如何将WPF窗口置于Excel VSTO插件中心

Question

问题是WPF窗口只接受system.form.window,所以我不能将Excel设置为我的VSTO应用程序中的所有者对象,因为VSTO插件只将Excel的hwnd或其活动窗口暴露为本机窗口,因为它是COM.这意味着当WindowStartUpLoadation设置为中心所有者时,它不起作用.所以我被迫解决这个问题.

到目前为止,我在阅读本网站后想出的是尝试手动居中窗口,但即使用他的简单示例,我的窗口也不会出现居中.

 private static void CenterWpfWindowInExcel(WpfParameterDialog wpfDialog)
    {
        WindowInteropHelper helper = new WindowInteropHelper(wpfDialog);
        helper.Owner = new IntPtr(Globals.ExcelAddin.Application.Hwnd);


        // Manually calculate Top/Left to appear centered
        double nonWpfOwnerLeft = Globals.ExcelAddin.Application.ActiveWindow.Left; // Get non-WPF owner’s Left
        double nonWpfOwnerWidth = Globals.ExcelAddin.Application.ActiveWindow.Width; // Get non-WPF owner’s Width
        double nonWpfOwnerTop = Globals.ExcelAddin.Application.ActiveWindow.Top; // Get non-WPF owner’s Top
        double nonWpfOwnerHeight = Globals.ExcelAddin.Application.ActiveWindow.Height; // Get non-WPF owner’s Height
        wpfDialog.WindowStartupLocation = WindowStartupLocation.Manual;
        wpfDialog.Left = nonWpfOwnerLeft + (nonWpfOwnerWidth - wpfDialog.Width)/2;
        wpfDialog.Top = nonWpfOwnerTop + (nonWpfOwnerHeight - wpfDialog.Height)/2;
    }

有任何想法吗？

Answer 1

我能够通过使用user23获取主Excel窗口的Rect来解决这个问题

 [DllImport("user32.dll", SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);
    [StructLayout(LayoutKind.Sequential)]
    private struct RECT
    {
        public int Left;
        public int Top;
        public int Right;
        public int Bottom;
    }

似乎Globals.ExcelAddin.Application.ActiveWindow没有给我回到我期望的维度.我认为它给了我Ribbon Addin的尺寸,而不是Excel的主窗口.