nf-rometadataresolution-roisapicontractmajorversionpresent.md

UID	title	tech.root	ms.date	targetos	description	helpviewer_keywords	req.assembly	req.construct-type	req.ddi-compliance	req.header	req.idl	req.include-header	req.irql	req.kmdf-ver	req.lib	req.dll	req.max-support	req.namespace	req.redist	req.target-min-winverclnt	req.target-min-winversvr	req.target-type	req.type-library	req.umdf-ver	req.unicode-ansi	topic_type	api_type	api_location	api_name	f1_keywords	dev_langs
NF:rometadataresolution.RoIsApiContractMajorVersionPresent	RoIsApiContractMajorVersionPresent (rometadataresolution.h)	WinRT	02/13/2020	Windows	Returns true or false to indicate whether the API contract with the specified name and major version number is present.	RoIsApiContractMajorVersionPresent		function		rometadataresolution.h					WindowsApp.lib	WinTypes.dll				Windows 10 [desktop apps \| UWP apps]	Windows Server 2019 [desktop apps \| UWP apps]	Windows				apiref		rometadataresolution.h	RoIsApiContractMajorVersionPresent	RoIsApiContractMajorVersionPresent rometadataresolution/RoIsApiContractMajorVersionPresent	c++

RoIsApiContractMajorVersionPresent function

-description

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

-parameters

-param name

Type: PCWSTR

The name of the API contract.

-param majorVersion

Type: UINT16

The major version number of the API contract.

-param present

Type: BOOL*

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

-returns

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).

-see-also