Determining runtime code page and country code

Selecting MRI of the appropriate language is one of the important points of DBCS-enabling. In order to determine in which language MRI should be used, you need to find the runtime code page and country code.

┌──────────────────────────────────────────────────────────────────────┐
│DosQueryCp is to find the runtime code page. DosQueryCtryInfo (changed│
│from DosGetCtryInfo) and PrfQueryProfileInt are to find the runtime   │
│country code.                                                         │
└──────────────────────────────────────────────────────────────────────┘

DosQueryCp (changed from DosGetCp) is used for finding the runtime code page. PrfQueryProfileInt is used for a PM program to find the runtime country code. You can also use DosQueryCtryInfo (changed from DosGetCtryInfo) for obtaining the county code in a non-PM application.

The following shows the syntax for the APIs.

Function Syntax

APIRET DosQueryCp ( ULONG ulLength, PULONG pCodePageList, PULONG pDataLength );

APIRET DosQueryCtryInfo ( ULONG ulLength, PCOUNTRYCODE pCountry, PCOUNTRYINFO pMemBuff,
                          PULONG pDataLength );

LONG PrfQueryProfileInt ( HINI hini, psz pszApp, psz pszKey, LONG lDefault );

---------- End of Function Syntax

In general, a code page or a country code is used to select a proper MRI for the runtime environment, and to perform character data conversion when the data is exchanged among processes or systems. See -- Reference NLSFUNC not found -- for a programming example of the APIs. Also for a programming example of the APIs. Also refer to Determining a national language for MRI for the runtime MRI switching and refer to Exchanging data with Host software for the code conversion.

Hints and Tips
Read "OS/2 Technical Library Programming Guide Volume 1, chapter 16 National Language Support" right now if you haven't read it. It tells you the basic NLS guidance on OS/2 PM programming.
---------- End of Hints and Tips
[Back: Determining DBCS Environment Vector]
[Next: Preparing for DBCS input]