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Qt-interest Archive, February 2007
Using Qt to create plugins for other applications

Message 1 in thread

Hi. I have a Qt application and I want to create a web plugin version  
of it. I want to use the Netscape plugin API  as this is the most  
compatible type of browser plugin.

During the load process, I get a NPWindow *. I want to be able to  
create an instance of one of my QWidget derived classes and parent it  
into this window. Is there a way in Qt to do this?

Thanks.

Brant Sears

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Message 2 in thread

On Monday 26 February 2007 3:35 pm, Brant Sears wrote:
> Hi. I have a Qt application and I want to create a web plugin version
> of it. I want to use the Netscape plugin API  as this is the most
> compatible type of browser plugin.
>
> During the load process, I get a NPWindow *. I want to be able to
> create an instance of one of my QWidget derived classes and parent it
> into this window. Is there a way in Qt to do this?
>

Something like this:

// this class is a wrapper around the NPWindow provided by the browser
class NPQWidget : public QWidget
{
  Q_OBJECT
  public:
    NPQWidget(NPWindow*)
    {
       .. get the native window id from NPWindow
       this->create( nativeWindowId );
    }
    ~NPQWidget()
    {
       this->destroy(false, true);
    }
};

Then you can make any QWidget the child of your NPQWidget.
I haven't tried that on the Mac.  If you want it to work on Mac, you'll probably have to go an extra step into the HIView world.

Clint
Message 3 in thread

"Brant Sears" <brant@xxxxxxx> wrote in message 
news:66E79EFE-BFA9-4142-BBCD-24EB951BAA2C@xxxxxxxxxx
> Hi. I have a Qt application and I want to create a web plugin version 
> of it. I want to use the Netscape plugin API  as this is the most 
> compatible type of browser plugin.
>
> During the load process, I get a NPWindow *. I want to be able to 
> create an instance of one of my QWidget derived classes and parent it 
> into this window. Is there a way in Qt to do this?
>
> Thanks.
>
> Brant Sears


Hi Brant,


You could just try the QtBrowserPlugin solution:

http://www.trolltech.com/products/qt/addon/solutions/catalog/4/Utilities/qtbrowserplugin/


Volker


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