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Add an ErrorString utility which converts the code from GetLastError() into a human readable std::string.

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Originally committed to SVN as r4345.
This commit is contained in:
Amar Takhar 2010-05-22 21:09:37 +00:00
parent 12711d8c12
commit f7f59e5e1d
3 changed files with 53 additions and 0 deletions
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4
aegisub/build/libaegisub_vs2008/libaegisub_vs2008.vcproj
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@ -211,6 +211,10 @@
RelativePath="..\..\libaegisub\include\libaegisub\util.h"
>
</File>
<File
RelativePath="..\..\libaegisub\include\libaegisub\util_win.h"
>
</File>
<File
RelativePath="..\..\libaegisub\include\libaegisub\validator.h"
>

33
aegisub/libaegisub/include/libaegisub/util_win.h Normal file
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@ -0,0 +1,33 @@
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file util.h
/// @brief Public interface for Windows utilities.
/// @ingroup libaegisub windows
#ifndef LAGI_PRE
#include <string>
#include <windows.h>
#endif
namespace agi {
namespace util {
std::string ErrorString(DWORD error);
} // namespace util
} // namespace agi

16
aegisub/libaegisub/windows/util.cpp
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@ -28,6 +28,7 @@
#include <string.h>
#include "libaegisub/util.h"
#include "libaegisub/util_win.h"
namespace agi {
namespace util {
@ -55,5 +56,20 @@ void Rename(const std::string& from, const std::string& to) {
MoveFileExA(from.c_str(), to.c_str(), MOVEFILE_REPLACE_EXISTING);
}
std::string ErrorString(DWORD error) {
LPSTR lpstr = NULL;
if(FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, NULL, error, 0, (LPSTR)&lpstr, 0, NULL) == 0) {
/// @todo Return the actual 'unknown error' string from windows.
std::string str("Unknown Error");
return str;
}
std::string str(lpstr);
LocalFree(lpstr);
return str;
}
} // namespace io
} // namespace agi