public static bool Show(IRender render, Screen screen)
{
var handle = render.ShowRender();
var core = GetCore(screen);
if (core == null)
{
return(false);
}
Close(core.Render);//清理旧Render
render.SetCore(core);
core.Render = render;
//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(handle, WindowLongFlags.GWL_EXSTYLE);
exStyle |= (int)WindowStyles.WS_EX_TOOLWINDOW;
User32Wrapper.SetWindowLong(handle, WindowLongFlags.GWL_EXSTYLE, exStyle);
bool ok = core.SendToBackground(handle);
return(ok);
}
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 static void FullScreen(IntPtr targeHandler, RECT rect, IntPtr parent)
{
User32Wrapper.MapWindowPoints(IntPtr.Zero, parent, ref rect, 2);
_ = User32WrapperEx.SetWindowPosEx(targeHandler, rect);
var style = User32Wrapper.GetWindowLong(targeHandler, WindowLongFlags.GWL_STYLE);
//https://stackoverflow.com/questions/2398746/removing-window-border
//消除游戏边框
style &= ~(int)(WindowStyles.WS_EX_TOOLWINDOW | WindowStyles.WS_CAPTION | WindowStyles.WS_THICKFRAME | WindowStyles.WS_MINIMIZEBOX | WindowStyles.WS_MAXIMIZEBOX | WindowStyles.WS_SYSMENU);
User32Wrapper.SetWindowLong(targeHandler, WindowLongFlags.GWL_STYLE, style);
}