BOOL Create(CWnd* pParentWnd,int nMaxRows,int nMaxCols,SIZE sizeMin,CCreateContext* pContext,DWORD dwStyle,UINT nID);

BOOL CreateStatic(CWnd* pParentWnd,int nRows,int nCols,DWORD dwStyle,UINT nID) 

BOOL CreateView (int row,int col,CruntimeClass* pViewClass,SIZE sizeinit,CcreateContext* pContext);

DWORD dwCreateStyle = dwStyle & ~(WS_HSCROLL|WS_VSCROLL);
if (afxData.bWin4) 
       dwCreateStyle &= ~WS_BORDER; //create with the same wnd-class as MDI-Frame (no erase bkgnd) 
if (!CreateEx(0, _afxWndMDIFrame, NULL, dwCreateStyle, 
          0, 0, 0, 0,pParentWnd->m_hWnd, (HMENU)nID, NULL)) 
       return FALSE; // create invisible 
          

m_wndSplitter.Create(this,2,2,CSize(100,100),pContext);

创建步骤：
▲ 在创建之前我们必须先用AppWizard生成单文档CuteFTP，生成的视类为 CCuteFTPView.同时在增加三个视类或者从视类继承而来的派生类CView2,CView3 CView4.
▲ 增加成员：
在Cmainfrm.h中我们将增加下面的代码：

CSplitterWnd wndSplitter1;
                  CSplitterWnd wndSplitter2;

BOOL CMainFrame::OnCreateClient( LPCREATESTRUCT  /*lpcs*/, CCreateContext* pContext) 
{ //创建一个静态分栏窗口，分为三行一列 
     if(m_wndSplitter1.CreateStatic(this,3,1)==NULL) 
              return FALSE;
  //将CCuteFTPView连接到0行0列窗格上
     m_wndSplitter1.CreateView(0,0,RUNTIME_CLASS(CCuteFTPView),CSize(100,100), pContext); 
     m_wndSplitter1.CreateView(2,0,RUNTIME_CLASS(CView4),CSize(100,100),pContext); 
  //将CView4连接到0行2列
     if(m_wndSplitter2.CreateStatic(&m_wndSplitter,1,2,WS_CHILD|WS_VISIBLE, 
          m_wndSplitter.IdFromRowCol(1, 0))==NULL) 
               return FALSE; //将第1行0列再分开1行2列 
  //将CView2类连接到第二个分栏对象的0行0列
          m_wndSplitter2.CreateView(0,0,RUNTIME_CLASS(CView2),CSize(400,300),pContext); 
  //将CView3类连接到第二个分栏对象的0行1列
          m_wndSplitter2.CreateView(0,1,RUNTIME_CLASS(CView3),CSize(400,300),pContext); 
               return TRUE; 
} 

AddDocTemplate (new CMultiDocTemplate(IDR_VIEW2TYPE, 
          
          RUNTIME_CLASS(CMainDoc), 
          RUNTIME_CLASS(CMDIChildWnd), 
          RUNTIME_CLASS(CView2))); 

CCuteFTPView* pCuteFTPView;
CView2* pView2;
POSITION pos;
CView* pView;
while(pos!=NULL)
{
      pView=GetNextView(pos); 
      if(pView->IsKindOf(RUNTIME_CLASS(CCuteFTPView))==NULL) 
          pCuteFTPView=(CCuteFTPView*)pView; 
      else(pView->IsKindOf(RUNTIME_CLASS(CCuteFTPView))==NULL) 
          pView2=(CView2*)pView; 
} 

CCuteFTPDoc* pDoc=GetDocument();
CView2* pView2=pDoc->pView3;
pView3.DoIt(); 

CMainFrame* MainFrame=(CMainFrame*)this->GetParent()->GetParent(); 
          
          CCuteFTPDoc* Doc=(CCuteFTPDoc*)MainFrame->GetActiveDocument();
          if(Doc!=NULL) Doc->DoIt(); 
          
          CCuteFTPDoc中的相应的处理函数DoIt()代码如下： 
          
          CView2* pView2; 
          POSITION pos; 
          CView* pView; 
          while(pos!=NULL) 
          { 
                  pView=GetNextView(pos);
                  if(pView->IsKindOf(RUNTIME_CLASS(CView2))==NULL) 
                  pView2=(CView2*)pView; 
          } 
          pView2->DoIt(); 

CMainFrame* MainFrame=(CMainFrame*)this->GetParent()->GetParent(); 
          
          CView4* View4=(CView4*)MainFrame->m_wndSplitter1.GetPane(2,0); 
          View4->DoIt(); 

virtual void StartTracking(int ht); 
virtual CWnd* GetActivePane(int* pRow = NULL, int* pCol  = NULL); 
virtual void SetActivePane( int row, int col, CWnd* pWnd  = NULL ); 
virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam); 
virtual BOOL OnNotify( WPARAM wParam, LPARAM lParam, LRESULT* pResult ); 
virtual BOOL OnWndMsg( UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult ); 

enum HitTestValue 
{ 
                  noHit = 0,//表示没有选中任何对象
                  vSplitterBox = 1,
                  hSplitterBox = 2,
                  bothSplitterBox = 3,
                  vSplitterBar1 = 101,//代表各个方向的水平分割条
                  vSplitterBar15 = 115,
                  hSplitterBar1 = 201,//代表垂直方向的各个分割条
                  hSplitterBar15 = 215,
                  splitterIntersection1 = 301,//代表各个交叉点
                  splitterIntersection225 = 525
};
          

CWnd* CxSplitterWnd::GetActivePane(int* pRow, int* pCol)
          {
                  ASSERT_VALID(this); 
                  //获得当前的获得焦点的窗口
                  //下面注释粗体的是原有的代码的主要部分。
                  // CWnd* pView = NULL;
                  //CFrameWnd* pFrameWnd = GetParentFrame();
                  //ASSERT_VALID(pFrameWnd);
                  //pView = pFrameWnd->GetActiveView();
                  //if (pView == NULL)
                  // pView = GetFocus();
                  CWnd* pView = GetFocus();
                  if (pView != NULL && !IsChildPane(pView, pRow, pCol))
                          pView = NULL;
                  return pView; 
} 
          
void CxSplitterWnd::SetActivePane( int row, int col, CWnd* pWnd) 
{
                  CWnd* pPane = pWnd == NULL ? GetPane(row, col) : pWnd; 
                  //下面加注释粗体的是原有代码的主要部分。
                  //FrameWnd* pFrameWnd = GetParentFrame();
                  //ASSERT_VALID(pFrameWnd); 
                  //pFrameWnd->SetActiveView((CView*)pPane); 
                  pPane->SetFocus();//修改后的语句 
}
          
void CxSplitterWnd::StartTracking(int ht)
{
                  ASSERT_VALID(this); 
                  if (ht == noHit) 
                          return;
                  // GetHitRect will restrict ''''m_rectLimit'''' as appropriate 
          
                  GetInsideRect(m_rectLimit);
                  if (ht >= splitterIntersection1 && ht <= splitterIntersection225) 
          
                  { 
                          // split two directions (two tracking rectangles) 
          
                          int row = (ht - splitterIntersection1) / 15; 
          
                          int col = (ht - splitterIntersection1) % 15; 
          
                          GetHitRect(row + vSplitterBar1, m_rectTracker); 
          
                          int yTrackOffset = m_ptTrackOffset.y; 
                          m_bTracking2 = TRUE; 
                          GetHitRect(col + hSplitterBar1, m_rectTracker2); 
          
                          m_ptTrackOffset.y = yTrackOffset; 
                  } 
                  else if (ht == bothSplitterBox) 
                  { 
                  // hit on splitter boxes (for keyboard) 
                  GetHitRect(vSplitterBox, m_rectTracker); 
                  int yTrackOffset = m_ptTrackOffset.y; 
                  m_bTracking2 = TRUE; 
                  GetHitRect(hSplitterBox, m_rectTracker2); 
                  m_ptTrackOffset.y = yTrackOffset; // center it 
                  m_rectTracker.OffsetRect(0, m_rectLimit.Height()/2); m_rectTracker2.OffsetRect(m_rectLimit.Width()/2, 
          0); 
                  } 
                  else
                  { 
                  // only hit one bar 
                  GetHitRect(ht, m_rectTracker); 
                  } 
          
          //下面加注释的将从程序中删去。 
          //CView* pView = (CView*)GetActivePane(); 
          //if (pView != NULL && pView->IsKindOf(RUNTIME_CLASS(CView))) 
          //{ 
          // ASSERT_VALID(pView); 
          // CFrameWnd* pFrameWnd = GetParentFrame(); 
          //ASSERT_VALID(pFrameWnd); 
          //pView->OnActivateFrame(WA_INACTIVE, pFrameWnd); 
          // } 
          // steal focus and capture
                  SetCapture();
                  SetFocus();
                  // make sure no updates are pending 
                  RedrawWindow(NULL, NULL, RDW_ALLCHILDREN | RDW_UPDATENOW); 
          
                  // set tracking state and appropriate cursor
                  m_bTracking = TRUE;
                  OnInvertTracker(m_rectTracker); 
                  if (m_bTracking2) 
                          OnInvertTracker(m_rectTracker2); 
                  m_htTrack = ht; 
                  SetSplitCursor(ht); 
}
          
BOOL CxSplitterWnd::OnCommand(WPARAM wParam, LPARAM lParam) 
{ 
                  if (CWnd::OnCommand(wParam, lParam)) 
                          return TRUE; 
                  //下面粗体的是原程序的语句 
          //return GetParentFrame()->SendMessage(WM_COMMAND, wParam, lParam); 
          
                  return GetParent()->SendMessage(WM_COMMAND, wParam, lParam); 
          
}
BOOL CxSplitterWnd::OnNotify( WPARAM wParam, LPARAM lParam, LRESULT* pResult )
{
                  if (CWnd::OnNotify(wParam, lParam, pResult)) 
                          return TRUE; 
                  //下面粗体的是源程序的语句
                  //*pResult = GetParentFrame()->SendMessage(WM_NOTIFY, 
          wParam, lParam);
                  *pResult = GetParent()->SendMessage(WM_NOTIFY, wParam, lParam);
                  return TRUE;
} 
          
BOOL CxSplitterWnd::OnWndMsg(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult) 
{ 
                  // The code line below is necessary if using CxSplitterWnd 
          in a regular dll 
                  // AFX_MANAGE_STATE(AfxGetStaticModuleState());
                  return CWnd::OnWndMsg(message, wParam, lParam, pResult); 
          
} 

void CXXSplitterWnd::OnLButtonDown(UINT nFlags,CPoint point) 
{ 
        CWnd::OnLButtonDown(nFlags,point);
} 

void CSplitterWndEx::OnDrawSplitter(CDC *pDC, ESplitType nType, const CRect &rectArg)
{
                  if(pDC==NULL) 
                  { 
                  RedrawWindow(rectArg,NULL,RDW_INVALIDATE|RDW_NOCHILDREN);
                  return;
                  } 
                  ASSERT_VALID(pDC);
                  CRect rc=rectArg;
                  switch(nType) 
                  { 
                  case splitBorder:
                  //重画分割窗口边界,使之为红色 
                          pDC->Draw3dRect(rc,RGB(255,0,0),RGB(255,0,0));
                          rc.InflateRect(-CX_BORDER,-CY_BORDER); 
                          pDC->Draw3dRect(rc,RGB(255,0,0),RGB(255,0,0)); 
          
                          return; 
                  case splitBox:
                          pDC->Draw3dRect(rc,RGB(0,0,0),RGB(0,0,0));
                          rc.InflateRect(-CX_BORDER,-CY_BORDER); 
                          pDC->Draw3dRect(rc,RGB(0,0,0),RGB(0,0,0));
                          rc.InflateRect(-CX_BORDER,-CY_BORDER);
                          pDC->FillSolidRect(rc,RGB(0,0,0)); 
                          pDC->Draw3dRect(rc,RGB(0,0,0),RGB(0,0,0));
                          return; 
                  case splitBar: 
                  //重画分割条，使之为绿色 
                          pDC->FillSolidRect(rc,RGB(255,255,255));
                          rc.InflateRect(-5,-5); 
                          pDC->Draw3dRect(rc,RGB(255,0,0),RGB(255,0,0)); 
          
                          return; 
                  default: 
                          ASSERT(FALSE); 
                  } 
                  pDC->FillSolidRect(rc,RGB(0,0,255));
} 
void CSplitterWndEx::OnInvertTracker(CRect &rect) 
{ 
                  ASSERT_VALID(this);
                  ASSERT(!rect.IsRectEmpty()); 
                  ASSERT((GetStyle()&WS_CLIPCHILDREN)==0);
                  CRect rc=rect; 
                  rc.InflateRect(2,2);
                  CDC* pDC=GetDC(); 
                  CBrush* pBrush=CDC::GetHalftoneBrush();
                  HBRUSH hOldBrush=NULL;
                  if(pBrush!=NULL) hOldBrush=(HBRUSH)SelectObject(pDC->m_hDC,pBrush->m_hObject);
                  pDC->PatBlt(rc.left,rc.top,rc.Width(),rc.Height(),BLACKNESS); 
          
                  if(hOldBrush!=NULL) 
                  SelectObject(pDC->m_hDC,hOldBrush);
                  ReleaseDC(pDC); 
} 

     ASSERT()被测试它的参数，若参数为0，则中断执行并打印一段说明消息。在 Release 版本的程序中它不起任何作用。ASSERT()使用的时候必须保证参数表达式中不能有函数调用（译者注：ASSERT()宏在 Release 版本中不对表达式求值），因此对于任何有函数调用的参数表达式，应该使用宏 VERIFY()，以保证表达式中的函数调用在 Release 版本中会被正确求值。

断言(assertion)用带断言信息(程序, 模块, assertion行)的对话框执行. 对话框有3个按钮: "Break", "Repeat" ("Debug"), and "Continue" ("Ignore"). "Break" 结束程序, "Continue" 忽略断言, 最有用的是"Repeat"按钮. 按下它在断言的地方打开源代码编辑器. 在这里你可以测试所有的变量值并明白哪里出了问题。

例如：ASSERT(pPointer);ASSERT(n>0 && n<100);ASSERT(0);

ASSERT在执行简单验证时很有用，但对于C++对象，特别是由CObject派生的对象，则有更好的方法ASSERT_VALID来实现类似操作。作为一般规则，我们应在开始使用每一个对象之前检查数据讹误,

ASSERT_VALID宏使得对CObject的派生类实现该操作非常简单。

例如：ASSERT_VALID(this);ASSERT_VALID(pView);

VERIFY()

    VERIFY()和 ASSERT()很相似，区别在于在 Release 版本中它仍然有效（译者注：原作者在这里没有讲清楚，VERIFY()不会打印说明，只是会对参数表达式求值）。

TRACE()

      TRACE()基本上就是函数 printf()的一个复制品，唯一的区别是它把结果输出到调试窗口。在 Release 版本中，它也是无效的。一般是用TRACE0(),TRACE1(),TRACE2()…而不用TRACE()。

 这三个宏在 Release 版本中都不会产生任何实质性的影响，它们是否起作用取决于是否定义了预定义了宏 _DEBUG。这是对 Microsoft Visual C++ 而言，在其它的编译器中可能其它不同的宏。

常用用法：

为了控制传进的指针:

void SomeFun(SomeType* pPointer)

{

  ASSERT(pPointer);

 //some instructions.

}

你可以在"switch" 和 "if"操作中捕获奇怪的值
例如:

switch(nRGBColors){
  case nRed:   {//some instructions.} break;
  case nGreen: {//some instructions.} break;
  case nBlue:  {//some instructions.} break;
  default: ASSERT(0);    // we should have never come here!
}

if(nWaterTemp >=0 && nWaterTemp < 50){
  //some instructions.
}
else if(nWaterTemp >= 50 && nWaterTemp <= 100){
  //some instructions.
}
else{
  ASSERT(0);    // we should have never come here!
}

对值的断言:
ASSERT(nSomeValue >= MinValue and nSomeValue <= MaxValue);
ASSERT(nOtherValue != 0);

可爱的 ASSERT 错误
ASSERT( m_MyWnd.Create() );

呕! 这是一个可怕的错误! 程序在调试版中正常工作, 在发行版中不工作. 记住: 这是一个在发行版中将被移除的宏. 以这种方法你的窗口将永远不会被创建. 如果你用 MFC, 这样做:

VERIFY( m_MyWnd.Create() );

它在调试版中像 ASSERT 一样并且在发行版中执行 m_MyWnd.Create() 。