Function Macro

GObjectTYPE_CHECK_INSTANCE_CAST

Declaration

#define G_TYPE_CHECK_INSTANCE_CAST (
  instance,
  g_type,
  c_type
)

Description

Checks that instance is an instance of the type identified by g_type and issues a warning if this is not the case. Returns instance casted to a pointer to c_type.

No warning will be issued if instance is NULL, and NULL will be returned.

This macro should only be used in type implementations.

This function is not directly available to language bindings.

Parameters

instance

Type: -

Location of a GTypeInstance structure.

g_type

Type: -

The type to be returned.

c_type

Type: -

The corresponding C type of g_type.