static extern bool GetMonitorInfo(IntPtr hMonitor, Monitorinfo lpmi);
private void WmGetMinMaxInfo(IntPtr hwnd, IntPtr lParam)
{
GetCursorPos(out var lMousePosition);
var lCurrentScreen = _beingMoved ?
MonitorFromPoint(lMousePosition, MonitorOptions.MonitorDefaulttonull) :
MonitorFromWindow(hwnd, MonitorOptions.MonitorDefaulttonull);
var lPrimaryScreen = MonitorFromPoint(new Point(0, 0), MonitorOptions.MonitorDefaulttoprimary);
var lCurrentScreenInfo = new Monitorinfo();
if (GetMonitorInfo(lCurrentScreen, lCurrentScreenInfo) == false)
{
return;
}
var lPrimaryScreenInfo = new Monitorinfo();
if (GetMonitorInfo(lPrimaryScreen, lPrimaryScreenInfo) == false)
{
return;
}
_monitorDpi = VisualTreeHelper.GetDpi(_window);
_lastScreen = lCurrentScreen;
var currentX = lCurrentScreenInfo.RCWork.Left - lCurrentScreenInfo.RCMonitor.Left;
var currentY = lCurrentScreenInfo.RCWork.Top - lCurrentScreenInfo.RCMonitor.Top;
var currentWidth = (lCurrentScreenInfo.RCWork.Right - lCurrentScreenInfo.RCWork.Left);
var currentHeight = (lCurrentScreenInfo.RCWork.Bottom - lCurrentScreenInfo.RCWork.Top);
var currentRatio = (float)currentWidth / currentHeight;
var primaryX = lPrimaryScreenInfo.RCWork.Left - lPrimaryScreenInfo.RCMonitor.Left;
var primaryY = lPrimaryScreenInfo.RCWork.Top - lPrimaryScreenInfo.RCMonitor.Top;
var primaryWidth = (lPrimaryScreenInfo.RCWork.Right - lPrimaryScreenInfo.RCWork.Left);
var primaryHeight = (lPrimaryScreenInfo.RCWork.Bottom - lPrimaryScreenInfo.RCWork.Top);
var primaryRatio = (float)primaryWidth / primaryHeight;
if (lParam != IntPtr.Zero)
{
var lMmi = (Minmaxinfo)Marshal.PtrToStructure(lParam, typeof(Minmaxinfo));
lMmi.PointMaxPosition.X = lPrimaryScreenInfo.RCMonitor.Left;
lMmi.PointMaxPosition.Y = lPrimaryScreenInfo.RCMonitor.Top;
lMmi.PointMaxSize.X = lPrimaryScreenInfo.RCMonitor.Right;
lMmi.PointMaxSize.Y = lPrimaryScreenInfo.RCMonitor.Bottom;
var minSize = new System.Windows.Point(_window.MinWidth * _monitorDpi.Value.DpiScaleX, _window.MinHeight * _monitorDpi.Value.DpiScaleX);
lMmi.PointMinTrackSize.X = (int)minSize.X;
lMmi.PointMinTrackSize.Y = (int)minSize.Y;
Marshal.StructureToPtr(lMmi, lParam, true);
}
CurrentMonitorSize = new Rectangle(currentX, currentY, currentWidth + currentX, currentHeight + currentY);
CurrentMonitorMargin = new Thickness(
(lCurrentScreenInfo.RCWork.Left - lCurrentScreenInfo.RCMonitor.Left) / _monitorDpi.Value.DpiScaleX,
(lCurrentScreenInfo.RCWork.Top - lCurrentScreenInfo.RCMonitor.Top) / _monitorDpi.Value.DpiScaleY,
(lCurrentScreenInfo.RCMonitor.Right - lCurrentScreenInfo.RCWork.Right) / _monitorDpi.Value.DpiScaleX,
(lCurrentScreenInfo.RCMonitor.Bottom - lCurrentScreenInfo.RCWork.Bottom) / _monitorDpi.Value.DpiScaleY
);
_screenSize = new Rect(lCurrentScreenInfo.RCWork.Left, lCurrentScreenInfo.RCWork.Top, currentWidth, currentHeight);
}
