Fix the regression: absence of toolbar tooltip

This regression is du to 733c7e73de

Fix #10355, close #10359

PowerEditor/src/Notepad_plus.cpp

@@ -3795,10 +3795,8 @@ void Notepad_plus::dropFiles(HDROP hdrop)
 	{
 		// Determinate in which view the file(s) is (are) dropped
 		POINT p;
-		::GetCursorPos(&p);
-		HWND hWnd = WindowFromPoint(p);
-		::MapWindowPoints(NULL, hWnd, &p, 1);
-		HWND hWin = ::RealChildWindowFromPoint(hWnd, p);
+		::DragQueryPoint(hdrop, &p);
+		HWND hWin = ::ChildWindowFromPointEx(_pPublicInterface->getHSelf(), p, CWP_SKIPINVISIBLE);
 		if (!hWin) return;
 
 		if ((_subEditView.getHSelf() == hWin) || (_subDocTab.getHSelf() == hWin))

PowerEditor/src/NppNotification.cpp

@@ -907,9 +907,8 @@ BOOL Notepad_plus::notify(SCNotification *notification)
 
 				POINT p;
 				::GetCursorPos(&p);
-				HWND hWnd = WindowFromPoint(p);
-				::MapWindowPoints(NULL, hWnd, &p, 1);
-				HWND hWin = ::RealChildWindowFromPoint(hWnd, p);
+				::MapWindowPoints(NULL, _pPublicInterface->getHSelf(), &p, 1);
+				HWND hWin = ::ChildWindowFromPointEx(_pPublicInterface->getHSelf(), p, CWP_SKIPINVISIBLE);
 				const int tipMaxLen = 1024;
 				static TCHAR docTip[tipMaxLen];
 				docTip[0] = '\0';