IVsHiddenTextClient.OnHiddenRegionChange Method

Called when the user expands or collapses a hidden region.

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

Syntax

'Declaration
Sub OnHiddenRegionChange ( _
    pHidReg As IVsHiddenRegion, _
    EventCode As HIDDEN_REGION_EVENT, _
    fBufferModifiable As Integer _
)

void OnHiddenRegionChange(
    IVsHiddenRegion pHidReg,
    HIDDEN_REGION_EVENT EventCode,
    int fBufferModifiable
)

void OnHiddenRegionChange(
    [InAttribute] IVsHiddenRegion^ pHidReg, 
    [InAttribute] HIDDEN_REGION_EVENT EventCode, 
    [InAttribute] int fBufferModifiable
)

abstract OnHiddenRegionChange : 
        pHidReg:IVsHiddenRegion * 
        EventCode:HIDDEN_REGION_EVENT * 
        fBufferModifiable:int -> unit 

function OnHiddenRegionChange(
    pHidReg : IVsHiddenRegion, 
    EventCode : HIDDEN_REGION_EVENT, 
    fBufferModifiable : int
)

Parameters

• pHidReg
  Type: Microsoft.VisualStudio.TextManager.Interop.IVsHiddenRegion
  [in] Pointer to a hidden region object, IVsHiddenRegion being expanded or collapsed.

• EventCode
  Type: Microsoft.VisualStudio.TextManager.Interop.HIDDEN_REGION_EVENT
  [in] Indicates the exact user action taken on the hidden text region. For more information, see HIDDEN_REGION_EVENT.

• fBufferModifiable
  Type: System.Int32
  [in] Flag indicating whether the buffer can be modified.

Remarks

COM Signature

From textmgr.idl:

HRESULT IVsHiddenTextClient::OnHiddenRegionChange(
   [in] IVsHiddenRegion *pHidReg, 
   [in] HIDDEN_REGION_EVENT EventCode, 
   [in] BOOL fBufferModifiable
);

IVsHiddenTextClient.OnHiddenRegionChange is only fired in response to external churn on the view or buffer; it is not fired in response to calls on IVsHiddenTextState.

.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.

See Also

Reference

IVsHiddenTextClient Interface

Microsoft.VisualStudio.TextManager.Interop Namespace