Question

C#如何用From窗体做一个百叶窗效果的闪屏

最近有个项目，客户要求在关闭一些窗体时添加一些效果，像PPT上面的百叶窗效果那样，那位高手能给个例子~~~~~~~~~~~

Answer 1

#region private static class members
private static SplashScreen m_Instance = null;
private static object m_LockObject = new object();
#endregion

#region Interop definitions
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static public extern IntPtr GetDesktopWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public extern static IntPtr SetParent(IntPtr hChild, IntPtr hParent);
[DllImport("user32.dll", EntryPoint = "SetWindowPos", CallingConvention = CallingConvention.StdCall, SetLastError = true)]
public static extern int SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

private const int WS_EX_TOPMOST = unchecked((int)0x00000008L);
private const int WS_EX_TOOLWINDOW = unchecked((int)0x00000080);
private const uint SWP_NOSIZE = 0x0001;
private const uint SWP_NOMOVE = 0x0002;
private const int HWND_TOPMOST = -1;
#endregion