struct CvTypeInfo

Overview

Type information. More…

#include <types_c.h>

struct CvTypeInfo
{
    // fields

    CvCloneFunc clone;
    int flags;
    int header_size;
    CvIsInstanceFunc is_instance;
    struct CvTypeInfo* next;
    struct CvTypeInfo* prev;
    CvReadFunc read;
    CvReleaseFunc release;
    const char* type_name;
    CvWriteFunc write;
};

Detailed Documentation

Type information.

The structure contains information about one of the standard or user-defined types. Instances of the type may or may not contain a pointer to the corresponding CvTypeInfo structure. In any case, there is a way to find the type info structure for a given object using the cvTypeOf function. Alternatively, type info can be found by type name using cvFindType, which is used when an object is read from file storage. The user can register a new type with cvRegisterType that adds the type information structure into the beginning of the type list. Thus, it is possible to create specialized types from generic standard types and override the basic methods.

Fields

CvCloneFunc clone

creates a copy of the object

int flags

not used

int header_size

sizeof(CvTypeInfo)

CvIsInstanceFunc is_instance

checks if the passed object belongs to the type

struct CvTypeInfo* next

next registered type in the list

struct CvTypeInfo* prev

previous registered type in the list

CvReadFunc read

reads object from file storage

CvReleaseFunc release

releases object (memory etc.)

const char* type_name

type name, written to file storage

CvWriteFunc write

writes object to file storage