public void Hide()
{
var appBarData = new NativeMethods.APPBARDATA(this.Handle, uEdge: NativeMethods.ABE.ABE_TOP);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_QUERYPOS, ref appBarData);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETPOS, ref appBarData);
this.visible = false;
}
public void Destroy()
{
// unregister as AppBar
var appBarData = new NativeMethods.APPBARDATA(this.Handle);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_REMOVE, ref appBarData);
DestroyHandle();
}
private static void InternalSetAutoHide(bool hide)
{
var data = new NativeMethods.APPBARDATA {
lParam = hide ? NativeMethods.ABS.Autohide : NativeMethods.ABS.AlwaysOnTop
};
NativeMethods.SHAppBarMessage(NativeMethods.ABM.SetState, ref data);
UpdateTaskbar();
}
public static void AppBarWindowPosChanged(IntPtr hwnd)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = (int)Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
abd.hWnd = hwnd;
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_WINDOWPOSCHANGED, ref abd);
interopDone();
}
public static void AppBarActivate(IntPtr hwnd)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = (int)Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
abd.hWnd = hwnd;
abd.lParam = (IntPtr)Convert.ToInt32(true);
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_ACTIVATE, ref abd);
// apparently the taskbars like to pop up when app bars change
if (Settings.EnableTaskbar)
{
SetSecondaryTaskbarVisibility(NativeMethods.WindowShowStyle.Hide);
}
}
/// <summary>
/// Retrieves taskbar position and alignment.
/// </summary>
/// <returns>Taskbar position and alignment.</returns>
public static TaskBarInfo GetTaskBarInfo()
{
// allocate appbardata structure
NativeMethods.APPBARDATA abdata = new NativeMethods.APPBARDATA()
{
hWnd = IntPtr.Zero
};
abdata.cbSize = (uint)Marshal.SizeOf(abdata);
// get task bar info
IntPtr result = NativeMethods.SHAppBarMessage(NativeMethods.ABMsg.ABM_GETTASKBARPOS, ref abdata);
// return null if the call failed
if (result == IntPtr.Zero)
{
throw new Exception("Could not retrieve taskbar information.");
}
Rectangle position = abdata.rc;
TaskBarAlignment alignment;
switch (abdata.uEdge)
{
case NativeMethods.ABEdge.ABE_BOTTOM:
alignment = TaskBarAlignment.Bottom;
break;
case NativeMethods.ABEdge.ABE_TOP:
alignment = TaskBarAlignment.Top;
break;
case NativeMethods.ABEdge.ABE_LEFT:
alignment = TaskBarAlignment.Left;
break;
case NativeMethods.ABEdge.ABE_RIGHT:
alignment = TaskBarAlignment.Right;
break;
default:
throw new ArgumentOutOfRangeException("Couldn't retrieve location of taskbar.");
}
return(new TaskBarInfo()
{
Position = position, Alignment = alignment
});
}
protected void Reposition(int width = 0)
{
if (this.IsRepositioning || !this.IsRegistered)
{
return;
}
try
{
this.IsRepositioning = true;
if (width == 0)
{
width = this.Width;
}
var workingArea = Screen.FromControl(this).Bounds;
var edge = (this.Location.X < workingArea.Width / 2 ? ABEdge.ABE_LEFT : ABEdge.ABE_RIGHT);
var abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = Handle;
abd.uEdge = (int)edge;
abd.rc.top = workingArea.Top;
abd.rc.bottom = workingArea.Height;
if (edge == ABEdge.ABE_LEFT)
{
abd.rc.left = workingArea.Left;
abd.rc.right = workingArea.Left + width;
}
else
{
abd.rc.right = workingArea.Right;
abd.rc.left = workingArea.Right - width;
}
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_QUERYPOS, ref abd);
if (edge == ABEdge.ABE_LEFT)
{
abd.rc.right = abd.rc.left + width;
}
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_SETPOS, ref abd);
this.Bounds = new Rectangle(abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top);
}
finally
{
this.IsRepositioning = false;
}
}
public static void SetWinTaskbarState(WinTaskbarState state)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = (int)Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
abd.hWnd = NativeMethods.FindWindow("Shell_TrayWnd");
if (NotificationArea.Instance.Handle != null && NotificationArea.Instance.Handle != IntPtr.Zero)
{
while (abd.hWnd == NotificationArea.Instance.Handle)
{
abd.hWnd = NativeMethods.FindWindowEx(IntPtr.Zero, abd.hWnd, "Shell_TrayWnd", "");
}
}
abd.lParam = (IntPtr)state;
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETSTATE, ref abd);
}
public AppBarNativeWindow(int barHeight, bool topBar)
{
this.height = barHeight;
visible = false;
isTopMost = false;
edge = topBar ? NativeMethods.ABE.ABE_TOP : NativeMethods.ABE.ABE_BOTTOM;
this.CreateHandle(new CreateParams {
Parent = NativeMethods.HWND_MESSAGE, ClassName = "Message"
});
callbackMessageNum = NativeMethods.WM_USER + count++;
// register as AppBar
var appBarData = new NativeMethods.APPBARDATA(this.Handle, callbackMessageNum);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_NEW, ref appBarData);
}
internal static void ShowHideWindowsTaskbar(bool showWindowsTaskbar)
{
var appBarData = new NativeMethods.APPBARDATA(SystemAndProcessInformation.taskbarHandle);
var state = (NativeMethods.ABS)(uint) NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_GETSTATE, ref appBarData);
appBarData.lParam = (IntPtr)(showWindowsTaskbar ? state & ~NativeMethods.ABS.ABS_AUTOHIDE : state | NativeMethods.ABS.ABS_AUTOHIDE);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETSTATE, ref appBarData);
var showHide = showWindowsTaskbar ? NativeMethods.SW.SW_SHOWNA : NativeMethods.SW.SW_HIDE;
NativeMethods.ShowWindow(SystemAndProcessInformation.taskbarHandle, showHide);
if (SystemAndProcessInformation.isAtLeastVista)
{
NativeMethods.ShowWindow(SystemAndProcessInformation.startButtonHandle, showHide);
}
isWindowsTaskbarShown = showWindowsTaskbar;
}
public bool SetPosition(Monitor monitor)
{
this.monitor = monitor;
var appBarData = new NativeMethods.APPBARDATA(this.Handle, uEdge: edge, rc: new NativeMethods.RECT {
left = monitor.Bounds.Left, right = monitor.Bounds.Right
});
if (edge == NativeMethods.ABE.ABE_TOP)
{
appBarData.rc.top = monitor.Bounds.Top;
appBarData.rc.bottom = appBarData.rc.top + this.height;
}
else
{
appBarData.rc.bottom = monitor.Bounds.Bottom;
appBarData.rc.top = appBarData.rc.bottom - this.height;
}
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_QUERYPOS, ref appBarData);
if (edge == NativeMethods.ABE.ABE_TOP)
{
appBarData.rc.bottom = appBarData.rc.top + this.height;
}
else
{
appBarData.rc.top = appBarData.rc.bottom - this.height;
}
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETPOS, ref appBarData);
var changedPosition = appBarData.rc.bottom != rect.bottom || appBarData.rc.top != rect.top ||
appBarData.rc.left != rect.left || appBarData.rc.right != rect.right;
this.rect = appBarData.rc;
this.visible = true;
return(changedPosition);
}
private void RegisterOrUnregisterBar(bool register)
{
if (this.IsRegistering)
{
return;
}
try
{
this.IsRegistering = true;
var abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = Handle;
if (register == this.IsRegistered)
{
return;
}
else if (register)
{
abd.uCallbackMessage = this.callBackId;
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_NEW, ref abd);
this.IsRegistered = true;
this.Reposition();
}
else
{
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_REMOVE, ref abd);
this.IsRegistered = false;
}
}
finally
{
this.IsRegistering = false;
}
}
//This file is from before r416
public static int RegisterBar(IntPtr handle, Size size)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = handle;
if (!isBarRegistered)
{
uCallBack = NativeMethods.RegisterWindowMessage("AppBarMessage" + Guid.NewGuid().ToString());
abd.uCallbackMessage = uCallBack;
uint ret = NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_NEW, ref abd);
isBarRegistered = true;
ABSetPos(handle, size);
}
else
{
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_REMOVE, ref abd);
isBarRegistered = false;
}
return(uCallBack);
}
private static void InvalidateInternal()
{
_handle = Interop.FindWindow("Shell_TrayWnd", null);
var data = new NativeMethods.APPBARDATA(_handle);
Interop.SHAppBarMessage(NativeMethods.ShellMessages.ABM_GETTASKBARPOS, ref data);
_position = (TaskbarPosition)data.uEdge;
_left = data.rc.left;
_top = data.rc.top;
_right = data.rc.right;
_bottom = data.rc.bottom;
data = new NativeMethods.APPBARDATA(_handle);
var state = (NativeMethods.TaskbarState)Interop.SHAppBarMessage(NativeMethods.ShellMessages.ABM_GETSTATE, ref data).ToInt32();
_alwaysOnTop = state == NativeMethods.TaskbarState.ABS_ALWAYSONTOP || Windows.IsWindows7OrHigher;
_autoHide = state == NativeMethods.TaskbarState.ABS_AUTOHIDE;
_isCacheValid = true;
}
public static int RegisterBar(Window abWindow, Screen screen, double width, double height, ABEdge edge = ABEdge.ABE_TOP)
{
lock (appBarLock)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
IntPtr handle = new WindowInteropHelper(abWindow).Handle;
abd.hWnd = handle;
if (!appBars.Contains(handle))
{
uCallBack = NativeMethods.RegisterWindowMessage("AppBarMessage");
abd.uCallbackMessage = uCallBack;
prepareForInterop();
uint ret = NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_NEW, ref abd);
interopDone();
appBars.Add(handle);
CairoLogger.Instance.Debug("Created AppBar for handle " + handle.ToString());
ABSetPos(abWindow, screen, width, height, edge, true);
}
else
{
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_REMOVE, ref abd);
interopDone();
appBars.Remove(handle);
CairoLogger.Instance.Debug("Removed AppBar for handle " + handle.ToString());
return(0);
}
}
return(uCallBack);
}
public void Hide()
{
var appBarData = new NativeMethods.APPBARDATA(this.Handle, uEdge: NativeMethods.ABE.ABE_TOP);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_QUERYPOS, ref appBarData);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETPOS, ref appBarData);
this.visible = false;
}
/// <summary>
/// Retrieves taskbar position and alignment.
/// </summary>
/// <returns>Taskbar position and alignment.</returns>
public static TaskBarInfo GetTaskBarInfo()
{
// allocate appbardata structure
NativeMethods.APPBARDATA abdata = new NativeMethods.APPBARDATA() { hWnd = IntPtr.Zero };
abdata.cbSize = (uint)Marshal.SizeOf(abdata);
// get task bar info
IntPtr result = NativeMethods.SHAppBarMessage(NativeMethods.ABMsg.ABM_GETTASKBARPOS, ref abdata);
// return null if the call failed
if (result == IntPtr.Zero)
throw new Exception("Could not retrieve taskbar information.");
Rect position = abdata.rc;
TaskBarAlignment alignment;
switch (abdata.uEdge)
{
case NativeMethods.ABEdge.ABE_BOTTOM:
alignment = TaskBarAlignment.Bottom;
break;
case NativeMethods.ABEdge.ABE_TOP:
alignment = TaskBarAlignment.Top;
break;
case NativeMethods.ABEdge.ABE_LEFT:
alignment = TaskBarAlignment.Left;
break;
case NativeMethods.ABEdge.ABE_RIGHT:
alignment = TaskBarAlignment.Right;
break;
default:
throw new ArgumentOutOfRangeException("Couldn't retrieve location of taskbar.");
}
return new TaskBarInfo() { Position = position, Alignment = alignment };
}
public static extern IntPtr SHAppBarMessage([MarshalAs(UnmanagedType.U4)] NativeMethods.ShellMessages dwMessage, ref NativeMethods.APPBARDATA pData);
protected void Reposition(int width=0)
{
if (this.IsRepositioning || !this.IsRegistered)
return;
try
{
this.IsRepositioning = true;
if (width == 0)
width = this.Width;
var workingArea = Screen.FromControl(this).Bounds;
var edge = (this.Location.X < workingArea.Width / 2 ? ABEdge.ABE_LEFT : ABEdge.ABE_RIGHT);
var abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = Handle;
abd.uEdge = (int)edge;
abd.rc.top = workingArea.Top;
abd.rc.bottom = workingArea.Height;
if (edge == ABEdge.ABE_LEFT)
{
abd.rc.left = workingArea.Left;
abd.rc.right = workingArea.Left + width;
}
else
{
abd.rc.right = workingArea.Right;
abd.rc.left = workingArea.Right - width;
}
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_QUERYPOS, ref abd);
if (edge == ABEdge.ABE_LEFT)
{
abd.rc.right = abd.rc.left + width;
}
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_SETPOS, ref abd);
this.Bounds = new Rectangle(abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top);
}
finally
{
this.IsRepositioning = false;
}
}
public static void ABSetPos(Window abWindow, double width, double height, ABEdge edge)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
IntPtr handle = new WindowInteropHelper(abWindow).Handle;
abd.hWnd = handle;
abd.uEdge = (int)edge;
int sWidth;
int sHeight;
// adjust size for dpi
TransformToPixels(width, height, out sWidth, out sHeight);
if (abd.uEdge == (int)ABEdge.ABE_LEFT || abd.uEdge == (int)ABEdge.ABE_RIGHT)
{
abd.rc.top = 0;
abd.rc.bottom = SystemInformation.WorkingArea.Bottom;
if (abd.uEdge == (int)ABEdge.ABE_LEFT)
{
abd.rc.left = SystemInformation.WorkingArea.Left;
abd.rc.right = abd.rc.left + sWidth;
}
else
{
abd.rc.right = SystemInformation.WorkingArea.Right;
abd.rc.left = abd.rc.right - sWidth;
}
}
else
{
abd.rc.left = SystemInformation.WorkingArea.Left;
abd.rc.right = SystemInformation.WorkingArea.Right;
if (abd.uEdge == (int)ABEdge.ABE_TOP)
{
abd.rc.top = 0;
abd.rc.bottom = abd.rc.top + sHeight;
}
else
{
abd.rc.bottom = SystemInformation.WorkingArea.Bottom;
abd.rc.top = abd.rc.bottom - sHeight;
}
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_QUERYPOS, ref abd);
// system doesn't adjust all edges for us, do some adjustments
switch (abd.uEdge)
{
case (int)ABEdge.ABE_LEFT:
abd.rc.right = abd.rc.left + sWidth;
break;
case (int)ABEdge.ABE_RIGHT:
abd.rc.left = abd.rc.right - sWidth;
break;
case (int)ABEdge.ABE_TOP:
abd.rc.bottom = abd.rc.top + sHeight;
break;
case (int)ABEdge.ABE_BOTTOM:
abd.rc.top = abd.rc.bottom - sHeight;
break;
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETPOS, ref abd);
// tracing
int h = abd.rc.bottom - abd.rc.top;
Trace.WriteLineIf(abd.uEdge == (int)ABEdge.ABE_TOP, "Top AppBar height is " + h.ToString());
Trace.WriteLineIf(abd.uEdge == (int)ABEdge.ABE_BOTTOM, "Bottom AppBar height is " + h.ToString());
abWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), abd.hWnd, abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top);
if (h < sHeight)
{
ABSetPos(abWindow, width, height, edge);
}
}
public static void ABSetPos(IntPtr handle, Size size)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = handle;
abd.uEdge = (int)NativeMethods.ABEdge.ABE_TOP;
if (abd.uEdge == (int)NativeMethods.ABEdge.ABE_LEFT || abd.uEdge == (int)NativeMethods.ABEdge.ABE_RIGHT)
{
abd.rc.top = 0;
abd.rc.bottom = PrimaryMonitorSize.Height;
if (abd.uEdge == (int)NativeMethods.ABEdge.ABE_LEFT)
{
abd.rc.left = 0;
abd.rc.right = size.Width;
}
else
{
abd.rc.right = PrimaryMonitorSize.Width;
abd.rc.left = abd.rc.right - size.Width;
}
}
else
{
abd.rc.left = 0;
abd.rc.right = PrimaryMonitorSize.Width;
if (abd.uEdge == (int)NativeMethods.ABEdge.ABE_TOP)
{
abd.rc.top = 0;
abd.rc.bottom = size.Height;
}
else
{
abd.rc.bottom = PrimaryMonitorSize.Height;
abd.rc.top = abd.rc.bottom - size.Height;
}
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_QUERYPOS, ref abd);
switch (abd.uEdge)
{
case (int)NativeMethods.ABEdge.ABE_LEFT:
abd.rc.right = abd.rc.left + size.Width;
break;
case (int)NativeMethods.ABEdge.ABE_RIGHT:
abd.rc.left = abd.rc.right - size.Width;
break;
case (int)NativeMethods.ABEdge.ABE_TOP:
abd.rc.bottom = abd.rc.top + size.Height;
break;
case (int)NativeMethods.ABEdge.ABE_BOTTOM:
abd.rc.top = abd.rc.bottom - size.Height;
break;
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETPOS, ref abd);
Trace.WriteLineIf(abd.uEdge == (int)NativeMethods.ABEdge.ABE_TOP, "*** TOP EDGE - CX is: " + (abd.rc.bottom - abd.rc.top).ToString());
NativeMethods.MoveWindow(abd.hWnd, abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top, true);
}
private void RegisterOrUnregisterBar(bool register)
{
if (this.IsRegistering)
return;
try
{
this.IsRegistering = true;
var abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
abd.hWnd = Handle;
if (register == this.IsRegistered)
{
return;
}
else if (register)
{
abd.uCallbackMessage = this.callBackId;
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_NEW, ref abd);
this.IsRegistered = true;
this.Reposition();
}
else
{
NativeMethods.SHAppBarMessage((int)ABMsg.ABM_REMOVE, ref abd);
this.IsRegistered = false;
}
}
finally
{
this.IsRegistering = false;
}
}
public static void ABSetPos(Window abWindow, Screen screen, double width, double height, ABEdge edge)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
IntPtr handle = new WindowInteropHelper(abWindow).Handle;
abd.hWnd = handle;
abd.uEdge = (int)edge;
int sWidth = (int)width;
int sHeight = (int)height;
int top = 0;
int left = SystemInformation.WorkingArea.Left;
int right = SystemInformation.WorkingArea.Right;
int bottom = PrimaryMonitorDeviceSize.Height;
if (screen != null)
{
top = screen.Bounds.Y;
left = screen.WorkingArea.Left;
right = screen.WorkingArea.Right;
bottom = screen.Bounds.Bottom;
}
if (abd.uEdge == (int)ABEdge.ABE_LEFT || abd.uEdge == (int)ABEdge.ABE_RIGHT)
{
abd.rc.top = top;
abd.rc.bottom = bottom;
if (abd.uEdge == (int)ABEdge.ABE_LEFT)
{
abd.rc.left = left;
abd.rc.right = abd.rc.left + sWidth;
}
else
{
abd.rc.right = right;
abd.rc.left = abd.rc.right - sWidth;
}
}
else
{
abd.rc.left = left;
abd.rc.right = right;
if (abd.uEdge == (int)ABEdge.ABE_TOP)
{
if (abWindow is Taskbar)
{
abd.rc.top = top + Convert.ToInt32(Startup.MenuBarWindow.Height);
}
else
{
abd.rc.top = top;
}
abd.rc.bottom = abd.rc.top + sHeight;
}
else
{
abd.rc.bottom = bottom;
abd.rc.top = abd.rc.bottom - sHeight;
}
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_QUERYPOS, ref abd);
// system doesn't adjust all edges for us, do some adjustments
switch (abd.uEdge)
{
case (int)ABEdge.ABE_LEFT:
abd.rc.right = abd.rc.left + sWidth;
break;
case (int)ABEdge.ABE_RIGHT:
abd.rc.left = abd.rc.right - sWidth;
break;
case (int)ABEdge.ABE_TOP:
abd.rc.bottom = abd.rc.top + sHeight;
break;
case (int)ABEdge.ABE_BOTTOM:
abd.rc.top = abd.rc.bottom - sHeight;
break;
}
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETPOS, ref abd);
// tracing
int h = abd.rc.bottom - abd.rc.top;
Trace.WriteLineIf(abd.uEdge == (int)ABEdge.ABE_TOP, "Top AppBar height is " + h.ToString());
Trace.WriteLineIf(abd.uEdge == (int)ABEdge.ABE_BOTTOM, "Bottom AppBar height is " + h.ToString());
abWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), abd.hWnd, abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top);
if (h < sHeight)
{
ABSetPos(abWindow, screen, width, height, edge);
}
}
public AppBarNativeWindow(int barHeight, bool topBar)
{
this.height = barHeight;
visible = false;
isTopMost = false;
edge = topBar ? NativeMethods.ABE.ABE_TOP : NativeMethods.ABE.ABE_BOTTOM;
this.CreateHandle(new CreateParams { Parent = NativeMethods.HWND_MESSAGE, ClassName = "Message" });
callbackMessageNum = NativeMethods.WM_USER + count++;
// register as AppBar
var appBarData = new NativeMethods.APPBARDATA(this.Handle, callbackMessageNum);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_NEW, ref appBarData);
}
public void Destroy()
{
// unregister as AppBar
var appBarData = new NativeMethods.APPBARDATA(this.Handle);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_REMOVE, ref appBarData);
DestroyHandle();
}
public static void ABSetPos(Window abWindow, Screen screen, double width, double height, ABEdge edge, bool isCreate = false)
{
lock (appBarLock)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
IntPtr handle = new WindowInteropHelper(abWindow).Handle;
abd.hWnd = handle;
abd.uEdge = (int)edge;
int sWidth = (int)width;
int sHeight = (int)height;
int top = 0;
int left = SystemInformation.WorkingArea.Left;
int right = SystemInformation.WorkingArea.Right;
int bottom = PrimaryMonitorDeviceSize.Height;
double dpiScale = PresentationSource.FromVisual(abWindow).CompositionTarget.TransformToDevice.M11;
if (screen != null)
{
top = screen.Bounds.Y;
left = screen.WorkingArea.Left;
right = screen.WorkingArea.Right;
bottom = screen.Bounds.Bottom;
}
if (abd.uEdge == (int)ABEdge.ABE_LEFT || abd.uEdge == (int)ABEdge.ABE_RIGHT)
{
abd.rc.top = top;
abd.rc.bottom = bottom;
if (abd.uEdge == (int)ABEdge.ABE_LEFT)
{
abd.rc.left = left;
abd.rc.right = abd.rc.left + sWidth;
}
else
{
abd.rc.right = right;
abd.rc.left = abd.rc.right - sWidth;
}
}
else
{
abd.rc.left = left;
abd.rc.right = right;
if (abd.uEdge == (int)ABEdge.ABE_TOP)
{
if (abWindow is Taskbar)
{
abd.rc.top = top + Convert.ToInt32(Startup.MenuBarWindow.Height);
}
else
{
abd.rc.top = top;
}
abd.rc.bottom = abd.rc.top + sHeight;
}
else
{
abd.rc.bottom = bottom;
abd.rc.top = abd.rc.bottom - sHeight;
}
}
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_QUERYPOS, ref abd);
interopDone();
// system doesn't adjust all edges for us, do some adjustments
switch (abd.uEdge)
{
case (int)ABEdge.ABE_LEFT:
abd.rc.right = abd.rc.left + sWidth;
break;
case (int)ABEdge.ABE_RIGHT:
abd.rc.left = abd.rc.right - sWidth;
break;
case (int)ABEdge.ABE_TOP:
abd.rc.bottom = abd.rc.top + sHeight;
break;
case (int)ABEdge.ABE_BOTTOM:
abd.rc.top = abd.rc.bottom - sHeight;
break;
}
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETPOS, ref abd);
interopDone();
// tracing
bool isSameCoords = false;
if (!isCreate)
{
isSameCoords = abd.rc.top == (abWindow.Top * dpiScale) && abd.rc.left == (abWindow.Left * dpiScale) && abd.rc.bottom == (abWindow.Top * dpiScale) + sHeight && abd.rc.right == (abWindow.Left * dpiScale) + sWidth;
}
int h = abd.rc.bottom - abd.rc.top;
if (!isSameCoords)
{
CairoLogger.Instance.Debug(abWindow.Name + " AppBar height is " + h.ToString());
}
abWindow.Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle,
new ResizeDelegate(DoResize), abd.hWnd, abd.rc.left, abd.rc.top, abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top, isSameCoords);
if (h < sHeight)
{
ABSetPos(abWindow, screen, width, height, edge);
}
}
}
public static TaskbarLocation Detect()
{
var abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(abd);
Win32.NativeMethods.SHAppBarMessage(Win32.NativeMethods.ABM_GETTASKBARPOS, ref abd);
var taskbar = (Rectangle)abd.rc;
var p = new Point(
abd.rc.left + (abd.rc.right - abd.rc.left) / 2,
abd.rc.top + (abd.rc.bottom - abd.rc.top) / 2
);
var workArea = Screen.GetWorkingArea(p);
// Windows 7 reports the work area as including the taskbar, but we need
// it exclusing the taskbar. Correct.
if (workArea.Contains(p))
{
var pMon = new Point(
workArea.Left + workArea.Width / 2,
workArea.Top + workArea.Height / 2
);
// Whether the taskbar is horizontal or vertical.
if ((abd.rc.right - abd.rc.left) > (abd.rc.bottom - abd.rc.top))
{
// Whether the baskbar is at the top or the bottom.
if (p.Y < pMon.Y)
{
workArea = new Rectangle(
workArea.Left, abd.rc.bottom,
workArea.Width, workArea.Bottom - abd.rc.bottom
);
}
else
{
workArea = new Rectangle(
workArea.Left, workArea.Top,
workArea.Width, abd.rc.top
);
}
}
else
{
// Whether the taskbar is at the left or right.
if (p.X < pMon.X)
{
workArea = new Rectangle(
abd.rc.right, workArea.Top,
workArea.Right - abd.rc.right, workArea.Height
);
}
else
{
workArea = new Rectangle(
workArea.Left, abd.rc.left,
workArea.Top, workArea.Height
);
}
}
}
var pBar = new Point(
taskbar.Left + taskbar.Width / 2,
taskbar.Top + taskbar.Height / 2
);
TaskbarLocationEdge edge;
if (pBar.X > workArea.Right)
{
edge = TaskbarLocationEdge.Right;
}
else if (pBar.X < workArea.Left)
{
edge = TaskbarLocationEdge.Left;
}
else if (pBar.Y > workArea.Bottom)
{
edge = TaskbarLocationEdge.Bottom;
}
else if (pBar.Y < workArea.Top)
{
edge = TaskbarLocationEdge.Top;
}
else
{
edge = TaskbarLocationEdge.Bottom;
}
return(new TaskbarLocation(taskbar, workArea, edge));
}
internal static void ShowHideWindowsTaskbar(bool showWindowsTaskbar)
{
var appBarData = new NativeMethods.APPBARDATA(SystemAndProcessInformation.taskbarHandle);
var state = (NativeMethods.ABS) (uint) NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_GETSTATE, ref appBarData);
appBarData.lParam = (IntPtr) (showWindowsTaskbar ? state & ~NativeMethods.ABS.ABS_AUTOHIDE : state | NativeMethods.ABS.ABS_AUTOHIDE);
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETSTATE, ref appBarData);
var showHide = showWindowsTaskbar ? NativeMethods.SW.SW_SHOWNA : NativeMethods.SW.SW_HIDE;
NativeMethods.ShowWindow(SystemAndProcessInformation.taskbarHandle, showHide);
if (SystemAndProcessInformation.isAtLeastVista)
{
NativeMethods.ShowWindow(SystemAndProcessInformation.startButtonHandle, showHide);
}
isWindowsTaskbarShown = showWindowsTaskbar;
}
internal static IntPtr SHAppBarMessage(NativeMethods.ShellMessages dwMessage, ref NativeMethods.APPBARDATA pData)
{
Contract.Ensures(dwMessage != NativeMethods.ShellMessages.ABM_GETTASKBARPOS || Contract.Result <IntPtr>() != IntPtr.Zero);
var result = UnsafeNativeMethods.SHAppBarMessage(dwMessage, ref pData);
ThrowInvalidOperationException(dwMessage == NativeMethods.ShellMessages.ABM_GETTASKBARPOS && result == IntPtr.Zero);
return(result);
}
public bool SetPosition(Monitor monitor)
{
this.monitor = monitor;
var appBarData = new NativeMethods.APPBARDATA(this.Handle, uEdge: edge, rc: new NativeMethods.RECT { left = monitor.Bounds.Left, right = monitor.Bounds.Right });
if (edge == NativeMethods.ABE.ABE_TOP)
{
appBarData.rc.top = monitor.Bounds.Top;
appBarData.rc.bottom = appBarData.rc.top + this.height;
}
else
{
appBarData.rc.bottom = monitor.Bounds.Bottom;
appBarData.rc.top = appBarData.rc.bottom - this.height;
}
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_QUERYPOS, ref appBarData);
if (edge == NativeMethods.ABE.ABE_TOP)
{
appBarData.rc.bottom = appBarData.rc.top + this.height;
}
else
{
appBarData.rc.top = appBarData.rc.bottom - this.height;
}
NativeMethods.SHAppBarMessage(NativeMethods.ABM.ABM_SETPOS, ref appBarData);
var changedPosition = appBarData.rc.bottom != rect.bottom || appBarData.rc.top != rect.top ||
appBarData.rc.left != rect.left || appBarData.rc.right != rect.right;
this.rect = appBarData.rc;
this.visible = true;
return changedPosition;
}
public static void ABSetPos(AppBarWindow abWindow, Screen screen, double width, double height, ABEdge edge, bool isCreate = false)
{
lock (appBarLock)
{
NativeMethods.APPBARDATA abd = new NativeMethods.APPBARDATA();
abd.cbSize = Marshal.SizeOf(typeof(NativeMethods.APPBARDATA));
IntPtr handle = new WindowInteropHelper(abWindow).Handle;
abd.hWnd = handle;
abd.uEdge = (int)edge;
int sWidth = (int)width;
int sHeight = (int)height;
int top = 0;
int left = 0;
int right = WindowManager.PrimaryMonitorDeviceSize.Width;
int bottom = WindowManager.PrimaryMonitorDeviceSize.Height;
/*PresentationSource ps = PresentationSource.FromVisual(abWindow);
*
* if (ps == null)
* {
* // if we are racing with screen setting changes, this will be null
* CairoLogger.Instance.Debug("AppBarHelper: Aborting ABSetPos due to window destruction");
* return;
* }
*
* double dpiScale = ps.CompositionTarget.TransformToDevice.M11;*/
if (screen != null)
{
top = screen.Bounds.Y;
left = screen.Bounds.X;
right = screen.Bounds.Right;
bottom = screen.Bounds.Bottom;
}
if (abd.uEdge == (int)ABEdge.ABE_LEFT || abd.uEdge == (int)ABEdge.ABE_RIGHT)
{
abd.rc.top = top;
abd.rc.bottom = bottom;
if (abd.uEdge == (int)ABEdge.ABE_LEFT)
{
abd.rc.left = left;
abd.rc.right = abd.rc.left + sWidth;
}
else
{
abd.rc.right = right;
abd.rc.left = abd.rc.right - sWidth;
}
}
else
{
abd.rc.left = left;
abd.rc.right = right;
if (abd.uEdge == (int)ABEdge.ABE_TOP)
{
if (!abWindow.requiresScreenEdge)
{
abd.rc.top = top + Convert.ToInt32(GetAppBarEdgeWindowsHeight((ABEdge)abd.uEdge, screen));
}
else
{
abd.rc.top = top;
}
abd.rc.bottom = abd.rc.top + sHeight;
}
else
{
if (!abWindow.requiresScreenEdge)
{
abd.rc.bottom = bottom - Convert.ToInt32(GetAppBarEdgeWindowsHeight((ABEdge)abd.uEdge, screen));
}
else
{
abd.rc.bottom = bottom;
}
abd.rc.top = abd.rc.bottom - sHeight;
}
}
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_QUERYPOS, ref abd);
interopDone();
// system doesn't adjust all edges for us, do some adjustments
switch (abd.uEdge)
{
case (int)ABEdge.ABE_LEFT:
abd.rc.right = abd.rc.left + sWidth;
break;
case (int)ABEdge.ABE_RIGHT:
abd.rc.left = abd.rc.right - sWidth;
break;
case (int)ABEdge.ABE_TOP:
abd.rc.bottom = abd.rc.top + sHeight;
break;
case (int)ABEdge.ABE_BOTTOM:
abd.rc.top = abd.rc.bottom - sHeight;
break;
}
prepareForInterop();
NativeMethods.SHAppBarMessage((int)NativeMethods.ABMsg.ABM_SETPOS, ref abd);
interopDone();
// check if new coords
bool isSameCoords = false;
if (!isCreate)
{
isSameCoords = abd.rc.top == (abWindow.Top * abWindow.dpiScale) && abd.rc.left == (abWindow.Left * abWindow.dpiScale) && abd.rc.bottom == (abWindow.Top * abWindow.dpiScale) + sHeight && abd.rc.right == (abWindow.Left * abWindow.dpiScale) + sWidth;
}
if (!isSameCoords)
{
CairoLogger.Instance.Debug(string.Format("AppBarHelper: {0} changing position (TxLxBxR) to {1}x{2}x{3}x{4} from {5}x{6}x{7}x{8}", abWindow.Name, abd.rc.top, abd.rc.left, abd.rc.bottom, abd.rc.right, (abWindow.Top * abWindow.dpiScale), (abWindow.Left * abWindow.dpiScale), (abWindow.Top * abWindow.dpiScale) + sHeight, (abWindow.Left * abWindow.dpiScale) + sWidth));
abWindow.setAppBarPosition(abd.rc);
}
abWindow.afterAppBarPos(isSameCoords, abd.rc);
if (abd.rc.bottom - abd.rc.top < sHeight)
{
ABSetPos(abWindow, screen, width, height, edge);
}
}
}
