public double DeviceDpiY {get; set;}
get_DeviceDpiY();
set_DeviceDpiY(value);
This value is used to calculate the font size and fixed length and size values between annotation and display coordinates.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2