SendNotifyMessage() - Not working?

[Anonymous]

I need to update a VB6 label, with information showing progress of some
processing being carried out in a C DLL.

Basically, I want my C function to be able to write messages back to
VB6, which will then display the message in a label. I am subclassing
the form that contains the label to be updated (and passing its hWnd to
the C DLL), I then have a C function like this:


void writeGUIMessage (const char* msg)
{
SendNotifymessa ge(g_hWnd, WM_SETTEXT, 0, (LPARAM)msg);
}


This is not working - any idea why ?


Note: My Subclassing function stores the form Hwnd into the variable g_hWnd

[Cor Ligthert[MVP]]

Re: SendNotifyMessa ge() - Not working?


"Anonymous" <no.reply@here. comschreef in bericht
news:5YydnVAbco asKkfbnZ2dnUVZ8 tninZ2d@bt.com. ..

>I need to update a VB6 label, with information showing progress of some
>processing being carried out in a C DLL.
>
Basically, I want my C function to be able to write messages back to VB6,
which will then display the message in a label. I am subclassing the form
that contains the label to be updated (and passing its hWnd to the C DLL),
I then have a C function like this:
>
>
void writeGUIMessage (const char* msg)
{
SendNotifymessa ge(g_hWnd, WM_SETTEXT, 0, (LPARAM)msg);
}
>
>
This is not working - any idea why ?
>
>
Note: My Subclassing function stores the form Hwnd into the variable
g_hWnd
>
>

[Cor Ligthert[MVP]]

Re: SendNotifyMessa ge() - Not working?

Hi,

As the name of this newsgroup says, it is for dotNet programming. VB6 is no
dotNet programming, the newsgroup for those you can find as:

news:\\Microsof t.public.vb.Gen eraldiscussions

Cor

"Anonymous" <no.reply@here. comschreef in bericht
news:5YydnVAbco asKkfbnZ2dnUVZ8 tninZ2d@bt.com. ..

>I need to update a VB6 label, with information showing progress of some
>processing being carried out in a C DLL.
>
Basically, I want my C function to be able to write messages back to VB6,
which will then display the message in a label. I am subclassing the form
that contains the label to be updated (and passing its hWnd to the C DLL),
I then have a C function like this:
>
>
void writeGUIMessage (const char* msg)
{
SendNotifymessa ge(g_hWnd, WM_SETTEXT, 0, (LPARAM)msg);
}
>
>
This is not working - any idea why ?
>
>
Note: My Subclassing function stores the form Hwnd into the variable
g_hWnd
>
>

[Newbie Coder]

Re: SendNotifyMessa ge() - Not working?

Anonymous,

Is this a MFC DLL or not?

SendNotifyMessa ge returns a boolean value not null

See:

http://msdn2.microsoft.com/en-us/library/ms644953.aspx

But maybe SendMessageCall Back will be better:

http://msdn2.microsoft.com/en-us/library/ms644951.aspx

You can also post your DLL question to:

microsoft.publi c.dotnet.langua ges.vc

but remember just to mention its unmanaged & whether or not it MFC or not

--
Newbie Coder
(It's just a name)



"Anonymous" <no.reply@here. comwrote in message
news:5YydnVAbco asKkfbnZ2dnUVZ8 tninZ2d@bt.com. ..

I need to update a VB6 label, with information showing progress of some
processing being carried out in a C DLL.
>
Basically, I want my C function to be able to write messages back to
VB6, which will then display the message in a label. I am subclassing
the form that contains the label to be updated (and passing its hWnd to
the C DLL), I then have a C function like this:
>
>
void writeGUIMessage (const char* msg)
{
SendNotifymessa ge(g_hWnd, WM_SETTEXT, 0, (LPARAM)msg);
}
>
>
This is not working - any idea why ?
>
>
Note: My Subclassing function stores the form Hwnd into the variable g_hWnd
>
>