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Window Unhidder

By , 14 Feb 2006
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Window Unhidder

Introduction

This program allows the user to hide-unhide any window that is running on the system. It also gives interesting information about programs' activities. Many programs use hidden windows, that sometimes may cause problems. With WindowUnhidder, you can hide-unhide, enable/disable any window, and get information about process, title, class, parent window, exec path, etc.

Background

The first aim of this program was to find and unhide some windows. Once done, I saw that it could be useful to show all info I can get.

Using the code

The program is ready for use. Most part of the code is in the class CWindowUnhidderDlg. I know that some more classes could be implemented, but at the beginning it was a little app, and it was not necessary.

The part of the code where windows are searched for is shown here:

    //
    // search windows:
    char title[512], titlepadre[512], clase[100];
    HWND mWnd = NULL;
    HWND mWndPad = NULL;
    HWND mWndSys = NULL;
    mWnd = ::FindWindowEx(NULL,mWnd,NULL,NULL);

    int ii=0;
    while ( mWnd )
    {
        ::GetWindowText(mWnd, title, 256);
        ::GetClassName(mWnd, clase, 100);
        CString vis = ::IsWindowVisible(mWnd)?'1':'0';
        CString ena = ::IsWindowEnabled(mWnd)?'1':'0';

        CString Cadena = "";
        mWndPad = mWnd;
        CString TitPad = "";
        memset(titlepadre,0,512);
        do
        {
            mWndPad = ::GetParent(mWndPad);
            if (mWndPad)
                if(m_ParentHandler.GetCheck()!=0)
                    sprintf(titlepadre,"#%X",mWndPad);
                else
                    ::GetWindowText(mWndPad, titlepadre, 256);
            TitPad = titlepadre;
            TitPad.TrimRight();
            Cadena = CString(mWndPad?CString((TitPad=="")? 
                     "[no title]":TitPad):"[Desktop]") + 
                     CString(" :: ") + Cadena;
        }
        while (mWndPad);

        
        CString Tit = title;
        if(Tit=="")Tit="[no title]";
        
        DWORD wd=0;
        GetWindowThreadProcessId(mWnd,&wd);
        stringstream ss,ssw;
        ss << wd;
        CString proc;
        bool full = m_FullPath.GetCheck() != 0;
        proc = GetProcessName(wd,full);

        int col=0;
        ssw << "#" << uppercase << hex << (int)mWnd;
        m_List.AddItem(ii,col++,ssw.str());
        m_List.AddItem(ii,col++,ss.str());
        m_List.AddItem(ii,col++,proc);
        m_List.AddItem(ii,col++,vis);
        m_List.AddItem(ii,col++,ena);
        m_List.AddItem(ii,col++,Tit);
        m_List.AddItem(ii,col++,clase);
        m_List.AddItem(ii,col++,Cadena);
        m_List.SetItemData(ii,DWORD(mWnd));

        ii++;

        mWnd = ::GetNextWindow(mWnd,GW_HWNDNEXT);
    }
    //

Points of Interest

It is interesting to see how some programs use hidden windows. I found a funny trick: try to hide the windows (you can sort the columns) with the class "Progman" or "Shell_TrayWnd"... you will see what happens with the desktop!

History

Thanks to Hugo Gonzalez Castro for his help.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

JJimenezShaw
Software Developer (Senior)
Spain Spain
Javier Jimenez Shaw. Born in Madrid in 1975. Civil engineer, is working developing financial algorithms for exotic products.

Comments and Discussions

 
QuestionGreat Job! PinmemberBitterstamps5-Jun-07 18:44 
Great program. It's amazing what is running that you cant see. One question: can it be used to hide the window that called it? I am working on a security program and I would like to have the ability to run the process without an open window. I understand that it still shows up in Task Manager and that is fine with me. I would like to incorporate the code for the visiblity button into a C# app I am writing. Can you tell me what I need to incorporate to get it to work? ANY help would be appreciated!
 
Thanks
Chris
AnswerRe: Great Job! PinmemberJJimenezShaw6-Jun-07 3:23 
GeneralSpelling Pinmemberhain21-Feb-06 12:00 
GeneralRe: Spelling PinmemberJJimenezShaw21-Feb-06 12:36 
GeneralOther tool... PinmemberDuneAgent21-Feb-06 11:00 
GeneralGood work! PinmemberPaul S. Vickery16-Feb-06 22:22 

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