Forum

Dear Tech Support,

I am trying to get a CExtSplitterWnd to show up in a CExtResiableDialog. My setup looks like this:

    CCreateContext ccx;

    ccx.m_pCurrentFrame = (CMainFrame*)(AfxGetApp()->m_pMainWnd);
    ccx.m_pCurrentDoc = ccx.m_pCurrentFrame->GetActiveDocument();
    ccx.m_pLastView = ccx.m_pCurrentFrame->GetActiveView();

    m_wndSplitter.CreateStatic(this, 2, 1);

    ccx.m_pNewViewClass = RUNTIME_CLASS(CObjectTypesView);
    m_wndSplitter.CreateView(0,0,RUNTIME_CLASS(CObjectTypesView), CSize(0,200), &ccx);
    ccx.m_pNewViewClass = RUNTIME_CLASS(CObjectListView);
    m_wndSplitter.CreateView(1,0,RUNTIME_CLASS(CObjectListView), CSize(0,0), &ccx);

Is this correct? When I run the application, the splitter does not show up.

Thanks,
-Brett

Here is what you need:

http://www.prof-uis.com/download/forums/test_splitter_dlg2.zip

Here is a small project that demonstrates how to create a splitter window in a dialog. A CFrameWnd is created in the dialog as a container for the splitter window. Then two panes with CExtGridWnd objects are added to the splitter window.

Thank you. This example was very helpful in getting my splitter wnd working.

One last refinement I am trying to add is to have the splitter bar resize to a percentage of what the whole splitter window is being resized to.

Do you know of how to do this?

Thanks
-Brett

You can handle the WM_SIZE message and implement the resizing algorithm for the first splitter pane in this way:

LRESULT CTest_splitter_dlgDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
 if( message == WM_SIZE ) 
 {
  if( m_wndSplitter.GetSafeHwnd() == NULL )
   return CExtResizableDialog::WindowProc(message, wParam, lParam);
 
  CRect rcWnd1;
  m_wndSplitter.GetClientRect( &rcWnd1 );
 
  INT cxCur = 0;
  INT cxMin = 0;
  m_wndSplitter.GetColumnInfo( 0, cxCur, cxMin );
  
  LRESULT lRes = CExtResizableDialog::WindowProc(message, wParam, lParam);
 
  CRect rcWnd2;
  m_wndSplitter.GetClientRect( &rcWnd2 );
 
  INT cxCurNew = cxCur + ( ( rcWnd2.Width() - rcWnd1.Width() ) / 2 );
  if( cxCurNew < 0 )
   cxCurNew = 0;
 
  m_wndSplitter.SetColumnInfo( 0, cxCurNew, cxMin );
  m_wndSplitter.RecalcLayout();
  
  return lRes;
 }
 return CExtResizableDialog::WindowProc(message, wParam, lParam);

Thank you, this works great.