diff --git a/dlls/comctl32/tests/trackbar.c b/dlls/comctl32/tests/trackbar.c index d790206f479..22fbbfe40a2 100644 --- a/dlls/comctl32/tests/trackbar.c +++ b/dlls/comctl32/tests/trackbar.c @@ -785,22 +785,41 @@ static void test_tic_settings(HWND hWndTrackbar){ /* test TBM_SETTICFREQ */ SendMessage(hWndTrackbar, TBM_SETRANGE, TRUE, MAKELONG(0, 10)); SendMessage(hWndTrackbar, TBM_SETTICFREQ, 2, 0); - r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); expect(6, r); SendMessage(hWndTrackbar, TBM_SETTICFREQ, 5, 0); - r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); expect(3, r); SendMessage(hWndTrackbar, TBM_SETTICFREQ, 15, 0); - r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); expect(2, r); /* test TBM_GETNUMTICS */ /* since TIC FREQ is 15, there should be only 2 tics now */ - r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0,0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); expect(2, r); ok_sequence(sequences, TRACKBAR_SEQ_INDEX, tic_settings_test_seq, "tic settings test sequence", TRUE); ok_sequence(sequences, PARENT_SEQ_INDEX, parent_tic_settings_test_seq, "parent tic settings test sequence", TRUE); + + /* range [0,0], freq = 1 */ + SendMessage(hWndTrackbar, TBM_SETRANGEMAX, TRUE, 0); + SendMessage(hWndTrackbar, TBM_SETRANGEMIN, TRUE, 0); + SendMessage(hWndTrackbar, TBM_SETTICFREQ, 1, 0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); + expect(2, r); + /* range [0,1], freq = 1 */ + SendMessage(hWndTrackbar, TBM_SETRANGEMAX, TRUE, 1); + SendMessage(hWndTrackbar, TBM_SETRANGEMIN, TRUE, 0); + SendMessage(hWndTrackbar, TBM_SETTICFREQ, 1, 0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); + expect(2, r); + /* range [0,2], freq = 1 */ + SendMessage(hWndTrackbar, TBM_SETRANGEMAX, TRUE, 2); + SendMessage(hWndTrackbar, TBM_SETRANGEMIN, TRUE, 0); + SendMessage(hWndTrackbar, TBM_SETTICFREQ, 1, 0); + r = SendMessage(hWndTrackbar, TBM_GETNUMTICS, 0, 0); + expect(3, r); } static void test_tic_placement(HWND hWndTrackbar){ diff --git a/dlls/comctl32/trackbar.c b/dlls/comctl32/trackbar.c index 88f1df10b0a..5abc77fb8a4 100644 --- a/dlls/comctl32/trackbar.c +++ b/dlls/comctl32/trackbar.c @@ -155,7 +155,7 @@ static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr) if (infoPtr->uTicFreq && infoPtr->lRangeMax >= infoPtr->lRangeMin) { nrTics=(infoPtr->lRangeMax - infoPtr->lRangeMin)/infoPtr->uTicFreq; /* don't add extra tic if there's no remainder */ - if ((infoPtr->lRangeMax - infoPtr->lRangeMin) % infoPtr->uTicFreq == 0) + if (nrTics && ((infoPtr->lRangeMax - infoPtr->lRangeMin) % infoPtr->uTicFreq == 0)) nrTics--; } else {