How to use INT 10 video calls instead of direct memory video

[VOR]

I think that Clipper DOS applications is using video memory directly.

Does anybody know if there is any parameter that allows to use standard INT 0x10 BIOS VIDEO calls?.

 

[HotEye]

You will need to re-link using an alternate Terminal driver. This is copied from the Clipper Norton guide:

--------- CA-Clipper 5.2 » Drivers Guide » Terminal » Terminal » ... -----

--------------------------------------------------------------------------
Linking the PCBIOS Terminal Driver
--------------------------------------------------------------------------

To link the PCBIOS alternate terminal driver into an application
program, you must specify both GT.OBJ and PCBIOS.LIB to the linker in
addition to your application object (.OBJ) modules.

1. To link with .RTLink using positional syntax:

C>RTLINK <appObjectList> GT,,, PCBIOS;

2. To link with .RTLink using freeformat syntax:

C>RTLINK FI <appObjectList>, GT LIB PCBIOS

3. To link with .RTLink using PCBIOS.PLL and freeformat syntax:

C>RTLINK FI <appObjectList> /PLLCBIOS


Note: These link commands assume you have set the LIB, OBJ, and PLL
environment variables to the standard locations. They also assume that
the CA-Clipper programs were compiled without the /R option.

Important! You cannot link the PCBIOS driver with BASE52.PLL. An
application linked with both PCBIOS.LIB and BASE52.PLL may cause the
user's computer to freeze when the user executes it.



Please refer to your &quot;Drivers Guide&quot; documentation for full details.

I have never used an alternate terminal driver, so good luck and hope it works.

HotEye