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Fix crash on windows 7 #158

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Fix crash on windows 7 #158

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2d48ef6
Fix crash on windows 7 ()
Xinnony Jan 1, 2022
81bd4b5
Fix for 4.5 net framework
Xinnony Jan 2, 2022
df24971
Update AcrylicWindow.cs
Xinnony Jan 2, 2022
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29 changes: 28 additions & 1 deletion FluentWPF/AcrylicWindow.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -372,7 +372,34 @@ protected static IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lPar
var monitorRectangle = monitorInfo.rcMonitor;

var win = (Window)HwndSource.FromHwnd(hwnd).RootVisual;
GetDpiForMonitor(hMonitor, MONITOR_DPI_TYPE.MDT_EFFECTIVE_DPI, out var dpiX, out var dpiY);
uint dpiX = 96, dpiY = 96;
if (Environment.OSVersion.Version.Major >= 10 || (Environment.OSVersion.Version.Major == 6 && Environment.OSVersion.Version.Minor == 3))
{
GetDpiForMonitor(hMonitor, MONITOR_DPI_TYPE.MDT_EFFECTIVE_DPI, out dpiX, out dpiY);
}
else
{
// must be an old version of Windows (7 or 8)
// an old version of Windows (7 or 8)
// Get scale of main window and assume scale is the same for all monitors
using (ManagementClass mc = new ManagementClass("Win32_DesktopMonitor"))
{
using (ManagementObjectCollection moc = mc.GetInstances())
{

uint PixelsPerXLogicalInch = 0; // dpi for x
uint PixelsPerYLogicalInch = 0; // dpi for y

foreach (ManagementObject each in moc)
{
PixelsPerXLogicalInch = uint.Parse((each.Properties["PixelsPerXLogicalInch"].Value.ToString()));
PixelsPerYLogicalInch = uint.Parse((each.Properties["PixelsPerYLogicalInch"].Value.ToString()));
}
dpiX = PixelsPerXLogicalInch;
dpiY = PixelsPerYLogicalInch;
}
}
}
var maxWidth = win.MaxWidth / 96.0 * dpiX;
var maxHeight = win.MaxHeight / 96.0 * dpiY;
var minWidth = win.MinWidth / 96.0 * dpiX;
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