C++
virtual bool onMouseWheel( UINT nFlags, short zDelta, POINT pt ) = 0;
Description
This function defines the mouse wheel message handler.
Returns true if mouse wheel scrolling is enabled.
Parameters
| Parameters | Description |
|---|---|
| nFlags | Input whether various virtual keys are down |
| zDelta | Input distance rotated |
| pt | Input the x- and y-coordinates of the cursor |