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Use an ActiveX control in your Win32 Project without MFC with CreateWindowEx or in a dialog box

, 15 Apr 2007
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An article on how to use an ActiveX control in your Win32 Project without MFC with CreateWindowEx or in a dialog box
Screenshot - d.jpg

Introduction

You would really like to use the multitude of ActiveX controls available in Windows and on the Internet, however you did have to use MFC or OWL or a non native platform. The solution is here! A HWND that acts as an ActiveX container!

Using the code

In short, AX is a HWND that acts as an ActiveX container. You register its class with AXRegister():

int __stdcall WinMain(HINSTANCE h,HINSTANCE,LPSTR,int)
{
    OleInitialize(0);
    if (!AXRegister())
        return 0;
    ...
}

Using the control is easy. You either use CreateWindowEx(), or specify the AX control within the RC editor:

DIALOG_1 DIALOGEX 0, 0, 500, 400
...
{
    CONTROL "{8856F961-340A-11D0-A96B-00C04FD705A2}", 801, "AX", 
                WS_CHILD | WS_VISIBLE, 0, 0, 500, 400
}

As the Window Title, you use the CLSID of the ActiveX object you wish to create. Here I used the CLSID of Internet Explorer. You can find all the CLSIDs you want by using MS's OLEView.

When you call CreateWindowEx() or DialogBox() to create the window, the ActiveX object will be created, but it won't as yet be activated in place. Use AX_INPLACE (wParam = 1 to Activate , wParam = 2 to deactivate):

case WM_INITDIALOG:
{
    HWND hX = GetDlgItem(hh,801);
    SendMessage(hX,AX_INPLACE,1,0)
...

And how do you access the interfaces that this ActiveX object supports? Use AX_QUERYINTERFACE, with WPARAM as a pointer to the reference ID, and LPARAM as a double pointer to the output interface. I try this with IWebBrowser2:

// Navigate
IWebBrowser2* wb = 0;
SendMessage(hX,AX_QUERYINTERFACE,(WPARAM)&IID_IWebBrowser2,(LPARAM)&wb);
if (wb)
{
    wb->Navigate(L"http://www.codeproject.com",0,0,0,0);
    wb->Release();
}

Points of Interest

AX.CPP and AX.H contain more code, not yet implemented (or yet buggy!) . My plan is to allow Advise Sink connections, OLE menus etc. in the future. AX implements as few as possible of the IOleClientSite methods, for simplicity. When you further explore OLE and ActiveX, you put your own implementations there!

With the above IWebBrowser2, for example, you might need to get notified when the user clicks on a URL. This can be done using IDispatch, but it isn't simple and I won't demonstrate it here, because it depends on the ActiveX control you want to host.

Good luck!

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Michael Chourdakis
Engineer
Greece Greece
I'm working in C++, PHP , Flash and DSP Programming, currently experimenting with Windows 7 technologies and professional audio applications.
 
I 've a PhD in Digital Signal Processing.
 
My home page: http://www.michaelchourdakis.com

Comments and Discussions

 
QuestionMultiple controls in a window PinmemberMember 1107790418-Sep-14 3:03 
QuestionIWebbrowser2 events in VC wihtout using MFC PinmemberMember 73749128-Jul-14 23:57 
AnswerRe: IWebbrowser2 events in VC wihtout using MFC PinmemberMichael Chourdakis9-Jul-14 0:06 
GeneralRe: IWebbrowser2 events in VC wihtout using MFC PinmemberMember 73749129-Jul-14 0:44 
Generalthinks a lot Pinmemberkk501114-Aug-13 23:33 
Questiontab and delete keys are not working Pinmembervenkatesh528678-May-13 21:40 
QuestionFor "ENTER" click the events are not taking place on webpage. PinmemberNIKHIL788 Agrawal1-Dec-12 4:34 
AnswerRe: For "ENTER" click the events are not taking place on webpage. PinmemberMichael Chourdakis1-Dec-12 4:40 
GeneralRe: For "ENTER" click the events are not taking place on webpage. PinmemberNIKHIL788 Agrawal1-Dec-12 4:46 
GeneralRe: For "ENTER" click the events are not taking place on webpage. PinmemberMichael Chourdakis1-Dec-12 4:49 
GeneralRe: For "ENTER" click the events are not taking place on webpage. PinmemberNIKHIL788 Agrawal1-Dec-12 5:45 
QuestionCan not open tax.zip Pinmember40810576413-Nov-12 23:02 
AnswerRe: Can not open tax.zip PinmemberMichael Chourdakis14-Nov-12 6:38 
GeneralRe: Thanks Pinmember40810576414-Nov-12 16:43 
QuestionCanot compile PinmemberATILLA672-Oct-12 6:15 
AnswerRe: Canot compile Pinmembershint10-Apr-13 19:25 
GeneralThanks for this very useful article. PinmemberMember 83703258-Nov-11 13:50 
GeneralMy vote of 5 PinmemberMember 432084425-Oct-11 11:52 
GeneralIShockwaveFlash Pinmemberzzz7net9-Apr-11 14:25 
GeneralMy vote of 4 Pinmemberzzz7net3-Apr-11 15:34 
GeneralContext menu Pinmemberbasiek29-Mar-11 5:07 
GeneralRe: Context menu Pinmemberbasiek5-Apr-11 4:00 
GeneralKeyboard shortucts PinmemberMartin Kucera23-Jan-11 23:39 
GeneralRe: Keyboard shortucts PinmemberNIKHIL788 Agrawal2-Dec-12 2:59 
GeneralAdobe Acrobat Browser Control Pinmemberdrunkbear16-Jul-10 20:16 

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