IVsObjectList2.UpdateCounter Method
Returns the current change counter for the tree list, and is used to indicate that the list contents have changed.
Namespace: Microsoft.VisualStudio.Shell.Interop
Assembly: Microsoft.VisualStudio.Shell.Interop.8.0 (in Microsoft.VisualStudio.Shell.Interop.8.0.dll)
Syntax
'宣言
Function UpdateCounter ( _
<OutAttribute> ByRef pCurUpdate As UInteger, _
<OutAttribute> ByRef pgrfChanges As UInteger _
) As Integer
'使用
Dim instance As IVsObjectList2
Dim pCurUpdate As UInteger
Dim pgrfChanges As UInteger
Dim returnValue As Integer
returnValue = instance.UpdateCounter(pCurUpdate, _
pgrfChanges)
int UpdateCounter(
out uint pCurUpdate,
out uint pgrfChanges
)
int UpdateCounter(
[OutAttribute] unsigned int% pCurUpdate,
[OutAttribute] unsigned int% pgrfChanges
)
function UpdateCounter(
pCurUpdate : uint,
pgrfChanges : uint
) : int
Parameters
pCurUpdate
Type: System.UInt32%[out] Pointer to the update counter of the current tree list.
pgrfChanges
Type: System.UInt32%[out] Specifies changes that have occurred. Values are taken from the _VSTREEITEMCHANGESMASK enumeration.
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:
HRESULT IVsObjectList2::UpdateCounter(
[out] ULONG *pCurUpdate,
out] VSTREEITEMCHANGESMASK *pgrfChanges
);
Returning an update counter greater than the last one cached by a given tree forces calls to GetItemCountand LocateExpandedList as needed. The pgrfChanges parameter contains values from the _VSTREEITEMCHANGESMASK enumeration. This enumeration is for future support of dynamic tree list modification. The capability is not currently enabled. While you can assign a value to pgrfChanges, the caller ignores the parameter.
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.