Fix cpp-check warnings and Windows build error

kstars/ekos/focus/focus.cpp

@@ -168,7 +168,7 @@ void Focus::checkCCD(int ccdNum)
             return;
     }
 
-    if (ccdNum >= 0 && ccdNum <= CCDs.count())
+    if (ccdNum >= 0 && ccdNum < CCDs.count())
     {
         currentCCD = CCDs.at(ccdNum);
 
@@ -1877,8 +1877,9 @@ void Focus::autoFocusLinear()
 
     if (!canAbsMove && !canRelMove && canTimerMove)
     {
-        const bool kFixPosition = true;
-        if (kFixPosition && (linearRequestedPosition != currentPosition))
+        //const bool kFixPosition = true;
+        if (linearRequestedPosition != currentPosition)
+            //if (kFixPosition && (linearRequestedPosition != currentPosition))
         {
             qCDebug(KSTARS_EKOS_FOCUS) << "Linear: warning, changing position " << currentPosition << " to "
                                        << linearRequestedPosition;
@@ -2117,7 +2118,7 @@ void Focus::autoFocusAbs()
 
             {
                 // HFR increased, let's deal with it.
-                HFRInc++;
+                //HFRInc++;
                 HFRDec = 0;
 
                 // Reality Check: If it's first time, let's capture again and see if it changes.
@@ -2360,7 +2361,7 @@ void Focus::autoFocusRel()
             }
             else
             {
-                HFRInc++;
+                //HFRInc++;
 
                 lastHFR = currentHFR;
 
@@ -3245,13 +3246,14 @@ void Focus::setMountStatus(ISD::Telescope::Status newState)
     }
 }
 
-void Focus::mountCoords(__attribute__ ((unused)) const QString &ra, 
-                        __attribute__ ((unused)) const QString &dec, 
-                        __attribute__ ((unused)) const QString &az,
-                        const QString &alt,
-                        __attribute__ ((unused)) int pierSide, 
-                        __attribute__ ((unused)) const QString &ha)
+void Focus::mountCoords(const QString &ra, const QString &dec, const QString &az, const QString &alt,
+                        int pierSide, const QString &ha)
 {
+    Q_UNUSED(ra);
+    Q_UNUSED(dec);
+    Q_UNUSED(az);
+    Q_UNUSED(pierSide);
+    Q_UNUSED(ha);
     mountAlt = dms(alt, true).Degrees();
 }
 
@@ -3269,7 +3271,6 @@ void Focus::removeDevice(ISD::GDInterface *deviceRemoved)
                 checkFocuser();
                 resetButtons();
             });
-
         }
     }