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The function also retrieves the value at a specified offset into the extra window memory. Retrieves information about the specified window. The function also retrieves the 32-bit ( long) value at the specified offset into the extra window memory. Retrieves the name of the class to which the specified window belongs. Retrieves the specified value from the WNDCLASSEX structure associated with the specified window. Retrieves the specified 32-bit ( long) value from the WNDCLASSEX structure associated with the specified window.

The GetClassInfo function does not retrieve a handle to the small icon. Retrieves information about a window class, including a handle to the small icon associated with the window class. The window procedure processes messages for all windows of that class and therefore controls their behavior and appearance.ĭemonstrates how to register a local window and use it to create a main window. Each window class has an associated window procedure shared by all windows of the same class. In This Section Nameĭiscusses window classes.

Every window is a member of a window class. This topic describes the types of window classes, how the system locates them, and the elements that define the default behavior of windows that belong to them.Ī window class is a set of attributes that the system uses as a template to create a window.

Download the new for windows Class of '09