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Called when a method is about to have the parameters added.
Namespace:  Microsoft.VisualStudio.Shell.Interop
Assembly:  Microsoft.VisualStudio.Shell.Interop.8.0 (in Microsoft.VisualStudio.Shell.Interop.8.0.dll)
Syntax
'Declaration
Function OnBeforeAddParams ( _
    pHier As IVsHierarchy, _
    itemid As UInteger, _
    lpszRQName As String, _
    cParams As UInteger, _
    rgszParamIndexes As UInteger(), _
    rgszRQTypeNames As String(), _
    rgszParamNames As String(), _
    <OutAttribute> ByRef prgAdditionalCheckoutVSITEMIDs As Array _
) As Integer
int OnBeforeAddParams(
    IVsHierarchy pHier,
    uint itemid,
    string lpszRQName,
    uint cParams,
    uint[] rgszParamIndexes,
    string[] rgszRQTypeNames,
    string[] rgszParamNames,
    out Array prgAdditionalCheckoutVSITEMIDs
)
int OnBeforeAddParams(
    [InAttribute] IVsHierarchy^ pHier, 
    [InAttribute] unsigned int itemid, 
    [InAttribute] String^ lpszRQName, 
    [InAttribute] unsigned int cParams, 
    [InAttribute] array<unsigned int>^ rgszParamIndexes, 
    [InAttribute] array<String^>^ rgszRQTypeNames, 
    [InAttribute] array<String^>^ rgszParamNames, 
    [OutAttribute] Array^% prgAdditionalCheckoutVSITEMIDs
)
abstract OnBeforeAddParams : 
        pHier:IVsHierarchy * 
        itemid:uint32 * 
        lpszRQName:string * 
        cParams:uint32 * 
        rgszParamIndexes:uint32[] * 
        rgszRQTypeNames:string[] * 
        rgszParamNames:string[] * 
        prgAdditionalCheckoutVSITEMIDs:Array byref -> int 
function OnBeforeAddParams(
    pHier : IVsHierarchy, 
    itemid : uint, 
    lpszRQName : String, 
    cParams : uint, 
    rgszParamIndexes : uint[], 
    rgszRQTypeNames : String[], 
    rgszParamNames : String[], 
    prgAdditionalCheckoutVSITEMIDs : Array
) : int
Parameters
- pHier
 Type: Microsoft.VisualStudio.Shell.Interop.IVsHierarchy
 A hierarchy of the designer-owned item associated with the file that the language service changed.
- itemid
 Type: System.UInt32
 The VSITEMID of the designer-owned item associated with the file that the language service is about to change.
- lpszRQName
 Type: System.String
 A method that has parameters added.
- cParams
 Type: System.UInt32
 The number of parameters added.
- rgszParamIndexes
 Type: array<System.UInt32[]
 The indexes of the new parameters.
- rgszRQTypeNames
 Type: array<System.String[]
 The types of the new parameters.
- rgszParamNames
 Type: array<System.String[]
 The names of the new parameters.
- prgAdditionalCheckoutVSITEMIDs
 Type: System.Array%
 An array of VSITEMIDs to be checked out during the add parameter operation, if the IVsRefactorNotify implementer needs to modify additional files as a part of the refactoring operation. Implementers must return the VSITEMID of the designer-owned item, if that file is modified during the refactoring operation.
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 vsshell80.idl:
[C++]
HRESULT OnBeforeAddParams(
    [in] IVsHierarchy *pHier,
    [in] VSITEMID itemid,
    [in] LPCOLESTR lpszRQName,
    [in] ULONG cParams,
    [in, size_is(cParams)] ULONG rgszParamIndexes[],
    [in, size_is(cParams)] LPCOLESTR rgszRQTypeNames[],
    [in, size_is(cParams)] LPCOLESTR rgszParamNames[],
    [out, retval] SAFEARRAY(VSITEMID)* prgAdditionalCheckoutVSITEMIDs);
.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.