wayland::server::region_t − region interface
#include <wayland−server−protocol.hpp>
Inherits wayland::server::resource_t.
std::function<
void()> & on_destroy ()
destroy region
std::function< void(int32_t, int32_t, int32_t,
int32_t)> & on_add ()
add rectangle to region
std::function< void(int32_t, int32_t, int32_t,
int32_t)> & on_subtract ()
subtract rectangle from region
bool proxy_has_object () const
Check whether this wrapper actually wraps an object.
void post_no_memory () const
uint32_t get_id () const
client_t get_client () const
unsigned int get_version () const
std::string get_class ()
region interface
A region object describes an area.
Region objects are used to describe the opaque and input regions of a surface.
Definition at line 4043 of file wayland−server−protocol.hpp.
Retrieve the interface name (class) of a resource object.
Returns
Interface name of the resource object.
Get the associated client
Returns
the client that owns the resource.
Get the internal ID of the resource
Returns
the internal ID of the resource
Get interface version
Returns
Interface version this resource has been constructed with.
add rectangle to region
Parameters
x region-local x
coordinate
y region-local y coordinate
width rectangle width
height rectangle height
Add the specified rectangle to the region.
Definition at line 3048 of file wayland−server−protocol.cpp.
destroy region Destroy the region. This will invalidate the object ID.
Definition at line 3042 of file wayland−server−protocol.cpp.
subtract rectangle from region
Parameters
x region-local x
coordinate
y region-local y coordinate
width rectangle width
height rectangle height
Subtract the specified rectangle from the region.
Definition at line 3054 of file wayland−server−protocol.cpp.
Post ’not enough memory’ error to the client
If the compositor has not enough memory to fulfill a certail request of the client, this function can be called to notify the client of this circumstance.
Check whether this wrapper actually wraps an object.
Returns
true if there is an underlying object, false if this wrapper is empty
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