Question

有没能两个richTextBox，用其中一个的滚动条控制另一个的界面滚动，使两个richTextBox滚动达到一致

Answer 1

#region ///同步滚动条

[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
public const int WM_HSCROLL = 276;
public const int WM_VSCROLL = 277;
public const int WM_SETCURSOR = 32;
public const int WM_MOUSEWHEEL = 522;
public const int WM_MOUSEMOVE = 512;
public const int WM_MOUSELEAVE = 675;
public const int WM_MOUSELAST = 521;
public const int WM_MOUSEHOVER = 673;
public const int WM_MOUSEFIRST = 512;
public const int WM_MOUSEACTIVATE = 33;

private RichTextBox otherRichTextBox;
public RichTextBox OtherRichTextBox
{
get { return otherRichTextBox; }
set { otherRichTextBox = value; }
}
protected override void WndProc(ref Message m)
{
if ((otherRichTextBox != null) &&
(m.Msg == WM_HSCROLL ||
m.Msg == WM_VSCROLL ||
m.Msg == WM_SETCURSOR ||
m.Msg == WM_MOUSEWHEEL ||
m.Msg == WM_MOUSEMOVE ||
m.Msg == WM_MOUSELEAVE ||
m.Msg == WM_MOUSELAST ||
m.Msg == WM_MOUSEHOVER ||
m.Msg == WM_MOUSEFIRST ||
m.Msg == WM_MOUSEACTIVATE))
{
SendMessage(otherRichTextBox.Handle, m.Msg, m.WParam, m.LParam);
}
base.WndProc(ref m);
}