全局代码
Public frm As Windows.Forms.form
Public Sub myTimer_Elapsed(sender As object, e As System.Timers.ElapsedEventArgs)
frm.width += 2
frm.height += 2
If frm.height >= 300 Then
sender.Enabled = False
End If
End Sub
调用
frm = New Windows.Forms.Form
frm.Text = "欢迎使用"
frm.Topmost = True
frm.width = 0
frm.height = 0
Dim lbl As new Windows.Forms.Label
lbl.text = "提示提示提示"
lbl.Top = 10
lbl.left = 10
frm.Controls.Add(lbl)
frm.topmost = True
frm.Show
frm.Top = (SysInfo.ScreenHeight - frm.height - 300) / 2
frm.left = (SysInfo.ScreenWidth - frm.width - 300) / 2
Dim myTimer As new System.Timers.Timer(10)
addhandler myTimer.Elapsed, addressof myTimer_Elapsed
myTimer.AutoReset = True
myTimer.Enabled = True