IVsPreviewChangesList::UpdateCounter Method (UInt32, UInt32)

Visual Studio 2015

Updates the current change counter and returns whether any changes have been made to the preview list and if so, what kind of changes.

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

Syntax

C++

int UpdateCounter(
	[OutAttribute] unsigned int% pCurUpdate,
	[OutAttribute] unsigned int% pgrfChanges
)

Parameters

pCurUpdate: Type: System::UInt32
[out] Returns the current update counter.

pgrfChanges: Type: System::UInt32
[out] Returns a combination of values from the _VSTREEITEMCHANGESMASK enumeration specifying what kind of changes have been made since the last time this method was called.

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 IVsPreviewChangesList::UpdateCounter(

[out] ULONG *pCurUpdate,

[out] VSTREEITEMCHANGESMASK *pgrfChanges

);

This method updates the current change counter each time it is called and returns that counter. This method can also return what kind of changes were made.

C++: you can set the pCurUpdate and pgrfChanges parameters to NULL pointers to simply force an update of the counter.