/// <summary>
/// 设置窗口透明度
/// </summary>
/// <param name="hWnd">窗口句柄</param>
/// <param name="alpha">透明度</param>
public static void SetWindowAlpha(IntPtr hWnd, byte alpha)
{
//在调用SetLayeredWindowAttributes 之前,需要给窗口加上WS_EX_LAYERED属性,否则会无效
var wndExStyle = Win32Funcs.GetWindowLongWrapper(hWnd, Win32Consts.GWL_EXSTYLE);
wndExStyle |= Win32Consts.WS_EX_LAYERED;
Win32Funcs.SetWindowLongWrapper(hWnd, Win32Consts.GWL_EXSTYLE, wndExStyle);
//设置透明度
Win32Funcs.SetLayeredWindowAttributesWrapper(hWnd, 0, alpha, Win32Consts.LWA_ALPHA);
}
/// <summary>
/// 将窗口置顶
/// </summary>
/// <param name="hWnd">窗口句柄</param>
public static void SetWindowTopMost(IntPtr hWnd)
{
//SWP_NOSIZE：维持当前尺寸（忽略cx和cy参数）
//SWP_NOMOVE：维持当前位置（忽略X和Y参数）
const uint flags = Win32Consts.SWP_NOSIZE | Win32Consts.SWP_NOMOVE;
Win32Funcs.SetWindowPosWrapper(hWnd, Win32Consts.HWND_TOPMOST_PTR, 0, 0, 0, 0, flags);
Win32Funcs.SendMessageWrapper(hWnd, Win32Consts.WM_SETFOCUS, IntPtr.Zero, IntPtr.Zero);
Win32Funcs.SetForegroundWindowWrapper(hWnd);
}
/// <summary>
/// 将窗口移出屏幕可见区域
/// </summary>
/// <param name="hWnd">窗口句柄</param>
public static void SetWindowOutOfScreen(IntPtr hWnd)
{
//0, 1040, 147, 858
Win32Types.Rect winRect;
Win32Funcs.GetWindowRectWrapper(hWnd, out winRect);
//0, 1024, 0, 672,ClientToScreen之后坐标为8,178
Win32Types.Rect clientRect;
Win32Funcs.GetClientRectWrapper(hWnd, out clientRect);
var offset = winRect.Width - clientRect.Width;
var x = -winRect.Width + offset + 1;
var y = winRect.Top;
const uint flags = Win32Consts.SWP_NOZORDER;
Win32Funcs.SetWindowPosWrapper(hWnd, IntPtr.Zero, x, y, winRect.Width, winRect.Height, flags);
}
public static void ShowTaskBar(bool show)
{
var cmd = show ? Win32Consts.SW_RESTORE : Win32Consts.SW_HIDE;
//系统任务栏
var handle = Win32Funcs.FindWindowWrapper("Shell_TrayWnd", null);
if (!IntPtr.Zero.Equals(handle))
{
Win32Funcs.ShowWindowWrapper(handle, cmd);
}
//开始菜单栏按钮
handle = Win32Funcs.FindWindowWrapper("Button", null);
if (!IntPtr.Zero.Equals(handle))
{
Win32Funcs.ShowWindowWrapper(handle, cmd);
}
}
public static IntPtr GetProcessWnd(uint pid)
{
var ptrWnd = IntPtr.Zero;
var ret = Win32Funcs.EnumWindowsWrapper((hWnd, lParam) =>
{
if (IntPtr.Zero.Equals(Win32Funcs.GetParentWrapper(hWnd)))
{
int id;
Win32Funcs.GetWindowThreadProcessIdWrapper(hWnd, out id);
if (new IntPtr(id).Equals(lParam))
{
ptrWnd = hWnd;
Win32Funcs.SetLastErrorWrapper(0);
return(false);
}
}
return(true);
}, new IntPtr(pid));
return((!ret && Marshal.GetLastWin32Error() == 0) ? ptrWnd : IntPtr.Zero);
}
/// <summary>
/// 将窗口置底
/// </summary>
/// <param name="windowName">窗口名称</param>
public static bool SetWindowBottom(string windowName)
{
var hWnd = Win32Funcs.FindWindowWrapper(null, windowName);
return(!hWnd.Equals(IntPtr.Zero) && SetWindowBottom(hWnd));
}
public static void RestoreWindow(IntPtr hWnd)
{
Win32Funcs.SendMessageWrapper(hWnd, Win32Consts.WM_SYSCOMMAND,
new IntPtr(Win32Consts.SC_RESTORE), IntPtr.Zero); //还原
}
public static void MaximizeWindow(IntPtr hWnd)
{
Win32Funcs.SendMessageWrapper(hWnd, Win32Consts.WM_SYSCOMMAND,
new IntPtr(Win32Consts.SC_MAXIMIZE), IntPtr.Zero); //最大化
}
/// <summary>
/// 休眠
/// </summary>
public static void SetComputerHibernate()
{
Win32Funcs.SetSuspendStateWrapper(true, true, true);
}
/// <summary>
/// 睡眠
/// </summary>
public static void SetComputerSleep()
{
Win32Funcs.SetSuspendStateWrapper(false, true, true);
}
/// <summary>
/// 锁定
/// </summary>
public static void SetComputerLock()
{
Win32Funcs.LockWorkStationWrapper();
}
/// <summary>
/// 注销
/// </summary>
public static void SetComputerLogout()
{
Win32Funcs.ExitWindowsExWrapper(0, 0);
}
