Thank you for the information, i am doing a practice examle with your example, its showing up this weird error message do you know? here is the code below including the error message, thank you

private void btnprint_Click(object sender, RoutedEventArgs e)
{
System.Windows.Controls.PrintDialog prtDlg = new System.Windows.Controls.PrintDialog();
if(prtDlg.ShowDialog() == true)
{
prtDlg.PrintVisual(bitmap, desc);
}
}
error message:
the best overload method match for system.windows.controls.printdialog.printvisual(system.windows.media.visual, string); has some invalid arguments

argument 1: cannot convert from system.window.media.imaging.bitmapimage to system.windows.media.visual.

PLEASE HELP : (