worky 2

Controls/BetterFolderBrowser.cs

@@ -20,7 +20,6 @@
  * Improvements are always welcome :)
  * 
  * modified by murrty
- * 
  */
 
 

Controls/ExtendedLinkLabel.cs

@@ -1,4 +1,6 @@
-namespace murrty.controls;
+/* ExtendedLinkLabel by murrty */
+
+namespace murrty.controls;
 
 using System;
 using System.ComponentModel;

Controls/ExtendedProgressBar.cs

@@ -1,5 +1,8 @@
-namespace murrty.controls;
-// Derived from wyDay's progress bar.
+/* ExtendedProgressBar by murrty
+ Derived from wyDay's progress bar with heavy modifications.
+*/
+
+namespace murrty.controls;
 
 using System.ComponentModel;
 using System.ComponentModel.Design;

Controls/ExtendedRichTextBox.cs

@@ -1,10 +1,13 @@
-namespace murrty.controls;
+/* ExtendedRichTextBox by murrty */
+
+namespace murrty.controls;
 
 using System.ComponentModel;
+using System.Runtime.InteropServices;
 using System.Windows.Forms;
 using murrty.controls.natives;
 
-class ExtendedRichTextBox : RichTextBox {
+public class ExtendedRichTextBox : RichTextBox {
     private bool fAutoWordSelection = false;
 
     [Category("Behavior")]
@@ -29,20 +32,85 @@ public bool ViewOnly {
         get; set;
     } = false;
 
+    [DefaultValue(false)]
+    public new bool HideSelection {
+        get => base.HideSelection;
+        set => base.HideSelection = value;
+    }
+
+    public ExtendedRichTextBox() {
+        base.HideSelection = false;
+    }
+
     private const int WM_SETFOCUS = 0x07;
     private const int WM_ENABLE = 0x0A;
     private const int WM_SETCURSOR = 0x20;
 
+    private const int WM_USER = 0x400;
+    private const int WM_SETREDRAW = 0x000B;
+    private const int EM_GETEVENTMASK = WM_USER + 59;
+    private const int EM_SETEVENTMASK = WM_USER + 69;
+    private const int EM_GETSCROLLPOS = WM_USER + 221;
+    private const int EM_SETSCROLLPOS = WM_USER + 222;
+
+    private System.Drawing.Point _ScrollPoint;
+    private bool _Painting = true;
+    private nint _EventMask;
+    private int _SuspendIndex = 0;
+    private int _SuspendLength = 0;
+    private SCROLLINFO ScrollPos;
+
+    [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)]
+    private static extern bool GetScrollInfo(IntPtr hwnd, SBOrientation fnBar, ref SCROLLINFO lpsi);
+
     /// <summary>
     /// Appends text to the rich text box, scrolling to the bottom when necessary.
     /// </summary>
     /// <param name="text">Text to append.</param>
-    public new void AppendText(string text) {
-        try {
-            this.Text += text;
-            NativeMethods.SendMessage(this.Handle, 0x115, 7, 0);
+    public void AppendAndTryScroll(string text) {
+        ScrollPos = new SCROLLINFO() {
+            cbSize = Marshal.SizeOf<SCROLLINFO>(),
+            fMask = ScrollInfoMask.SIF_ALL
+        };
+        if (GetScrollInfo(this.Handle, SBOrientation.SB_VERT, ref ScrollPos) && ScrollPos.ScrolledToBottom) {
+            AppendText(text);
+        }
+        else {
+            SuspendPaint();
+            AppendText(text);
+            ResumePaint();
+        }
+    }
+
+    public void AppendAndTryScrollNewLine(string text) => AppendAndTryScroll("\r\n" + text);
+
+    public void ScrollToBottom() => ScrollToBottom(true);
+
+    public void ScrollToBottom(bool UpdateSelection) {
+        NativeMethods.SendMessage(this.Handle, 0x115, 7, 0);
+        if (UpdateSelection)
+            SelectionStart = Text.Length;
+    }
+
+    private void SuspendPaint() {
+        if (_Painting) {
+            _SuspendIndex = this.SelectionStart;
+            _SuspendLength = this.SelectionLength;
+            NativeMethods.SendMessage(this.Handle, EM_GETSCROLLPOS, 0, ref _ScrollPoint);
+            NativeMethods.SendMessage(this.Handle, WM_SETREDRAW, 0, 0);
+            _EventMask = NativeMethods.SendMessage(this.Handle, EM_GETEVENTMASK, 0, 0);
+            _Painting = false;
+        }
+    }
+    private void ResumePaint() {
+        if (!_Painting) {
+            this.Select(_SuspendIndex, _SuspendLength);
+            NativeMethods.SendMessage(this.Handle, EM_SETSCROLLPOS, 0, ref _ScrollPoint);
+            NativeMethods.SendMessage(this.Handle, EM_SETEVENTMASK, 0, _EventMask);
+            NativeMethods.SendMessage(this.Handle, WM_SETREDRAW, 1, IntPtr.Zero);
+            _Painting = true;
+            this.Invalidate();
         }
-        catch { }
     }
 
     protected override void OnMouseDown(MouseEventArgs e) {
@@ -53,6 +121,7 @@ protected override void OnMouseDown(MouseEventArgs e) {
         }
     }
 
+    [System.Diagnostics.DebuggerStepThrough]
     protected override void WndProc(ref Message m) {
         switch (m.Msg) {
             case WM_SETFOCUS when ViewOnly:
@@ -61,14 +130,41 @@ protected override void WndProc(ref Message m) {
                 m.Result = IntPtr.Zero;
             } return;
 
-            case WM_SETCURSOR: {
-                if (Cursor == Cursors.Hand) {
-                    NativeMethods.SetCursor(Consts.SystemHand);
-                    m.Result = IntPtr.Zero;
-                    return;
-                }
+            case WM_SETCURSOR when Cursor == Cursors.Hand: {
+                NativeMethods.SetCursor(Consts.SystemHand);
+                m.Result = IntPtr.Zero;
+            } break;
+
+            default: {
+                base.WndProc(ref m);
             } break;
         }
-        base.WndProc(ref m);
     }
+}
+[Flags]
+internal enum ScrollInfoMask : uint {
+    SIF_RANGE = 0x1,
+    SIF_PAGE = 0x2,
+    SIF_POS = 0x4,
+    SIF_DISABLENOSCROLL = 0x8,
+    SIF_TRACKPOS = 0x10,
+    SIF_ALL = (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS),
+}
+[Flags]
+internal enum SBOrientation : int {
+    SB_HORZ = 0x0,
+    SB_VERT = 0x1,
+    SB_CTL = 0x2,
+    SB_BOTH = 0x3
+}
+[Serializable, StructLayout(LayoutKind.Sequential)]
+internal struct SCROLLINFO {
+    public int cbSize; // (uint) int is because of Marshal.SizeOf
+    public ScrollInfoMask fMask;
+    public int nMin;
+    public int nMax;
+    public uint nPage;
+    public int nPos;
+    public int nTrackPos;
+    public bool ScrolledToBottom => nPage + nPos >= nMax;
 }

Controls/ExtendedTextBox.cs

@@ -1,4 +1,6 @@
-namespace murrty.controls;
+/* ExtendedTextBox by murrty */
+
+namespace murrty.controls;
 
 using System;
 using System.ComponentModel;

Controls/ExtendedWebClient.cs

@@ -1,4 +1,6 @@
-namespace murrty.classcontrols;
+/* ExtendedWebClient by murrty */
+
+namespace murrty.classcontrols;
 
 using System;
 using System.ComponentModel;

Controls/Natives/NativeMethods.cs

@@ -13,12 +13,19 @@ internal static class NativeMethods {
     /// <param name="lParam">Additional message-specific information.</param>
     /// <returns>The return value specifies the result of the message processing; it depends on the message sent.</returns>
     [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
-    internal static extern int SendMessage(
+    internal static extern nint SendMessage(
         [In] nint hWnd,
-        [In] uint wMsg,
+        [In] nint wMsg,
         [In] nint wParam,
         [In] nint lParam);
 
+    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
+    internal static extern nint SendMessage(
+        [In] nint hWnd,
+        [In] nint wMsg,
+        [In] nint wParam,
+        [In] ref System.Drawing.Point lParam);
+
     /// <summary>
     /// Loads the specified cursor resource from the executable (.EXE) file associated with an application instance.
     /// This function has been superseded by the LoadImage function.

Controls/SplitButton.cs

@@ -1,4 +1,6 @@
-namespace murrty.controls;
+/* SplitButton by murrty, originally based on another SplitButton from somewhere I don't remember where. */
+
+namespace murrty.controls;
 
 using System.ComponentModel;
 using System.Windows.Forms;

youtube-dl-gui-updater/Forms/frmUpdaterInvalidData.cs

@@ -7,6 +7,10 @@ public frmUpdaterInvalidData() {
         this.Shown += (s, e) => System.Media.SystemSounds.Hand.Play();
     }
     private void LoadLanguage() {
-
+        this.Text = Language.frmUpdaterInvalidData;
+        lbUpdaterInvalidData.Text = Language.lbUpdaterInvalidData;
+        btnUpdaterInvalidDataUpdateLatest.Text = Language.btnUpdaterInvalidDataUpdateLatest;
+        btnUpdaterInvalidDataUpdatePreRelease.Text = Language.btnUpdaterInvalidDataUpdatePreRelease;
+        btnUpdaterInvalidDataDoNotUpdate.Text = Language.btnUpdaterInvalidDataDoNotUpdate;
     }
 }