Public Member Functions | |
virtual void | Refresh (PSI psi, const RectF &rect)=0 |
A callback function used to refresh a specified region for PSI. More... | |
virtual void | Release ()=0 |
A callback function used to release current PSICallback object itself. More... | |
This class represents a callback object for refreshing a region for PSI. All the pure virtual functions in this class are used as callback functions and should be implemented by user. An implemented PSICallback object can be set to a PSI object by function PSI::SetCallback.
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pure virtual |
A callback function used to release current PSICallback object itself.