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WorkflowDesignerMessageFilter.xml
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WorkflowDesignerMessageFilter.xml
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<Type Name="WorkflowDesignerMessageFilter" FullName="System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter">
<TypeSignature Language="C#" Value="public abstract class WorkflowDesignerMessageFilter : IDisposable" />
<TypeSignature Language="ILAsm" Value=".class public auto ansi abstract beforefieldinit WorkflowDesignerMessageFilter extends System.Object implements class System.IDisposable" />
<TypeSignature Language="DocId" Value="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />
<TypeSignature Language="VB.NET" Value="Public MustInherit Class WorkflowDesignerMessageFilter
Implements IDisposable" />
<TypeSignature Language="F#" Value="type WorkflowDesignerMessageFilter = class
 interface IDisposable" />
<TypeSignature Language="C++ CLI" Value="public ref class WorkflowDesignerMessageFilter abstract : IDisposable" />
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Base>
<BaseTypeName>System.Object</BaseTypeName>
</Base>
<Interfaces>
<Interface>
<InterfaceName>System.IDisposable</InterfaceName>
</Interface>
</Interfaces>
<Attributes>
<Attribute FrameworkAlternate="netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1">
<AttributeName Language="C#">[System.Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")]</AttributeName>
<AttributeName Language="F#">[<System.Obsolete("The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*")>]</AttributeName>
</Attribute>
</Attributes>
<Docs>
<summary>Provides a base class for all workflow message filters.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
> [!NOTE]
> [!INCLUDE[DeprecatedContent](~/includes/deprecatedcontent-md.md)]
The workflow designer provides a `Strategy` design pattern to create replaceable message filter objects to handle events.
Derive from the <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter> class to create message filters that can respond to workflow designer events, such as drag operations, layout and paint operations, and other designer events. To add a custom message filter to the message filters chain, call the <xref:System.Workflow.ComponentModel.Design.WorkflowView.AddDesignerMessageFilter%2A> on the <xref:System.Workflow.ComponentModel.Design.WorkflowView> or override the <xref:System.Workflow.ComponentModel.Design.IWorkflowRootDesigner.MessageFilters%2A> virtual property on the custom root activity and add the custom message filter to the collection returned from the base class.
## Examples
The following code example shows a custom designer message filter that derives from <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter>. The class, named `CustomMessageFilter`, overrides a number of its base class methods including <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseDown%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseMove%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseUp%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseDoubleClick%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseEnter%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseHover%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseLeave%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnDragEnter%2A>, <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnDragOver%2A>, and <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnKeyDown%2A>.
This code example is part of the Basic Designer Hosting SDK Sample from the DesignerShell.cs file. For more information, see [Basic Designer Hosting](https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet237":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet237":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
<Members>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="protected WorkflowDesignerMessageFilter ();" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig specialname rtspecialname instance void .ctor() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.#ctor" />
<MemberSignature Language="VB.NET" Value="Protected Sub New ()" />
<MemberSignature Language="C++ CLI" Value="protected:
 WorkflowDesignerMessageFilter();" />
<MemberType>Constructor</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Parameters />
<Docs>
<summary>When implemented in a derived class, initializes an instance of a <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</summary>
<remarks>To be added.</remarks>
</Docs>
</Member>
<MemberGroup MemberName="Dispose">
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Docs>
<summary>Releases the resources used by the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</summary>
</Docs>
</MemberGroup>
<Member MemberName="Dispose">
<MemberSignature Language="C#" Value="public void Dispose ();" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void Dispose() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Dispose" />
<MemberSignature Language="VB.NET" Value="Public Sub Dispose ()" />
<MemberSignature Language="F#" Value="abstract member Dispose : unit -> unit
override this.Dispose : unit -> unit" Usage="workflowDesignerMessageFilter.Dispose " />
<MemberSignature Language="C++ CLI" Value="public:
 virtual void Dispose();" />
<MemberType>Method</MemberType>
<Implements>
<InterfaceMember>M:System.IDisposable.Dispose</InterfaceMember>
</Implements>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>Releases the resources used by the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</summary>
<remarks>To be added.</remarks>
</Docs>
</Member>
<Member MemberName="Dispose">
<MemberSignature Language="C#" Value="protected virtual void Dispose (bool disposing);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance void Dispose(bool disposing) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Dispose(System.Boolean)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Sub Dispose (disposing As Boolean)" />
<MemberSignature Language="F#" Value="abstract member Dispose : bool -> unit
override this.Dispose : bool -> unit" Usage="workflowDesignerMessageFilter.Dispose disposing" />
<MemberSignature Language="C++ CLI" Value="protected:
 virtual void Dispose(bool disposing);" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="disposing" Type="System.Boolean" />
</Parameters>
<Docs>
<param name="disposing">
<see langword="true" /> to release both managed and unmanaged resources; <see langword="false" /> to release only unmanaged resources.</param>
<summary>Releases the unmanaged resources used by the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" /> and optionally releases the managed resources.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
This method is called by the public `Dispose()` method and the <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Finalize%2A> method. `Dispose()` invokes the protected `Dispose(Boolean)` method with the `disposing` parameter set to `true`. <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Finalize%2A> invokes `Dispose` with disposing set to `false`.
When the `disposing` parameter is `true`, this method releases all resources held by any managed objects that this <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter> references. This method invokes the `Dispose()` method of each referenced object.
> [!NOTE]
> `Dispose` can be called multiple times by other objects. When overriding `Dispose(Boolean)`, be careful not to reference objects that have been previously disposed of in an earlier call to `Dispose`. For more information about how to implement `Dispose(Boolean)`, see [Implementing a Dispose Method](/dotnet/standard/garbage-collection/implementing-dispose).
For more information, see `Dispose` and `Finalize`, see [Cleaning Up Unmanaged Resources](/dotnet/standard/garbage-collection/unmanaged) and [Overriding the Finalize Method](https://learn.microsoft.com/previous-versions/dotnet/netframework-4.0/ddae83kx(v=vs.100)).
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="Finalize">
<MemberSignature Language="C#" Value="~WorkflowDesignerMessageFilter ();" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig virtual instance void Finalize() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Finalize" />
<MemberSignature Language="VB.NET" Value="Finalize ()" />
<MemberSignature Language="F#" Value="override this.Finalize : unit -> unit" Usage="workflowDesignerMessageFilter.Finalize " />
<MemberSignature Language="C++ CLI" Value="!WorkflowDesignerMessageFilter ()" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>Attempts to free resources by calling <see langword="Dispose(false)" /> before the object is reclaimed by garbage collection.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
This method cleans up resources by calling `Dispose(false)`. Override `Dispose(Boolean)` to customize the cleanup.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="Initialize">
<MemberSignature Language="C#" Value="protected virtual void Initialize (System.Workflow.ComponentModel.Design.WorkflowView parentView);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance void Initialize(class System.Workflow.ComponentModel.Design.WorkflowView parentView) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.Initialize(System.Workflow.ComponentModel.Design.WorkflowView)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Sub Initialize (parentView As WorkflowView)" />
<MemberSignature Language="F#" Value="abstract member Initialize : System.Workflow.ComponentModel.Design.WorkflowView -> unit
override this.Initialize : System.Workflow.ComponentModel.Design.WorkflowView -> unit" Usage="workflowDesignerMessageFilter.Initialize parentView" />
<MemberSignature Language="C++ CLI" Value="protected:
 virtual void Initialize(System::Workflow::ComponentModel::Design::WorkflowView ^ parentView);" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="parentView" Type="System.Workflow.ComponentModel.Design.WorkflowView" />
</Parameters>
<Docs>
<param name="parentView">The <see cref="T:System.Workflow.ComponentModel.Design.WorkflowView" /> to associate with the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</param>
<summary>Initializes the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" /> with the associated <see cref="T:System.Workflow.ComponentModel.Design.WorkflowView" />.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
You can associate message filters with the <xref:System.Workflow.ComponentModel.Design.WorkflowView> to capture messages that occur from user interaction, such as mouse events, keyboard events, paint and layout events.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="MessageHitTestContext">
<MemberSignature Language="C#" Value="protected System.Workflow.ComponentModel.Design.HitTestInfo MessageHitTestContext { get; }" />
<MemberSignature Language="ILAsm" Value=".property instance class System.Workflow.ComponentModel.Design.HitTestInfo MessageHitTestContext" />
<MemberSignature Language="DocId" Value="P:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.MessageHitTestContext" />
<MemberSignature Language="VB.NET" Value="Protected ReadOnly Property MessageHitTestContext As HitTestInfo" />
<MemberSignature Language="F#" Value="member this.MessageHitTestContext : System.Workflow.ComponentModel.Design.HitTestInfo" Usage="System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.MessageHitTestContext" />
<MemberSignature Language="C++ CLI" Value="protected:
 property System::Workflow::ComponentModel::Design::HitTestInfo ^ MessageHitTestContext { System::Workflow::ComponentModel::Design::HitTestInfo ^ get(); };" />
<MemberType>Property</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Workflow.ComponentModel.Design.HitTestInfo</ReturnType>
</ReturnValue>
<Docs>
<summary>Gets the <see cref="T:System.Workflow.ComponentModel.Design.HitTestInfo" /> that describes the context of the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</summary>
<value>A <see cref="T:System.Workflow.ComponentModel.Design.HitTestInfo" /> object that contains information about the context of the <see cref="T:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter" />.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Workflow.ComponentModel.Design.HitTestInfo> contains information about the area and the context of the area hit, including any designers hit and the area on the designer hit.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="OnDragDrop">
<MemberSignature Language="C#" Value="protected virtual bool OnDragDrop (System.Windows.Forms.DragEventArgs eventArgs);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnDragDrop(class System.Windows.Forms.DragEventArgs eventArgs) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnDragDrop(System.Windows.Forms.DragEventArgs)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Function OnDragDrop (eventArgs As DragEventArgs) As Boolean" />
<MemberSignature Language="F#" Value="abstract member OnDragDrop : System.Windows.Forms.DragEventArgs -> bool
override this.OnDragDrop : System.Windows.Forms.DragEventArgs -> bool" Usage="workflowDesignerMessageFilter.OnDragDrop eventArgs" />
<MemberSignature Language="C++ CLI" Value="protected:
 virtual bool OnDragDrop(System::Windows::Forms::DragEventArgs ^ eventArgs);" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
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<Parameter Name="eventArgs" Type="System.Windows.Forms.DragEventArgs" />
</Parameters>
<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.DragEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse button is released above an object during a drag operation.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
<xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnDragDrop%2A> occurs when the mouse button is released above an object during a drag operation.
]]></format>
</remarks>
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<param name="eventArgs">A <see cref="T:System.Windows.Forms.DragEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse pointer enters the bounds of an object during a drag operation.</summary>
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<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet247":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet247":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
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<summary>Occurs when the mouse pointer leaves the bounds of an object during a drag operation.</summary>
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<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet249":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet249":::
]]></format>
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<param name="eventArgs">A <see cref="T:System.Windows.Forms.DragEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse pointer moves within the bounds of an object during a drag operation.</summary>
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<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet248":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet248":::
]]></format>
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<param name="eventArgs">A <see cref="T:System.Windows.Forms.GiveFeedbackEventArgs" /> that contains information about the event.</param>
<summary>Occurs during a drag operation.</summary>
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<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet251":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet251":::
]]></format>
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<Docs>
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<summary>Occurs when a key is pressed.</summary>
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<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet253":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet253":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
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<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.KeyEventArgs" /> that contains information about the event.</param>
<summary>Occurs when a key is released.</summary>
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<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet254":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet254":::
]]></format>
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<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
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<param name="eventArgs">A <see cref="T:System.Windows.Forms.LayoutEventArgs" /> that contains information about the event.</param>
<summary>Occurs when child objects should be repositioned.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
<xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnLayout%2A> occurs when child objects should be repositioned within the parent container.
]]></format>
</remarks>
</Docs>
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<Member MemberName="OnMouseCaptureChanged">
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<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseCaptureChanged() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseCaptureChanged" />
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<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
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<ReturnValue>
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</ReturnValue>
<Parameters />
<Docs>
<summary>Occurs when the items selected by dragging the mouse changes.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet246":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet246":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseDoubleClick">
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<MemberSignature Language="F#" Value="abstract member OnMouseDoubleClick : System.Windows.Forms.MouseEventArgs -> bool
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<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when you double-click the mouse.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet241":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet241":::
]]></format>
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<Parameter Name="eventArgs" Type="System.Windows.Forms.MouseEventArgs" />
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<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when a mouse button is clicked.</summary>
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<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet238":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet238":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseEnter">
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<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseEnter(class System.Windows.Forms.MouseEventArgs eventArgs) cil managed" />
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<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse pointer enters the bounds of an object.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet242":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet242":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
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<Member MemberName="OnMouseHover">
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<Parameters>
<Parameter Name="eventArgs" Type="System.Windows.Forms.MouseEventArgs" />
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<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse pointer pauses above an object.</summary>
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<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet243":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet243":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseLeave">
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<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseLeave() cil managed" />
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<Parameters />
<Docs>
<summary>Occurs when the mouse pointer leaves the bounds of an object.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet244":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet244":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseMove">
<MemberSignature Language="C#" Value="protected virtual bool OnMouseMove (System.Windows.Forms.MouseEventArgs eventArgs);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseMove(class System.Windows.Forms.MouseEventArgs eventArgs) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseMove(System.Windows.Forms.MouseEventArgs)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Function OnMouseMove (eventArgs As MouseEventArgs) As Boolean" />
<MemberSignature Language="F#" Value="abstract member OnMouseMove : System.Windows.Forms.MouseEventArgs -> bool
override this.OnMouseMove : System.Windows.Forms.MouseEventArgs -> bool" Usage="workflowDesignerMessageFilter.OnMouseMove eventArgs" />
<MemberSignature Language="C++ CLI" Value="protected:
 virtual bool OnMouseMove(System::Windows::Forms::MouseEventArgs ^ eventArgs);" />
<MemberType>Method</MemberType>
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<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Boolean</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="eventArgs" Type="System.Windows.Forms.MouseEventArgs" />
</Parameters>
<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse pointer moves while within the bounds of an object.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet239":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet239":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseUp">
<MemberSignature Language="C#" Value="protected virtual bool OnMouseUp (System.Windows.Forms.MouseEventArgs eventArgs);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseUp(class System.Windows.Forms.MouseEventArgs eventArgs) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseUp(System.Windows.Forms.MouseEventArgs)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Function OnMouseUp (eventArgs As MouseEventArgs) As Boolean" />
<MemberSignature Language="F#" Value="abstract member OnMouseUp : System.Windows.Forms.MouseEventArgs -> bool
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<MemberSignature Language="C++ CLI" Value="protected:
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<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Boolean</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="eventArgs" Type="System.Windows.Forms.MouseEventArgs" />
</Parameters>
<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse button is released.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><).
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet240":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet240":::
]]></format>
</remarks>
<related type="Article" href="https://learn.microsoft.com/previous-versions/dotnet/netframework-3.5/ms741708(v=vs.90)">Basic Designer Hosting</related>
</Docs>
</Member>
<Member MemberName="OnMouseWheel">
<MemberSignature Language="C#" Value="protected virtual bool OnMouseWheel (System.Windows.Forms.MouseEventArgs eventArgs);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnMouseWheel(class System.Windows.Forms.MouseEventArgs eventArgs) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseWheel(System.Windows.Forms.MouseEventArgs)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Function OnMouseWheel (eventArgs As MouseEventArgs) As Boolean" />
<MemberSignature Language="F#" Value="abstract member OnMouseWheel : System.Windows.Forms.MouseEventArgs -> bool
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<MemberSignature Language="C++ CLI" Value="protected:
 virtual bool OnMouseWheel(System::Windows::Forms::MouseEventArgs ^ eventArgs);" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Boolean</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="eventArgs" Type="System.Windows.Forms.MouseEventArgs" />
</Parameters>
<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains information about the event.</param>
<summary>Occurs when the mouse wheel moves.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
<xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseWheel%2A> occurs when the mouse wheel moves.
## Examples
The following code example shows how to override the <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnMouseWheel%2A> method to zoom the <xref:System.Workflow.ComponentModel.Design.WorkflowView> object based on the <xref:System.Windows.Forms.MouseEventArgs.Delta%2A> property of the <xref:System.Windows.Forms.MouseEventArgs> and to return `false` so that other components in the designer architecture can process the method.
:::code language="csharp" source="~/snippets/csharp/VS_Snippets_CFX/wf_samples/cs/snippets24.cs" id="Snippet245":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_CFX/wf_samples/vb/snippets24.vb" id="Snippet245":::
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="OnPaint">
<MemberSignature Language="C#" Value="protected virtual bool OnPaint (System.Windows.Forms.PaintEventArgs eventArgs, System.Drawing.Rectangle viewPort, System.Workflow.ComponentModel.Design.AmbientTheme ambientTheme);" />
<MemberSignature Language="ILAsm" Value=".method familyhidebysig newslot virtual instance bool OnPaint(class System.Windows.Forms.PaintEventArgs eventArgs, valuetype System.Drawing.Rectangle viewPort, class System.Workflow.ComponentModel.Design.AmbientTheme ambientTheme) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnPaint(System.Windows.Forms.PaintEventArgs,System.Drawing.Rectangle,System.Workflow.ComponentModel.Design.AmbientTheme)" />
<MemberSignature Language="VB.NET" Value="Protected Overridable Function OnPaint (eventArgs As PaintEventArgs, viewPort As Rectangle, ambientTheme As AmbientTheme) As Boolean" />
<MemberSignature Language="F#" Value="abstract member OnPaint : System.Windows.Forms.PaintEventArgs * System.Drawing.Rectangle * System.Workflow.ComponentModel.Design.AmbientTheme -> bool
override this.OnPaint : System.Windows.Forms.PaintEventArgs * System.Drawing.Rectangle * System.Workflow.ComponentModel.Design.AmbientTheme -> bool" Usage="workflowDesignerMessageFilter.OnPaint (eventArgs, viewPort, ambientTheme)" />
<MemberSignature Language="C++ CLI" Value="protected:
 virtual bool OnPaint(System::Windows::Forms::PaintEventArgs ^ eventArgs, System::Drawing::Rectangle viewPort, System::Workflow::ComponentModel::Design::AmbientTheme ^ ambientTheme);" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Workflow.ComponentModel</AssemblyName>
<AssemblyVersion>3.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Boolean</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="eventArgs" Type="System.Windows.Forms.PaintEventArgs" />
<Parameter Name="viewPort" Type="System.Drawing.Rectangle" />
<Parameter Name="ambientTheme" Type="System.Workflow.ComponentModel.Design.AmbientTheme" />
</Parameters>
<Docs>
<param name="eventArgs">A <see cref="T:System.Windows.Forms.PaintEventArgs" /> that contains information about the event.</param>
<param name="viewPort">A <see cref="T:System.Drawing.Rectangle" /> that describes the area to be painted.</param>
<param name="ambientTheme">A <see cref="T:System.Workflow.ComponentModel.Design.AmbientTheme" /> used to obtain information about the theme.</param>
<summary>Occurs when a paint message is received.</summary>
<returns>
<see langword="true" /> if the message is handled; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
<xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnPaint%2A> occurs when a paint message is received. Use the parameters passed to <xref:System.Workflow.ComponentModel.Design.WorkflowDesignerMessageFilter.OnPaint%2A> to determine the area to be painted, the theme used, and additional information about the event passed in the `PaintEventArgs`.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="OnPaintWorkflowAdornments">