Come ricavare i dpi dello schermo in WPF

Scritto da  Massimo Bonanni il domenica 23 gennaio 2011  •  Linguaggio: C#,VB   • Livello: 100


Un modo per ricavare i dpi dello schermo è il seguente:

VB.NET

Public Shared Sub GetVideoResolution(ByRef xDpi As Double, ByRef yDpi As Double)

    Try

      Dim MainWnd = PresentationSource.FromVisual(Application.Current.MainWindow)

      Dim transMatrix = MainWnd.CompositionTarget.TransformToDevice

      xDpi = transMatrix.M11 * 96D

      yDpi = transMatrix.M22 * 96D

    Catch ex As Exception

      Throw

    End Try

End Sub

 

C#

public static void GetVideoResolution(ref double xDpi, ref double yDpi)

{

    try

    {

      PresentationSource MainWnd = PresentationSource.FromVisual(Application.Current.MainWindow);

      Matrix transMatrix = MainWnd.CompositionTarget.TransformToDevice;

      xDpi = transMatrix.M11 * 96.0;

      yDpi = transMatrix.M22 * 96.0;

    }

    catch (Exception)

    {

      throw;

    }

}

 


Tags: WPF,windows presentation,Windows Presentation Foundation

 
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