internal static extern bool GetMonitorInfo(IntPtr hMonitor, MONITORINFO lpmi);
public void WmGetMinMaxInfo(IntPtr hwnd, IntPtr lParam)
{
var mmi = (MINMAXINFO) Marshal.PtrToStructure(lParam, typeof (MINMAXINFO));
// Adjust the maximized size and position to fit the work area of the correct monitor
const int MONITOR_DEFAULTTONEAREST = 0x00000002;
IntPtr monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
if (monitor != IntPtr.Zero)
{
if (!_max_minSet)
{
_maxTrack = mmi.ptMaxTrackSize;
_minTrack = mmi.ptMinTrackSize;
}
var monitorInfo = new MONITORINFO();
GetMonitorInfo(monitor, monitorInfo);
RECT rcWorkArea = monitorInfo.rcWork;
RECT rcMonitorArea = monitorInfo.rcMonitor;
mmi.ptMaxPosition.x = Math.Abs(rcWorkArea.left - rcMonitorArea.left);
mmi.ptMaxPosition.y = Math.Abs(rcWorkArea.top - rcMonitorArea.top);
mmi.ptMaxSize.x = Math.Abs(rcWorkArea.right - rcWorkArea.left);
mmi.ptMaxSize.y = Math.Abs(rcWorkArea.bottom - rcWorkArea.top);
if (_window != null)
{
if (_window.WindowState == WindowState.Maximized)
{
mmi.ptMaxTrackSize = _maxTrack;
mmi.ptMinTrackSize = _minTrack;
}
else
{
// Bug Fix #13: Translate WPF scaled coordinates to screen coordinates.
var windowMaxDimens = WpfToScreenPixels(new Point(_window.MaxWidth, _window.MaxHeight));
var windowMinDimens = WpfToScreenPixels(new Point(_window.MinWidth, _window.MinHeight));
mmi.ptMaxTrackSize.x = (int) windowMaxDimens.X;
mmi.ptMaxTrackSize.y = (int) windowMaxDimens.Y;
mmi.ptMinTrackSize.x = (int) windowMinDimens.X;
mmi.ptMinTrackSize.y = (int) windowMinDimens.Y;
}
}
}
Marshal.StructureToPtr(mmi, lParam, true);
}
