9.34

CPP/Windows/ErrorMsg.cpp

@@ -0,0 +1,61 @@
+// Windows/ErrorMsg.h
+
+#include "StdAfx.h"
+
+#ifndef _UNICODE
+#include "../Common/StringConvert.h"
+#endif
+
+#include "ErrorMsg.h"
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+namespace NError {
+
+static bool MyFormatMessage(DWORD errorCode, UString &message)
+{
+  LPVOID msgBuf;
+  #ifndef _UNICODE
+  if (!g_IsNT)
+  {
+    if (::FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL, errorCode, 0, (LPTSTR) &msgBuf, 0, NULL) == 0)
+      return false;
+    message = GetUnicodeString((LPCTSTR)msgBuf);
+  }
+  else
+  #endif
+  {
+    if (::FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
+        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL, errorCode, 0, (LPWSTR) &msgBuf, 0, NULL) == 0)
+      return false;
+    message = (LPCWSTR)msgBuf;
+  }
+  ::LocalFree(msgBuf);
+  return true;
+}
+
+UString MyFormatMessage(DWORD errorCode)
+{
+  UString message;
+  if (!MyFormatMessage(errorCode, message))
+  {
+    wchar_t s[16];
+    for (int i = 0; i < 8; i++)
+    {
+      unsigned t = errorCode & 0xF;
+      errorCode >>= 4;
+      s[7 - i] = (wchar_t)((t < 10) ? ('0' + t) : ('A' + (t - 10)));
+    }
+    s[8] = '\0';
+    message = (UString)L"Error #" + s;
+  }
+  return message;
+}
+
+}}