C / C++ / MFC

CDC* pDC;
CRect rectPic;
void f_curve();
void CAISIDlg::OnBnClickedButton1()
{
  BeginWaitCursor();
  UpdateData(TRUE);
width=m_width;
     ...           //variable assignment
  UpdateData(FALSE);

  if( Read_data(FolderPath,dhPath)!=0 )  
{
   m_picDraw.GetClientRect(&rectPic);
   pDC = m_picDraw.GetDC();

   f_curve();   //draw graph

   m_transmisivity = ((long int)(transmisivity*1e5))/1e5; //show result
        m_BSE = BSE;                                           //show result
   UpdateData(FALSE);
}
EndWaitCursor();
}

void f_curve()
{
  ...
  pDC->SelectObject(PenRed);
  pDC->MoveTo( (int)( (db_jinyan[0][0]-minX)*itlX ),
     (int)( (db_jinyan[1][0]-minY)*itlY ) 
             );

  for(int i=0;i<Len;i++)
pDC->LineTo( 
        (int)( (db_jinyan[0][i]-minX)*itlX ),
        (int)( (db_jinyan[1][i]-minY)*itlY ) 
           );
  ...
}

  Event_Handle = ::CreateEvent(NULL, FALSE, FALSE, NULL);
		 
int i;
UINT start_port;

     // Sockevent.SetEvent();

        for (i = 0, start_port = 11007; i < 4; start_port++, i++)
   {


  threadptr[i] = NULL; 
  threadptr[i] = new SockCLeintThread(start_port);
  threadptr[i]->m_pActiveWnd =  m_pMainWnd;
  threadptr[i]->m_pMainWnd =   m_pMainWnd;

		 

			 
         if (threadptr[i] == NULL)
  	            m_pMainWnd->MessageBox((LPCTSTR)"SockClientThreadFail",NULL,MB_ICONERROR);

		   threadptr[i]->CreateThread(CREATE_SUSPENDED,0,NULL);  
   
                     threadptr[i]->flags.is_connected = 0;
             
                     threadptr[i]->ipaddr = (LPCTSTR)"192.168.1.4";					
  
 		   threadptr[i]->flags.busy = 0;
 
 		   SetThreadName(threadptr[i]->m_nThreadID,thread[i]);
 					
             	      	
 		   threadptr[i]->ResumeThread();

	DWORD return_value = ::WaitForSingleObject(Event_Handle,INFINITE);   // wait for connection

// Get a menu handle for the one to have an image added to it
HMENU hMenuMain = GetMenu(hWnd);
HMENU hTestMenu = GetSubMenu(hMenuMain, PORT_MENU_ID);

// Load the image i.e. a bitmap 'strip' that is actually a number of bitmaps
HIMAGELIST hImageList = ::ImageList_LoadImage(hInst, MAKEINTRESOURCE(IDB_BITMAP1), 16, 0,
                      RGB(255,0,255), IMAGE_BITMAP, LR_SHARED | LR_LOADTRANSPARENT);

// Get DC for Window client area
HDC hDCWindow = ::GetDC(hWnd);

// and create a compatibles DC im memory
HDC hDCDest = CreateCompatibleDC(hDCWindow);

// Create a bitmap compatible with the device associated with the DC
HBITMAP hComapatBitmap = CreateCompatibleBitmap(hDCWindow, 16, 16);

// Select the destination bitmap into the DC
HGDIOBJ hOldDestBmp = SelectObject(hDCDest, hComapatBitmap);

// Bitmap is already selected into a screen-compatible device context by the image list
BOOL bDrawn = ImageList_DrawEx(hImageList, 1, hDCDest, 0, 0, 16, 16, RGB(255, 0, 255),
                                                    CLR_NONE , ILD_TRANSPARENT);

// Select back old object back in retrieving returned drawn bitmap
HBITMAP hRetrievedBitmap = (HBITMAP)::SelectObject(hDCDest, hOldDestBmp);

// as used CreateCompatibleDC(...) must delete it
::DeleteDC(hDCDest);

// as used GetDc must release it
::ReleaseDC(hWnd, hDCWindow);

// Create a structure that describes the change to make to the menu item
MENUITEMINFO MenuItemInfo;
::SecureZeroMemory(&MenuItemInfo, sizeof(MENUITEMINFO));
MenuItemInfo.cbSize = sizeof(MENUITEMINFO);

MenuItemInfo.fMask = MIIM_BITMAP;
MenuItemInfo.hbmpItem = hRetrievedBitmap;

// Make the change
::SetMenuItemInfo(hTestMenu, ID_PORT_EDIT, FALSE, &MenuItemInfo);

// Call as required by Windows.
::DrawMenuBar(hWnd);