Subj : Re: Event Loop (Override Application->Run()?)
To   : borland.public.cpp.borlandcpp
From : Takahiro Horie
Date : Wed Oct 06 2004 09:29 am

I figured it out minutes after my post:

Write an OnMessage() handler for TApplication. Duh!

Thanks,
Timothy

On Tue, 05 Oct 2004 12:59:22 -0700, Takahiro Horie <tak@thorie.com>
wrote:

>Hello,
>
>Im writing a program that uses TWAIN, and according to their sample
>source code, I need to modify the windows event loop as follows:
>
>while (GetMessage((LPMSG)&msg,NULL,0,0)) {
>  twEvent.pEvent = (TW_MEMREF)&msg;
>  /* ... etc; do other TWAIN-related stuff ... */
>  if (NotATwainEvent) {
>    /* process as normal */
>    TranslateMessage((LPMSG)&msg);
>    DispathMessage((LPMSG)&msg);
>  }
>}
>
>Unfortunately, all of this is hidden in Application->Run() when I
>create a VCL application.
>
>I searched the Borland site and found "Coding closer to the metal"
>http://bdn.borland.com/article/0,1410,27822,00.html
>
>...But this means giving up all of the power of VCL and having to
>write in essentially raw Win32. 
>
>Is there a way to do what I'm trying to do with TWAIN without throwing
>away the nice VCL TForms and whatnot?
>
>Thanks in advance,
>Timothy
>

.