public static string GetWindowTextRaw(IntPtr hwnd) { var length = (int)WindowsApi.SendMessage(hwnd, WindowsApi.WM_GETTEXTLENGTH, IntPtr.Zero, IntPtr.Zero); var sb = new StringBuilder(length + 1); WindowsApi.SendMessage(hwnd, WindowsApi.WM_GETTEXT, (IntPtr)sb.Capacity, sb); return(sb.ToString()); }
public void CheckItem(int itemIndex) { var lvi = new WindowsApi.LVITEM { iItem = itemIndex, iSubItem = 0, stateMask = 8192, //TODO: Replace these with the proper constants state = 8192, }; using (var structBuffer = ProcessMemoryChunk.AllocStruct(process, lvi)) { if (WindowsApi.SendMessage(handle, WindowsApi.LVM_SETITEMSTATE, (IntPtr)itemIndex, structBuffer.Location) == IntPtr.Zero) { throw new Exception("Couldn't set list item state"); } } }
/// <remarks> /// Taken from https://github.com/kvakulo/Switcheroo/blob/master/ManagedWinapi/SystemListView.cs#L75 /// </remarks> public IEnumerable <string> GetListItems() { var listViewItemCount = (int)WindowsApi.SendMessage(handle, WindowsApi.LVM_GETITEMCOUNT, IntPtr.Zero, IntPtr.Zero); for (var i = 0; i < listViewItemCount; ++i) { var lvi = new WindowsApi.LVITEM { cchTextMax = 512, iItem = i, iSubItem = 0, stateMask = 0xffffffff, mask = WindowsApi.LVIF_STATE | WindowsApi.LVIF_TEXT, }; using (var textBuffer = ProcessMemoryChunk.Alloc(process, lvi.cchTextMax * 2 /* Assuming 2-byte character size just in case */)) { lvi.pszText = textBuffer.Location; using (var structBuffer = ProcessMemoryChunk.AllocStruct(process, lvi)) { if (WindowsApi.SendMessage(handle, WindowsApi.LVM_GETITEM, IntPtr.Zero, structBuffer.Location) == IntPtr.Zero) { throw new Exception("Couldn't get list item"); } lvi = (WindowsApi.LVITEM)structBuffer.ReadToStructure(0, typeof(WindowsApi.LVITEM)); } //TODO: Check if pszText pointer location changed var titleBytes = textBuffer.Read(); var title = Encoding.Default.GetString(titleBytes); if (title.IndexOf('\0') != -1) { title = title.Substring(0, title.IndexOf('\0')); } yield return(title); } } }
/// <param name="browser"></param> /// <exception cref="EnvironmentException"> /// When there is a problem with either <paramref name="browser"/> or the hosting environment. /// </exception> public static void Set(Browser browser) { // In Windows 10 version 1803, the old control-panel-style Default Programs screen has been replaced with a new one inside the Windows 10 settings app. // However, the Windows 10 settings app cannot be automated without the user seeing it or interacting with it, so that option is unreliable. // Fortunately, someone else has written a better alternative to this app (http://kolbi.cz/blog/?p=396). // So for these reasons, this app won't support this or later versions of Windows. if (OsInfo.Windows10Version >= 1803) { throw new EnvironmentException($"This app no longer works in this version of Windows."); } // This is needed since the control panel applet can crash if you give it an empty browser name if (String.IsNullOrWhiteSpace(browser.UniqueApplicationName)) { throw new EnvironmentException($"The given browser's unique application name is blank."); } using (var desktop = new Desktop("Default Browser Changer")) { var encodedBrowserName = Uri.EscapeDataString(browser.UniqueApplicationName); var desktopProcess = new DesktopProcess(@"control.exe /name Microsoft.DefaultPrograms /page pageDefaultProgram\pageAdvancedSettings?pszAppName=" + encodedBrowserName, desktop.Name); var exitCode = Wait(() => desktopProcess.GetExitCode()); //TODO: Replace this with WaitForSingleObject if (exitCode != 1) //Control.exe always returns 1 regardless of whether it had valid arguments. { throw new Exception("control.exe returned " + exitCode); } using (new DesktopContext(desktop.Handle)) { IntPtr window; try { // The window is located by class name rather than caption since the caption is locale-dependent. window = Wait(() => WindowsApi.FindWindow("CabinetWClass" /* Windows Explorer */, IntPtr.Zero)); } catch (TimeoutException timeout) { throw new EnvironmentException("The control panel applet didn't open. Try logging out and then logging in again.", timeout); } try { var listViewHandle = Wait(() => { var matches = FindDescendantsBy(window, className: "SysListView32"); var expectedListBoxCount = 1; if (matches.Count > expectedListBoxCount) { throw new Exception($"Found {matches.Count} list box(es), but expected {expectedListBoxCount}."); } return(matches.FirstOrDefault()); }); var listView = new ListView(listViewHandle); var save = Wait(() => { var matches = FindDescendantsBy(window, className: "Button"); if (matches.Count == 0) { return(default(IntPtr)); } var expectedButtonCount = 3; // Select All, Save, Cancel if (matches.Count != expectedButtonCount) { throw new Exception($"Found {matches} button(s), but expected {expectedButtonCount}."); } return(matches[1]); }); var browserAssociations = browser.Associations .Intersect(new[] { ".htm", ".html", "HTTP", "HTTPS" }, StringComparer.OrdinalIgnoreCase) .ToArray(); int[] checkboxIndices; try { checkboxIndices = Wait(() => { var itemIndices = ( from item in listView.GetListItems().Select((text, index) => new { text, index }) where browserAssociations.Contains(item.text, StringComparer.InvariantCultureIgnoreCase) select item.index ).ToArray(); if (itemIndices.Length < browserAssociations.Length) { return(null); } else { return(itemIndices); } }); } catch (TimeoutException timeout) { throw new EnvironmentException($"Didn't find all of the following extensions and protocols: {String.Join(", ", browserAssociations)}.", timeout); } foreach (var i in checkboxIndices) { listView.CheckItem(i); } WindowsApi.SendMessage(save, WindowsApi.BM_CLICK, IntPtr.Zero, IntPtr.Zero); } finally { WindowsApi.SendMessage(window, WindowsApi.WM_CLOSE, IntPtr.Zero, IntPtr.Zero); //Just in case it doesn't close itself } } } }
/// <param name="browser"></param> /// <exception cref="EnvironmentException"> /// When there is a problem with either <paramref name="browser"/> or the hosting environment. /// </exception> public static void Set(Browser browser) { // This is needed since the control panel applet can crash if you give it an empty browser name if (String.IsNullOrWhiteSpace(browser.UniqueApplicationName)) { throw new EnvironmentException($"The given browser's unique application name is blank."); } using (var desktop = new Desktop("Default Browser Changer")) { var encodedBrowserName = Uri.EscapeDataString(browser.UniqueApplicationName); var desktopProcess = new DesktopProcess(@"control.exe /name Microsoft.DefaultPrograms /page pageDefaultProgram\pageAdvancedSettings?pszAppName=" + encodedBrowserName, desktop.Name); var exitCode = Wait(() => desktopProcess.GetExitCode()); //TODO: Replace this with WaitForSingleObject if (exitCode != 1) //Control.exe always returns 1 regardless of whether it had valid arguments. { throw new Exception("control.exe returned " + exitCode); } using (new DesktopContext(desktop.Handle)) { IntPtr window; try { window = Wait(() => WindowsApi.FindWindow(IntPtr.Zero, "Set Program Associations")); } catch (TimeoutException timeout) { throw new EnvironmentException("The control panel applet didn't open. Try logging out and then logging in again.", timeout); } try { var listViewHandle = Wait(() => FindDescendantBy(window, className: "SysListView32")); var listView = new ListView(listViewHandle); var save = Wait(() => FindDescendantBy(window, text: "Save")); var browserAssociations = browser.Associations .Intersect(new[] { ".htm", ".html", "HTTP", "HTTPS" }, StringComparer.OrdinalIgnoreCase) .ToArray(); int[] checkboxIndices; try { checkboxIndices = Wait(() => { var itemIndices = ( from item in listView.GetListItems().Select((text, index) => new { text, index }) where browserAssociations.Contains(item.text, StringComparer.InvariantCultureIgnoreCase) select item.index ).ToArray(); if (itemIndices.Length < browserAssociations.Length) { return(null); } else { return(itemIndices); } }); } catch (TimeoutException timeout) { throw new EnvironmentException($"Didn't find all of the following extensions and protocols: {String.Join(", ", browserAssociations)}.", timeout); } foreach (var i in checkboxIndices) { listView.CheckItem(i); } WindowsApi.SendMessage(save, WindowsApi.BM_CLICK, IntPtr.Zero, IntPtr.Zero); } finally { WindowsApi.SendMessage(window, WindowsApi.WM_CLOSE, IntPtr.Zero, IntPtr.Zero); //Just in case it doesn't close itself } } } }