## Using Your DDK

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### DSPINSTL Action Routine Sample

Driver Description:

The DSPINSTL Action Routine DLLs are called by DSPINSTL to handle optional custom-control logic when the user selects to install certain display adapters through the DSPINSTL interface. These DLLs can be used to ask specialized questions of the user through PM panels, or to perform internal queries concerning the state of the hardware or software system. The DSPINSTL utility is informed of the name of the action routine DLL by an entry in the DSC file supplied for the corresponding display driver.

Compilers/Assemblers Required:

         IBM C Set ++ V2.01

Build Instructions:

1.Ensure the necessary compilers and assemblers are installed.

2.Run the SETCMPLR.CMD REXX command file located in the DDK\TOOLS directory. This command initializes environment variables to be used during the build.

e.g., SETCMPLR <MSCpath> <VACpath> <CSETpath> <DDKpath>

    Where <MSCpath> represents the Microsoft C 6.0 install directory
           <VACpath> represents the IBM Visual Age C++ install directory
           <CSETpath> represents the IBM C Set ++ install directory
           <DDKpath> represents the DDK install directory

Note: A period (.) may be substituted for a compiler directory that is not used during the build.

3.Change the directory to DDK\VIDEO\SRC\VIDEO\DSPINSTL.

4.Invoke NMAKE on the resident makefile.

Files Created By Successful Build:

         Directory:  \DDK\VIDEO\REL\OS2C\RETAIL\EN\OS2\DLL

         o  SVGAINST.DLL
         o  SVGA.DLL