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The following table shows the window class functions, with a description of the purpose of each.
| Programming element | Description |
|---|---|
| GetClassInfo | This function retrieves information about a window class. |
| GetClassLong | This function retrieves the specified 32-bit (LONG) value from the WNDCLASS structure associated with the specified window. |
| GetClassName | This function retrieves the name of the class to which the specified window belongs. |
| GetWindowLong | This function retrieves information about the specified window. |
| RegisterClass | This function registers a window class for subsequent use in calls to the CreateWindow or CreateWindowEx function. |
| SetClassLong | This function replaces the specified 32-bit (LONG) value at the specified offset into the extra class memory of the WNDCLASS structure for the class to which the specified window belongs. |
| SetWindowLong | This function changes an attribute of the specified window. |
| UnregisterClass | This function removes a window class, freeing the memory required for the class. |
| UnregisterHotKey | This function frees a hot key previously registered by the calling thread. |
See Also
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