IVsShell.IsPackageInstalled Method

Article
03/06/2013

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

'Declaration
Function IsPackageInstalled ( _
    ByRef guidPackage As Guid, _
    <OutAttribute> ByRef pfInstalled As Integer _
) As Integer

int IsPackageInstalled(
    ref Guid guidPackage,
    out int pfInstalled
)

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

abstract IsPackageInstalled : 
        guidPackage:Guid byref * 
        pfInstalled:int byref -> int

function IsPackageInstalled(
    guidPackage : Guid, 
    pfInstalled : int
) : int

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:

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.

.NET Framework Security

Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.