Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / UIAutomation / Win32Providers / MS / Internal / AutomationProxies / WindowsFormsHelpers.cs / 1 / WindowsFormsHelpers.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: // This proxy is the base class for all proxies that support Windows // Forms controls. // All generic Windows Forms functionality goes here. // // History: // 07/01/2003 : a-jeanp Created //--------------------------------------------------------------------------- using System; using System.Text; using System.Collections; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Runtime.InteropServices; using MS.Win32; namespace MS.Internal.AutomationProxies { // Helper static class used by the Win32 proxies to get Winforms information static class WindowsFormsHelper { #region Proxy Create // Static Create method called by UIAutomation to create proxies for Winforms controls. // returns null if unsuccessful internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject) { // Currently there is an issue with CLR remoting that causes Accessible.CreateNativeFromEvent() to fail // for Winforms controls. Until that is resolved use AccessibleObjectFromWindow() instead. It will // return a Native IAccessble and not a OleAcc implementaion. Winforms does provide a Native IAccessible. Accessible acc = null; if (Accessible.AccessibleObjectFromWindow(hwnd, idObject, ref acc) != NativeMethods.S_OK || acc == null) { return null; } switch (acc.Role) { // =========================================================== // WinformsSpinner controls are not identifiable by classname or // other simple properties. The following case calls the // WinformsSpinner constructor which in turn tries to establish // the class of the control as a fact or returns null. case AccessibleRole.Combobox: return WinformsSpinner.Create( hwnd, idChild, idObject ); // =========================================================== case AccessibleRole.SpinButton: return WindowsUpDown.Create( hwnd, idChild, idObject ); case AccessibleRole.Grouping: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.GroupBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.StatusBar: WindowsStatusBar sb = new WindowsStatusBar(hwnd, null, 0, acc); if (sb == null) { return null; } return idChild == NativeMethods.CHILD_SELF ? sb : sb.CreateStatusBarPane(idChild); default: break; } return null; } // Static Create method called by UIAutomation to create a Button proxy for Winforms Buttons. // returns null if unsuccessful internal static IRawElementProviderSimple CreateButton(IntPtr hwnd) { // Currently there is an issue with CLR remoting that causes Accessible.CreateNativeFromEvent() to fail // for Winforms controls. Until that is resolved use AccessibleObjectFromWindow() instead. It will // return a Native IAccessble and not a OleAcc implementaion. Winforms does provide a Native IAccessible. Accessible acc = null; if (Accessible.AccessibleObjectFromWindow(hwnd, NativeMethods.OBJID_CLIENT, ref acc) != NativeMethods.S_OK || acc == null) { return null; } switch (acc.Role) { case AccessibleRole.CheckButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.CheckBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.Grouping: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.GroupBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.PushButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.PushButton, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.RadioButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.RadioButton, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); default: break; } return null; } #endregion #region Internal Methods // ------------------------------------------------------ // // Internal Methods // // ----------------------------------------------------- // Checks if an hwnd is a winform. // Returns True/False if the hwnd is a winform. static internal FormControlState GetControlState(IntPtr hwnd) { return IsWindowsFormsControl(hwnd) ? FormControlState.True : FormControlState.False; } // Checks if an a class name is a winform classname. // Returns True/False if the classname is a winform. static internal bool IsWindowsFormsControl(string className) { return className.IndexOf(_WindowsFormsClassName, StringComparison.OrdinalIgnoreCase) > -1; } // Checks if an a class name is a winform classname. // Returns True/False if the classname is a winform. static internal bool IsWindowsFormsControl(IntPtr hwnd) { return IsWindowsFormsControl(Misc.GetClassName(hwnd)); } static internal bool IsWindowsFormsControl(IntPtr hwnd, ref FormControlState state) { if (state == FormControlState.Undeterminate) { state = GetControlState(hwnd); } return state == FormControlState.True ? true : false; } // The control name is the only real "Persistent" ID in Windows Forms static internal string WindowsFormsID(IntPtr hwnd) { return GetControlName(hwnd); } // Extract the internal Name property of the Windows Forms control using // the WM_GETCONTROLNAME message. static internal string GetControlName(IntPtr hwnd) { string winFormsID = ""; if (XSendMessage.XSend(hwnd, WM_GETCONTROLNAME, new IntPtr(Misc.MaxLengthNameProperty), ref winFormsID, Misc.MaxLengthNameProperty)) { return winFormsID; } return null; } #endregion #region Internal Fields // ------------------------------------------------------ // // Internal Fields // // ------------------------------------------------------ // The different states for figurating out if an hwnd is a winform. // Underminate implies value not set yet. Must call GetControlState, // otherwise the state is cached. internal enum FormControlState { Undeterminate, False, True, } #endregion #region Private Fields // ----------------------------------------------------- // // Private Fields // // ------------------------------------------------------ // Use this string to determine if this is a Windows Forms control or not private const string _WindowsFormsClassName = "windowsforms"; // Private Message to know the underlying name for a control private static int WM_GETCONTROLNAME = Misc.RegisterWindowMessage("WM_GETCONTROLNAME"); #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: // This proxy is the base class for all proxies that support Windows // Forms controls. // All generic Windows Forms functionality goes here. // // History: // 07/01/2003 : a-jeanp Created //--------------------------------------------------------------------------- using System; using System.Text; using System.Collections; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Runtime.InteropServices; using MS.Win32; namespace MS.Internal.AutomationProxies { // Helper static class used by the Win32 proxies to get Winforms information static class WindowsFormsHelper { #region Proxy Create // Static Create method called by UIAutomation to create proxies for Winforms controls. // returns null if unsuccessful internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject) { // Currently there is an issue with CLR remoting that causes Accessible.CreateNativeFromEvent() to fail // for Winforms controls. Until that is resolved use AccessibleObjectFromWindow() instead. It will // return a Native IAccessble and not a OleAcc implementaion. Winforms does provide a Native IAccessible. Accessible acc = null; if (Accessible.AccessibleObjectFromWindow(hwnd, idObject, ref acc) != NativeMethods.S_OK || acc == null) { return null; } switch (acc.Role) { // =========================================================== // WinformsSpinner controls are not identifiable by classname or // other simple properties. The following case calls the // WinformsSpinner constructor which in turn tries to establish // the class of the control as a fact or returns null. case AccessibleRole.Combobox: return WinformsSpinner.Create( hwnd, idChild, idObject ); // =========================================================== case AccessibleRole.SpinButton: return WindowsUpDown.Create( hwnd, idChild, idObject ); case AccessibleRole.Grouping: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.GroupBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.StatusBar: WindowsStatusBar sb = new WindowsStatusBar(hwnd, null, 0, acc); if (sb == null) { return null; } return idChild == NativeMethods.CHILD_SELF ? sb : sb.CreateStatusBarPane(idChild); default: break; } return null; } // Static Create method called by UIAutomation to create a Button proxy for Winforms Buttons. // returns null if unsuccessful internal static IRawElementProviderSimple CreateButton(IntPtr hwnd) { // Currently there is an issue with CLR remoting that causes Accessible.CreateNativeFromEvent() to fail // for Winforms controls. Until that is resolved use AccessibleObjectFromWindow() instead. It will // return a Native IAccessble and not a OleAcc implementaion. Winforms does provide a Native IAccessible. Accessible acc = null; if (Accessible.AccessibleObjectFromWindow(hwnd, NativeMethods.OBJID_CLIENT, ref acc) != NativeMethods.S_OK || acc == null) { return null; } switch (acc.Role) { case AccessibleRole.CheckButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.CheckBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.Grouping: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.GroupBox, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.PushButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.PushButton, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); case AccessibleRole.RadioButton: return new WindowsButton(hwnd, null, WindowsButton.ButtonType.RadioButton, Misc.GetWindowStyle(hwnd) & NativeMethods.BS_TYPEMASK, acc); default: break; } return null; } #endregion #region Internal Methods // ------------------------------------------------------ // // Internal Methods // // ----------------------------------------------------- // Checks if an hwnd is a winform. // Returns True/False if the hwnd is a winform. static internal FormControlState GetControlState(IntPtr hwnd) { return IsWindowsFormsControl(hwnd) ? FormControlState.True : FormControlState.False; } // Checks if an a class name is a winform classname. // Returns True/False if the classname is a winform. static internal bool IsWindowsFormsControl(string className) { return className.IndexOf(_WindowsFormsClassName, StringComparison.OrdinalIgnoreCase) > -1; } // Checks if an a class name is a winform classname. // Returns True/False if the classname is a winform. static internal bool IsWindowsFormsControl(IntPtr hwnd) { return IsWindowsFormsControl(Misc.GetClassName(hwnd)); } static internal bool IsWindowsFormsControl(IntPtr hwnd, ref FormControlState state) { if (state == FormControlState.Undeterminate) { state = GetControlState(hwnd); } return state == FormControlState.True ? true : false; } // The control name is the only real "Persistent" ID in Windows Forms static internal string WindowsFormsID(IntPtr hwnd) { return GetControlName(hwnd); } // Extract the internal Name property of the Windows Forms control using // the WM_GETCONTROLNAME message. static internal string GetControlName(IntPtr hwnd) { string winFormsID = ""; if (XSendMessage.XSend(hwnd, WM_GETCONTROLNAME, new IntPtr(Misc.MaxLengthNameProperty), ref winFormsID, Misc.MaxLengthNameProperty)) { return winFormsID; } return null; } #endregion #region Internal Fields // ------------------------------------------------------ // // Internal Fields // // ------------------------------------------------------ // The different states for figurating out if an hwnd is a winform. // Underminate implies value not set yet. Must call GetControlState, // otherwise the state is cached. internal enum FormControlState { Undeterminate, False, True, } #endregion #region Private Fields // ----------------------------------------------------- // // Private Fields // // ------------------------------------------------------ // Use this string to determine if this is a Windows Forms control or not private const string _WindowsFormsClassName = "windowsforms"; // Private Message to know the underlying name for a control private static int WM_GETCONTROLNAME = Misc.RegisterWindowMessage("WM_GETCONTROLNAME"); #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SchemaImporterExtension.cs
- AssemblyBuilder.cs
- Inflater.cs
- ConsoleEntryPoint.cs
- ConfigurationSection.cs
- FileCodeGroup.cs
- DataTableTypeConverter.cs
- WebBrowserProgressChangedEventHandler.cs
- LoginView.cs
- LayoutTableCell.cs
- _NegotiateClient.cs
- RecipientInfo.cs
- MD5CryptoServiceProvider.cs
- Stroke2.cs
- UserPreferenceChangedEventArgs.cs
- StructuralObject.cs
- MemberHolder.cs
- TraceSection.cs
- ProxyManager.cs
- SyntaxCheck.cs
- TileModeValidation.cs
- UIElement.cs
- DbMetaDataColumnNames.cs
- MemoryFailPoint.cs
- MiniParameterInfo.cs
- DesignerLabelAdapter.cs
- ShowExpandedMultiValueConverter.cs
- BaseTemplateBuildProvider.cs
- UrlMappingCollection.cs
- SplitterEvent.cs
- WorkflowRuntimeBehavior.cs
- cache.cs
- HttpResponseWrapper.cs
- ControlAdapter.cs
- Trace.cs
- UserControlBuildProvider.cs
- NumericUpDownAcceleration.cs
- XsdValidatingReader.cs
- SpotLight.cs
- XmlWrappingWriter.cs
- InputProcessorProfilesLoader.cs
- DataObjectMethodAttribute.cs
- InputScopeAttribute.cs
- PrefixHandle.cs
- AssemblyInfo.cs
- OuterGlowBitmapEffect.cs
- StringSource.cs
- DesignerLoader.cs
- DataObjectMethodAttribute.cs
- DataSetMappper.cs
- DialogResultConverter.cs
- RelationshipConverter.cs
- UserControlCodeDomTreeGenerator.cs
- PaintValueEventArgs.cs
- RsaSecurityToken.cs
- WebZoneDesigner.cs
- AnnotationHelper.cs
- TextServicesContext.cs
- _TransmitFileOverlappedAsyncResult.cs
- AmbientLight.cs
- BitmapEffectDrawingContextWalker.cs
- RequestCachingSection.cs
- _LocalDataStoreMgr.cs
- Attribute.cs
- XmlSchemaSimpleTypeUnion.cs
- CommonObjectSecurity.cs
- ExecutionContext.cs
- Enlistment.cs
- SessionParameter.cs
- SettingsPropertyWrongTypeException.cs
- PolyLineSegment.cs
- pingexception.cs
- RestHandlerFactory.cs
- HtmlWindow.cs
- CfgParser.cs
- MainMenu.cs
- StorageInfo.cs
- Image.cs
- webproxy.cs
- SQLGuid.cs
- XmlArrayAttribute.cs
- TableAdapterManagerGenerator.cs
- DbConnectionClosed.cs
- HostingEnvironmentException.cs
- NamespaceEmitter.cs
- UnicodeEncoding.cs
- HttpStreams.cs
- XamlReader.cs
- OLEDB_Enum.cs
- TableAdapterManagerNameHandler.cs
- WindowsStartMenu.cs
- StaticDataManager.cs
- SurrogateEncoder.cs
- IncomingWebResponseContext.cs
- ExcCanonicalXml.cs
- ActivationArguments.cs
- CacheRequest.cs
- DataContext.cs
- Function.cs
- ThreadExceptionEvent.cs