GdkSurfaceget_device_position

gboolean
gdk_surface_get_device_position (
  GdkSurface* surface,
  GdkDevice* device,
  double* x,
  double* y,
  GdkModifierType* mask
)

Obtains the current device position and modifier state.

The position is given in coordinates relative to the upper left corner of surface.

`device`	`GdkDevice`
	Pointer `GdkDevice` to query to.
	The data is owned by the caller of the function.
`x`	`double*`
	Return location for the X coordinate of `device`.
	The argument will be set by the function.
	The argument can be `NULL`.
`y`	`double*`
	Return location for the Y coordinate of `device`.
	The argument will be set by the function.
	The argument can be `NULL`.
`mask`	`GdkModifierType`
	Return location for the modifier mask.
	The argument will be set by the function.
	The argument can be `NULL`.
	The instance takes ownership of the data, and is responsible for freeing it.

Returns:	`gboolean`
	`TRUE` if the device is over the surface.