Two Windows, One app

[Jim Seekamp]

I'm trying to integrate a second window that can't be a dialog box
into an application. It seems it has to have it's own class. Is
it ok for one app to have two classes??

Best Regards

Jim


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Jim Seekamp

[Michael Mattias]

Sure, you can have lots of different window classes in any application.

But - it is not necessary for each window created by an application to have its won class; it *is* necessary, though, that your window procedure be able to handle messages from more than one window (the first parameter of the procedure) and keep any data separate.

If you check out the PBNOTE sample supplied by PowerBASIC, you will see how to keep data separate for as many windows are created within the same class.

MCM

[Jules Marchildon]

Jim,

Do a search in the Source Code forum, I posted a Multiple Window
example that is very close to what you are looking for. It does not
use the MDI spec like PBNOTE.

If you have any questions about it, just let me know I'll be glad to
help you out with it.

Regards,
Jules

[Steve Hutchesson]

Jim,

If you need to, you can have as many window classes registered as you need,
its the correct way to do it. Depending on what you require, you can use
the existing WndProc to process the messages if you wish to use the same
registered window class as the main app, you just need to be careful what
you put in the WM_CREATE message or you will get it in both windows.

Your adjustments are the window styles that you can normally combine that
are documented under CreateWindow() in win32.hlp and of course you use the
window handle from the parent in the second window. Depending on how you
combine the styles, you can have the window contained within the parent's
client area or you can have it free floating, depending on what you need.

This technique gives you the most adjustments when using a child window and
you can get some interesting results with it. There are the extended styles
listed in CreateWindowEx() as well if you want to make a tool window or a
window that is always on top.

Regards,

[email protected]

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[Jim Seekamp]

Thanks for the responses!
I always used dialogs after the main window up until now, so I
wasn't sure. I've implemented the window and it works great!
Thanks again.

Best Regards

Jim


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Jim Seekamp

[Charles Dietz]

Jim,

The code below shows two windows using DDT. Maybe, this will help
a little. Hope I didn't misunderstand your question, and what this
topic is about.

Jules, I couldn't find your example in the source code. I searched
under your name in that forum, but couldn't identify which topic you
were referring to.

#COMPILE EXE
#DIM ALL
#INCLUDE "win32api.INC"
DECLARE CALLBACK FUNCTION wndProc()
GLOBAL endWnd1 AS BYTE

FUNCTION PBMAIN
   LOCAL hWnd1 AS LONG, hWnd2 AS LONG, result AS LONG
   DIALOG NEW 0, "Test1", , , 200, 85, %WS_SYSMENU + %WS_CAPTION TO hWnd1
   DIALOG NEW 0, "Test2", , , 150, 120, %WS_SYSMENU + %WS_CAPTION TO hWnd2
   DIALOG SHOW MODELESS hWnd1, CALL wndProc TO result
   DIALOG SHOW MODAL hWnd2
   DO
      DIALOG DOEVENTS
   LOOP UNTIL endWnd1
END FUNCTION

CALLBACK FUNCTION wndProc()
   SELECT CASE CBMSG
   CASE %WM_DESTROY
        endWnd1 = 1
   END SELECT
END FUNCTION

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[This message has been edited by Charles Dietz (edited September 01, 2000).]

[Jim Seekamp]

Charles; actually I was talking about creating a second window
(as opposed to dialog) using createwindow and registering it's
own class and message loop. I don't use DDT, but thanks
for the response anyways.

Best Regards

Jim


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Jim Seekamp

[Jules Marchildon]

Charles,

Sorry, the Source code forum only goes back 1 year. Drop me an email and
I will forward you a copy. If you have Borje POFFS program and PB archives
you will find it in there.

Regards, Jules mailto:[email protected][email protected]</A>

[Charles Dietz]

Thanks Jules,

I found it in the source code archives.


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