"Use of Win32" demonstrations
Different language resources

   Various resources in English and in French
   Language specific strings

This is a demonstration of the use of various resource APIs, but with specific attention given to different languages resources. Using these methods you can make just one version of your program but provide several languages, depending on a language value or depending on the setting in the Control Panel "Regional settings".

Various resources in English and French
Here the resource file makes two dialogs, two menus, and two raw data strings (RCDATA) with the same IDs but in two different languages.
The API FindResourceEx, which is language specific, loads the correct resources, depending on the value of TEST_LANGUAGE. This value is set either to 809h (English, UK) or 140Ch (French, Luxembourg) depending on which test is being carried out.
The breakpoints RESOURCESIN_ENGLISH and RESOURCESIN_FRENCH show how the dialog is made. The breakpoint LANG_RESOURCETEST is called on the message WM_INITDIALOG in the MDLangDlgProc dialog procedure and loads the correct menu and raw data strings to write inside the dialog.
First lets look at the resource file itself (note this is syntax acceptable to GoRC, and will need changing for RC):- 

;************** the English menu
200h MENU
LANGUAGE LANG_ENGLISH,SUBLANG_ENGLISH_UK
BEGIN
   MENUITEM "this",     0x0FFFC
   MENUITEM "menu",     0x0FFFD
   MENUITEM "does",     0x0FFFE
   MENUITEM "nothing",  0x0FFFF
END
;************** now the French menu
200h MENU
LANGUAGE LANG_FRENCH, SUBLANG_FRENCH_LUXEMBOURG
BEGIN
   MENUITEM "cet",      0x0FFFC
   MENUITEM "menu",     0x0FFFD
   MENUITEM "ne fait",  0x0FFFE
   MENUITEM "rien",     0x0FFFF
END
;************** the English dialog
LangDlg DIALOG 10, 10, 160, 80
FONT 8,"MS Sans Serif"
CAPTION "Language test dialog"
LANGUAGE LANG_ENGLISH,SUBLANG_ENGLISH_UK
BEGIN
  ICON    1,                           -1, 8, 8,  0, 0
  CTEXT   "English version of this dialog",   -1, 30,12,100, 8
  CTEXT   "",                              0x200, 0, 28,160, 8
  DEFPUSHBUTTON "OK",                         1,102,50, 50,14
END
;************** the French dialog
LangDlg DIALOG 10, 10, 160, 80
FONT 8,"MS Sans Serif"
CAPTION "Le dialog pour le test \340 langage"
LANGUAGE LANG_FRENCH, SUBLANG_FRENCH_LUXEMBOURG
BEGIN
  ICON    1,                           -1,  8, 8,  0, 0
  CTEXT   "Version francais de cet dialog",   -1, 30,12,100, 8
  CTEXT   "",                              0x200, 0, 28,160, 8
  DEFPUSHBUTTON "accord",                     1,102,50, 50,14
END
;************** the English raw data
LANGUAGE LANG_ENGLISH,SUBLANG_ENGLISH_UK
0x200 RCDATA
BEGIN
"This is an English raw data string\0"
END
;************** the French raw data
LANGUAGE LANG_FRENCH, SUBLANG_FRENCH_LUXEMBOURG
0x200 RCDATA
BEGIN
"Ici un string francais data raw\0"
END
Now this is how the dialog is made:- 
RESOURCESIN_ENGLISH:
MOV D[TEST_LANGUAGE],0809h ;ENGLISH, UK
JMP >L2
RESOURCESIN_FRENCH:
MOV D[TEST_LANGUAGE],140Ch ;FRENCH, LUXEMBOURG
L2:
PUSH [TEST_LANGUAGE]
PUSH 'LangDlg'
PUSH 5                  ;DIALOG (5)
PUSH [hInst]
CALL FindResourceExA    ;find language-specific resource
OR EAX,EAX              ;see if failed
JZ >L5                  ;yes
PUSH EAX,[hInst]
CALL LoadResource
PUSH 0,OFFSET MDLangDlgProc,[hWnd]
PUSH EAX,[hInst]
CALL DialogBoxIndirectParamA
L5:
RET
And this loads the other resources on WM_INITDIALOG:- 
LANG_RESOURCETEST:
PUSH [TEST_LANGUAGE]
PUSH 200h
PUSH 4                  ;MENU type (4)      ;FindResource
PUSH [hInst]
CALL FindResourceExA    ;find language-specific resource
OR EAX,EAX
JZ >L2
PUSH EAX,[hInst]
CALL LoadResource
PUSH EAX
CALL LoadMenuIndirectA  ;get handle
PUSH EAX,[EBP+8]
CALL SetMenu
L2:
PUSH [TEST_LANGUAGE]
PUSH 200h,10,[hInst]    ;ID, RCDATA type (10)
CALL FindResourceExA    ;find language-specific resource
PUSH EAX,[hInst]
CALL LoadResource
PUSH EAX,0,0Ch,200h,[EBP+8]     ;text,, WM_SETTEXT, itemID
CALL SendDlgItemMessageA
MOV EAX,1               ;message processed

Language specific string
In this test we don't use a language specific API to load the resource. This means that if there are different language versions of the specified resource, the one loaded will depend on the current language setting in Control panel (the nearest will be loaded).
The correct string is loaded into BUFFER and displayed in a message box. Use the breakpoint STRINGTABLES_BY_LANGUAGE. 

STRINGTABLES_BY_LANGUAGE:    ;demonstrates how different strings can be obtained
PUSH 256D,ADDR BUFFER,8888h,[hInst]
CALL LoadStringA        ;get correct string depending on current language
PUSH 40h                ;information+ok button only
PUSH ADDR SMESS1
PUSH ADDR BUFFER
PUSH [hWnd]
CALL MessageBoxA        ;wait till ok pressed
RET
This is what is in the resource file (GoRC syntax). Note that the same ID is used in each case:- 
STRINGTABLE
LANGUAGE LANG_ENGLISH,SUBLANG_ENGLISH_UK
BEGIN
0x8888  "A string with an ID of 8888h has been obtained by LoadString.
        Now using the control panel, change to French(Luxembourg), 
        and come back here to see a string with the same ID
        but in French! (Don't bother to reboot)."
END
;******
STRINGTABLE
LANGUAGE LANG_FRENCH, SUBLANG_FRENCH_LUXEMBOURG
BEGIN
0x8888  "Je te l'avais bien dit!"
END