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
- InvariantComparer.cs
- ConnectivityStatus.cs
- RawMouseInputReport.cs
- XmlAtomErrorReader.cs
- SQLSingle.cs
- Walker.cs
- Group.cs
- DataGridCellItemAutomationPeer.cs
- HostingEnvironment.cs
- C14NUtil.cs
- AuthorizationSection.cs
- FacetValueContainer.cs
- ObjectDataSourceView.cs
- ObjectQueryProvider.cs
- HttpHandlerActionCollection.cs
- FlowDocument.cs
- XslTransformFileEditor.cs
- CacheOutputQuery.cs
- GridItemCollection.cs
- UncommonField.cs
- ExceptQueryOperator.cs
- DesignerObject.cs
- ResourceManager.cs
- NegationPusher.cs
- InfoCardRSACryptoProvider.cs
- XmlSerializableReader.cs
- _AcceptOverlappedAsyncResult.cs
- SymbolMethod.cs
- Visual3DCollection.cs
- RecognitionResult.cs
- ThemeableAttribute.cs
- PnrpPermission.cs
- BitmapScalingModeValidation.cs
- QualifierSet.cs
- ListViewCancelEventArgs.cs
- PerformanceCounterCategory.cs
- Context.cs
- HtmlProps.cs
- LineUtil.cs
- AdjustableArrowCap.cs
- Model3DGroup.cs
- LineUtil.cs
- SessionSymmetricMessageSecurityProtocolFactory.cs
- CompilerLocalReference.cs
- DataObject.cs
- XmlSignatureProperties.cs
- PerformanceCounterCategory.cs
- UnsafeNativeMethods.cs
- XmlDocument.cs
- _AutoWebProxyScriptHelper.cs
- WindowsTab.cs
- FrameworkElementFactoryMarkupObject.cs
- DictionaryEntry.cs
- WhitespaceRule.cs
- DataSysAttribute.cs
- ColorConverter.cs
- WhereQueryOperator.cs
- InProcStateClientManager.cs
- EntityProxyFactory.cs
- CodeNamespaceImportCollection.cs
- ProviderUtil.cs
- FrameworkReadOnlyPropertyMetadata.cs
- ProxyWebPartConnectionCollection.cs
- HwndHostAutomationPeer.cs
- TraceSection.cs
- ProxyHwnd.cs
- ParseElementCollection.cs
- TagPrefixCollection.cs
- SyntaxCheck.cs
- GroupQuery.cs
- ReplyChannelBinder.cs
- ItemList.cs
- UnknownWrapper.cs
- ValueChangedEventManager.cs
- SqlDataSourceConnectionPanel.cs
- CheckBoxFlatAdapter.cs
- ListViewTableRow.cs
- PathSegment.cs
- HelpKeywordAttribute.cs
- EncryptedPackageFilter.cs
- ZipIOZip64EndOfCentralDirectoryLocatorBlock.cs
- Utils.cs
- ControlPersister.cs
- Module.cs
- ColorConverter.cs
- RequestTimeoutManager.cs
- IriParsingElement.cs
- InvalidEnumArgumentException.cs
- ClusterRegistryConfigurationProvider.cs
- SessionIDManager.cs
- propertyentry.cs
- srgsitem.cs
- ResourceProperty.cs
- TimeoutException.cs
- smtpconnection.cs
- EntityDataSourceViewSchema.cs
- BrowserCapabilitiesFactory.cs
- Profiler.cs
- CompositeControl.cs
- FormViewUpdatedEventArgs.cs