comctl32: Correct monthcal WM_LBUTTONDOWN return values.

dlls/comctl32/monthcal.c

@@ -1415,14 +1415,14 @@ MONTHCAL_LButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
     infoPtr->status = MC_NEXTPRESSED;
     SetTimer(infoPtr->hwndSelf, MC_NEXTMONTHTIMER, MC_NEXTMONTHDELAY, 0);
     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
-    return TRUE;
+    return 0;
   }
   if(hit == MCHT_TITLEBTNPREV){
     MONTHCAL_GoToPrevMonth(infoPtr);
     infoPtr->status = MC_PREVPRESSED;
     SetTimer(infoPtr->hwndSelf, MC_PREVMONTHTIMER, MC_NEXTMONTHDELAY, 0);
     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
-    return TRUE;
+    return 0;
   }
 
   if(hit == MCHT_TITLEMONTH) {
@@ -1471,7 +1471,7 @@ MONTHCAL_LButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
     SendMessageW( infoPtr->hWndYearUpDown, UDM_SETRANGE, (WPARAM) 0, MAKELONG (9999, 1753));
     SendMessageW( infoPtr->hWndYearUpDown, UDM_SETBUDDY, (WPARAM) infoPtr->hWndYearEdit, (LPARAM)0 );
     SendMessageW( infoPtr->hWndYearUpDown, UDM_SETPOS,   (WPARAM) 0,(LPARAM)infoPtr->currentYear );
-    return TRUE;
+    return 0;
 
   }
   if(hit == MCHT_TODAYLINK) {
@@ -1482,7 +1482,7 @@ MONTHCAL_LButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
     MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->minSel);
     MONTHCAL_CopyTime(&infoPtr->todaysDate, &infoPtr->maxSel);
     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
-    return TRUE;
+    return 0;
   }
   if(hit == MCHT_CALENDARDATE) {
     SYSTEMTIME selArray[2];
@@ -1515,10 +1515,10 @@ MONTHCAL_LButtonDown(MONTHCAL_INFO *infoPtr, LPARAM lParam)
     infoPtr->firstSelDay = ht.st.wDay;
     infoPtr->curSelDay = ht.st.wDay;
     infoPtr->status = MC_SEL_LBUTDOWN;
-    return TRUE;
+    return 0;
   }
 
-  return 0;
+  return 1;
 }