Commit 49448290 authored by Carlos Garnacho's avatar Carlos Garnacho

gdk: Document the behavior of device grabs on slave devices

This may be useful for certain applications, so document it explicitly.
parent 7995cd59
......@@ -110,6 +110,17 @@
* it is possible to get the source (slave) device that the event originated
* from via gdk_event_get_source_device().
* On a standard session, all physical devices are connected by default to
* the "Virtual Core Pointer/Keyboard" master devices, hence routing all events
* through these. This behavior is only modified by device grabs, where the
* slave device is temporarily detached for as long as the grab is held, and
* more permanently by user modifications to the device hierarchy.
* On certain application specific setups, it may make sense
* to detach a physical device from its master pointer, and mapping it to
* an specific window. This can be achieved by the combination of
* gdk_device_grab() and gdk_device_set_mode().
* In order to listen for events coming from devices
* other than a virtual device, gdk_window_set_device_events() must be
* called. Generally, this function can be used to modify the event mask
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