mirror of
https://github.com/greenshot/greenshot.git
synced 2025-01-09 15:23:03 -08:00
74 lines
2.7 KiB
C#
74 lines
2.7 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Runtime.InteropServices;
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using System.Text;
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using GreenshotPlugin.UnmanagedHelpers.Enums;
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namespace GreenshotPlugin.UnmanagedHelpers {
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public static class Win32 {
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[DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
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private static extern uint FormatMessage(uint dwFlags, IntPtr lpSource, uint dwMessageId, uint dwLanguageId, [Out] StringBuilder lpBuffer, int nSize, IntPtr arguments);
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[DllImport("kernel32.dll")]
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public static extern void SetLastError(uint dwErrCode);
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public static Win32Error GetLastErrorCode() {
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return (Win32Error)Marshal.GetLastWin32Error();
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}
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public static long GetHResult(Win32Error errorCode) {
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int error = (int)errorCode;
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if ((error & 0x80000000) == 0x80000000) {
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return error;
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}
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return 0x80070000 | (uint)(error & 0xffff);
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}
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public static string GetMessage(Win32Error errorCode) {
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StringBuilder buffer = new StringBuilder(0x100);
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if (FormatMessage(0x3200, IntPtr.Zero, (uint)errorCode, 0, buffer, buffer.Capacity, IntPtr.Zero) == 0) {
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return "Unknown error (0x" + ((int)errorCode).ToString("x") + ")";
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}
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StringBuilder result = new StringBuilder();
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int i = 0;
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while (i < buffer.Length) {
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if (!char.IsLetterOrDigit(buffer[i]) &&
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!char.IsPunctuation(buffer[i]) &&
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!char.IsSymbol(buffer[i]) &&
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!char.IsWhiteSpace(buffer[i]))
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break;
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result.Append(buffer[i]);
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i++;
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}
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return result.ToString().Replace("\r\n", string.Empty);
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}
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}
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}
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