Reading window title from external app

Development
#1

Hello guys, Can you tell me which function you are using to create your Gui, cause I never manage to catch the full main windows title. I am developping an automatic tagger program in early stage at the moment it works in a standalone mode for now but I need to catch the full filename of the actual selected file. There is no hotkey assigned for file properties and I don't want to force users to add an extra tag containing the filemane ( which would be a pain in the b...on the user side).

In summary your window title gets truncated when calling GetWindowTextW with a returned string set to 1024 bytes ( or 2048 if unicode).

Thank you.

#2

I'm just using SetWindowText, nothing special.

#3

You call getwindowtextlength frist?
You set up your recieve Buffer correctly? (remember, doublebyte per char on unicode)
You read hint's at msdn?

Get/SetWindowText/Length in all current unicode languages call W functions.

#4

GetWindowText will return the same trunctated length. the exact same length with getwindowtextlength, and of course I've set the Lptrstring capacity to 1024 combined to IsWindowUnicode().

and of course I did read the manual and always did it since I first starting coding on z80 aged of 8 then 68k and so on. When You had coded on a commodore Amiga, you know those things.

Just to be sure are you creating the window using this ? :

if(IsWindowUnicode(hWnd))  
  return DefWindowProcW(hWnd, uMsg, wParam, lParam);  
else  
  return DefWindowProcA(hWnd, uMsg, wParam, lParam);

depending on this answer, this would be my last attempt,
 I am using my own tag reading function and audiogenie.dll  as well . Not only targetting win32 code so mp3tag is not essential for my project.

thanks
#5

well, comodore and amiga don't know about multibyte strings - same as my early DOS versions running on my old 80286 :wink:
Didn't like to diss you :wink:

Just to find out what's going wrong:

Did you try to read windowtext inside an simple byte/char buffer array to verify if you really don't receive full text or may be a problem of your buffer datatype.
Check if received string is null byte terminated.

Try something like that (tested with winamp, working fine)
set up an buffer
array[0.. length * sizeof(char) + 1] of byte
or
array[0.. length + 1] of char

Receive WindowText to @buf[0]
Copy (Decode) from buffer to string using an Encoding class