## Using Your DDK

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### DBCS Base Video Handler for Windowed Session

Driver Description:

Double-Byte Character Set (DBCS) base video handlers are used to access video devices. Support is provided for windowed VIO sessions. This International Language Support Driver for VGA and IBM PS/2 display adapters is found in BVHWNDW.DLL.

Compilers/Assemblers Required:

         Microsoft MASM 5.1  (supplied with the DDK)
         Microsoft C 6.0

Build Instructions:

1.Run the SETDBCS.CMD command file in the <drive>:\DDK\TOOLS directory, passing <drive> and DDK as parameters. This will set the path and environment variables.

    e.g., SETDBCS <drive>:\DDK

Where <drive> represents your DDK installed drive and DDK represents the DDK installed directory. On the CD-ROM, the TOOLS directory path is DDK\ TOOLS.

2.Before the FIRST build is attempted, run the COPYC60.CMD REXX command file in the DDK\TOOLS directory. This command copies the set of needed files from your copy of the Microsoft C 6.0 compiler to the proper directories under the DDK base directory.

    e.g., COPYC60 <MSCdrive>:\'MSC60' <drive>:\DDK

Where <MSCdrive> represents the Microsoft C 6.0 installed drive and 'MSC60' represents the Microsoft C 6.0 installed directory, <drive> represents your DDK installed drive and DDK represents the DDK installed directory.

3.Change the directory to DDK\DBCS\SRC\VDHWNDW.

4.Invoke NMAKE on the resident makefile.

Build Notes:

    To complete the build, this component requires the following entries
    in CONFIG.SYS:

         CODEPAGE=932,850
         COUNTRY=081,C:\OS2\SYSTEM\COUNTRY.SYS

Files Created by Successful Build:

         Directory:  \DDK\DBCS\SRC\VDHWNDW

         o  BVHWNDW.DLL