Function Macro

GObjectTYPE_CHECK_INSTANCE

Declaration 

#define G_TYPE_CHECK_INSTANCE (
  instance
)

Description

Checks if instance is a valid GTypeInstance structure, otherwise issues a warning and returns FALSE. NULL is not a valid GTypeInstance.

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.