Screen Resolution Problem In WPF?

Question

I\'m gonna detect the resolution with the following code in WPF :

double height = System.Windows.SystemParameters.PrimaryScreenHeight;
double width = S         


        

Answer 1

Please call this after your windows is loaded.

 public static class Ext
{
    public static Size GetNativePrimaryScreenSize(this Window window)
    {
        PresentationSource mainWindowPresentationSource = PresentationSource.FromVisual(window);
        Matrix m = mainWindowPresentationSource.CompositionTarget.TransformToDevice;
        var dpiWidthFactor = m.M11;
        var dpiHeightFactor = m.M22;
        double screenHeight = SystemParameters.PrimaryScreenHeight * dpiHeightFactor;
        double screenWidth = SystemParameters.PrimaryScreenWidth * dpiWidthFactor;

        return new Size(screenWidth, screenHeight);
    }
}