检查TreeView滚动条可见性

本文关键字：可见性滚动条 TreeView 检查 | 更新日期: 2023-09-27 18:06:05

如何检查垂直滚动条在TreeView中是否可见?

检查TreeView滚动条可见性

你必须做一些p/invoke来获得TreeView的样式。

    private const int GWL_STYLE = -16;
    private const int WS_VSCROLL = 0x00200000;
    [DllImport("user32.dll", ExactSpelling = false, CharSet = CharSet.Auto)]
    private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
    bool VScrollVisible()
    {
        int style = GetWindowLong(myTreeView.Handle, GWL_STYLE);
        return  ((style & WS_VSCROLL) != 0);
    }