问如何在visual studio中更改文本框的制表位长度？

EN

private const UInt32 EM_SETTABSTOPS = 0x00CB;
private const int unitsPerCharacter = 4;

[DllImport("CoreDll.dll")]
static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, ref IntPtr lParam);

public static void SetTextBoxTabStopLength(TextBox tb, int tabSizeInCharacters)
{
    // 1 means all tab stops are the the same length
    // This means lParam must point to a single integer that contains the desired tab length
    const uint regularLength = 1;

    // A dialog unit is 1/4 of the average character width
    int length = tabSizeInCharacters * unitsPerCharacter;

    // Pass the length pointer by reference, essentially passing a pointer to the desired length
    IntPtr lengthPointer = new IntPtr(length);
    SendMessage(tb.Handle, EM_SETTABSTOPS, (IntPtr)regularLength, ref lengthPointer);
}