如何检索窗口的最小化，最大化和closuresbutton的大小？

到目前为止，我尝试使用GetThemePartSize，GetThemeMetric，GetSystemMetrics，WM_GETTITLEBARINFOEX通过SendMessage和几个其他调用，但没有什么甚至接近真正的维度（启用主题的Windows 7）。

基本上我的问题是：如何获得这些button的大小（和位置，理想情况下，甚至处理），GetThemePartSize检索到的值甚至意味着什么？ 他们有什么好处？

我已经看了这个答案和其他许多人，但他们根本不工作。

谢谢

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更新

汉斯：

[DllImport("uxtheme", ExactSpelling=true)] private extern static Int32 GetThemePartSize(IntPtr hTheme, IntPtr hdc, WindowPart part, WindowPartState state, ref RECT pRect, ThemeSize eSize, out SIZE size); [StructLayout(LayoutKind.Sequential)] private struct RECT { public int left; public int top; public int right; public int bottom; } [StructLayout(LayoutKind.Sequential)] private struct SIZE { public int cx; public int cy; } private const int TS_TRUE = 1; private const int CBS_NORMAL = 1; private const int WP_CLOSEBUTTON = 18; private const string VSCLASS_WINDOW = "WINDOW"; /* inside a method */ var rect = new RECT {left = 0, right = 200, top = 0, bottom = 200}; var size = new SIZE(); var windowHandle = new WindowInteropHelper({MyWindow}).Handle; var theme = OpenThemeData(windowHandle, VSCLASS_WINDOW); GetThemePartSize(theme, null, WP_CLOSEBUTTON, CBS_NORMAL, ref rect, TS_TRUE, ref size); // result on w7 with default theme -> size.cx == 28, size.cy == 17 

 private const int DWMWA_CAPTION_BUTTON_BOUNDS = 5; [StructLayout(LayoutKind.Sequential)] public struct RECT { public int left; public int top; public int right; public int bottom; } [DllImport("dwmapi.dll")] public static extern int DwmGetWindowAttribute(IntPtr hwnd, int dwAttribute, out RECT pvAttribute, int cbAttribute); var windowHandle = new WindowInteropHelper(Main.Instance).Handle; var buttonsRect = new RECT(); var sizeButtonsRect = Marshal.SizeOf(buttonsRect); DwmGetWindowAttribute(windowHandle, DWMWA_CAPTION_BUTTON_BOUNDS, out buttonsRect, sizeButtonsRect);