private static void Initialize()
{
if (isInitialized)
{
return;
}
if (IsDpiAwarenessValueSet())
{
enableHighDpi = true;
}
else
{
try
{
// For legacy users who define this constant in app settings. But we read it only when we do not see a valid dpiawareness value in the Microsoft section
string value = ConfigurationManager.AppSettings.Get(ConfigurationStringConstants.EnableWindowsFormsHighDpiAutoResizingKeyName);
if (!string.IsNullOrEmpty(value) && string.Equals(value, "true", StringComparison.InvariantCultureIgnoreCase))
{
enableHighDpi = true;
}
}
catch
{
}
}
if (enableHighDpi)
{
#if Microsoft_NAMESPACE
try
{
if (!DpiHelper.SetWinformsApplicationDpiAwareness())
{
System.Diagnostics.Debug.WriteLine("Failed to set Application DPI awareness");
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Failed to set Application DPI awareness " + ex.ToString());
}
#endif
IntPtr hDC = UnsafeNativeMethods.GetDC(NativeMethods.NullHandleRef);
if (hDC != IntPtr.Zero)
{
deviceDpi = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(null, hDC), CAPS.LOGPIXELSX);
UnsafeNativeMethods.ReleaseDC(NativeMethods.NullHandleRef, new HandleRef(null, hDC));
}
}
isInitialized = true;
}
