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virtual |
Tells whether an item can be replaced during drag-and-drop operation.
Override this method in a derived class and return FALSE, if the specified by nColumn item can't be replaced by item specified pNewItem.
The default implementation returns TRUE.
nColumn | Zero-based index of item's column. |
pNewItem | A pointer to a new grid item, which should replace the existing item at the specified by nColumn column, |