IVsPackage.QueryClose Method

Enables a VSPackage that requires user intervention to abort the shutdown process.

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


Function QueryClose ( _
    <OutAttribute> ByRef pfCanClose As Integer _
) As Integer
int QueryClose(
    out int pfCanClose
int QueryClose(
    [OutAttribute] int% pfCanClose
abstract QueryClose : 
        pfCanClose:int byref -> int 
function QueryClose(
    pfCanClose : int
) : int


  • pfCanClose
    Type: System.Int32%
    [out] Flag indicating whether the VSPackage can close. Is set to true if the VSPackage can close.

Return Value

Type: System.Int32
If the method succeeds, it returns S_OK. If it fails, it returns an error code.


This method returns true if the VSPackage can close. If false, the environment can then cancel the exit procedure.

This method is called by the IDE only during manual shutdowns. Automated shutdowns, such as when installing critical updates, call the get_CanClose method instead.

COM Signature

From vsshell.idl:

HRESULT IVsPackage::QueryClose(
   [out] BOOL *pfCanClose

.NET Framework Security

See Also


IVsPackage Interface

Microsoft.VisualStudio.Shell.Interop Namespace