source: trunk/synergy/lib/platform/CMSWindowsUtil.cpp

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2004 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include "CMSWindowsUtil.h"
#include "CStringUtil.h"
#include <stdio.h>

//
// CMSWindowsUtil
//

CString
CMSWindowsUtil::getString(HINSTANCE instance, DWORD id)
{
        char buffer[1024];
        int size = static_cast<int>(sizeof(buffer) / sizeof(buffer[0]));
        char* msg = buffer;

        // load string
        int n = LoadString(instance, id, msg, size);
        msg[n] = '\0';
        if (n < size) {
                return msg;
        }

        // not enough buffer space.  keep trying larger buffers until
        // we get the whole string.
        msg = NULL;
        do {
                size <<= 1;
                delete[] msg;
                char* msg = new char[size];
                n = LoadString(instance, id, msg, size);
        } while (n == size);
        msg[n] = '\0';

        CString result(msg);
        delete[] msg;
        return result;
}

CString
CMSWindowsUtil::getErrorString(HINSTANCE hinstance, DWORD error, DWORD id)
{
        char* buffer;
        if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
                                                                FORMAT_MESSAGE_IGNORE_INSERTS |
                                                                FORMAT_MESSAGE_FROM_SYSTEM,
                                                                0,
                                                                error,
                                                                MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
                                                                (LPTSTR)&buffer,
                                                                0,
                                                                NULL) == 0) {
                CString errorString = CStringUtil::print("%d", error);
                return CStringUtil::format(getString(hinstance, id).c_str(),
                                                        errorString.c_str());
        }
        else {
                CString result(buffer);
                LocalFree(buffer);
                return result;
        }
}