IApplicationAssociationRegistration::SetAppAsDefault method (shobjidl_core.h)
Sets an application as the default for a given extension or protocol, provided that the application's publisher matches the current default's. For more information, see Default Programs. Not intended for use in Windows 8.
Syntax
HRESULT SetAppAsDefault(
LPCWSTR pszAppRegistryName,
LPCWSTR pszSet,
[in] ASSOCIATIONTYPE atSetType
);
Parameters
pszAppRegistryName
pszSet
[in] atSetType
Type: ASSOCIATIONTYPE
One of the ASSOCIATIONTYPE enumeration values that specifies the type of the application named in extOrUriScheme, such as file name extension or MIME type.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code. In particular, if the application's publisher doesn't match the default's, this method returns E_ACCESSDENIED.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | shobjidl_core.h (include Shobjidl.h) |