• Why I can't write text in the HTML forms?
• How can I print the current page?
• How can I avoid other Explorer windows appearing?
• I want to hide the Explorer context menu to my application users.
• Delphi give some errors when I compile the example source.
• I've tried to use the PopupMenu property, but it seem not working.

• Why I can't write text in the HTML forms?

  This is a problem of the encapsulation of the WebBrowser ActiveX component, from Microsoft.

  

• How can I print the current page?

You can use the ExecWB embedded method to send commands to the ActiveX control.
This is a sample of printing:

procedure TExplorerForm.printClick(Sender: TObject);
var
    null : OLEvariant ;
begin
    null := 0 ;
    try
        Browser.EXECWB ( OLECMDID_PRINT, OLECMDEXECOPT_PROMPTUSER,
                         null, null ) ;
    except
    end ;
end;

The try-except block avoid a message dialog when the user click on the Cancel button.

• How can I avoid other Explorer windows appearing?

You can use the event OnNewWindow2 to avoid this. Simply set the Cancel variable to false to cancel the navigation.

This solution has a problem: if there is a link on an HTML page that require a new browser, the navigation to that link is canceled. I'm searching more informations to solve this problem. Stay tuned!

• I want to hide the Explorer context menu to my application users.

You can't avoid that, whan an user right-clicks on a link or over a page, the component shows a context menù.

Remember that the component is derived directly from the Microsoft WebBrowser ActiveX control, and we have no control on some type of events.

• Delphi give some errors when I compile the example source.

This is a my bug only in the TExplorerCommand for Delphi 3. I've used Delphi 3.01 Client/Server to develop the example program. During develop Delphi has added some units to the uses clause that other version of Delphi does'nt have (because I've tried to add spectacular component to the example program).

To solve this problem, remove the units:

• TeEngine, TeeFunci, Series, TeeProcs, Chart from the FormEx.pas source
• DtMisc from the Example.pas source

• I've tried to use the PopupMenu property, but it seem not working.

This property is not part of the WebBrowser object and is not part of TExplorerCommand component. It is added by Delphi Importer like the standard properties HelpContext, Hint, TabOrder and so on.

You can use them to store informations, but the component completely ignore these values.