public bool SendToBackground(IntPtr handler, int displayIndex = 0)
{
if (handler == IntPtr.Zero || Shown)
{
return(false);
}
var ok = User32Wrapper.GetWindowRect(handler, out RECT react);
if (ok)
{
_originalRect = react;
}
Shown = true;
_targeHandler = handler;
if (_workerw == IntPtr.Zero)
{
_workerw = GetWorkerW();
}
_parentHandler = User32Wrapper.GetParent(_targeHandler);
if (_parentHandler == IntPtr.Zero)
{
_parentHandler = User32Wrapper.GetAncestor(_targeHandler, GetAncestorFlags.GetParent);
}
User32Wrapper.SetParent(_targeHandler, _workerw);
FullScreen(_targeHandler, displayIndex);
return(true);
}
internal void ShowWallpaper(IntPtr wallpaperHandle)
{
IntPtr hostForm = IntPtr.Zero;
WallpaperApi.UIInvoke(() =>
{
try
{
Controls.Clear();
Opacity = 1;
hostForm = Handle;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine($"ShowWallpaper ex:{ex}");
}
});
//hostfrom下潜桌面
WallpaperHelper.GetInstance(_screenName).SendToBackground(hostForm);
//壁纸parent改为hostform
User32Wrapper.SetParent(wallpaperHandle, hostForm);
//把壁纸全屏铺满 hostform
WallpaperHelper.FullScreen(wallpaperHandle, hostForm);
}
public void RestoreParent(bool refreshWallpaper = true)
{
if (!Shown)
{
return;
}
if (refreshWallpaper)
{
_desktopWallpaperAPI = RefreshWallpaper(_desktopWallpaperAPI);
}
if (_workerw == IntPtr.Zero)
{
_workerw = GetWorkerW();
}
User32Wrapper.SetParent(_currentHandler, _parentHandler);
if (_originalRect != null)
{
User32WrapperEx.SetWindowPosEx(_currentHandler, _originalRect.Value);
}
Shown = false;
}
public void RestoreParent()
{
if (_parentHandler != null)
{
User32Wrapper.SetParent(_currentHandler, _parentHandler.Value);
}
_parentHandler = null;
}
public bool SendToBackground(IntPtr handler)
{
//处理alt+tab可以看见本程序
//https://stackoverflow.com/questions/357076/best-way-to-hide-a-window-from-the-alt-tab-program-switcher
int exStyle = User32Wrapper.GetWindowLong(handler, WindowLongFlags.GWL_EXSTYLE);
exStyle |= (int)WindowStyles.WS_EX_TOOLWINDOW;
User32Wrapper.SetWindowLong(handler, WindowLongFlags.GWL_EXSTYLE, exStyle);
if (handler != _currentHandler)
{
//已经换了窗口，恢复上一个窗口
RestoreParent();
}
if (handler == IntPtr.Zero)
{
return(false);
}
_ = User32Wrapper.GetWindowRect(handler, out _);
//var ok = User32Wrapper.GetWindowRect(handler, out RECT react);
//if (ok)
// _originalRect = react;
_currentHandler = handler;
var workerw = GetWorkerW();
if (workerw == IntPtr.Zero)
{
//有时候突然又不行了，在来一次
User32Wrapper.SystemParametersInfo(User32Wrapper.SPI_SETCLIENTAREAANIMATION, 0, true, User32Wrapper.SPIF_UPDATEINIFILE | User32Wrapper.SPIF_SENDWININICHANGE);
workerw = GetWorkerW();
}
if (workerw == IntPtr.Zero)
{
return(false);
}
_parentHandler = User32Wrapper.GetParent(_currentHandler);
//if (newParentHandler != _parentHandler)
//{
// //parent没变时不重复调用，有时候会导致不可见
User32Wrapper.SetParent(_currentHandler, workerw);
FullScreen(_currentHandler, _targetBounds, workerw);
//_parentHandler = newParentHandler;
//}
//if (_parentHandler == IntPtr.Zero)
// _parentHandler = User32Wrapper.GetAncestor(_currentHandler, GetAncestorFlags.GetParent);
return(true);
}
public void RestoreParent()
{
if (_parentHandler != null)
{
User32Wrapper.SetParent(_currentHandler, _parentHandler.Value);
}
_parentHandler = null;
////恢复原始大小
//if (_originalRect != null)
// User32WrapperEx.SetWindowPosEx(_currentHandler, _originalRect.Value);
}
public void RestoreParent()
{
if (_workerw == IntPtr.Zero)
{
_workerw = GetWorkerW();
}
User32Wrapper.SetParent(_currentHandler, _parentHandler);
//恢复原始大小
if (_originalRect != null)
{
User32WrapperEx.SetWindowPosEx(_currentHandler, _originalRect.Value);
}
}
/// <summary>
/// 恢复WorkerW中的所有句柄到桌面
/// </summary>
public static void RestoreAllHandles()
{
var desktop = User32Wrapper.GetDesktopWindow();
var workw = GetWorkerW();
var enumWindowResult = User32Wrapper.EnumChildWindows(workw, new EnumWindowsProc((tophandle, topparamhandle) =>
{
var txt = User32Wrapper.GetWindowText(tophandle);
if (!string.IsNullOrEmpty(txt))
{
User32Wrapper.SetParent(tophandle, desktop);
}
return(true);
}), IntPtr.Zero);
RefreshWallpaper(null);
}
public bool SendToBackground(IntPtr handler)
{
if (handler != _currentHandler)
{
//已经换了窗口，恢复上一个窗口
RestoreParent();
}
if (handler == IntPtr.Zero)
{
return(false);
}
var ok = User32Wrapper.GetWindowRect(handler, out RECT react);
if (ok)
{
_originalRect = react;
}
_currentHandler = handler;
var workerw = GetWorkerW();
if (workerw == IntPtr.Zero)
{
//有时候突然又不行了，在来一次
User32Wrapper.SystemParametersInfo(User32Wrapper.SPI_SETCLIENTAREAANIMATION, 0, true, User32Wrapper.SPIF_UPDATEINIFILE | User32Wrapper.SPIF_SENDWININICHANGE);
workerw = GetWorkerW();
}
if (workerw == IntPtr.Zero)
{
return(false);
}
_parentHandler = User32Wrapper.GetParent(_currentHandler);
FullScreen(_currentHandler, _targetBounds);
User32Wrapper.SetParent(_currentHandler, workerw);
//if (_parentHandler == IntPtr.Zero)
// _parentHandler = User32Wrapper.GetAncestor(_currentHandler, GetAncestorFlags.GetParent);
return(true);
}
public bool SendToBackground(IntPtr handler)
{
if (Shown && handler != _currentHandler)
{
//已经换了窗口，恢复上一个窗口
RestoreParent(false);
}
if (handler == IntPtr.Zero || Shown)
{
return(false);
}
var ok = User32Wrapper.GetWindowRect(handler, out RECT react);
if (ok)
{
_originalRect = react;
}
Shown = true;
_currentHandler = handler;
if (_workerw == IntPtr.Zero)
{
_workerw = GetWorkerW();
if (_workerw == IntPtr.Zero)
{
return(false);
}
}
_parentHandler = User32Wrapper.GetParent(_currentHandler);
if (_parentHandler == IntPtr.Zero)
{
_parentHandler = User32Wrapper.GetAncestor(_currentHandler, GetAncestorFlags.GetParent);
}
User32Wrapper.SetParent(_currentHandler, _workerw);
FullScreen(_currentHandler, DisplayScreen);
return(true);
}
public static void Show(IntPtr handler)
{
_handler = handler;
if (_handler == IntPtr.Zero || _showed)
{
return;
}
if (!_initlized)
{
bool isOk = Initlize();
if (!isOk)
{
return;
}
}
_showed = true;
User32Wrapper.SetParent(_handler, _workerw);
DesktopWallpaperAPI.Enable(false);
}
public static void Close(bool restoreParent = false)
{
if (!_showed)
{
return;
}
_showed = false;
if (!_initlized)
{
Initlize();
}
if (restoreParent)
{
var desktop = User32Wrapper.GetDesktopWindow();
User32Wrapper.SetParent(_handler, desktop);
}
DesktopWallpaperAPI.Enable(true);
}
