WS_CUSTOM_TYPE_DESCRIPTION structure (webservices.h)

Represents a custom mapping between a C data type and an XML element.User-defined callbacks are invoked to do the actual reading and writing.

Syntax

typedef struct _WS_CUSTOM_TYPE_DESCRIPTION {
  ULONG                        size;
  ULONG                        alignment;
  WS_READ_TYPE_CALLBACK        readCallback;
  WS_WRITE_TYPE_CALLBACK       writeCallback;
  void                         *descriptionData;
  WS_IS_DEFAULT_VALUE_CALLBACK isDefaultValueCallback;
} WS_CUSTOM_TYPE_DESCRIPTION;

Members

size

The size of the custom type, in bytes.

alignment

The alignment requirement of the custom type. This must be a power of two between 1 and 8.

readCallback

A pointer to a callback which is invoked to read the type.

writeCallback

A pointer to a callback which is invoked to write the type.

descriptionData

This can be used to point to additional user-defined data specific to the type. It is optional and may be NULL.

The pointer to this data is passed to the WS_READ_TYPE_CALLBACK and the WS_WRITE_TYPE_CALLBACK. This allows the callback to access information that is specific to this particular usage of the callback.

isDefaultValueCallback

Requirements

Requirement	Value
Minimum supported client	Windows 7 [desktop apps only]
Minimum supported server	Windows Server 2008 R2 [desktop apps only]
Header	webservices.h