max_displacement_abs()
QNX SDP8.0Gestures Library ReferenceAPIDeveloperProgramming
Calculate the maximum displacement between two gesture events
Synopsis:
#include <gestures/types.h>
uint32_t max_displacement_abs(gesture_coords_t *coords1, gesture_coords_t *coords2)
Arguments:
- coords1
- A pointer to the first gesture event.
- coords2
- A pointer to the second gesture event.
Library:
libgesturesDescription:
This function returns the the maximum displacement, in pixels, between two gesture events. For example, if the absolute value of the difference between the x coordinates of the two gestures is greater than the absolute value of the difference between the y coordinates, the former is returned by the function. You will likely need this function only if you are defining your own gestures.
Returns:
The maximum displacement, in pixels.
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