[cw-discuss] Interesting issue about application written in MS Java (CrossOver for Linux beta)

[Radovan Skolnik]

Hello,

we are extensively using an application from HP that is written for MS JVM 
(uses non-standard extensions such as OLE, COM, WFC, ...). Recently I have 
tried to install it into CrossOver beta (I am a Linux newbie) and got quite 
surprised that it partially works: the application starts, opens main screen, 
draws meus, etc. However the most important part (opening a form) is not 
working and ends up with following exception: 

Wed, 11/10/2006 11:37:10 <Trace> com.ms.wfc.core.WFCException: ActiveX 
control's top level parent has to be derived from class Form.
        at com/ms/wfc/ui/AxHost.getParentContainer
        at com/ms/wfc/ui/AxHost.quickActivate
        at com/ms/wfc/ui/AxHost.activateAxControl
        at com/ms/wfc/ui/AxHost.transitionUpTo
        at com/ms/wfc/ui/AxHost.createHandle
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.createControl
        at com/ms/wfc/ui/Control.add
        at com/ms/wfc/ui/TabControl.add
        at com/hp/ifc/ui/AppDataPane.<init>
        at com/hp/ifc/ui/AppUIManager.createDataPane
        at com/hp/ifc/ui/AppDataForm.createDataPane
        at com/hp/ifc/ui/AppDataForm.buildForm
        at com/hp/ifc/ui/AppDataForm.<init>
        at com/hp/ifc/ui/AppDataForm.<init>
        at com/hp/ifc/ui/AppDataFormManager.get
        at com/hp/ifc/ui/AppDataFormManager.get
        at com/hp/ifc/ui/AppUIManager.createDataWindow
        at com/hp/ifc/ui/AppGridView.getDataWindow
        at com/hp/ifc/ui/ViewUtils.openItems
        at com/hp/ifc/ui/AppGridView.openItems
        at com/hp/ifc/ui/AppGridView.dblClick
        at com/ms/wfc/core/EventHandler.invoke
        at com/hp/ifc/ui/grid/GridEX/GridEXEventMulticaster.DblClick
        at com/ms/wfc/win32/Windows.DispatchMessage
        at com/ms/wfc/app/Application$ThreadContext.runMessageLoop
        at com/ms/wfc/app/Application.run
        at com/hp/ifc/ui/AppConsole.main


Looking over the Internet I found this exception only mentioned once in a 
context that didn't help me at all. Would anyone be able to suggest anything?

I looked what it does in com/ms/wfc/ui/AxHost.getParentContainer and it is as 
following (beware - this is Java code):

    Container getParentContainer()
    {
        if(container == null)
            container = Container.findContainerForControl(this);
        if(container == null)
        {
            Form form = containingForm != null ? containingForm : getForm();
            if(form == null)
                throw new WFCException(Sys.getString("AXNoTopLevelForm"));
            container = form.createAxContainer();
            IComponentSite icomponentsite = getComponentSite();
            container.addControl(this, icomponentsite != null ? 
icomponentsite.getName() : null);
            containingForm = form;
        }
        return container;
    }

Here's what appears when wine's run with --verbose flag:
	err:listview:LISTVIEW_WindowProc unknown msg 2210 wp=07740001 lp=00020774
	err:updown:UpDownWindowProc unknown msg 2210 wp=88e0001 lp=0001088e


So it seems it is unable to find some parent container. Is anybody able to 
help with this or suggest some workaround?

Thank you very much. Best regards

  Radovan Skolnik
 
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Ing. Radovan Skolnik
TEMPEST a.s.
Department of Enterprise Management
Plynarenska 7/B
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Slovak Republic

E-mail: radovan_skolnik at tempest.sk
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