mirror of
https://github.com/greenshot/greenshot.git
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26fe579d31
Removed a lot of dead code, and remove the old OCR code as we don't even know if it still works.
97 lines
3.3 KiB
C#
97 lines
3.3 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 GreenshotPlugin.UnmanagedHelpers;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace GreenshotPlugin.Core {
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/// <summary>
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/// EnumWindows wrapper for .NET
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/// </summary>
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public class WindowsEnumerator {
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/// <summary>
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/// Returns the collection of windows returned by GetWindows
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/// </summary>
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public IList<WindowDetails> Items { get; private set; }
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/// <summary>
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/// Gets all child windows of the specified window
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/// </summary>
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/// <param name="hWndParent">Window Handle to get children for</param>
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/// <param name="classname">Window Classname to copy, use null to copy all</param>
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public WindowsEnumerator GetWindows(IntPtr hWndParent, string classname) {
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Items = new List<WindowDetails>();
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User32.EnumChildWindows(hWndParent, WindowEnum, IntPtr.Zero);
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bool hasParent = !IntPtr.Zero.Equals(hWndParent);
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string parentText = null;
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if (hasParent) {
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var title = new StringBuilder(260, 260);
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User32.GetWindowText(hWndParent, title, title.Capacity);
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parentText = title.ToString();
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}
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var windows = new List<WindowDetails>();
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foreach (var window in Items) {
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if (hasParent) {
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window.Text = parentText;
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window.ParentHandle = hWndParent;
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}
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if (classname == null || window.ClassName.Equals(classname)) {
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windows.Add(window);
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}
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}
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Items = windows;
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return this;
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}
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/// <summary>
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/// The enum Windows callback.
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/// </summary>
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/// <param name="hWnd">Window Handle</param>
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/// <param name="lParam">Application defined value</param>
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/// <returns>1 to continue enumeration, 0 to stop</returns>
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private int WindowEnum(IntPtr hWnd, int lParam)
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{
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return OnWindowEnum(hWnd) ? 1 : 0;
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}
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/// <summary>
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/// Called whenever a new window is about to be added
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/// by the Window enumeration called from GetWindows.
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/// If overriding this function, return true to continue
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/// enumeration or false to stop. If you do not call
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/// the base implementation the Items collection will
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/// be empty.
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/// </summary>
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/// <param name="hWnd">Window handle to add</param>
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/// <returns>True to continue enumeration, False to stop</returns>
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private bool OnWindowEnum(IntPtr hWnd) {
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if (!WindowDetails.IsIgnoreHandle(hWnd)) {
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Items.Add(new WindowDetails(hWnd));
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}
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return true;
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}
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}
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}
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