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Posted 17 Nov 1999

Multilingual Application - Change Application Language

, 17 Nov 1999
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Multilingual Application - Change Application Language


Developing applications supporting multiple languages has always been a drag. With the possibility of including several languages into the rc file of a project, the problem is not entirely solved: The operating system is used as a base and decides what language your application is working with.

If as example, the resources contain English and German, the application will use the English resources on an American or British Windows system, and German on a German or Swiss (German) Windows version. Other language versions of Windows will use the default language (English in most cases).

This behavior is acceptable in most cases, but can cause some headaches: A French speaking person might prefer the German version of your application, but gets by default the English version. Under Windows NT and Windows 2000, there is a simple way of adding the functionality for switching between languages.

Please note: This will only work under NT 3.51 and Windows 2000. There were some problems using NT 4.0 SP3 (and earlier?) reported, but I could not confirm them.

Step 1.

Add the desired languages to your resources.


Step 2.

Enhance your code as follows:

 // Place this code in InitInstance()
 m_lang = GetProfileInt("General","Language",0);
  if (m_lang == 0) {
    // switch language to english
  else {
    // switch language to german
  // Add a menu or a toolbar button and attach this method 

  void CLanguageApp::OnLanguageTogglelanguage() 
    if (m_lang == 0) {
    else {
    AfxMessageBox(IDS_RESTART); // tell the user to restart the application



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About the Author

Daniel Zuppinger
Chief Technology Officer
Switzerland Switzerland
Professional IT developer since 1983. First projects with Cobol, then Pascal, Modula2, C and since Visual C++ 1.0 also with C++. Works since 1986 as Consultant, between 1990 and 2008 for Infobrain in Switzerland, from 2008 until 2013 for enValue (also Switzerland) and currently I'm working for Comfone (Bern, Switzerland).

Married, two daughters, Hobbies : Paragliding, Orienteering, Mountainbiking, Photography

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Comments and Discussions

QuestionI can't use in Russian Pin
coma3232-Dec-07 0:28
membercoma3232-Dec-07 0:28 
GeneralPlease help Pin
sreejith ss nair18-Sep-05 21:28
membersreejith ss nair18-Sep-05 21:28 
QuestionHow about using French Pin
ashish kumar patel1-Aug-05 19:19
memberashish kumar patel1-Aug-05 19:19 
AnswerRe: How about using French Pin
Ophir15-Feb-06 10:46
memberOphir15-Feb-06 10:46 
GeneralProblem with language=English(USA) Pin
achimschoen24-Apr-05 20:53
memberachimschoen24-Apr-05 20:53 
GeneralGlobalization using .NET and Oracle 10g Pin
ashit_barot21-Mar-05 18:58
memberashit_barot21-Mar-05 18:58 
GeneralMircrosoft advise against this on 2000/XP Pin
Obliterator15-Dec-04 3:42
memberObliterator15-Dec-04 3:42 
GeneralUse external language packs instead of DLLs for supporting multilingual Pin
Herman Kwan9-Aug-02 14:14
memberHerman Kwan9-Aug-02 14:14 
QuestionHow about the Win95/98/ME Pin
sandy16-Oct-01 4:56
membersandy16-Oct-01 4:56 
AnswerRe: How about the Win95/98/ME Pin
rudie7-Jan-03 22:36
memberrudie7-Jan-03 22:36 

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