一些WinAPI 处理 字符的函数和连接（GetACP和SetThreadLocale最重要，还有SetConsoleCP）

虽然东西都是现成的。但是也要脑子里有个概念。

// 地区与语言
GetACP 取得 ANSI code page，法语XP+设置中文内核 = 936 // ShowMessage(IntToStr(GetACP));
GetThreadLocale 法语XP+设置中文内核 = 2052，纯法语 1036 // ShowMessage(IntToStr(GetThreadLocale));
SetThreadLocale

SetConsoleCP
ConvertDefaultLocale

SetLocaleInfo
GetLocaleInfo
GetLocaleInfoEx

GetCPInfo

MAKELCID
GetSystemDefaultLCID = 2052
GetUserDefaultLCID = 2052

LCIDToLocaleName
GetUserDefaultLocaleName // vista
GetSystemDefaultLocaleName
GetSystemDefaultLocaleName
LCIDToLocaleName
LCMapStringEx

National Language Support Functions
http://msdn.microsoft.com/en-us/library/windows/desktop/dd319081(v=vs.85).aspx
Code Page Identifiers
http://msdn.microsoft.com/en-us/library/windows/desktop/dd317756(v=vs.85).aspx

GetCharABCWidths
GetCharWidth32

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After googling a lot, I saw that lot of people have problems displaying unicode on the console. But I didn't found a solution.

I read that :
1. the console font must be set to lucida TT.
2. the code page must be forced to 1252 (or 65001 for utf-8).

Qt Code:

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1. int main(int argc, char *argv[])
2. {
3. QCoreApplication a(argc, argv);
4. QString unicodeString(QChar(0x9788));
5. QTextStream qStdOut(stdout, QIODevice::WriteOnly);
6. DWORD dwWritten;
7.  
8. // 1st try: replace oem with ascii
9. #ifdef _WIN32
10. std::cout << "Switch input to Ascii CodePage (1252): " << (::SetConsoleCP(::GetACP())?"ok":"fail") << std::endl;
11. std::cout << "Switch output to Ascii CodePage (1252): " << (::SetConsoleOutputCP(::GetACP())?"ok":"fail") << std::endl;
12. std::cout << "Current input CodePage: " << (unsigned int)::GetConsoleCP() << std::endl;
13. std::cout << "Current output CodePage: " << (unsigned int)::GetConsoleOutputCP() << std::endl;
14. #endif
15. qStdOut << QString("QTextStream: ") << unicodeString << QChar(' ');
16. qStdOut.flush();
17. qStdOut.setCodec("UTF-16");
18. qStdOut << QString("QTextStream: ") << unicodeString << QChar(' ');
19. qStdOut.flush();
20. std::cout << "cout: " << (char*)unicodeString.utf16() << std::endl;
21. std::cout << "cout: " << (char*)(unicodeString.toUtf8().constData()) << std::endl;
22. std::wcout << L"wcout: " << (wchar_t*)unicodeString.utf16() << std::endl;
23. std::wcout << L"wcout: " << (char*)(unicodeString.toUtf8().constData()) << std::endl;
24. printf("printf: %ls ", unicodeString.utf16());
25. wprintf(L"wprintf: %ls ", unicodeString.utf16());
26. #ifdef _WIN32
27. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), L"WriteConsoleW: ", 15, &dwWritten, NULL);
28. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), (unicodeString + ' ').utf16(), unicodeString.length()+1, &dwWritten, NULL);
29. #endif
30.  
31. // 2nd try : set CP to utf-16
32. #ifdef _WIN32
33. std::cout << " Set input CP to ucs2: " << (::SetConsoleCP(1200)?"ok":"fail") << std::endl;
34. std::cout << "Set output CP to ucs2: " << (::SetConsoleOutputCP(1200)?"ok":"fail") << std::endl;
35. std::cout << "Current input codepage: " << (unsigned int)::GetConsoleCP() << std::endl;
36. std::cout << "Current output codepage: " << (unsigned int)::GetConsoleOutputCP() << std::endl;
37. #endif
38. qStdOut << QString("QTextStream: ") << unicodeString << QChar(' ');
39. qStdOut.flush();
40. std::cout << "cout: " << (char*)unicodeString.utf16() << std::endl;
41. std::wcout << L"wcout: " << (wchar_t*)unicodeString.utf16() << std::endl;
42. printf("printf: %ls ", unicodeString.utf16());
43. wprintf(L"wprintf: %ls ", unicodeString.utf16());
44. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), L"WriteConsoleW: ", 15, &dwWritten, NULL);
45. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), (unicodeString + ' ').utf16(), unicodeString.length()+1, &dwWritten, NULL);
46.  
47. // 3rd try : set CP to utf-8
48. #ifdef _WIN32
49. std::cout << " Set input CP to utf-8: " << (::SetConsoleCP(65001)?"ok":"fail") << std::endl;
50. std::cout << "Set output CP to utf-8: " << (::SetConsoleOutputCP(65001)?"ok":"fail") << std::endl;
51. std::cout << "Current input codepage: " << (unsigned int)::GetConsoleCP() << std::endl;
52. std::cout << "Current output codepage: " << (unsigned int)::GetConsoleOutputCP() << std::endl;
53. #endif
54. qStdOut.setCodec("UTF-8");
55. qStdOut << QString("QTextStream: ") << unicodeString << QChar(' ');
56. qStdOut.flush();
57. std::cout << "cout: " << (char*)unicodeString.toUtf8().constData() << std::endl;
58. std::wcout << L"wcout: " << (char*)unicodeString.toUtf8().constData() << std::endl;
59. printf("printf: %ls ", unicodeString.toUtf8().constData());
60. wprintf(L"wprintf: %ls ", unicodeString.toUtf8().constData());
61. #ifdef _WIN32
62. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), L"WriteConsoleW: ", 15, &dwWritten, NULL);
63. WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE), (unicodeString + ' ').utf16(), unicodeString.length()+1, &dwWritten, NULL);
64. #endif
65.  
66. return a.exec();
67. }

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The resulting output is awfull...

Qt Code:

Switch view

1. Switch input to Ascii CodePage (1252): ok
2. Switch output to Ascii CodePage (1252): ok
3. Current input CodePage: 1252
4. Current output CodePage: 1252
5. QTextStream: ?
6. Q T e x t S t r e a m : &#710;—
7. cout: &#710;—
8. cout: é&#382;ˆ
9. wcout: printf:
10. wprintf: WriteConsoleW: &#38792;
11.  
12. Set input CP to ucs2: fail
13. Set output CP to ucs2: fail
14. Current input codepage: 1252
15. Current output codepage: 1252
16. Q T e x t S t r e a m : &#710;—
17. cout: &#710;—
18. printf:
19. wprintf: WriteConsoleW: &#38792;
20.  
21. Set input CP to utf-8: ok
22. Set output CP to utf-8: ok
23. Current input codepage: 65001
24. Current output codepage: 65001
25. QTextStream: &#38792;
26. cout: printf:
27. wprintf: WriteConsoleW: &#38792;

http://www.qtcentre.org/threads/2344-Unicode-on-(Win32)-console