System level programming in VC++

[Guest_imported]

In VC++ how can I use the union REGS earlier used only with Dos & C. Which header file I have to use here. I have already seen dos.h included with VC++ 6.0, but there is no defination of the REGS union, while earlier compilers of C used on Dos used to have the union defination of REGS in Dos.h. Please advise me what to do.

 

[Cagliostro]

#include<windows.h>
use regs functions. John Fill

ivfmd@mail.md

 

[davewelsh]

I tried that and the compiler still has no idea what REGS is.

 

[sarath123]

how to program the 3com business modem through vc++

 

[MKuiper]

Those regs stuff is ancient 16-bit code. In 32 bits environment, for most of the old interrupt functions, there is some API-equivalent. Calling a 16-bit function directly from a 32-bit program will not do anything else than crash or cause an access violation. This is the reason it is no longer supported.

Marcel