Let scroll wheel work when mouse-over on combobox + numeric up/down

Related to #7200

src/ui/Controls/NikseComboBox.cs

@@ -520,7 +520,7 @@ namespace Nikse.SubtitleEdit.Controls
 
             MouseWheel += (sender, e) =>
             {
-                if (_textBox == null || !(_textBox.Focused || base.Focused))
+                if (_textBox == null || _listViewShown)
                 {
                     return;
                 }

src/ui/Controls/NikseTimeUpDown.cs

@@ -7,6 +7,7 @@ using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Globalization;
 using System.Windows.Forms;
+using static System.Windows.Forms.VisualStyles.VisualStyleElement;
 
 namespace Nikse.SubtitleEdit.Controls
 {
@@ -316,6 +317,23 @@ namespace Nikse.SubtitleEdit.Controls
                 AddValue(0);
             };
 
+            MouseWheel += (sender, e) =>
+            {
+                if (_maskedTextBox == null)
+                {
+                    return;
+                }
+
+                if (e.Delta > 0)
+                {
+                    AddValue(-Increment);
+                }
+                else if (e.Delta < 0)
+                {
+                    AddValue(Increment);
+                }
+            };
+
             TabStop = false;
 
             _loading = false;

src/ui/Controls/NikseUpDown.cs

@@ -309,6 +309,24 @@ namespace Nikse.SubtitleEdit.Controls
             };
 
             LostFocus += (sender, args) => _repeatTimer.Stop();
+
+            MouseWheel += (sender, e) =>
+            {
+                if (_textBox == null)
+                {
+                    return;
+                }
+
+                if (e.Delta > 0)
+                {
+                    AddValue(-Increment);
+                }
+                else if (e.Delta < 0)
+                {
+                    AddValue(Increment);
+                }
+            };
+
             TabStop = false;
         }