, destroy PanWindow 
         nRet =UserBitmapWindow.DestroyPanWnd() ; 
         if(nRet !=SUCCESS) 
            return nRet; 
      } 
      else 
         return FAILURE; 
      hWnd = UserBitmapWindow.GetBitmapWnd() ; 
      if (hWnd != NULL) 
      { 
         L_FLOAT  fZoomFactor ; 
         L_UINT   uPercent ; 
         UserBitmapWindow.ZoomIn() ; 
         // set zoom factor with initialize value 
         UserBitmapWindow.SetZoomFactor() ; 
         // set zoom percent 
         UserBitmapWindow.SetZoomPercent(100); 
         UserBitmapWindow.ZoomIn() ; 
         // get current zoom factor 
         fZoomFactor = UserBitmapWindow.GetZoomFactor() ; 
         fZoomFactor += 0.50 ; 
         // set new zoom factor 
         UserBitmapWindow.SetZoomFactor(fZoomFactor) ; 
         uPercent = UserBitmapWindow.GetZoomPercent(); 
         uPercent += 50 ; 
         // set new zoom percent 
         UserBitmapWindow.SetZoomPercent(uPercent); 
         UserBitmapWindow.ZoomOut(); 
         // Drag Files ... 
         if (UserBitmapWindow.IsDragAcceptFilesEnabled() == FALSE) 
            UserBitmapWindow.EnableDragAcceptFiles(TRUE) ; 
      } 
      else 
         return FAILURE; 
   } 
   return SUCCESS ; 
}