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Environment: Visual C++ 6.0 SP3
This DirTreeCtrl allows a user to display folders and Filenames(optional).
The control uses the system image list for displaying the icons for the items in
the DirTreeCtrl.
You must not manage the Icon-Resources int the ImageList. The items sorted first by
foldernames and then (if selected) by filenames.
You can obtain the the full PathName of an Item.
You can set a start path before displaying the TreeItems.
You can select a subpath.
How to use this control:
Use it in a Dialog:
To use the control in a Dialog do the following steps:
CDirTreeCtrl m_DirTree;
Insert the Following Code in your OnInitDialog function:
BOOL CTreeDialog::OnInitDialog()
{
CDialog::OnInitDialog();
TCHAR szWorkDir[MAX_PATH];// TODO: Add extra initialization here
// Here we subclass our CDirTreeCtrl
if ( !m_TreeCtrl.m_hWnd )
{
if ( m_TreeCtrl.SubclassDlgItem( IDC_TREE1, this ) )
{
m_TreeCtrl.DisplayTree( NULL /*Display all*/,
TRUE /* TRUE = Display Files*/ );_getcwd( szWorkDir, 256 );
// set the Path to the current Work-Directory
m_TreeCtrl.SetSelPath( szWorkDir );
}
}return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
Using the CDirTreeCtrl in a CView
To use this control in a CView class do the following steps:
- Define a CTreeCtrl member in your CView header file.
- Define a ID_TREECTRL identifier in your CView header file.
- In the class wizard implement the create function for the CView class.
- Modify the CView::Create function listed below
- In the class wizard implement the WM_SIZE function.
- Modify the CView::OnSize function listed below.
BOOL CLeftView::Create(LPCTSTR lpszClassName,
LPCTSTR lpszWindowName,
DWORD dwStyle,
const RECT& rect,
CWnd* pParentWnd,
UINT nID,
CCreateContext* pContext)
{
// TODO: Add your specialized code here and/or call the base classBOOL bRet;
bRet = CWnd::Create(lpszClassName,
lpszWindowName,
dwStyle,
rect,
pParentWnd,
nID,
pContext);// this part creates the TreeCtrl and use the CLeftView
// as his parent Windowif ( m_DirTree.m_hWnd == NULL && bRet )
{
bRet = m_DirTree.Create(WS_CHILD | TVS_LINESATROOT |
TVS_HASBUTTONS | WS_VISIBLE |
TVS_HASLINES,
CRect(0, 0, 0, 0),
this
ID_TREECTRL );
if ( bRet )
m_DirTree.DisplayTree( NULL, TRUE );
}return bRet;
}void CLeftView::OnSize(UINT nType, int cx, int cy)
{
CView::OnSize(nType, cx, cy);// TODO: Add your message handler code here
if ( m_DirTree.m_hWnd )
m_DirTree.SetWindowPos( NULL, 0, 0, cx, cy, SWP_NOZORDER | SWP_NOMOVE );
}
