Tool.OnActivate Method

Called when a tool is activated.

Namespace:  Microsoft.Windows.Design.Interaction
Assembly:  Microsoft.Windows.Design.Interaction (in Microsoft.Windows.Design.Interaction.dll)

Syntax

'Declaration
Protected Overridable Sub OnActivate ( _
    previousTool As Tool _
)

protected virtual void OnActivate(
    Tool previousTool
)

protected:
virtual void OnActivate(
    Tool^ previousTool
)

abstract OnActivate : 
        previousTool:Tool -> unit 
override OnActivate : 
        previousTool:Tool -> unit 

protected function OnActivate(
    previousTool : Tool
)

Parameters

• previousTool
  Type: Microsoft.Windows.Design.Interaction.Tool
  The tool that was in the context before this tool became active. The default Tool implementation does nothing with this parameter.

Remarks

To activate a tool, the tool is placed in the EditingContext. For example, Context.ContexItems.SetValue(theTool);.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

Tool Class

Microsoft.Windows.Design.Interaction Namespace

Other Resources

Tool Architecture

WPF Designer Extensibility Architecture