Implemented non-selection of content when setting focus via the keyboard.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68749 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/window.cpp

@@ -3100,6 +3100,13 @@ wxWindowMSW::MSWHandleMessage(WXLRESULT *result,
 
                 processed = true;
             }
+            else if (IsOfStandardClass() && IsKindOf(CLASSINFO(wxTextCtrl)) && ((wxTextCtrl*)this)->IsMultiLine())
+            {
+                rc.result = MSWDefWindowProc(message, wParam, lParam);
+                // Clear the DLGC_HASSETSEL bit from the return value
+                rc.result &= ~DLGC_HASSETSEL;
+                processed = true;
+            }
             //else: get the dlg code from the DefWindowProc()
             break;