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mIRC DLL #137626 16/12/05 02:26 PM
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greeny Offline OP
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Hello,

I'm currently trying to write a function that gets the HWND of the window currently active in mIRC. It is supposed to work like $active, only return the HWND instead of the window name.

I have already messed around with GetForegroundWindow(), GetFocus(), GetActiveWindow(), SendMessage(<mdi hwnd>,WM_MDIGETACTIVE,0,0) but I can't seem to find a proper solution.

Here's what I have right now (it's Delphi, but if you can tell me code in C/C++ it's no problem either wink):

Code:
function getActiveHwnd(mwnd,awnd:hwnd;data,parms:pchar;show,nopause:boolean):integer;stdcall;
    var tmp,res:hwnd;
    begin
      tmp:=strtoint(gettok(data,' ',1));          // sets tmp to the mdi hwnd (passed onto the dll via $window(-3).hwnd)
      if (GetForegroundWindow()=mwnd) then res:=SendMessage(tmp,WM_MDIGETACTIVE,0,0)
      else res:=GetForegroundWindow();
      strcopy(data,pchar(inttostr(res)));
      result:=3;
end;


It basically works, the only problem is that it sometimes returns the wrong HWND if a desktop window is active (e.g. opened with /window -d).

Can you tell me what I'm doing wrong? I've been messing with this for ages and can't figure out the problem.

Thanks in advance.

Edit: oh yes, don't tell me to use $window($active).hwnd, because this doesn't work when, for example, multiple DCC sends/gets/chats with the same nick are open, which is the point of this DLL.

Re: mIRC DLL #137627 16/12/05 02:53 PM
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have you tried GetTopWindow( ) ?

Re: mIRC DLL #137628 16/12/05 03:00 PM
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greeny Offline OP
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No, I will try that out, thanks!

Edit: GetTopWindow() only works if the window is an MDI window, which leaves me with the problem of desktopped windows.

Last edited by greeny; 16/12/05 03:06 PM.
Re: mIRC DLL #137629 16/12/05 03:37 PM
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ClickHeRe Offline
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From the help file I don't read any MDI related thing.

"The GetTopWindow function examines the Z order of the child windows associated with the specified parent window and retrieves a handle to the child window at the top of the Z order."

If you give the command the mIRC HWND it should return the topmost window which is connected down to the parent mIRC from the tree of windows.

Now desktop windows do not belong to mIRC so you won't be able to get those through any active window command that uses mIRC as a parent. If you never did the experience, if you have a top desktop dialog and you return $active with a timer in mIRC, it will give you the most top window in mIRC, not the actual dialog.

I think mIRC's $active gives what GetTopWindow( ) returns using the mIRC HWND as the parameter. This should give the top most Z order window be it a @window, dialog or any other window MDI attached or not to mIRC.

GetTopWindow( ) will get you the topmost Z ordered window from any parent. If you use the desktop window as a parent which is the root parent window of the system, then you could get the HWND of any window in the whole system which is topmost at any instant.

Code:
Desktop
 |- mIRC
   |- MDI
     |- #channel
   |- @window
   |- dialog
 ...

Re: mIRC DLL #137630 16/12/05 03:56 PM
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greeny Offline OP
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Actually, you're right in what you say. I accidently passed the HWND of the MDI window to the function, sorry.

Either way, it still doesn't work. GetTopWindow(mwnd) now only returns one single number, no matter which window is the active one. frown

Code:
function getactivehwnd(mwnd,awnd:hwnd;data,parms:pchar;show,nopause:boolean):integer;stdcall;
begin
  strcopy(data,pchar(inttostr(GetTopWindow(mwnd))));
  result:=3;
end;

Re: mIRC DLL #137631 16/12/05 05:16 PM
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the HWND is a hex number, so if you want to convert that to text you can use something like wsprintf( data, "%X", HWND );

Re: mIRC DLL #137632 16/12/05 05:21 PM
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greeny Offline OP
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It's not a HEX number, at least not in Delphi. If it was, inttostr() would fail.

Re: mIRC DLL #137633 16/12/05 05:39 PM
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any number is a number, whatever representation you want to display it in. All I was saying is normally HWND params are displayed as HEX strings. Try a $window().hwnd and you should see the HEX representation the same way you do in Spy++ for example : 000C026E.

I don't quite understand why you say that the last part doesn't work. I think you didn't define the problem correctly in your first statement or I'm dumb and don't understand why GetTopWindow( MIRC HWND ) fails to give you the topmost mIRC window thus the "active" one in mIRC. You'll never be able to get from that last command the active window if it's a desktop dialog or @window since it's not attached to mIRC. And I'm pretty sure $active returns the topmost window in mIRC if the "active" one on the system is a mIRC desktop dialog. Now, I don't have mIRC here to test, I'm at work.

Re: mIRC DLL #137634 16/12/05 05:55 PM
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greeny Offline OP
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Well, I really don't know why it doesn't work.

All I have is this function that returns GetTopWindow(mwnd).

Then I try it in mIRC:
//echo -a $dll(test.dll,getactivehwnd,)

And it returns the same number every time I echo, no matter what window I am typing it in.

Re: mIRC DLL #137635 16/12/05 05:59 PM
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make sure you grabbed the correct mIRC Hwnd from LOADINFO.

I can test this thing tonight when I get home if you can't get it to work to see if it really works.

Re: mIRC DLL #137636 16/12/05 06:05 PM
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greeny Offline OP
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I even tried writing the mIRC hwnd manually into the source :P
Still doesn't work.

Just so you know, it's not the first DLL I code, but I'm really stuck on this one.

Thanks for your help.

Re: mIRC DLL #137637 17/12/05 04:27 PM
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greeny Offline OP
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No more ideas? frown

Re: mIRC DLL #137638 17/12/05 10:15 PM
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I'm sorry I haven't testet yet I was occupied yesterday.

I will try to see if I can get it to work tomorrow.

You can come by on IRC and we can talk about it.

Re: mIRC DLL #137639 19/12/05 06:17 PM
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greeny Offline OP
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Again, thank you very much ClickHeRe, I finally got it to work! smile