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)
{
SendNotifymessage(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]]

"Anonymous" <no******@here.comschreef in bericht
news:5Y******************************@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)
{
SendNotifymessage(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]]

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:\\Microsoft.public.vb.Generaldiscussions

Cor

"Anonymous" <no******@here.comschreef in bericht
news:5Y******************************@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)
{
SendNotifymessage(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]

Anonymous,

Is this a MFC DLL or not?

SendNotifyMessage returns a boolean value not null

See:

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

But maybe SendMessageCallBack will be better:

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

You can also post your DLL question to:

microsoft.public.dotnet.languages.vc

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

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

"Anonymous" <no******@here.comwrote in message
news:5Y******************************@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)
{
SendNotifymessage(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