Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / WinForms / Managed / System / WinForms / ListViewInsertionMark.cs / 1 / 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
- SafeMemoryMappedFileHandle.cs
- ConstructorArgumentAttribute.cs
- ItemsControlAutomationPeer.cs
- AsyncPostBackErrorEventArgs.cs
- PropertyGroupDescription.cs
- WmiInstallComponent.cs
- Ipv6Element.cs
- ImageDrawing.cs
- SizeLimitedCache.cs
- OdbcConnectionPoolProviderInfo.cs
- ToolboxItemCollection.cs
- StyleBamlRecordReader.cs
- CounterCreationDataConverter.cs
- HandlerBase.cs
- LessThanOrEqual.cs
- VariableAction.cs
- UdpRetransmissionSettings.cs
- ColumnMapProcessor.cs
- ValidationErrorCollection.cs
- RankException.cs
- TextPattern.cs
- XmlQueryRuntime.cs
- EncoderParameter.cs
- PrtCap_Public_Simple.cs
- GACMembershipCondition.cs
- TraceLog.cs
- MsdtcWrapper.cs
- SystemIPGlobalStatistics.cs
- GroupJoinQueryOperator.cs
- LayoutDump.cs
- TypefaceCollection.cs
- QuestionEventArgs.cs
- WebPartDisplayModeCollection.cs
- GeometryHitTestResult.cs
- DecodeHelper.cs
- DiscoveryDocumentSearchPattern.cs
- EntityTypeBase.cs
- PrintingPermission.cs
- WebPartChrome.cs
- HtmlInputButton.cs
- DiscriminatorMap.cs
- TypeBrowserDialog.cs
- PeerNameRecordCollection.cs
- LinkUtilities.cs
- PersonalizablePropertyEntry.cs
- FacetDescriptionElement.cs
- ResourceWriter.cs
- BufferedStream.cs
- OLEDB_Util.cs
- BamlLocalizableResource.cs
- tibetanshape.cs
- DataFormats.cs
- RealProxy.cs
- ControlCollection.cs
- ControlPropertyNameConverter.cs
- DataGridViewCellToolTipTextNeededEventArgs.cs
- SwitchElementsCollection.cs
- SqlDataSourceStatusEventArgs.cs
- Psha1DerivedKeyGenerator.cs
- AssemblyFilter.cs
- WebScriptEnablingBehavior.cs
- BamlRecords.cs
- AuthenticationSection.cs
- CharAnimationBase.cs
- ComponentEditorForm.cs
- RuleInfoComparer.cs
- BoundField.cs
- PreviewPageInfo.cs
- SelectionListDesigner.cs
- ImageSource.cs
- XmlBufferReader.cs
- DBConcurrencyException.cs
- RegexReplacement.cs
- TransactedReceiveScope.cs
- EventLogPermission.cs
- AssociationSetEnd.cs
- FontUnit.cs
- Container.cs
- WebZone.cs
- CanonicalizationDriver.cs
- PropertyGridCommands.cs
- RegexBoyerMoore.cs
- FileLoadException.cs
- Component.cs
- ResourceDisplayNameAttribute.cs
- HitTestResult.cs
- Decorator.cs
- CompilationLock.cs
- LayoutExceptionEventArgs.cs
- DataGridViewRowConverter.cs
- XamlSerializationHelper.cs
- SmiMetaData.cs
- DrawingContextWalker.cs
- LeftCellWrapper.cs
- ChtmlTextWriter.cs
- DataGridViewCell.cs
- CryptoHandle.cs
- COAUTHINFO.cs
- DataTemplateSelector.cs
- StringValueConverter.cs