comctl32: trackbar: Return the correct number of tics for TBM_GETNUMTICS.

dlls/comctl32/tests/trackbar.c

@@ -775,12 +775,10 @@ static void test_tic_settings(HWND hWndTrackbar){
     SendMessage(hWndTrackbar, TBM_SETRANGE, TRUE, MAKELONG(0, 10));
     SendMessage(hWndTrackbar, TBM_SETTICFREQ, 2, 0);
     r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0);
-    todo_wine{
-        expect(6, r);
-        SendMessage(hWndTrackbar, TBM_SETTICFREQ, 5, 0);
-        r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0);
-        expect(3, r);
-    }
+    expect(6, r);
+    SendMessage(hWndTrackbar, TBM_SETTICFREQ, 5, 0);
+    r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0);
+    expect(3, r);
     SendMessage(hWndTrackbar, TBM_SETTICFREQ, 15, 0);
     r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0);
     expect(2, r);

dlls/comctl32/trackbar.c

@@ -1042,7 +1042,10 @@ TRACKBAR_GetNumTics (TRACKBAR_INFO *infoPtr)
     if (GetWindowLongW (infoPtr->hwndSelf, GWL_STYLE) & TBS_NOTICKS)
         return 0;
 
-    return infoPtr->uNumTics + 2;
+    if(infoPtr->uNumTics == 0)
+        return 2;
+    else
+        return infoPtr->uNumTics + 1;
 }