IVsRunningDocumentTable2.FindAndLockDocumentEx Method

Artikel
12/17/2007

Locates a document in the RDT using the document file name, then obtains a read or edit lock on that document.

Namespace: Microsoft.VisualStudio.Shell.Interop
Assembly: Microsoft.VisualStudio.Shell.Interop.8.0 (in Microsoft.VisualStudio.Shell.Interop.8.0.dll)

Syntax

'Declaration
Function FindAndLockDocumentEx ( _
    grfRDTLockType As UInteger, _
    pszMkDocument As String, _
    pHierPreferred As IVsHierarchy, _
    itemidPreferred As UInteger, _
    <OutAttribute> ByRef ppHierActual As IVsHierarchy, _
    <OutAttribute> ByRef pitemidActual As UInteger, _
    <OutAttribute> ByRef ppunkDocDataActual As IntPtr, _
    <OutAttribute> ByRef pdwCookie As UInteger _
) As Integer
'Usage
Dim instance As IVsRunningDocumentTable2
Dim grfRDTLockType As UInteger
Dim pszMkDocument As String
Dim pHierPreferred As IVsHierarchy
Dim itemidPreferred As UInteger
Dim ppHierActual As IVsHierarchy
Dim pitemidActual As UInteger
Dim ppunkDocDataActual As IntPtr
Dim pdwCookie As UInteger
Dim returnValue As Integer

returnValue = instance.FindAndLockDocumentEx(grfRDTLockType, _
    pszMkDocument, pHierPreferred, itemidPreferred, _
    ppHierActual, pitemidActual, ppunkDocDataActual, _
    pdwCookie)

int FindAndLockDocumentEx(
    uint grfRDTLockType,
    string pszMkDocument,
    IVsHierarchy pHierPreferred,
    uint itemidPreferred,
    out IVsHierarchy ppHierActual,
    out uint pitemidActual,
    out IntPtr ppunkDocDataActual,
    out uint pdwCookie
)

int FindAndLockDocumentEx(
    [InAttribute] unsigned int grfRDTLockType, 
    [InAttribute] String^ pszMkDocument, 
    [InAttribute] IVsHierarchy^ pHierPreferred, 
    [InAttribute] unsigned int itemidPreferred, 
    [OutAttribute] IVsHierarchy^% ppHierActual, 
    [OutAttribute] unsigned int% pitemidActual, 
    [OutAttribute] IntPtr% ppunkDocDataActual, 
    [OutAttribute] unsigned int% pdwCookie
)

function FindAndLockDocumentEx(
    grfRDTLockType : uint, 
    pszMkDocument : String, 
    pHierPreferred : IVsHierarchy, 
    itemidPreferred : uint, 
    ppHierActual : IVsHierarchy, 
    pitemidActual : uint, 
    ppunkDocDataActual : IntPtr, 
    pdwCookie : uint
) : int

Parameters

grfRDTLockType
Type: System.UInt32

[in] Flags whose values are taken from the _VSRDTFLAGS enumeration.

pszMkDocument
Type: System.String

[in] Path to the located document.

pHierPreferred
Type: Microsoft.VisualStudio.Shell.Interop.IVsHierarchy

[out, optional] Returns preferred the IVsHierarchy interface for the located document.

itemidPreferred
Type: System.UInt32

[out, optional] Returns an item identifier of the located document. This is a unique identifier or it can be one of the following values: VSITEMID_NIL, VSITEMID_ROOT, or VSITEMID_SELECTION.

ppHierActual
Type: Microsoft.VisualStudio.Shell.Interop.IVsHierarchy%

[out, optional] Returns the actual IVsHierarchy interface for the located document.

pitemidActual
Type: System.UInt32%

[out, optional] Returns an item identifier of the located document. This is a unique identifier or it can be one of the following values: VSITEMID_NIL, VSITEMID_ROOT, or VSITEMID_SELECTION.

ppunkDocDataActual
Type: System.IntPtr%

[out, optional] Returns the IUnknown interface.

pdwCookie
Type: System.UInt32%

[out, optional] Returns an abstract value for the document.

Return Value

Type: System.Int32

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

Remarks

FindAndLockDocumentEx This method is similar to FindAndLockDocument but also allows the specification of a preferred hierarchy/itemid pair for the document in case an RDT_EditLock is desired and the document is currently registered with only a RDT_ReadLock with no hierarchy/itemid assigned. In this case FindAndLockDocument would have returned E_UNEXPECTED. This method will not register the document in the Running Document Table if it is not currently registered.

COM Signature

From vsshell80.idl:

HRESULT FindAndLockDocumentEx(
    [in] VSRDTFLAGS grfRDTLockType,
    [in] LPCOLESTR pszMkDocument,
    [in] IVsHierarchy *pHierPreferred,
    [in] VSITEMID itemidPreferred,
    [out] IVsHierarchy **ppHierActual,
    [out] VSITEMID *pitemidActual,
    [out] IUnknown **ppunkDocDataActual,
    [out] VSCOOKIE *pdwCookie
);

Permissions

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.

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