Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / AccessibleTech / longhorn / Automation / Win32Providers / MS / Internal / AutomationProxies / WindowsProgressbar.cs / 1 / WindowsProgressbar.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: HWND-based ProgressBar Proxy // // History: // [....]. Created // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Text; using System.ComponentModel; using System.Windows.Automation; using System.Windows.Automation.Provider; using System.Windows; using MS.Win32; namespace MS.Internal.AutomationProxies { class WindowsProgressBar: ProxyHwnd, IRangeValueProvider { // ----------------------------------------------------- // // Constructors // // ----------------------------------------------------- #region Constructors WindowsProgressBar (IntPtr hwnd, ProxyFragment parent, int item) : base( hwnd, parent, item ) { _cControlType = ControlType.ProgressBar; // support for events _createOnEvent = new WinEventTracker.ProxyRaiseEvents (RaiseEvents); } #endregion #region Proxy Create // Static Create method called by UIAutomation to create this proxy. // returns null if unsuccessful internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild, int idObject) { return Create(hwnd, idChild); } private static IRawElementProviderSimple Create(IntPtr hwnd, int idChild) { // Something is wrong if idChild is not zero if (idChild != 0) { System.Diagnostics.Debug.Assert (idChild == 0, "Invalid Child Id, idChild != 0"); throw new ArgumentOutOfRangeException("idChild", idChild, SR.Get(SRID.ShouldBeZero)); } return new WindowsProgressBar(hwnd, null, 0); } // Static Create method called by the event tracker system // WinEvents are raise because items exist. So it makes sense to create the item and // check for details afterward. internal static void RaiseEvents (IntPtr hwnd, int eventId, object idProp, int idObject, int idChild) { if (idObject != NativeMethods.OBJID_VSCROLL && idObject != NativeMethods.OBJID_HSCROLL) { WindowsProgressBar wtv = new WindowsProgressBar (hwnd, null, 0); wtv.DispatchEvents (eventId, idProp, idObject, idChild); } } #endregion //------------------------------------------------------ // // Patterns Implementation // //----------------------------------------------------- #region ProxySimple Interface // Returns a pattern interface if supported. internal override object GetPatternProvider (AutomationPattern iid) { return (iid == RangeValuePattern.Pattern) ? this : null; } #endregion #region RangeValue Pattern void IRangeValueProvider.SetValue (double val) { //This proxy is readonly throw new InvalidOperationException(SR.Get(SRID.ValueReadonly)); } // Request to get the value that this UI element is representing in a native format double IRangeValueProvider.Value { get { return (double)ValuePercent; } } bool IRangeValueProvider.IsReadOnly { get { return true; } } double IRangeValueProvider.Maximum { get { return (double) 100; } } double IRangeValueProvider.Minimum { get { return (double) 0; } } double IRangeValueProvider.SmallChange { get { return Double.NaN; } } double IRangeValueProvider.LargeChange { get { return Double.NaN; } } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods #region Value pattern helper private int ValuePercent { get { int cur = Misc.ProxySendMessageInt(_hwnd, NativeMethods.PBM_GETPOS, IntPtr.Zero, IntPtr.Zero); int min = Misc.ProxySendMessageInt(_hwnd, NativeMethods.PBM_GETRANGE, new IntPtr(1), IntPtr.Zero); int max = Misc.ProxySendMessageInt(_hwnd, NativeMethods.PBM_GETRANGE, IntPtr.Zero, IntPtr.Zero); int actualCur = cur - min; int range = max - min; return ((range != 0) ? (int)((100 * actualCur + range / 2) / range) : 0); } } #endregion #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
- RecognizerInfo.cs
- SqlMetaData.cs
- UIElement3D.cs
- EpmAttributeNameBuilder.cs
- MatrixStack.cs
- IgnorePropertiesAttribute.cs
- IisTraceWebEventProvider.cs
- EastAsianLunisolarCalendar.cs
- ScrollViewerAutomationPeer.cs
- tooltip.cs
- ToolStripArrowRenderEventArgs.cs
- DBConnection.cs
- PropertyTabAttribute.cs
- ObjectTag.cs
- ProcessRequestArgs.cs
- StrokeNode.cs
- TableLayoutStyle.cs
- ErrorStyle.cs
- EndpointInfo.cs
- WebConfigurationHost.cs
- Int32CAMarshaler.cs
- WebAdminConfigurationHelper.cs
- LoadItemsEventArgs.cs
- JsonGlobals.cs
- XPathNodeHelper.cs
- Metadata.cs
- loginstatus.cs
- StringInfo.cs
- TextEditorSelection.cs
- ErrorWrapper.cs
- SmtpFailedRecipientsException.cs
- ByteStack.cs
- RegexWriter.cs
- ProcessModelSection.cs
- GeometryConverter.cs
- TreeViewEvent.cs
- SamlAudienceRestrictionCondition.cs
- HTTPNotFoundHandler.cs
- CheckBox.cs
- WinCategoryAttribute.cs
- CapabilitiesUse.cs
- CompositeControl.cs
- PingReply.cs
- ClientEventManager.cs
- SqlRowUpdatedEvent.cs
- MsmqOutputSessionChannel.cs
- StylusDownEventArgs.cs
- LocalValueEnumerator.cs
- SqlConnectionString.cs
- SQLInt64Storage.cs
- DoubleAnimationClockResource.cs
- SinglePageViewer.cs
- BindingBase.cs
- RuleSettingsCollection.cs
- BrowserDefinitionCollection.cs
- BaseAddressElement.cs
- GlyphTypeface.cs
- Section.cs
- FileDialogCustomPlacesCollection.cs
- DifferencingCollection.cs
- SerializerDescriptor.cs
- WorkflowApplicationIdleEventArgs.cs
- GACMembershipCondition.cs
- CustomWebEventKey.cs
- LambdaCompiler.Expressions.cs
- WebPartCloseVerb.cs
- HttpCacheVaryByContentEncodings.cs
- ResXBuildProvider.cs
- ControlAdapter.cs
- Light.cs
- FlowLayout.cs
- GPPOINTF.cs
- Timer.cs
- DelegateBodyWriter.cs
- BooleanFacetDescriptionElement.cs
- SafeTokenHandle.cs
- DataGridRowHeaderAutomationPeer.cs
- localization.cs
- StorageScalarPropertyMapping.cs
- HttpGetProtocolReflector.cs
- QilFactory.cs
- TextTreeObjectNode.cs
- ProviderIncompatibleException.cs
- versioninfo.cs
- ContainsRowNumberChecker.cs
- WebConfigurationManager.cs
- DataStreams.cs
- MissingFieldException.cs
- HtmlInputFile.cs
- ErrorWebPart.cs
- GrammarBuilderRuleRef.cs
- BrowserCapabilitiesCompiler.cs
- PropertyChangeTracker.cs
- HandlerFactoryCache.cs
- DefaultWorkflowSchedulerService.cs
- OdbcError.cs
- WhitespaceRule.cs
- ClientTargetCollection.cs
- QueuePropertyVariants.cs
- Update.cs