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ShowWindowTree Utility

, 19 Jan 2002 49.3K 712 21
Display the hierarchy of windows (hidden or not) on your system along with a few options to modifiy them
// ShowWindowTreeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ShowWindowTree.h"
#include "ShowWindowTreeDlg.h"
#include "sizer.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CShowWindowTreeDlg dialog

CShowWindowTreeDlg::CShowWindowTreeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CShowWindowTreeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CShowWindowTreeDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CShowWindowTreeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CShowWindowTreeDlg)
	DDX_Control(pDX, IDC_BUILDFROM, m_BuildFrom);
	DDX_Control(pDX, IDC_TREE, m_Tree);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CShowWindowTreeDlg, CDialog)
	//{{AFX_MSG_MAP(CShowWindowTreeDlg)
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_SCAN, OnScan)
	ON_BN_CLICKED(IDC_SAVEIT, OnSaveit)
	ON_BN_CLICKED(IDC_LOAD, OnLoad)
	ON_NOTIFY(NM_RCLICK, IDC_TREE, OnRclickTree)
	//}}AFX_MSG_MAP
	ON_COMMAND_RANGE(IDM_SHOWWINDOWTOGGLE,IDM_ENABLEWINDOWTOGGLE,OnTreeMenu )
	ON_WM_SIZE()
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CShowWindowTreeDlg message handlers


BOOL CShowWindowTreeDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	MyList.Create(IDB_SIGNALS,12,0,RGB(255,255,255));
	m_Tree.SetImageList(&MyList,TVSIL_NORMAL);
	m_ValidHwnds=FALSE;	
	return TRUE;  
}

void CShowWindowTreeDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

HCURSOR CShowWindowTreeDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

CString GetOurClassString(HWND hWnd)
{
	CString s;
	char *buf;

	buf=s.GetBuffer(256);
	GetClassName(hWnd,buf,255);
	s.ReleaseBuffer();
	return(s);
}

CString GetOurWindowString(HWND hWnd)
{
	CString s;
	char *buf;

	buf=s.GetBuffer(256);
	GetWindowText(hWnd,buf,255);
	s.ReleaseBuffer();
	return(s);
}

void CShowWindowTreeDlg::OnScan() 
{
	CString cszFrom;
	HWND hWnd;

	// TODO: Add your control notification handler code here
	m_BuildFrom.GetWindowText((CString&)cszFrom);
	hWnd=NULL;
	if(cszFrom!="")
	{
		hWnd=::FindWindow(NULL,cszFrom);
		if(hWnd==NULL)
		{
		 	AfxMessageBox("No Window Starting Window Found",MB_OK);
			return;
		}
	} else hWnd=::GetDesktopWindow();
	hWnd=::GetWindow(hWnd,GW_CHILD);
	m_Tree.DeleteAllItems();

	TV_INSERTSTRUCT TreeCtrlItem;

	TreeCtrlItem.hParent = TVI_ROOT;
	TreeCtrlItem.hInsertAfter = TVI_LAST;
	TreeCtrlItem.item.mask = TVIF_TEXT | TVIF_PARAM;
	TreeCtrlItem.item.pszText = "Desktop";
	TreeCtrlItem.item.lParam = NULL;
	HTREEITEM hNewNode = m_Tree.InsertItem(&TreeCtrlItem);
	ScanWindow(hWnd,hNewNode);
	m_Tree.Expand(hNewNode,TVE_EXPAND); 
	m_ValidHwnds=TRUE;
}

void CShowWindowTreeDlg::ScanWindow(HWND hStart,HTREEITEM htiCurrentNode)
{
	HWND hWnd,hWnd1;
	CString cszClassString;
	CString cszWindowString;
	CString cszTemp;

	TV_INSERTSTRUCT TreeCtrlItem;

	hWnd=hStart;
	while(hWnd!=NULL)
	{
		char buf[256];
		::SendMessage(hWnd,WM_GETTEXT,250,(LPARAM) buf);
		cszWindowString=GetOurWindowString(hWnd);
		cszClassString=GetOurClassString(hWnd);
		cszTemp.Format("\"%s\"  \"%s\"",
			(LPCTSTR) cszClassString,buf);//(LPCTSTR) cszWindowString);

		TreeCtrlItem.hParent = htiCurrentNode;
		TreeCtrlItem.hInsertAfter = TVI_LAST;
		TreeCtrlItem.item.mask = TVIF_TEXT | TVIF_PARAM | TVIF_IMAGE | TVIF_SELECTEDIMAGE ;
		TreeCtrlItem.item.iImage = ::IsWindowVisible(hWnd)==TRUE ? 1 : 0;
		TreeCtrlItem.item.iSelectedImage = TreeCtrlItem.item.iImage;
		TreeCtrlItem.item.pszText = (LPSTR) (LPCSTR) cszTemp;
		TreeCtrlItem.item.lParam = (LPARAM) hWnd;
		HTREEITEM htiNewNode = m_Tree.InsertItem(&TreeCtrlItem);

		// Do Next Window
		if((hWnd1=::GetWindow(hWnd,GW_CHILD))!=NULL) 
			ScanWindow(hWnd1,htiNewNode);
		hWnd=::GetWindow(hWnd,GW_HWNDNEXT);		// Get Next Window
	}
	return;
}

void CShowWindowTreeDlg::SaveBranch(HTREEITEM h,CFile& f,CTreeCtrl& m_Tree)
{
	do
	{
		// Output node
		CString cszText=m_Tree.GetItemText(h);
		int i,s;
		m_Tree.GetItemImage(h,i,s);
		BOOL Child=m_Tree.ItemHasChildren(h);
		f.Write(Child ? "C" : "N",1);	// Node or Child marker
		f.Write(!i ? "H" : " ",1);		// Hidden flag
		long len=cszText.GetLength();
		f.Write(&len,sizeof(long));
		f.Write((LPCSTR) cszText,len);
		if(Child) SaveBranch(m_Tree.GetChildItem(h),f,m_Tree); // Write Out children
	} while((h=m_Tree.GetNextSiblingItem(h))!=NULL);
	f.Write("*",1);				// Write out end of node marker
}

void CShowWindowTreeDlg::LoadBranch(HTREEITEM h,CFile& f,CTreeCtrl& m_Tree)
{
	TV_INSERTSTRUCT TreeCtrlItem;

	while(1)
	{
		long len;
		char letter;
		char hidden;
		char buf[4096];

		f.Read(&letter,1);
		if(letter=='*') break;

		f.Read(&hidden,1);

		f.Read(&len,sizeof(long));
		f.Read(buf,len);
		buf[len]=0;

		TreeCtrlItem.hParent = h;
		TreeCtrlItem.hInsertAfter = TVI_LAST;
		TreeCtrlItem.item.mask = TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE ;
		TreeCtrlItem.item.iImage = hidden=='H' ? 0 : 1;
		TreeCtrlItem.item.iSelectedImage = TreeCtrlItem.item.iImage;
		TreeCtrlItem.item.pszText = buf;
		HTREEITEM hNewNode = m_Tree.InsertItem(&TreeCtrlItem);

		// If child then do children
		if(letter=='C') LoadBranch(hNewNode,f,m_Tree);
	}
	return;
}

void CShowWindowTreeDlg::OnSaveit() 
{
	// construct CString for filter
	CString cszFilter("RJD Files (*.RJD)|*.rjd||");

	// constructs an object of CFileDialog
	CFileDialog filedlg(FALSE,"rjd","WinData.rjd",OFN_EXPLORER | OFN_SHAREAWARE |
		OFN_NONETWORKBUTTON | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST | OFN_ENABLESIZING,cszFilter);

	// displays file dialog box
	if(filedlg.DoModal()!=IDOK) return;

	POSITION pos;
	if((pos=filedlg.GetStartPosition())==NULL) return;
	
	CString cszFilename=filedlg.GetNextPathName(pos);

	CFile f;

	f.Open(cszFilename,CFile::modeCreate|CFile::modeWrite|CFile::shareDenyNone);

	HTREEITEM r=m_Tree.GetRootItem();
	SaveBranch(r,f,m_Tree);
	f.Close();
}

void CShowWindowTreeDlg::OnLoad() 
{
	// construct CString for filter
	CString cszFilter("RJD Files (*.RJD)|*.rjd||");

	// constructs an object of CFileDialog
	CFileDialog filedlg(TRUE,"rjd",NULL,
		OFN_EXPLORER | OFN_SHAREAWARE | OFN_FILEMUSTEXIST | OFN_ENABLESIZING |
		OFN_NONETWORKBUTTON | OFN_HIDEREADONLY | OFN_PATHMUSTEXIST,cszFilter);

	// displays file dialog box
	if(filedlg.DoModal()!=IDOK) return;

	POSITION pos;
	if((pos=filedlg.GetStartPosition())==NULL) return;
	
	CString cszFilename=filedlg.GetNextPathName(pos);

	CFile f;

	m_ValidHwnds=FALSE;
	f.Open(cszFilename,CFile::modeRead|CFile::shareDenyNone);
	m_Tree.DeleteAllItems();

	HTREEITEM r=m_Tree.GetRootItem();
	LoadBranch(TVI_ROOT,f,m_Tree);
	f.Close();
	m_Tree.Expand(m_Tree.GetRootItem(),TVE_EXPAND); 
}


void CShowWindowTreeDlg::OnRclickTree(NMHDR* pNMHDR, LRESULT* pResult) 
{
	CPoint pt(GetMessagePos());
	
	CMenu menu;
	VERIFY(menu.LoadMenu(IDR_TREEMENU));

	CMenu* pPopup = menu.GetSubMenu(1);		// RIGHT BUTTON
	ASSERT(pPopup != NULL);

	CWnd* pWndPopupOwner = this;
	while(pWndPopupOwner->GetStyle() & WS_CHILD)
		pWndPopupOwner=pWndPopupOwner->GetParent();
	pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON, pt.x,pt.y,
		pWndPopupOwner,NULL);
	*pResult = 0;
}

void CShowWindowTreeDlg::OnTreeMenu(UINT nID)
{
	switch(nID)
	{
		case IDM_SHOWWINDOWTOGGLE :
			if(m_ValidHwnds)
			{
				HTREEITEM hti=m_Tree.GetSelectedItem();
				HWND hWnd=(HWND) m_Tree.GetItemData(hti);
				if(!::IsWindow(hWnd)) break;
				if(::IsWindowVisible(hWnd))
				{
					::ShowWindow(hWnd,SW_HIDE);
					m_Tree.SetItemImage(hti,0,0);
				}
				else
				{
					::ShowWindow(hWnd,SW_SHOW);
					m_Tree.SetItemImage(hti,1,1);
				}
			}
			break;


		case IDM_ENABLEWINDOWTOGGLE :
			if(m_ValidHwnds)
			{
				HTREEITEM hti=m_Tree.GetSelectedItem();
				HWND hWnd=(HWND) m_Tree.GetItemData(hti);
				if(!::IsWindow(hWnd)) break;
				if(::IsWindowEnabled(hWnd))
				{
					::EnableWindow(hWnd,FALSE);
				}
				else
				{
					::EnableWindow(hWnd,TRUE);
				}
			}
			break;


		case IDM_COPYTOCLIPBOARD : 
			{
				if(!OpenClipboard()) break;
				if(!EmptyClipboard()) break;
				HTREEITEM hti=m_Tree.GetSelectedItem();
				CString ws=m_Tree.GetItemText(hti);
				HANDLE mem=GlobalAlloc(GMEM_DDESHARE,ws.GetLength()+2);
				ASSERT(mem!=NULL);
				char *s=(char *) GlobalLock(mem);
				ASSERT(s!=NULL);
				memcpy(s,ws,ws.GetLength()+1);
				GlobalUnlock(mem);
				SetClipboardData(CF_TEXT,mem);
				CloseClipboard();
			}
			break;

		case IDM_SIZER :
			if(m_ValidHwnds)
			{
				HTREEITEM hti=m_Tree.GetSelectedItem();
				HWND hWnd=(HWND) m_Tree.GetItemData(hti);
				if(!::IsWindow(hWnd)) break;
				Sizer dlg;
				::GetWindowRect(hWnd,&dlg.m_Rect);
				if(dlg.DoModal()==IDOK)
				{
					CPoint pt=dlg.m_Rect.TopLeft();
					::ScreenToClient(::GetParent(hWnd),&pt);
					::SetWindowPos(hWnd,NULL,
						pt.x,pt.y,
//						dlg.m_cx-dlg.m_x,dlg.m_cy-dlg.m_y,
						dlg.m_Rect.Width(),dlg.m_Rect.Height(),
						SWP_NOACTIVATE|SWP_NOZORDER);
				}
			}
			break;
	}
}

void CShowWindowTreeDlg::OnSize(UINT nType, int cx, int cy)
{
	CDialog::OnSize(nType, cx, cy);
	CRect r;
	if(m_Tree.m_hWnd!=NULL)
	{
		m_Tree.GetWindowRect(&r);
		ScreenToClient(&r);
		m_Tree.MoveWindow(r.left,r.top,cx-r.left,cy-r.top);	
	}
}

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About the Author

Rocky Moore
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United States United States
Computer geek since the beginning of time, well, at least since 1981. Started with the Commodore VIC-20 with 3.5K RAM. Past two decades spent with C/C++, MFC and now totally consumed with .NET and C#.

Business owner here in beautiful southern Oregon with mountains, clean air and pure water. Great outdoors to enjoy when I can get away from the computers.

Web sites of interest:

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