Method

GdkEventget_axis

Declaration [src] 

gboolean
gdk_event_get_axis (
  GdkEvent* event,
  GdkAxisUse axis_use,
  double* value
)

Description [src]

Extract the axis value for a particular axis use from an event structure.

To find out which axes are used, use gdk_device_tool_get_axes() on the device tool returned by gdk_event_get_device_tool().

Parameters

axis_use

Type: GdkAxisUse

The axis use to look for.

value

Type: double*

Location to store the value found.

The argument will be set by the function.

Return value

Type: gboolean

TRUE if the specified axis was found, otherwise FALSE.