MFC多個控件在對話框上的大小變化



對話框中多個控件隨窗體大小變化：

在類中加成員函數和成員變量： 
       

 void   SetControlInfo(WORD   CtrlId);  

protected: 
         int   m_nCx, m_nCy; 
         CDWordArray   m_ctlInfo; 

構造函數中初始化： 

m_nCx   =   m_nCy   =  0; 

加控件信息的函數定義： 

void   CTestDlg::SetControlInfo(WORD   CtrlId) 
 { 
         m_ctlInfo.Add(CtrlId); 
   
 } 

修改OnSize函數：

void   CTestDlg::OnSize(UINT   nType,   int   cx,  int   cy) 
 { 


        CDialog::OnSize(nType, cx, cy);
         float   dx =   (m_nCx  ==0) ? 1 : (float)((float)cx / (float)m_nCx); 
         float   dy =   (m_nCy  ==0) ? 1 : (float)((float)cy / (float)m_nCy);
   
         if(m_nCx) 
         { 
                 CRect   WndRect; 
                 CWnd   *pWnd; 
                 for(int   i  =   0;   i   <   m_ctlInfo.GetSize();   i++) 
                 { 
                        pWnd   =   GetDlgItem(m_ctlInfo[i]); 
                        if(!pWnd) 
                        { 
                                TRACE( "Control   ID   -  %d   NOT   FOUND!!\n ",m_ctlInfo[i]); 


                                continue; 
                        } 
   
                        pWnd-> GetWindowRect(&WndRect); 
                        ScreenToClient(&WndRect); 
   
                        WndRect.left   =   (int)(WndRect.left * dx); 
                        WndRect.right   =   (int)(WndRect.right*   dx); 
                        WndRect.bottom   =   (int)(WndRect.bottom*dy); 
                        WndRect.top   =   (int)(WndRect.top*dy); 
   
                        pWnd-> MoveWindow(&WndRect); 
                 } 
  
         } 
         m_nCx   =   cx; 
         m_nCy   =   cy; 
 } 
   

在OnInitDialog函數中加入控件ID：    

SetControlInfo(IDC_BUTTON);