1 files changed, 77 insertions, 0 deletions
diff --git a/shared/com_error.h b/shared/com_error.h
new file mode 100644
index 00000000..ab365977
--- /dev/null
+++ b/shared/com_error.h
@@ -0,0 +1,77 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#ifndef COM_ERROR_HEADER
+#define COM_ERROR_HEADER
+
+#include <string>
+#include <cstdio>
+#include <comdef.h>
+
+namespace util
+{
+std::wstring generateErrorMsg(const std::wstring& input, HRESULT hr);
+
+
+class ComException
+{
+public:
+    ComException(const std::wstring& message, HRESULT hr = NO_ERROR)
+        : message_(message), hr_(hr) {}
+
+    std::wstring show() const
+    {
+        return hr_ != NO_ERROR ? generateErrorMsg(message_, hr_) : message_;
+    }
+
+private:
+    const std::wstring message_;
+    const HRESULT hr_;
+};
+ 
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//################# implementation #####################
+inline
+std::wstring numberToHexString(long number)
+{
+    wchar_t result[100];
+    swprintf(result, 100, L"0x%08x", number);
+    return std::wstring(result);
+}
+
+
+inline
+std::wstring generateErrorMsg(const std::wstring& input, HRESULT hr)
+{
+    std::wstring output(input);
+    output += L" (";
+    output += numberToHexString(hr);
+    output += L": ";
+    output += _com_error(hr).ErrorMessage();
+    output += L")";
+    return output;
+}
+}
+#endif //COM_ERROR_HEADER
+\ No newline at end of file