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.NET Forum / Languages / Managed C++ / June 2004Managed C++ control in Internet Explorer
I'm having difficulty embedding a managed C++ control in Internet Explorer. I'm using the same object syntax in the html as I would for a c# control, but IE doesn't seem to find the control in the dll. Is there a different object syntax used to identify a control in a managed c++ dll? Thanks, Paul Hi Paul, >Is there a different object syntax used to identify a control in a managed c++ dll? .there is no special syntax to embed a managed c++ control in a HTML page, the syntax is not dependent on the language that maked the control. and how is your managed c++ control? Is it an ActiveX control or a WinForm control, do you have test it in ActiveX Test Control Container or a WinFrom application? By the way, if it is a WinForm Control, the running environment should have installed the .NET framework and the IE version need above 5.0... Thanks! Best regards, Gary Chang Microsoft Online Partner Support  SignatureGet Secure! - www.microsoft.com/security This posting is provided "AS IS" with no warranties, and confers no rights. -------------------- Hi Gary, Thanks for the reply. The managed c++ control is a WinForm control. I reduced it down to creating a C++ .NET control library project in VS.NET 2003, adding a couple of buttons, compiling and placing the resulting dll in the same directory as my html page. Doing it as a C# control works fine, the html looks like this: <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1.UserControl1 height=480 width=640 VIEWASTEXT> In managed C++ the naming I think I need would be: <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1::UserControl1 height=480 width=640 VIEWASTEXT> But it doesn't work. The test system is WinXP, .net 1.1 ie 6. Kind Regards, Paul > Hi Paul, > [quoted text clipped - 21 lines] > This posting is provided "AS IS" with no warranties, and confers no rights. > -------------------- This is an issue for me currently . It might have to with the security settings of the local machine. Unfortunately the c++ complier cannot produce "verifiable" assemblies. The clr performs this check during JIT compilation. Verification is required by default for most zones. This I think is a good thing. Anyway depending on where you are loading your control from ( internet, intranet, etc. ) you will have to increase the security settings to full trust. You can perform this task using the .NET configuration tools. NOTE: I understand that there is a way to set the policy for a single assembly but I have not had any luck with it so far. What I am suggesting will open up the door for ALL assemblies to run pretty much unrestricted. It will, however, allow you to develop your control until a proper solution is found. I guess what I am trying to say is that this will need to be fixed before deploying your control into production. Hope this helps somewhat. George Economos > Hi Gary, > [quoted text clipped - 5 lines] > > <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1.UserControl1 > height=480 width=640 VIEWASTEXT> > > In managed C++ the naming I think I need would be: > <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1::UserControl1 > height=480 width=640 VIEWASTEXT> > [quoted text clipped - 33 lines] > rights. > > -------------------- Thanks for replying. I'm thinking that I may be better off waiting until the managed C++ overhaul in VS2005, presumably it will fix this? The production environment is over 2000 desktops, so I would prefer not to have an upgrade that could potentially cause security issues. > This is an issue for me currently . It might have to with the security > settings of the local machine. [quoted text clipped - 28 lines] > > > > <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1.UserControl1 > > height=480 width=640 VIEWASTEXT> > > > > In managed C++ the naming I think I need would be: > > <object id=TestControl classid=http:WindowsControlLibrary1.dll#WindowsControlLibrary1::UserControl1 > > height=480 width=640 VIEWASTEXT> > > [quoted text clipped - 35 lines] > > rights. > > > -------------------- Hi Paul, Thanks for your quickly response! > ... I'm thinking that I may be better off waiting until > the managed C++ overhaul in VS2005, presumably it will fix this?The > production environment is over 2000 desktops, so I would prefer not to have > an upgrade that could potentially cause security issues. We do understand your concern on this scenario, it really would bring some troubles to the MC++ developers. We will pass your feedback to VC dev team. Thanks for your understanding! Best regards, Gary Chang Microsoft Online Partner Support SignatureGet Secure! - www.microsoft.com/security This posting is provided "AS IS" with no warranties, and confers no rights. --------------------
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