Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / ListViewInsertionMark.cs / 1305376 / ListViewInsertionMark.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Drawing; using System.Runtime.InteropServices; using System.Diagnostics; namespace System.Windows.Forms { ////// /// public sealed class ListViewInsertionMark { private ListView listView; private int index = 0; private Color color = Color.Empty; private bool appearsAfterItem = false; internal ListViewInsertionMark(ListView listView) { this.listView = listView; } ////// Encapsulates insertion-mark information /// ////// /// Specifies whether the insertion mark appears /// after the item - otherwise it appears /// before the item (the default). /// /// public bool AppearsAfterItem { get { return appearsAfterItem; } set { if (appearsAfterItem != value) { appearsAfterItem = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Returns bounds of the insertion-mark. /// /// public Rectangle Bounds { get { NativeMethods.RECT rect = new NativeMethods.RECT(); listView.SendMessage(NativeMethods.LVM_GETINSERTMARKRECT, 0, ref rect); return Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom); } } ////// /// The color of the insertion-mark. /// /// public Color Color { get { if (color.IsEmpty) { color = SafeNativeMethods.ColorFromCOLORREF((int)listView.SendMessage(NativeMethods.LVM_GETINSERTMARKCOLOR, 0, 0)); } return color; } set { if (color != value) { color = value; if (listView.IsHandleCreated) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } ////// /// Item next to which the insertion-mark appears. /// /// public int Index { get { return index; } set { if (index != value) { index = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Performs a hit-test at the specified insertion point /// and returns the closest item. /// /// public int NearestIndex(Point pt) { NativeMethods.POINT point = new NativeMethods.POINT(); point.x = pt.X; point.y = pt.Y; NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_INSERTMARKHITTEST, point, lvInsertMark); return lvInsertMark.iItem; } internal void UpdateListView() { Debug.Assert(listView.IsHandleCreated, "ApplySavedState Precondition: List-view handle must be created"); NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); lvInsertMark.dwFlags = appearsAfterItem ? NativeMethods.LVIM_AFTER : 0; lvInsertMark.iItem = index; UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_SETINSERTMARK, 0, lvInsertMark); if (!color.IsEmpty) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System.Drawing; using System.Runtime.InteropServices; using System.Diagnostics; namespace System.Windows.Forms { ////// /// public sealed class ListViewInsertionMark { private ListView listView; private int index = 0; private Color color = Color.Empty; private bool appearsAfterItem = false; internal ListViewInsertionMark(ListView listView) { this.listView = listView; } ////// Encapsulates insertion-mark information /// ////// /// Specifies whether the insertion mark appears /// after the item - otherwise it appears /// before the item (the default). /// /// public bool AppearsAfterItem { get { return appearsAfterItem; } set { if (appearsAfterItem != value) { appearsAfterItem = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Returns bounds of the insertion-mark. /// /// public Rectangle Bounds { get { NativeMethods.RECT rect = new NativeMethods.RECT(); listView.SendMessage(NativeMethods.LVM_GETINSERTMARKRECT, 0, ref rect); return Rectangle.FromLTRB(rect.left, rect.top, rect.right, rect.bottom); } } ////// /// The color of the insertion-mark. /// /// public Color Color { get { if (color.IsEmpty) { color = SafeNativeMethods.ColorFromCOLORREF((int)listView.SendMessage(NativeMethods.LVM_GETINSERTMARKCOLOR, 0, 0)); } return color; } set { if (color != value) { color = value; if (listView.IsHandleCreated) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } ////// /// Item next to which the insertion-mark appears. /// /// public int Index { get { return index; } set { if (index != value) { index = value; if (listView.IsHandleCreated) { UpdateListView(); } } } } ////// /// Performs a hit-test at the specified insertion point /// and returns the closest item. /// /// public int NearestIndex(Point pt) { NativeMethods.POINT point = new NativeMethods.POINT(); point.x = pt.X; point.y = pt.Y; NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_INSERTMARKHITTEST, point, lvInsertMark); return lvInsertMark.iItem; } internal void UpdateListView() { Debug.Assert(listView.IsHandleCreated, "ApplySavedState Precondition: List-view handle must be created"); NativeMethods.LVINSERTMARK lvInsertMark = new NativeMethods.LVINSERTMARK(); lvInsertMark.dwFlags = appearsAfterItem ? NativeMethods.LVIM_AFTER : 0; lvInsertMark.iItem = index; UnsafeNativeMethods.SendMessage(new HandleRef(listView, listView.Handle), NativeMethods.LVM_SETINSERTMARK, 0, lvInsertMark); if (!color.IsEmpty) { listView.SendMessage(NativeMethods.LVM_SETINSERTMARKCOLOR, 0, SafeNativeMethods.ColorToCOLORREF(color)); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- WebPartConnectionsConnectVerb.cs
- InteropAutomationProvider.cs
- CacheOutputQuery.cs
- FixedDSBuilder.cs
- WindowsFormsHost.cs
- TypeElement.cs
- SqlNodeAnnotation.cs
- EncodingDataItem.cs
- FontStretchConverter.cs
- BackgroundWorker.cs
- CriticalFinalizerObject.cs
- KoreanLunisolarCalendar.cs
- OdbcErrorCollection.cs
- SiteMapNode.cs
- OleDbError.cs
- HScrollProperties.cs
- ControlParser.cs
- LayoutSettings.cs
- CAGDesigner.cs
- MLangCodePageEncoding.cs
- PromptStyle.cs
- ClientSettingsStore.cs
- CompilerGlobalScopeAttribute.cs
- LexicalChunk.cs
- FrameworkObject.cs
- ContainerUIElement3D.cs
- Operator.cs
- SafeNativeMethods.cs
- SerializationStore.cs
- WinEventQueueItem.cs
- CryptoProvider.cs
- ComplexPropertyEntry.cs
- InkPresenter.cs
- Domain.cs
- Touch.cs
- DataGridSortingEventArgs.cs
- XPathDocumentIterator.cs
- ListBase.cs
- MemberNameValidator.cs
- ObjectComplexPropertyMapping.cs
- ConsumerConnectionPointCollection.cs
- StdValidatorsAndConverters.cs
- CallContext.cs
- BamlBinaryWriter.cs
- DuplexClientBase.cs
- Margins.cs
- MenuItemCollectionEditorDialog.cs
- PipeSecurity.cs
- EllipseGeometry.cs
- RuleRef.cs
- LazyTextWriterCreator.cs
- DataTrigger.cs
- ProfileBuildProvider.cs
- InvokeProviderWrapper.cs
- PackUriHelper.cs
- SimpleBitVector32.cs
- ToolStrip.cs
- GcSettings.cs
- RestClientProxyHandler.cs
- ServiceEndpoint.cs
- FixedHyperLink.cs
- ValidatedControlConverter.cs
- TreeIterators.cs
- DbConnectionHelper.cs
- WizardStepCollectionEditor.cs
- ChtmlCalendarAdapter.cs
- IDispatchConstantAttribute.cs
- BookmarkEventArgs.cs
- XmlCharType.cs
- WebPartDisplayMode.cs
- AudioFormatConverter.cs
- EmptyElement.cs
- StandardBindingElementCollection.cs
- DATA_BLOB.cs
- TemplateComponentConnector.cs
- TextDecoration.cs
- SqlBooleanizer.cs
- CalendarKeyboardHelper.cs
- OfTypeExpression.cs
- ControlDesignerState.cs
- CfgSemanticTag.cs
- MeshGeometry3D.cs
- XmlEnumAttribute.cs
- SrgsRule.cs
- OperatingSystem.cs
- HtmlShimManager.cs
- Path.cs
- ApplicationInfo.cs
- QEncodedStream.cs
- CellRelation.cs
- CodeThrowExceptionStatement.cs
- RegexCode.cs
- PersonalizationDictionary.cs
- CompilerGlobalScopeAttribute.cs
- BindingNavigatorDesigner.cs
- HttpStreamMessageEncoderFactory.cs
- SelectionProviderWrapper.cs
- MailMessage.cs
- _HeaderInfo.cs
- ComponentResourceKey.cs