Retrieves a reference to the underlying ActiveX control.
(in System.Windows.Forms.dll)
Visual Basic (Declaration)
Public Function GetOcx As Object
Dim instance As AxHost
Dim returnValue As Object
returnValue = instance.GetOcx()
public function GetOcx() : Object
The following code example overrides the constructor, and the SetAboutBoxDelegate and AttachInterfaces methods of an AxHost derived class that wraps the Microsoft Masked Edit ActiveX Control. This code requires that you have created the generated source code by running the AxImp.exe on the MSMask32.ocx file with the /source switch to generate the wrapper class to be edited. This code is only shown in C# syntax because that is the only language output by the AxImp.exe.
public AxMaskEdBox()
:
base("c932ba85-4374-101b-a56c-00aa003668dc") // The ActiveX control's class identifier.
{
// Make the AboutBox method the about box delegate.
this.SetAboutBoxDelegate(new AboutBoxDelegate(AboutBox));
}
public virtual void AboutBox()
{
// If the instance of the ActiveX control is null when the AboutBox method
// is called, raise an InvalidActiveXStateException exception.
if ((this.ocx == null))
{
throw new System.Windows.Forms.AxHost.InvalidActiveXStateException(
"AboutBox", System.Windows.Forms.AxHost.ActiveXInvokeKind.MethodInvoke);
}
// Show the about box if the ActiveX control has one.
if (this.HasAboutBox)
{
this.ocx.AboutBox();
}
}
protected override void AttachInterfaces()
{
try
{
// Attach the IMSMask interface to the ActiveX control.
this.ocx = ((MSMask.IMSMask)(this.GetOcx()));
}
catch (System.Exception ex)
{
System.Console.WriteLine(ex.Message);
}
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Reference