/// <summary>
/// 设置窗口无边框
/// </summary>
/// <param name="hWnd">窗口句柄</param>
public static void SetWindowNoBorder(IntPtr hWnd)
{
var wndStyle = (long)Win32Funcs.GetWindowLongWrapper(hWnd, Win32Consts.GWL_STYLE);
wndStyle &= ~Win32Consts.WS_CAPTION;
wndStyle &= ~Win32Consts.WS_THICKFRAME;
//WS_BORDER,WS_DLGFRAME;
Win32Funcs.SetWindowLongWrapper(hWnd, Win32Consts.GWL_STYLE, (int)wndStyle);
}
/// <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);
}