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C# 获取当前屏幕DPI

日期：2018-09-24点击：720收藏

1.通过Graphics类获取

Graphics currentGraphics = Graphics.FromHwnd(new WindowInteropHelper(mainWindow).Handle); double dpixRatio = currentGraphics.DpiX/96;

比如当前屏幕设置DPI设置1.5倍，可以通过如上通过后台获取。

2.通过Win32-ManagementClass

using (ManagementClass mc = new ManagementClass("Win32_DesktopMonitor")) { using (ManagementObjectCollection moc = mc.GetInstances()) { int PixelsPerXLogicalInch = 0; // dpi for x int PixelsPerYLogicalInch = 0; // dpi for y foreach (ManagementObject each in moc) { PixelsPerXLogicalInch = int.Parse((each.Properties["PixelsPerXLogicalInch"].Value.ToString())); PixelsPerYLogicalInch = int.Parse((each.Properties["PixelsPerYLogicalInch"].Value.ToString())); } } }