Functions for reading accumulated scroll wheel input. More...

Collaboration diagram for Mouse Scroll API:

Functions
BGI_API void BGI_CALL	wxbgi_get_scroll_delta (double dx, double dy)
	Reads and atomically clears the accumulated scroll deltas.

Detailed Description

Functions for reading accumulated scroll wheel input.

Function Documentation

◆ wxbgi_get_scroll_delta()

BGI_API void BGI_CALL wxbgi_get_scroll_delta	(	double *	dx,
		double *	dy
	)

Reads and atomically clears the accumulated scroll deltas.

Returns the total horizontal and vertical scroll since the last call. Both deltas are reset to 0.0 after this call. Either output pointer may be NULL if that axis is not needed.

Parameters

dx	Receives accumulated horizontal scroll (positive = right).
dy	Receives accumulated vertical scroll (positive = up/forward).