[WPF疑难]避免窗口最大化时遮盖任务栏

                        [WPF疑难]避免窗口最大化时遮盖任务栏

                                 周银辉

WPF窗口最大化时有个很不好的现象是：如果窗口的WindowStyle被直接或间接地设置为None后（比如很多情况下你会覆盖默认的窗体样式，即不采用Windows默认的边框和最大化最等按钮，来打造个性的窗体），那么最大化窗口后，窗口将铺满整个屏幕而将任务栏盖住。这往往不符合实际要求。

这里有个不错的解决方案解决了该问题,其通过对 WM_GETMINMAXINFO（MSDN： The WM_GETMINMAXINFO message is 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.） 消息挂接一个钩子来处理。其消息代码是：0x0024（更多的消息代码可以参考本文附录）

没什么好说的，直接上代码（对你要处理的窗口调用FullScreenManager.RepairWpfWindowFullScreenBehavior方法即可）：

public static class FullScreenManager
    {
        public static void RepairWpfWindowFullScreenBehavior(Window wpfWindow)
        {
            if(wpfWindow == null)
            {
                return;
            }

            if(wpfWindow.WindowState == WindowState.Maximized)
            {
                wpfWindow.WindowState = WindowState.Normal;
                wpfWindow.Loaded += delegate { wpfWindow.WindowState = WindowState.Maximized; };
            }

            wpfWindow.SourceInitialized += delegate
            {
                IntPtr handle = (new WindowInteropHelper(wpfWindow)).Handle;
                HwndSource source = HwndSource.FromHwnd(handle);
                if(source != null)
                {
                    source.AddHook(WindowProc);
                }
            };
        }

        private static IntPtr WindowProc(IntPtr hwnd,  int msg,  IntPtr wParam, IntPtr lParam, ref bool handled)
        {
            switch (msg)
            {
                case 0x0024:
                    WmGetMinMaxInfo(hwnd, lParam);
                    handled = true;
                    break;
            }

            return (IntPtr) 0;
        }

        private static 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
            int MONITOR_DEFAULTTONEAREST = 0x00000002;
            IntPtr monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);

            if (monitor != IntPtr.Zero)
            {
                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);
            }

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


        [DllImport("user32")]
        internal static extern bool GetMonitorInfo(IntPtr hMonitor, MONITORINFO lpmi);

        /// <summary>
        ///
        /// </summary>
        [DllImport("User32")]
        internal static extern IntPtr MonitorFromWindow(IntPtr handle, int flags);

        #region Nested type: MINMAXINFO

        [StructLayout(LayoutKind.Sequential)]
        internal struct MINMAXINFO
        {
            public POINT ptReserved;
            public POINT ptMaxSize;
            public POINT ptMaxPosition;
            public POINT ptMinTrackSize;
            public POINT ptMaxTrackSize;
        } ;

        #endregion

        #region Nested type: MONITORINFO

        /// <summary>
        /// </summary>
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        internal class MONITORINFO
        {
            /// <summary>
            /// </summary>            
            public int cbSize = Marshal.SizeOf(typeof(MONITORINFO));

            /// <summary>
            /// </summary>            
            public RECT rcMonitor;

            /// <summary>
            /// </summary>            
            public RECT rcWork;

            /// <summary>
            /// </summary>            
            public int dwFlags;
        }

        #endregion

        #region Nested type: POINT

        /// <summary>
        /// POINT aka POINTAPI
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        internal struct POINT
        {
            /// <summary>
            /// x coordinate of point.
            /// </summary>
            public int x;

            /// <summary>
            /// y coordinate of point.
            /// </summary>
            public int y;

            /// <summary>
            /// Construct a point of coordinates (x,y).
            /// </summary>
            public POINT(int x, int y)
            {
                this.x = x;
                this.y = y;
            }
        }

        #endregion

        #region Nested type: RECT

        /// <summary> Win32 </summary>
        [StructLayout(LayoutKind.Sequential, Pack = 0)]
        internal struct RECT
        {
            /// <summary> Win32 </summary>
            public int left;

            /// <summary> Win32 </summary>
            public int top;

            /// <summary> Win32 </summary>
            public int right;

            /// <summary> Win32 </summary>
            public int bottom;

            /// <summary> Win32 </summary>
            public static readonly RECT Empty;

            /// <summary> Win32 </summary>
            public int Width
            {
                get { return Math.Abs(right - left); } // Abs needed for BIDI OS
            }

            /// <summary> Win32 </summary>
            public int Height
            {
                get { return bottom - top; }
            }

            /// <summary> Win32 </summary>
            public RECT(int left, int top, int right, int bottom)
            {
                this.left = left;
                this.top = top;
                this.right = right;
                this.bottom = bottom;
            }


            /// <summary> Win32 </summary>
            public RECT(RECT rcSrc)
            {
                left = rcSrc.left;
                top = rcSrc.top;
                right = rcSrc.right;
                bottom = rcSrc.bottom;
            }

            /// <summary> Win32 </summary>
            public bool IsEmpty
            {
                get
                {
                    // BUGBUG : On Bidi OS (hebrew arabic) left > right
                    return left >= right || top >= bottom;
                }
            }

            /// <summary> Return a user friendly representation of this struct </summary>
            public override string ToString()
            {
                if (this == Empty)
                {
                    return "RECT {Empty}";
                }
                return "RECT { left : " + left + " / top : " + top + " / right : " + right + " / bottom : " + bottom +
                       " }";
            }

            /// <summary> Determine if 2 RECT are equal (deep compare) </summary>
            public override bool Equals(object obj)
            {
                if (!(obj is Rect))
                {
                    return false;
                }
                return (this == (RECT)obj);
            }

            /// <summary>Return the HashCode for this struct (not garanteed to be unique)</summary>
            public override int GetHashCode()
            {
                return left.GetHashCode() + top.GetHashCode() + right.GetHashCode() + bottom.GetHashCode();
            }


            /// <summary> Determine if 2 RECT are equal (deep compare)</summary>
            public static bool operator ==(RECT rect1, RECT rect2)
            {
                return (rect1.left == rect2.left && rect1.top == rect2.top && rect1.right == rect2.right &&
                        rect1.bottom == rect2.bottom);
            }

            /// <summary> Determine if 2 RECT are different(deep compare)</summary>
            public static bool operator !=(RECT rect1, RECT rect2)
            {
                return !(rect1 == rect2);
            }
        }

        #endregion
    }

 

------------------------------------------

附录：

Windows Message Codes

Sorted by Name	Sorted by Code

Message	Code		Code	Message
WM_ACTIVATE	0x0006		0x0000	WM_NULL
WM_ACTIVATEAPP	0x001C		0x0001	WM_CREATE
WM_AFXFIRST	0x0360		0x0002	WM_DESTROY
WM_AFXLAST	0x037F		0x0003	WM_MOVE
WM_APP	0x8000		0x0005	WM_SIZE
WM_APPCOMMAND	0x0319		0x0006	WM_ACTIVATE
WM_ASKCBFORMATNAME	0x030C		0x0007	WM_SETFOCUS
WM_CANCELJOURNAL	0x004B		0x0008	WM_KILLFOCUS
WM_CANCELMODE	0x001F		0x000A	WM_ENABLE
WM_CAPTURECHANGED	0x0215		0x000B	WM_SETREDRAW
WM_CHANGECBCHAIN	0x030D		0x000C	WM_SETTEXT
WM_CHANGEUISTATE	0x0127		0x000D	WM_GETTEXT
WM_CHAR	0x0102		0x000E	WM_GETTEXTLENGTH
WM_CHARTOITEM	0x002F		0x000F	WM_PAINT
WM_CHILDACTIVATE	0x0022		0x0010	WM_CLOSE
WM_CLEAR	0x0303		0x0011	WM_QUERYENDSESSION
WM_CLOSE	0x0010		0x0013	WM_QUERYOPEN
WM_COMMAND	0x0111		0x0016	WM_ENDSESSION
WM_COMMNOTIFY	0x0044		0x0012	WM_QUIT
WM_COMPACTING	0x0041		0x0014	WM_ERASEBKGND
WM_COMPAREITEM	0x0039		0x0015	WM_SYSCOLORCHANGE
WM_CONTEXTMENU	0x007B		0x0018	WM_SHOWWINDOW
WM_COPY	0x0301		0x001A	WM_WININICHANGE
WM_COPYDATA	0x004A		0x001A	WM_SETTINGCHANGE
WM_CREATE	0x0001		0x001B	WM_DEVMODECHANGE
WM_CTLCOLORBTN	0x0135		0x001C	WM_ACTIVATEAPP
WM_CTLCOLORDLG	0x0136		0x001D	WM_FONTCHANGE
WM_CTLCOLOREDIT	0x0133		0x001E	WM_TIMECHANGE
WM_CTLCOLORLISTBOX	0x0134		0x001F	WM_CANCELMODE
WM_CTLCOLORMSGBOX	0x0132		0x0020	WM_SETCURSOR
WM_CTLCOLORSCROLLBAR	0x0137		0x0021	WM_MOUSEACTIVATE
WM_CTLCOLORSTATIC	0x0138		0x0022	WM_CHILDACTIVATE
WM_CUT	0x0300		0x0023	WM_QUEUESYNC
WM_DEADCHAR	0x0103		0x0024	WM_GETMINMAXINFO
WM_DELETEITEM	0x002D		0x0026	WM_PAINTICON
WM_DESTROY	0x0002		0x0027	WM_ICONERASEBKGND
WM_DESTROYCLIPBOARD	0x0307		0x0028	WM_NEXTDLGCTL
WM_DEVICECHANGE	0x0219		0x002A	WM_SPOOLERSTATUS
WM_DEVMODECHANGE	0x001B		0x002B	WM_DRAWITEM
WM_DISPLAYCHANGE	0x007E		0x002C	WM_MEASUREITEM
WM_DRAWCLIPBOARD	0x0308		0x002D	WM_DELETEITEM
WM_DRAWITEM	0x002B		0x002E	WM_VKEYTOITEM
WM_DROPFILES	0x0233		0x002F	WM_CHARTOITEM
WM_ENABLE	0x000A		0x0030	WM_SETFONT
WM_ENDSESSION	0x0016		0x0031	WM_GETFONT
WM_ENTERIDLE	0x0121		0x0032	WM_SETHOTKEY
WM_ENTERMENULOOP	0x0211		0x0033	WM_GETHOTKEY
WM_ENTERSIZEMOVE	0x0231		0x0037	WM_QUERYDRAGICON
WM_ERASEBKGND	0x0014		0x0039	WM_COMPAREITEM
WM_EXITMENULOOP	0x0212		0x003D	WM_GETOBJECT
WM_EXITSIZEMOVE	0x0232		0x0041	WM_COMPACTING
WM_FONTCHANGE	0x001D		0x0044	WM_COMMNOTIFY
WM_GETDLGCODE	0x0087		0x0046	WM_WINDOWPOSCHANGING
WM_GETFONT	0x0031		0x0047	WM_WINDOWPOSCHANGED
WM_GETHOTKEY	0x0033		0x0048	WM_POWER
WM_GETICON	0x007F		0x004A	WM_COPYDATA
WM_GETMINMAXINFO	0x0024		0x004B	WM_CANCELJOURNAL
WM_GETOBJECT	0x003D		0x004E	WM_NOTIFY
WM_GETTEXT	0x000D		0x0050	WM_INPUTLANGCHANGEREQUEST
WM_GETTEXTLENGTH	0x000E		0x0051	WM_INPUTLANGCHANGE
WM_HANDHELDFIRST	0x0358		0x0052	WM_TCARD
WM_HANDHELDLAST	0x035F		0x0053	WM_HELP
WM_HELP	0x0053		0x0054	WM_USERCHANGED
WM_HOTKEY	0x0312		0x0055	WM_NOTIFYFORMAT
WM_HSCROLL	0x0114		0x007B	WM_CONTEXTMENU
WM_HSCROLLCLIPBOARD	0x030E		0x007C	WM_STYLECHANGING
WM_ICONERASEBKGND	0x0027		0x007D	WM_STYLECHANGED
WM_IME_CHAR	0x0286		0x007E	WM_DISPLAYCHANGE
WM_IME_COMPOSITION	0x010F		0x007F	WM_GETICON
WM_IME_COMPOSITIONFULL	0x0284		0x0080	WM_SETICON
WM_IME_CONTROL	0x0283		0x0081	WM_NCCREATE
WM_IME_ENDCOMPOSITION	0x010E		0x0082	WM_NCDESTROY
WM_IME_KEYDOWN	0x0290		0x0083	WM_NCCALCSIZE
WM_IME_KEYLAST	0x010F		0x0084	WM_NCHITTEST
WM_IME_KEYUP	0x0291		0x0085	WM_NCPAINT
WM_IME_NOTIFY	0x0282		0x0086	WM_NCACTIVATE
WM_IME_REQUEST	0x0288		0x0087	WM_GETDLGCODE
WM_IME_SELECT	0x0285		0x0088	WM_SYNCPAINT
WM_IME_SETCONTEXT	0x0281		0x00A0	WM_NCMOUSEMOVE
WM_IME_STARTCOMPOSITION	0x010D		0x00A1	WM_NCLBUTTONDOWN
WM_INITDIALOG	0x0110		0x00A2	WM_NCLBUTTONUP
WM_INITMENU	0x0116		0x00A3	WM_NCLBUTTONDBLCLK
WM_INITMENUPOPUP	0x0117		0x00A4	WM_NCRBUTTONDOWN
WM_INPUT	0x00FF		0x00A5	WM_NCRBUTTONUP
WM_INPUTLANGCHANGE	0x0051		0x00A6	WM_NCRBUTTONDBLCLK
WM_INPUTLANGCHANGEREQUEST	0x0050		0x00A7	WM_NCMBUTTONDOWN
WM_KEYDOWN	0x0100		0x00A8	WM_NCMBUTTONUP
WM_KEYFIRST	0x0100		0x00A9	WM_NCMBUTTONDBLCLK
WM_KEYLAST	0x0108		0x00AB	WM_NCXBUTTONDOWN
WM_KEYLAST	0x0109		0x00AC	WM_NCXBUTTONUP
WM_KEYUP	0x0101		0x00AD	WM_NCXBUTTONDBLCLK
WM_KILLFOCUS	0x0008		0x00FF	WM_INPUT
WM_LBUTTONDBLCLK	0x0203		0x0100	WM_KEYFIRST
WM_LBUTTONDOWN	0x0201		0x0100	WM_KEYDOWN
WM_LBUTTONUP	0x0202		0x0101	WM_KEYUP
WM_MBUTTONDBLCLK	0x0209		0x0102	WM_CHAR
WM_MBUTTONDOWN	0x0207		0x0103	WM_DEADCHAR
WM_MBUTTONUP	0x0208		0x0104	WM_SYSKEYDOWN
WM_MDIACTIVATE	0x0222		0x0105	WM_SYSKEYUP
WM_MDICASCADE	0x0227		0x0106	WM_SYSCHAR
WM_MDICREATE	0x0220		0x0107	WM_SYSDEADCHAR
WM_MDIDESTROY	0x0221		0x0109	WM_UNICHAR
WM_MDIGETACTIVE	0x0229		0x0109	WM_KEYLAST
WM_MDIICONARRANGE	0x0228		0x0108	WM_KEYLAST
WM_MDIMAXIMIZE	0x0225		0x010D	WM_IME_STARTCOMPOSITION
WM_MDINEXT	0x0224		0x010E	WM_IME_ENDCOMPOSITION
WM_MDIREFRESHMENU	0x0234		0x010F	WM_IME_COMPOSITION
WM_MDIRESTORE	0x0223		0x010F	WM_IME_KEYLAST
WM_MDISETMENU	0x0230		0x0110	WM_INITDIALOG
WM_MDITILE	0x0226		0x0111	WM_COMMAND
WM_MEASUREITEM	0x002C		0x0112	WM_SYSCOMMAND
WM_MENUCHAR	0x0120		0x0113	WM_TIMER
WM_MENUCOMMAND	0x0126		0x0114	WM_HSCROLL
WM_MENUDRAG	0x0123		0x0115	WM_VSCROLL
WM_MENUGETOBJECT	0x0124		0x0116	WM_INITMENU
WM_MENURBUTTONUP	0x0122		0x0117	WM_INITMENUPOPUP
WM_MENUSELECT	0x011F		0x011F	WM_MENUSELECT
WM_MOUSEACTIVATE	0x0021		0x0120	WM_MENUCHAR
WM_MOUSEFIRST	0x0200		0x0121	WM_ENTERIDLE
WM_MOUSEHOVER	0x02A1		0x0122	WM_MENURBUTTONUP
WM_MOUSELAST(2K,XP,2k3)	0x020D		0x0123	WM_MENUDRAG
WM_MOUSELAST(95)	0x0209		0x0124	WM_MENUGETOBJECT
WM_MOUSELAST(NT4,98)	0x020A		0x0125	WM_UNINITMENUPOPUP
WM_MOUSELEAVE	0x02A3		0x0126	WM_MENUCOMMAND
WM_MOUSEMOVE	0x0200		0x0127	WM_CHANGEUISTATE
WM_MOUSEWHEEL	0x020A		0x0128	WM_UPDATEUISTATE
WM_MOVE	0x0003		0x0129	WM_QUERYUISTATE
WM_MOVING	0x0216		0x0132	WM_CTLCOLORMSGBOX
WM_NCACTIVATE	0x0086		0x0133	WM_CTLCOLOREDIT
WM_NCCALCSIZE	0x0083		0x0134	WM_CTLCOLORLISTBOX
WM_NCCREATE	0x0081		0x0135	WM_CTLCOLORBTN
WM_NCDESTROY	0x0082		0x0136	WM_CTLCOLORDLG
WM_NCHITTEST	0x0084		0x0137	WM_CTLCOLORSCROLLBAR
WM_NCLBUTTONDBLCLK	0x00A3		0x0138	WM_CTLCOLORSTATIC
WM_NCLBUTTONDOWN	0x00A1		0x0200	WM_MOUSEFIRST
WM_NCLBUTTONUP	0x00A2		0x0200	WM_MOUSEMOVE
WM_NCMBUTTONDBLCLK	0x00A9		0x0201	WM_LBUTTONDOWN
WM_NCMBUTTONDOWN	0x00A7		0x0202	WM_LBUTTONUP
WM_NCMBUTTONUP	0x00A8		0x0203	WM_LBUTTONDBLCLK
WM_NCMOUSEHOVER	0x02A0		0x0204	WM_RBUTTONDOWN
WM_NCMOUSELEAVE	0x02A2		0x0205	WM_RBUTTONUP
WM_NCMOUSEMOVE	0x00A0		0x0206	WM_RBUTTONDBLCLK
WM_NCPAINT	0x0085		0x0207	WM_MBUTTONDOWN
WM_NCRBUTTONDBLCLK	0x00A6		0x0208	WM_MBUTTONUP
WM_NCRBUTTONDOWN	0x00A4		0x0209	WM_MBUTTONDBLCLK
WM_NCRBUTTONUP	0x00A5		0x0209	WM_MOUSELAST(95)
WM_NCXBUTTONDBLCLK	0x00AD		0x020A	WM_MOUSEWHEEL
WM_NCXBUTTONDOWN	0x00AB		0x020A	WM_MOUSELAST(NT4,98)
WM_NCXBUTTONUP	0x00AC		0x020B	WM_XBUTTONDOWN
WM_NEXTDLGCTL	0x0028		0x020C	WM_XBUTTONUP
WM_NEXTMENU	0x0213		0x020D	WM_XBUTTONDBLCLK
WM_NOTIFY	0x004E		0x020D	WM_MOUSELAST(2K,XP,2k3)
WM_NOTIFYFORMAT	0x0055		0x0210	WM_PARENTNOTIFY
WM_NULL	0x0000		0x0211	WM_ENTERMENULOOP
WM_PAINT	0x000F		0x0212	WM_EXITMENULOOP
WM_PAINTCLIPBOARD	0x0309		0x0213	WM_NEXTMENU
WM_PAINTICON	0x0026		0x0214	WM_SIZING
WM_PALETTECHANGED	0x0311		0x0215	WM_CAPTURECHANGED
WM_PALETTEISCHANGING	0x0310		0x0216	WM_MOVING
WM_PARENTNOTIFY	0x0210		0x0218	WM_POWERBROADCAST
WM_PASTE	0x0302		0x0219	WM_DEVICECHANGE
WM_PENWINFIRST	0x0380		0x0220	WM_MDICREATE
WM_PENWINLAST	0x038F		0x0221	WM_MDIDESTROY
WM_POWER	0x0048		0x0222	WM_MDIACTIVATE
WM_POWERBROADCAST	0x0218		0x0223	WM_MDIRESTORE
WM_PRINT	0x0317		0x0224	WM_MDINEXT
WM_PRINTCLIENT	0x0318		0x0225	WM_MDIMAXIMIZE
WM_QUERYDRAGICON	0x0037		0x0226	WM_MDITILE
WM_QUERYENDSESSION	0x0011		0x0227	WM_MDICASCADE
WM_QUERYNEWPALETTE	0x030F		0x0228	WM_MDIICONARRANGE
WM_QUERYOPEN	0x0013		0x0229	WM_MDIGETACTIVE
WM_QUERYUISTATE	0x0129		0x0230	WM_MDISETMENU
WM_QUEUESYNC	0x0023		0x0231	WM_ENTERSIZEMOVE
WM_QUIT	0x0012		0x0232	WM_EXITSIZEMOVE
WM_RBUTTONDBLCLK	0x0206		0x0233	WM_DROPFILES
WM_RBUTTONDOWN	0x0204		0x0234	WM_MDIREFRESHMENU
WM_RBUTTONUP	0x0205		0x0281	WM_IME_SETCONTEXT
WM_RENDERALLFORMATS	0x0306		0x0282	WM_IME_NOTIFY
WM_RENDERFORMAT	0x0305		0x0283	WM_IME_CONTROL
WM_SETCURSOR	0x0020		0x0284	WM_IME_COMPOSITIONFULL
WM_SETFOCUS	0x0007		0x0285	WM_IME_SELECT
WM_SETFONT	0x0030		0x0286	WM_IME_CHAR
WM_SETHOTKEY	0x0032		0x0288	WM_IME_REQUEST
WM_SETICON	0x0080		0x0290	WM_IME_KEYDOWN
WM_SETREDRAW	0x000B		0x0291	WM_IME_KEYUP
WM_SETTEXT	0x000C		0x02A1	WM_MOUSEHOVER
WM_SETTINGCHANGE	0x001A		0x02A3	WM_MOUSELEAVE
WM_SHOWWINDOW	0x0018		0x02A0	WM_NCMOUSEHOVER
WM_SIZE	0x0005		0x02A2	WM_NCMOUSELEAVE
WM_SIZECLIPBOARD	0x030B		0x02B1	WM_WTSSESSION_CHANGE
WM_SIZING	0x0214		0x02C0	WM_TABLET_FIRST
WM_SPOOLERSTATUS	0x002A		0x02DF	WM_TABLET_LAST
WM_STYLECHANGED	0x007D		0x0300	WM_CUT
WM_STYLECHANGING	0x007C		0x0301	WM_COPY
WM_SYNCPAINT	0x0088		0x0302	WM_PASTE
WM_SYSCHAR	0x0106		0x0303	WM_CLEAR
WM_SYSCOLORCHANGE	0x0015		0x0304	WM_UNDO
WM_SYSCOMMAND	0x0112		0x0305	WM_RENDERFORMAT
WM_SYSDEADCHAR	0x0107		0x0306	WM_RENDERALLFORMATS
WM_SYSKEYDOWN	0x0104		0x0307	WM_DESTROYCLIPBOARD
WM_SYSKEYUP	0x0105		0x0308	WM_DRAWCLIPBOARD
WM_TABLET_FIRST	0x02C0		0x0309	WM_PAINTCLIPBOARD
WM_TABLET_LAST	0x02DF		0x030A	WM_VSCROLLCLIPBOARD
WM_TCARD	0x0052		0x030B	WM_SIZECLIPBOARD
WM_THEMECHANGED	0x031A		0x030C	WM_ASKCBFORMATNAME
WM_TIMECHANGE	0x001E		0x030D	WM_CHANGECBCHAIN
WM_TIMER	0x0113		0x030E	WM_HSCROLLCLIPBOARD
WM_UNDO	0x0304		0x030F	WM_QUERYNEWPALETTE
WM_UNICHAR	0x0109		0x0310	WM_PALETTEISCHANGING
WM_UNINITMENUPOPUP	0x0125		0x0311	WM_PALETTECHANGED
WM_UPDATEUISTATE	0x0128		0x0312	WM_HOTKEY
WM_USER	0x0400		0x0317	WM_PRINT
WM_USERCHANGED	0x0054		0x0318	WM_PRINTCLIENT
WM_VKEYTOITEM	0x002E		0x0319	WM_APPCOMMAND
WM_VSCROLL	0x0115		0x031A	WM_THEMECHANGED
WM_VSCROLLCLIPBOARD	0x030A		0x0358	WM_HANDHELDFIRST
WM_WINDOWPOSCHANGED	0x0047		0x035F	WM_HANDHELDLAST
WM_WINDOWPOSCHANGING	0x0046		0x0360	WM_AFXFIRST
WM_WININICHANGE	0x001A		0x037F	WM_AFXLAST
WM_WTSSESSION_CHANGE	0x02B1		0x0380	WM_PENWINFIRST
WM_XBUTTONDBLCLK	0x020D		0x038F	WM_PENWINLAST
WM_XBUTTONDOWN	0x020B		0x0400	WM_USER
WM_XBUTTONUP	0x020C		0x8000	WM_APP