CreateWindow() help!

i heard that if you have a WNDCLASS structure you can create many windows with that structure...but do they all need to have a different class name or can it the same...

Code:

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WNDCLASS wndclass;
...//other assignments
wndclass.lpszClassName = TEXT("WINPROG");

hwnd1 = CreateWindow(TEXT("WINPROG"),.....
hwnd2 = CreateWindow(TEXT("WINPROG"),.....
//same class names but different instances..is that possible?

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thanks

The windows all must have the same class name in order for them to belong to the same class.

what i dont get is "the same window class"...can you clarify that for me?...what is the window class name...like the same classification...(not C++ classes)....please explain

Quote:

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what i dont get is "the same window class"...can you clarify that for me?...what is the window class name...like the same classification...(not C++ classes)....please explain

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A window class is something you register with RegisterClass().
Once you have registered this class you can instanciate is as many times as you want.
Like:

Code:

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HWND myWindow;
WNDCLASSEX wnd;
wnd.lpszClassName = "myWindowClass";
wnd.cbSize = sizeof(WNDCLASSEX);
/* etc etc..initialize the fields of the WNDLCASSEX structure here.
..
*/
RegisterClassEx(&wnd); // here you register you class so you can use it in you app

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now this window class is registered with the name "myWindowClass" and you can create as many instances as you want by calling

Code:

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myWindow = CreateWindowEx(0, "myWindowClass",...... );

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so, basically, what you wrote first was correct, only don't
forget to register the class ( or you can use a predefined-class).
/btq :)