双缓存试试
Dim tbl As WinForm.TabControl = e.Form.Controls("TabControl1")
Dim btbl = tbl.basecontrol
Dim p = btbl.tabpages(0)
p.Gettype().GetProperty("DoubleBuffered", Reflection.BindingFlags.Instance Or System.Reflection.BindingFlags.NonPublic).SetValue(p,True,Nothing)
tbl.TabPages(0).BackgroundImage = GetImage("d:\test.jpg")
tbl.TabPages(0).BackgroundImageLayout = System.Windows.Forms.ImageLayout.Stretch
不行,上传例子