设置光标的闪动间隔

把下面代码复制到窗体的代码区, 保存并运行窗体,点击文本框就会看到效果:

'判断插入符光标的闪烁频率
Private Declare Function GetCaretBlinkTime Lib "user32" () As Long
'指定插入符（光标）的闪烁频率
Private Declare Function SetCaretBlinkTime Lib "user32" (ByVal wMSeconds As Long) As Long
Dim OldBlinkTime As Long, Retval As Long

Private Sub Form_Load()
  '保存初始值
   OldBlinkTime = GetCaretBlinkTime
   '设置光标闪烁间隔，以毫秒为单位,括号里面的数值可更改
   Call SetCaretBlinkTime(500)
End Sub

Private Sub Form_Unload(Cancel As Integer)
'恢复初始状态
  Call SetCaretBlinkTime(OldBlinkTime)
End Sub