setup_native/source/win32/customactions/reg4msdoc/stringconverter.cxx

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  30
  31 #include "stringconverter.hxx"
  32
  33 #ifdef _MSC_VER
  34 #pragma warning(push, 1) /* disable warnings within system headers */
  35 #endif
  36 #include <windows.h>
  37 #ifdef _MSC_VER
  38 #pragma warning(pop)
  39 #endif
  40
  41 #include <malloc.h>
  42
  43 /** Convert a Unicode string to an ANSI string based on CP_ACP
  44 */
  45 std::string UnicodeToAnsiString(const std::wstring& UniString)
  46 {
  47     int len = WideCharToMultiByte(
  48         CP_ACP, 0, UniString.c_str(), -1, 0, 0, 0, 0);
  49
  50     char* buff = reinterpret_cast<char*>(_alloca(len));
  51
  52     WideCharToMultiByte(
  53         CP_ACP, 0, UniString.c_str(), -1, buff, len, 0, 0);
  54
  55     return std::string(buff);
  56 }
  57
  58 /** Convert an ANSI string to unicode based on CP_ACP
  59 */
  60 std::wstring AnsiToUnicodeString(const std::string& AnsiString)
  61 {
  62     int len = MultiByteToWideChar(
  63         CP_ACP, 0, AnsiString.c_str(), -1, 0, 0);
  64
  65     wchar_t* buff = reinterpret_cast<wchar_t*>(_alloca(len * sizeof(wchar_t)));
  66
  67     MultiByteToWideChar(
  68         CP_ACP, 0, AnsiString.c_str(), -1, buff, len);
  69
  70     return std::wstring(buff);
  71 }
  72
  73