Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

IApplicationAssociationRegistration::QueryAppIsDefaultAll method

Determines whether an application owns all of the registered default associations for a given application level. Not intended for use in Windows 8.

Syntax


HRESULT QueryAppIsDefaultAll(
  [in]  ASSOCIATIONLEVEL alQueryLevel,
  [in]  LPCWSTR          pszAppRegistryName,
  [out] BOOL             *pfDefault
);

Parameters

alQueryLevel [in]

Type: ASSOCIATIONLEVEL

One of the ASSOCIATIONLEVEL enumeration values that specifies the level of association, such as per-user or machine. This is typically AL_EFFECTIVE.

pszAppRegistryName [in]

Type: LPCWSTR

A pointer to a null-terminated Unicode string that specifies the registered name of the application.

pfDefault [out]

Type: BOOL*

When this method returns, contains TRUE if the application is the default for all association types at the specified ASSOCIATIONLEVEL; or FALSE otherwise.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Examples

This example demonstrates the use of IApplicationAssociationRegistration::QueryAppIsDefaultAll in an implementation of a fictitious Contoso browser.


HRESULT CheckContosoHasAllDefaults(__out BOOL* pfHasAllDefaults)
{
    IApplicationAssociationRegistration* pAAR;

    HRESULT hr = CoCreateInstance(CLSID_ApplicationAssociationRegistration,
                                  NULL,
                                  CLSCTX_INPROC,
                                  __uuidof(IApplicationAssociationRegistration),
                                  (void**)&pAAR);
    if (SUCCEEDED(hr))
    {
        hr = pAAR->QueryAppIsDefaultAll(AL_EFFECTIVE,
                                        L"Contoso.WebBrowser.1.06",
                                        pfHasAllDefaults);

        pAAR->Release();
    }

    return hr;
}

Requirements

Minimum supported client

Windows Vista [desktop apps only]

Minimum supported server

Windows Server 2008 [desktop apps only]

Header

Shobjidl.h

IDL

Shobjidl.idl

See also

IApplicationAssociationRegistration
Default Programs

 

 

Show:
© 2017 Microsoft