2020-03-28 08:43:16 +13:00
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using System;
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using System.Drawing;
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2020-03-28 12:42:32 +13:00
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namespace SystemTrayMenu.Utilities
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2020-03-28 08:43:16 +13:00
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{
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internal static class Scaling
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{
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internal static float Factor = 1;
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private enum DeviceCap
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{
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VERTRES = 10,
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DESKTOPVERTRES = 117,
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}
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internal static void Initialize()
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{
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CalculateScalingFactor();
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SetProcessDPIAwareWhenNecessary();
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void SetProcessDPIAwareWhenNecessary()
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{
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if (Environment.OSVersion.Version.Major >= 6)
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{
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2020-03-30 06:26:45 +13:00
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DllImports.NativeMethods.User32SetProcessDPIAware();
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2020-03-28 08:43:16 +13:00
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}
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}
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}
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private static void CalculateScalingFactor()
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{
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Graphics g = Graphics.FromHwnd(IntPtr.Zero);
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IntPtr desktop = g.GetHdc();
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2020-03-30 06:26:45 +13:00
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int LogicalScreenHeight = DllImports.NativeMethods.Gdi32GetDeviceCaps(
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2020-03-28 08:43:16 +13:00
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desktop, (int)DeviceCap.VERTRES);
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2020-03-30 06:26:45 +13:00
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int PhysicalScreenHeight = DllImports.NativeMethods.Gdi32GetDeviceCaps(
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2020-03-28 08:43:16 +13:00
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desktop, (int)DeviceCap.DESKTOPVERTRES);
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Factor = PhysicalScreenHeight / (float)LogicalScreenHeight;
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}
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}
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}
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