add Screenshot

src/Shared/HandyControl_Shared/Tools/Interop/InteropMethods.cs

@@ -239,11 +239,6 @@ namespace HandyControl.Tools.Interop
             IntPtr hInstance,
             IntPtr lpParam);
 
-        [SecurityCritical]
-        [SuppressUnmanagedCodeSecurity]
-        [DllImport(InteropValues.ExternDll.User32, CharSet = CharSet.Unicode, SetLastError = true, BestFitMapping = false)]
-        internal static extern short RegisterClass(InteropValues.WNDCLASS wc);
-
         [SecurityCritical]
         [SuppressUnmanagedCodeSecurity]
         [DllImport(InteropValues.ExternDll.User32, CharSet = CharSet.Unicode, SetLastError = true, BestFitMapping = false)]
@@ -438,5 +433,18 @@ namespace HandyControl.Tools.Interop
         internal static extern bool AlphaBlend(IntPtr hdcDest, int xoriginDest, int yoriginDest, int wDest, int hDest, IntPtr hdcSrc, int xoriginSrc, int yoriginSrc, int wSrc, int hSrc, InteropValues.BLENDFUNCTION pfn);
         
         internal static int GET_SC_WPARAM(IntPtr wParam) => (int)wParam & 65520;
+
+        [DllImport(InteropValues.ExternDll.User32)]
+        internal static extern IntPtr ChildWindowFromPointEx(IntPtr hwndParent, InteropValues.POINT pt, int uFlags);
+
+        [DllImport(InteropValues.ExternDll.Gdi32)]
+        internal static extern IntPtr CreateCompatibleBitmap(IntPtr hDC, int width, int height);
+
+        [DllImport(InteropValues.ExternDll.Gdi32)]
+        internal static extern bool BitBlt(IntPtr hDC, int x, int y, int nWidth, int nHeight, IntPtr hSrcDC, int xSrc, int ySrc, int dwRop);
+
+        [DllImport(InteropValues.ExternDll.User32)]
+        [ResourceExposure(ResourceScope.None)]
+        internal static extern bool EnableWindow(IntPtr hWnd, bool enable);
     }
 }