예제 #1
0
        /// <summary>
        /// Gets the bounds of the monitor that contains the defined window
        /// </summary>
        /// <param name="windowHandle">The handle of the window displayed by the monitor</param>
        /// <returns>
        /// Returns the bounds of the monitor. Returns null if window is not on any monitor.
        /// </returns>
        public static Rect?GetMonitorBounds(IntPtr windowHandle)
        {
            var monitor = UnsafeNative.MonitorFromWindow(windowHandle, MonitorOptions.MONITOR_DEFAULTTONULL);

            if (monitor != IntPtr.Zero)
            {
                UnsafeNative.MONITORINFO monitorInfo = new UnsafeNative.MONITORINFO();
                UnsafeNative.GetMonitorInfo(monitor, monitorInfo);
                UnsafeNative.RECT rcWorkArea    = monitorInfo.rcWork;
                UnsafeNative.RECT rcMonitorArea = monitorInfo.rcMonitor;

                return(new Rect(rcMonitorArea.left, rcMonitorArea.top, Math.Abs(rcMonitorArea.left - rcMonitorArea.right), Math.Abs(rcMonitorArea.bottom - rcMonitorArea.top)));
            }

            return(null);
        }
예제 #2
0
        /// <summary>
        /// Sent to a window when the size or position of the window is about to change. An
        /// application can use this message to override the window's default maximized size and
        /// position, or its default minimum or maximum tracking size.
        /// </summary>
        /// <param name="windowHandle">The handle of the window displayed by the monitor</param>
        /// <param name="lParam">Additional message-specific information</param>
        public static void WmGetMinMaxInfo(IntPtr windowHandle, IntPtr lParam)
        {
            var mmi = (UnsafeNative.MINMAXINFO)Marshal.PtrToStructure(lParam, typeof(UnsafeNative.MINMAXINFO));

            // Adjust the maximized size and position to fit the work area of the correct monitor
            var monitor = UnsafeNative.MonitorFromWindow(windowHandle, MonitorOptions.MONITOR_DEFAULTTONEAREST);

            if (monitor != System.IntPtr.Zero)
            {
                UnsafeNative.MONITORINFO monitorInfo = new UnsafeNative.MONITORINFO();
                UnsafeNative.GetMonitorInfo(monitor, monitorInfo);
                UnsafeNative.RECT rcWorkArea    = monitorInfo.rcWork;
                UnsafeNative.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);
            }

            Marshal.StructureToPtr(mmi, lParam, true);
        }