public static GetClassLongPtr ( |
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hWnd | Handle to the window and, indirectly, the class to which the window belongs. | |
nIndex | int | Specifies the value to retrieve. To retrieve a value from the extra class memory, specify the positive, zero-based byte offset of the value to be retrieved. Valid values are in the range zero through the number of bytes of extra class memory, minus eight; for example, if you specified 24 or more bytes of extra class memory, a value of 16 would be an index to the third integer. To retrieve any other value from the WNDCLASSEX structure, specify one of the following values. |
return |