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X-Tools · Posted: Fri Jan 16, 2004 8:21 am Post subject: Bug in vdstcp50.dll

Hi,

vdstcp50 does not work when no dialog is showing. I try to make a tcp server listening and get always "invalid argument" on TCP LISTEN when no dialog is showing.

Bye, Fabian

CodeScript · Posted: Fri Jan 16, 2004 12:57 pm Post subject:

Just add a Dialog but don't issue "Dialog Show" - just a thought

FreezingFire · **Admin Team** Joined: 23 Jun 2002 Posts: 3508

Just to illustrate what CodeScript was saying, you could make a fake
dialog as follows:

X-Tools · Posted: Fri Jan 16, 2004 1:32 pm Post subject:

thanks for your answers - i understand what you mean.

jules · Posted: Mon Jan 19, 2004 11:41 am Post subject:

You have to do this because Winsock uses messages sent to a window to inform of certain events, such as a client connecting to a listening socket, and so you have to create a window for this. As has been said, you don't have to actually show it, which means that you can even create a server that runs as an NT service (which isn't allowed to show a dialog.)

X-Tools · Posted: Thu Jan 22, 2004 8:13 am Post subject:

I tested it today, but TCP LISTEN only works when the dialog is shown. before it still says invalid argument

Dr. Dread · Posted: Thu Jan 22, 2004 8:53 am Post subject:

If the DLL insists on having a dialog, then perhaps give it one but make it non-visible:

jules · Posted: Thu Jan 22, 2004 9:38 am Post subject:

Yes. I know it works, because the original POP3 and SMTP servers in Tech-Pro Mail Server were written in VDS, and they could run as a service under XP, where it is not possible to show the dialog. I seem to recall I had to code a workaround into the runtime to make this possible. Now, it may be (I haven't tested it) that it doesn't work like that in the IDE. In my servers, I added a command line paramater I could use to cause the dialog to be shown. (It's useful for testing, because you can display status messages on it.) But the compiled version certainly works without showing the dialog.

Skit3000 · Posted: Thu Jan 22, 2004 10:58 am Post subject:

Yes, but you are able to modify the runtime if you need a special function... Smile

Or does it have to work with the 'normal' runtime dll as well?

X-Tools · Posted: Mon Jan 26, 2004 1:33 pm Post subject:

Hi,

I have the same problem when showing two dialogs.
I tried to work with dialog select,0 but it still says invalid argument.

Bye, Fabian