Method
Gdk.Device.get_surface_at_position
Declaration [src]
GdkSurface*
gdk_device_get_surface_at_position (
GdkDevice* device,
double* win_x,
double* win_y
)
Description [src]
Obtains the surface underneath device, returning the location of the
device in win_x and win_y
Returns NULL if the surface tree under device is not known to GDK
(for example, belongs to another application).
Parameters
win_x |
double* |
return location for the X coordinate of the device location,
relative to the surface origin, or |
|
| Direction: out | |
| Ownership of the data is transferred to the callee | |
win_y |
double* |
return location for the Y coordinate of the device location,
relative to the surface origin, or |
|
| Direction: out | |
| Ownership of the data is transferred to the callee |
Return value
Returns: GdkSurface |
|
the |
|
| Ownership is not transferred to the caller | |
Can be NULL | |