C / C++ / MFC

James R. Twine19-Jul-07 5:11

19-Jul-07 5:11

   I believe that little feature was fixed in one of the XP service packs, and I believe that modern browsers use RichEdit or similar controls (hence the ability to drag-n-drop text with them).

   Cannot help you with an easy way to do it - the only way I can think of is to hook into the process and get the text directy (WM_GETTEXT) or get access to the internal buffer(s) used by the edit control and extract the text from there.

   Peace!

-=- James
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Dave Kerr19-Jul-07 5:17

Dave Kerr

19-Jul-07 5:17

So the browser IS actually creating a rich edit control? If so that's good news because I have a dll I can inject into the process to acquire the password, this lets me skip over XPs new security updates. What I need now is some way of getting the HWND of an edit control in a webpage- when I look at the page with spy++, I just see one window for the entire page- no children!

any ideas?

Dave Kerr
dopedcoder@googlemail.com
http://www.dopecode.co.uk

James R. Twine19-Jul-07 5:21

19-Jul-07 5:21

It is possible that the page being rendered is not placing/positioning real controls on the client area, but simply drawing onto it using off-screen controls, similar to how you print something. If they are using real controls (which I think that they are), you should be able to figure out the HWND of the parent/container and then enumerate windows looking for password-styled controls.

Other than that, no ideas...

Peace!

Re: OnScreen KeyBoard Issue

Michael Dunn19-Jul-07 7:05

Michael Dunn

19-Jul-07 7:05

IE uses windowless ActiveX controls[^], not regular edit boxes.
Firefox has its own home-grown UI, I doubt it uses regular edit boxes either.

--Mike--
Visual C++ MVP Cool | :cool:

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OnScreen KeyBoard Issue

robshere19-Jul-07 4:34

robshere

19-Jul-07 4:34

Hai All,

I'm creating an onscreen keyboard.In that I'm using the techinique of changing the focus from the keyboard window to the last focused window after the mouse click on the keyboard window and then sending the input using the keybd_event().

It is working good with notepad.
My problems are
1.It is not working with WordPad.
2.the oter problem is that if I'm having a password dialog created in MFC and while I'm trying to enter the password using the keyboard window,only thye current key entered is shown.the earlier one if exits is replaced.So I tried to store the last cursor postion and retrive it to set as soon as the password window getthe focus(ie,after the keybord windows button is pressed).But I'm not able to set the cursor to the previous postion of password dialog.

Please tell me some way to fix it.Or if my logic is inadiquate please refer me some suggestions or links to do that.When I checked the default Onscreen Keyboard supplied by "Windows" and it works really good.

Please tell me some way to proceed.

Thanks and regards
Robs Here

Matthew Faithfull19-Jul-07 6:15

Matthew Faithfull

19-Jul-07 6:15

I'd recommend never letting your on screen keyboard take the focus in the first place, have it behave as a persistent ontop popup. I've only done keyboard replacement stuff on WinCE where things are a little different but in that case you register your Software Input Panel as a special kind of control and Windows loads it and displays it for you. I guess there is probably something similar on whatever version of windows you're using and you should probably go that way to get it to behave properly. Also you need to insert your key presses into the keyboard chain as if you were operating a real keyboard, keybd_event() may or may not be right for this, otherwise IME keyboard handling and other stuff that might be in the keyboard chain like global hotkeys will not work. I'd check the documentation for Text Services Framework as a reasonable place to start.

Nothing is exactly what it seems but everything with seems can be unpicked.

How can I avoid the regsvr32.exe message box?

Max++19-Jul-07 4:26

Max++

19-Jul-07 4:26

I use these code for register my dll.

STARTUPINFO si;<br />
PROCESS_INFORMATION pi;<br />
<br />
ZeroMemory(&si, sizeof(si));<br />
si.cb = sizeof(STARTUPINFO);<br />
si.dwFlags = STARTF_USESHOWWINDOW;<br />
si.wShowWindow = SW_SHOW;<br />
ZeroMemory(&pi, sizeof(pi));<br />
sprintf(pszCmdLine, "regsvr32.exe \"%s\"", m_COMPath);<br />
if(CreateProcess(0, pszCmdLine, 0, 0, FALSE, CREATE_DEFAULT_ERROR_MODE | NORMAL_PRIORITY_CLASS, 0, 0, &si, &pi))<br />
{<br />
    CloseHandle(pi.hProcess);<br />
    CloseHandle(pi.hThread);<br />
}

It work fine and every time I register it will pop up message box from regsvr32.exe that tell about the registration successful.
But my I don't want to show this message in my program.
How can I avoid this message box?

Cedric Moonen19-Jul-07 4:35

Cedric Moonen

19-Jul-07 4:35

I just checked the help of regsvr32 but I never tried this myself.

I think if you pass "/s" as a commandline parameter to regsvr32, it will no display the msg box (silent mode). Just try it and tell me if that works, I would be interested.

Cédric Moonen
Software developer

Charting control [v1.2]

James R. Twine19-Jul-07 5:06

19-Jul-07 5:06

You are correct - the usage is:

Usage: regsvr32 [/u] [/s] [/n] [/i[:cmdline]] dllname
/u -	Unregister server
/s -	Silent; display no message boxes
/i -	Call DllInstall passing it an optional [cmdline]; when used with /u calls dll uninstall
/n -	do not call DllRegisterServer; this option must be used with /i

Peace!

Max++19-Jul-07 5:22

Max++

19-Jul-07 5:22

every thing work fine
Thanks a lot.

Paresh Chitte19-Jul-07 19:20

Paresh Chitte

19-Jul-07 19:20

You can take the help on command on command prompt by typing the command followed by "/?".

eg. dir /?

Regards,

Paresh.

Back to the roots

Rage19-Jul-07 2:58

Rage

19-Jul-07 2:58

Is this legal:

char *text;
text=""; // <- OK, I think, because only one character. Tell me if I am wrong.
text="hello"; // <- ?? And is this ok ? No strcpy of some sort needed ?

It's been a long time since i had to do with strings... (no alternative wanted, this is pure C without any libs)

http://www.readytogiveup.com/[^] - Do something special today.
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Re: Back to the roots

Nemanja Trifunovic19-Jul-07 3:15

Nemanja Trifunovic

19-Jul-07 3:15

It's legal. text first points to an empty string, and then to a "hello".

Just don't attempt to change the string that text is pointing to Smile | :)

Programming Blog
utf8-cpp

Re: Back to the roots

James R. Twine19-Jul-07 3:17

19-Jul-07 3:17

   IMHO, it is kinda legal - constant strings usually use constant memory, but you are assigning them to a non-const pointer.

   That code will compile on lots of compilers, if that means "legal" to you.

   Remember that a pointer and an array are two different things - a pointer points to a location in memory (which may or may not be valid), while an array IS a valid location in memory.

   Since your pointer is not set up (initially) to point to any valid memory, you could not strcpy(...) into it without risking a crash or other problems.

char *text;
text=""; // Valid
text="hello"; // Valid
// ------
char *text;
strcpy( text, "some string" ); // NOT Valid - no valid memory pointed to by <code>text</code>
// ------
char textarray[ 64 ];   // A valid array
char *text = textarray; // Valid, pointer now points to a valid array
 
strcpy( text, "some string" ); // Valid - string written into memory pointed to by <code>text</code> (which is the <code>textarray</code> array)
strcpy( textarray, "another string" ); // Valid - arrays "degrade"/"decay" into pointers, so the string is written into the <code>textarray</code> array

Peace!

Re: Back to the roots

Rage19-Jul-07 3:23

Rage

19-Jul-07 3:23

Oh yes, that's it. Thanks James.

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[RT]

Eytukan19-Jul-07 8:15

Eytukan

19-Jul-07 8:15

Related topic! Ofcourse another "root"

James, Imagine I'm initializing a char-string array statically like :

char chArray[MAX_LEN][MAX_LEN]={"ONE","TWO","THREE".....};
This being declared/defined globally makes no issues. Now I want this be wrapped up inside a class. and still wanting to do it in a single line. like the above. You cannot certainly init it inside a class' declaration.

and if you take this to the constructor, you would lose the declaration(data memeber!) inside the class. so how to go? Should I use refs inside the constructor? Unsure | :~

Best wishes to Rexx[^]

Re: [RT]

James R. Twine19-Jul-07 8:47