IVsShell::IsPackageInstalled Method (Guid, Int32)

Visual Studio 2015

Determines whether a VSPackage identified by guidPackage is installed and registered with the system.

Namespace: Microsoft.VisualStudio.Shell.Interop
Assembly: Microsoft.VisualStudio.Shell.Interop (in Microsoft.VisualStudio.Shell.Interop.dll)

Syntax

C++

int IsPackageInstalled(
	[InAttribute] Guid% guidPackage,
	[OutAttribute] int% pfInstalled
)

Parameters

guidPackage: Type: System::Guid
[in] Unique identifier of the VSPackage.

pfInstalled: Type: System::Int32
[out, retval] true if the VSPackage is installed in the registry.

Return Value

Type: System::Int32

If the method succeeds, it returns S_OK. If it fails, it returns an error code.

Remarks

COM Signature

From vsshell.idl:

C++

HRESULT IVsShell::IsPackageInstalled(
   [in] REFGUID guidPackage,
   [out, retval] BOOL *pfInstalled
);

This method can be used to achieve advanced interactions between multiple VSPackages to determine whether they are loaded. It is recommended that you query for services that other VSPackages proffer.