Expanding Dialog

This article was contributed by D.Sivakumar

This article is based on an article contributed by Peter Pearson . Since I found my own version of this solution to be quite useful, in implementing expanding dialogs, I thought I would share mine with others as well. What I've done is to consolodate the code into a single function and provide a couple of bug fixes. Hopefully, this version will be of use to other people.

The single function is called ExpandyaContaract. Please note that I also changed the order in which the EnableWindow function is called. As per the original code, the static field also gets disabled. The other changes are the setting of the m_bExpanded flag to FALSE so that dialog starts with contracted mode and the calling of the ExpandyaContaract function from OnInitDialog.

/////////////////////////////////////////////////////////////
// CExpandDlgDlg dialog 

class CExpandDlgDlg : public CDialog { 
// Construction 
public: 
 CExpandDlgDlg(CWnd* pParent = NULL); // standard constructor 

// Dialog Data
 //{{AFX_DATA(CExpandDlgDlg) 
 enum { IDD = IDD_EXPANDDLG_DIALOG };
 CButton m_Devide; 
 //}}AFX_DATA 

 // ClassWizard generated virtual function overrides
 //{{AFX_VIRTUAL(CExpandDlgDlg)
protected: 
 virtual void DoDataExchange(CDataExchange* pDX);
 //}}AFX_VIRTUAL 
 int m_nNormalWidth; 
 int m_nExpandedWidth; 
 BOOL m_bExpanded; 

// Implementation 
protected: 
 HICON m_hIcon; 
 void ExpandyaContract(); 
 // Generated message map functions 
 //{{AFX_MSG(CExpandDlgDlg) 
 virtual BOOL OnInitDialog(); 
 afx_msg void OnSysCommand(UINT nID, LPARAM lParam); 
 afx_msg void OnPaint(); 
 afx_msg HCURSOR OnQueryDragIcon(); 
 afx_msg void OnButtonAdvanced(); 
 //}}AFX_MSG 
 DECLARE_MESSAGE_MAP() 
}; 
  

void CExpandDlgDlg::OnButtonAdvanced() 
{ 
 // TODO: Add your control notification handler code here 
 ExpandyaContract(); 
} 

void CExpandDlgDlg::ExpandyaContract() 
{ 
 CRect rcDlg, rcMarker; 

 GetWindowRect(rcDlg); 

 if (!m_bExpanded) 
 { 
  m_nExpandedWidth = rcDlg.Width(); 
  m_Devide.GetWindowRect(rcMarker); 
  m_nNormalWidth = (rcMarker.right - rcDlg.left); 

  rcDlg.SetRect(rcDlg.left, rcDlg.top, rcDlg.left + m_nNormalWidth+12, 
  rcDlg.top + rcDlg.Height()); 

  HWND hWndChild = ::GetDlgItem(m_hWnd, IDC_STATIC_DEVIDE); 

  while (hWndChild != NULL) 
  { 
   hWndChild = ::GetNextWindow(hWndChild, GW_HWNDNEXT); 
   ::EnableWindow(hWndChild, m_bExpanded); 
  } 
 } 
 else 
 { 
  rcDlg.SetRect( rcDlg.left, rcDlg.top, rcDlg.left + + m_nExpandedWidth, 
  rcDlg.top + rcDlg.Height() ); 

  HWND hWndChild = ::GetDlgItem(m_hWnd, IDC_STATIC_DEVIDE); 

  while (hWndChild != NULL) 
  { 
   hWndChild = ::GetNextWindow(hWndChild, GW_HWNDNEXT); 
   ::EnableWindow(hWndChild, m_bExpanded); 
  } 
 } 

 MoveWindow(rcDlg, TRUE); 
 m_bExpanded = !m_bExpanded; 
} 

Downloads

Download source code - 11 Kb


Comments

  • Expand DialogBox

    Posted by Legacy on 07/24/2001 12:00am

    Originally posted by: Ed Liu

    What is the most simple way to do is changing the dialogbox's size by MoveWindow().
    

    • test

      Posted by hari on 11/08/2012 09:25pm

      this is test

      Reply
    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • Live Event Date: October 29, 2014 @ 11:00 a.m. ET / 8:00 a.m. PT Are you interested in building a cognitive application using the power of IBM Watson? Need a platform that provides speed and ease for rapidly deploying this application? Join Chris Madison, Watson Solution Architect, as he walks through the process of building a Watson powered application on IBM Bluemix. Chris will talk about the new Watson Services just released on IBM bluemix, but more importantly he will do a step by step cognitive …

  • In this webinar, IDC featured speaker Steve Conway, Vice President of High Performance Computing, will present an update on the global x86 HPC cluster market. The presentation will include IDC's five-year forecast for the medium- to large-scale technical computing and data analysis emerging markets by systems, processors and application middleware. Cray's featured speaker, John Lee, Vice President of Cray Cluster Advanced Technology Systems, will present the new Cray® CS400™ cluster series based on …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds