Writing a new class

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#8144

From: Bob Piskac
Date: Fri, 19 Nov 2004 02:07

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I am trying to set some local variable with SetWindowLongPtr. I assumed each
time I create a window that I would have a new cbWndExtra pointer.  It
appears that I am wrong and there is just one pointer on the original class
that gets created. Am I right?

If I want a  local variable for each window, do I have to create a list of
variables on the main class and link it with the window handle of each
window?

Example

struct stWindowData{
   HWND hWnd,
   HBITMAP hBitmap;
  struct stWindowData *next;
};

Each time I create a window I need to add to my list in the WM_CREATE event?

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From: "Bob Piskac" <bob@pbsoftware.com>
Newsgroups: borland.public.cppbuilder.nativeapi
Subject: Writing a new class
Date: Thu, 18 Nov 2004 21:07:28 -0500
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