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# Delegate PDFViewWPF.CurrentScrollChangedHandler

Routed event, raised when scroll is changed.

###### Namespace: pdftron.PDF

###### Assembly: PDFNet.dll

##### Syntax

    public delegate void PDFViewWPF.CurrentScrollChangedHandler(PDFViewWPF viewer, ScrollChangedEventArgs e)

##### Parameters

Type | Name | Description
--- | --- | ---
PDFViewWPF | viewer | Routed event, raised when scroll is changed.
ScrollChangedEventArgs | e | Routed event, raised when scroll is changed.

### Constructors

#### CurrentScrollChangedHandler(object, IntPtr)

##### Declaration

    public CurrentScrollChangedHandler(object A_0, IntPtr A_1)

##### Parameters

Type | Name | Description
--- | --- | ---
object | A_0 |
IntPtr | A_1 |

### Methods

#### BeginInvoke(PDFViewWPF, ScrollChangedEventArgs, AsyncCallback, object)

##### Declaration

    public IAsyncResult BeginInvoke(PDFViewWPF viewer, ScrollChangedEventArgs e, AsyncCallback callback, object obj)

##### Parameters

Type | Name | Description
--- | --- | ---
PDFViewWPF | viewer |
ScrollChangedEventArgs | e |
AsyncCallback | callback |
object | obj |

##### Returns

Type | Description
--- | ---
IAsyncResult |

#### EndInvoke(IAsyncResult)

##### Declaration

    public void EndInvoke(IAsyncResult result)

##### Parameters

Type | Name | Description
--- | --- | ---
IAsyncResult | result |

#### Invoke(PDFViewWPF, ScrollChangedEventArgs)

##### Declaration

    public void Invoke(PDFViewWPF viewer, ScrollChangedEventArgs e)

##### Parameters

Type | Name | Description
--- | --- | ---
PDFViewWPF | viewer |
ScrollChangedEventArgs | e |