XAML印刷

// 印刷にあたり調整 <Grid x:Name="G1" Background="#FFE5E5E5">
var tfg = new TransformGroup();
tfg.Children.Add(new ScaleTransform(0.65,0.65)); //65%
tfg.Children.Add(new TranslateTransform(30, 20)); // 左にボタンがあるので
それを印刷させないため移動

G1.RenderTransform = tfg;

PrintDialog printDialog = new PrintDialog();

printDialog.PrintTicket.PageOrientation=System.Printing.PageOrientation.Land
scape;
printDialog.PrintTicket.PageMediaSize = new System.Printing.
PageMediaSize(System.Printing.PageMediaSizeName.ISOA4);
printDialog.PrintVisual(G1, "test");

// 元の大きさへ
var tfg2 = new TransformGroup();
tfg2.Children.Add(new ScaleTransform(1.00,1.0));　//100%
tfg2.Children.Add(new TranslateTransform(0, 0));//元の位置へ
G1.RenderTransform = tfg2;