Thanks Roland,

I’ll review your feedback and look a bit further.

For the record, I’m trying to build this for the Qt environment and the source 
is v2.1.0rc0-615-gf38bd00 from master

Thanks and regards…Paul

From: [email protected] 
[mailto:[email protected]] On Behalf Of Roland Knall
Sent: 27 November 2015 09:41
To: Developer support list for Wireshark <[email protected]>
Subject: Re: [Wireshark-dev] plugin_if menu problems

Hi

I do not have anything standing in front of my callbacks, therefore I would 
remove WS_DLL_PUBLIC_DEF completely. It is not necessary in your case.

Secondly, if you are using the latest git source of Wireshark or the 2.0 
source, the correct prototype for the callback would be:
void menu_cb(ext_menubar_gui_type gui_type, gpointer gui_data, gpointer 
user_data _U_)

In which gui_type is defined as GTK or Qt to allow different callback handling 
for each interface (which is needed if you are opening a dialog window for 
example).

My code for opening the Qt Dialog is as follows:

void GuiHandler::executeDialog(QDialog * dialog)
{
    bool hasGuiApp = 
(qobject_cast<QApplication*>(QCoreApplication::instance())!=0);

    if ( ! hasGuiApp )
    {
        /* Necessity for creating the correct app context */
        int argc = 1;
        char * argv = (char *) "Test";

        /* In Gtk there is no application context, must be created and 
displayed */
        QApplication app(argc, &argv);

        dialog->show();

        app.exec();
    }
    else
    {
        /* With Wireshark Qt, an application context already exists, therefore 
just
         * displaying the dialog */
            dialog->exec();
    }
}


hasGuiApp searches for an existing QApplication object, which may only be 
instated once for each process, and will already exist for WS 2.0, otherwise it 
creates a QApplication context and opens the dialog. If the application exists, 
it simply executes the dialog.

Hope this helps, regards,
Roland


On Fri, Nov 27, 2015 at 8:27 AM, Paul Offord 
<[email protected]<mailto:[email protected]>> wrote:
I can answer part of the problem myself.  Adding #define WS_BUILD_DLL to the 
head of the file stops the dllimport issue.

Best regards…Paul

From: Paul Offord
Sent: 26 November 2015 22:37
To: '[email protected]<mailto:[email protected]>' 
<[email protected]<mailto:[email protected]>>
Subject: plugin_if menu problems

Hi,

I am experimenting with the plugin_if menu functions.  I’m creating the code in 
VS2013 and I have two stubborn errors that I can’t seem to resolve.  The code 
is:

#include <plugin_if.h>

extern int proto_tmsvc;

void menu_setup()
{

ext_menu_t * ext_menu, *os_menu = NULL;

ext_menu = ext_menubar_register_menu(
               proto_tmsvc, "TestMenu", TRUE);
ext_menubar_add_entry(ext_menu, "Jump 55",
               "This button causes Wireshark to jump to packet 55", menu_cb, 
"55");

}

WS_DLL_PUBLIC_DEF void menu_cb(gpointer user_data)
{

}

I get two errors:

IntelliSense: argument of type "void (*)(gpointer user_data)" is incompatible 
with parameter of type "ext_menubar_action_cb" – referring to the menu_cb 
parameter in the call to ext_menubar_add_entry

IntelliSense: a function declared 'dllimport' may not be defined – referring to 
the menu_cb function definition

Any advice much appreciated.

Thanks and regards…Paul

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