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RoIsApiContractPresent function (rometadataresolution.h)

  • Article

Returns true or false to indicate whether the API contract with the specified name and major and minor version number is present.

Syntax

HRESULT RoIsApiContractPresent(
  PCWSTR name,
  UINT16 majorVersion,
  UINT16 minorVersion,
  BOOL   *present
);

Parameters

name

Type: PCWSTR

The name of the API contract.

majorVersion

Type: UINT16

The major version number of the API contract.

minorVersion

Type: UINT16

The minor version number of the API contract.

present

Type: BOOL*

True if the specified API contract is present; otherwise, false.

Return value

Type: HRESULT

This function can return one of these values.

Return code Description
S_OK
 The specified API contract is valid and is present.
RO_E_METADATA_NAME_NOT_FOUND
 The input string is not an API contract defined in any examined .winmd file.
RO_E_METADATA_NAME_IS_NAMESPACE
 The input string is an existing namespace rather than an API contract name.

Remarks

This function was introduced in Windows 10, version 1809 (build 17763).

Requirements

Requirement Value
Minimum supported client Windows 10 [desktop apps | UWP apps]
Minimum supported server Windows Server 2019 [desktop apps | UWP apps]
Target Platform Windows
Header rometadataresolution.h
Library WindowsApp.lib
DLL WinTypes.dll