Question

How I can delete window title from my application?

Asked by: juberti

Hello,
I'm new to C++ and programming, I've background for php and perl but started to write some C++ codes. I'm trying to make a window title become untitle i mean window icon should stay there but window name must be deleted.
I need it to because I'm injecting a dll to one of old game and need to delete its window title.
Regards,
Justin Uberti

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Asked On
2009-07-05 at 05:59:05ID24544784
Tags

Deleting window title

,

untitled window

Topic

C++ Programming Language

Participating Experts
3
Points
500
Comments
7

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Answers

 

by: macksmPosted on 2009-07-05 at 06:07:20ID: 24779910

Give some spaces in the title property. It will appear as if no title is there.

 

by: ErburethPosted on 2009-07-05 at 06:08:02ID: 24779911

If you are using plain Windows API, you need to obtain handle of the window you want to edit, then you can call SetWindowText, which is in user32.dll (you can use #include <Windows.h>)
here is the function prototype

BOOL SetWindowText (
  HWND hWnd; // handle of a window
  LPCTSTR lpString // new text in a window
);

See MSDN for more info

 

by: jubertiPosted on 2009-07-05 at 06:54:21ID: 24780019

Erbureth , thanks i done it after looking it.
Now my only problem is getting parentwindows hwnd i can make it if parent windows title is static thanks for your help and if you know how can i get parent window's hwnd ill be appreciated.
I tried getparentwindow but couldnt succeeded :)

 

by: jubertiPosted on 2009-07-05 at 06:57:31ID: 24780024

macksm, ty for your reply too but it wasn't the thing i was seeking

 

by: jkrPosted on 2009-07-05 at 06:57:40ID: 24780025

In order to set/erase any window's text, you first need the window handle. Since you are injecting a DLL, you don't have that one, but only a process handle, ut that's a start. You could basically do the following:

HWND  g_hwnd;
int  g_nFound;
 
BOOL CALLBACK FindHwndFromPID( HWND hwnd, LPARAM lParam);
 
 
HWND GetHwndFromPID ( DWORD dwProcessId)
{
 g_hwnd = NULL;
 g_nFound = 0;
 
 EnumWindows (  FindHwndFromPID,    ( LPARAM) dwProcessId));
 
 if ( g_hwnd)  // we found one...
      return ( g_hwnd);
 
 // nothing found :-(
 
 return (NULL);
}
 
BOOL CALLBACK FindHwndFromPID( HWND hwnd, LPARAM lParam)
{
    DWORD   dwPID2Find  =   ( DWORD) lParam;
    DWORD   dwPID       =   0;
 
    if  (   GetWindowThreadProcessId    (   hwnd,   &dwPID))
        {
            if  (   dwPID   ==  dwPID2Find)
                {
                    g_hwnd  =   hwnd;
 
 
                    return  (   FALSE);
                }
        }
 
    return  (   TRUE);
}
 
// ...
// ...
// in your DLL:
 
HWND hWnd = GetHwndFromPID(GetCurrentProcessId());
 
SetWindowTexy(hWnd,_T("")); // or just "" if compiling ANSI

                                              
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by: jubertiPosted on 2009-07-05 at 07:16:58ID: 24780064

Hello jkr, ty for your example, i do nearly same for static window title name with putting NULL with your example i can do it for parent window title.
Now the main purpose of i'm doing it i need to hide that window from enumwindows but as i noticed now if user searchs for null window title he can attach its program to mine. Now i think i need to seek another thing for doing this.
Between is there a way for completely removing title/window from enumwindows or hiding it?

 

by: jubertiPosted on 2009-07-05 at 07:50:04ID: 24780161

Ah my bad sorry, i checked handle of injection it finds explorer.exe and injects ty now the thing does the job i wanted.

20120131-EE-VQP-002

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