private void HandleDPI() {
// Declare that this process is aware of per monitor DPI
UnmanagedMethods.SetProcessDpiAwareness(UnmanagedMethods.PROCESS_DPI_AWARENESS.PROCESS_PER_MONITOR_DPI_AWARE);
// Get the DPI for the main monitor, and set the scaling factor
UnmanagedMethods.POINT pt = new UnmanagedMethods.POINT() { X = 1, Y = 1 };
var hMonitor = UnmanagedMethods.MonitorFromPoint(pt, UnmanagedMethods.MONITOR_DEFAULTTONEAREST);
// TODO: Check for failure
uint dpix, dpiy;
UnmanagedMethods.GetDpiForMonitor(hMonitor, UnmanagedMethods.MONITOR_DPI_TYPE.MDT_EFFECTIVE_DPI, out dpix, out dpiy);
// Set scale based on x DPI
scale = dpix / 100.0;
}
private Point ScreenToClient(uint x, uint y)
{
var p = new UnmanagedMethods.POINT { X = (int)x, Y = (int)y };
UnmanagedMethods.ScreenToClient(_hwnd, ref p);
return new Point(p.X, p.Y);
}
public Point PointToScreen(Point point)
{
var p = new UnmanagedMethods.POINT { X = (int)point.X, Y = (int)point.Y };
UnmanagedMethods.ClientToScreen(_hwnd, ref p);
return new Point(p.X, p.Y);
}
private Point ScreenToClient(Point point)
{
var p = new UnmanagedMethods.POINT { X = (int)point.X, Y = (int)point.Y };
UnmanagedMethods.ScreenToClient(_hwnd, ref p);
return new Point(p.X, p.Y);
}
