VB获取鼠标在窗体上的坐标

不要用form的mousemove事件
我要的是鼠标在窗体上的相对坐标 不是鼠标在屏幕上的坐标

就是不管我在按钮上移动或者在窗体上移动都能获得鼠标在窗体上的坐标
2位 看清楚我是说在窗体上的坐标 不是在屏幕上的坐标

'运行此程序需要再窗体添加控件Timer
Option Explicit
Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Private Declare Function ScreenToClient Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long
Private Type POINTAPI
x As Long
y As Long
End Type

Private Sub Form_Load()
Timer1.Interval = 10 '设置获取鼠标坐标间隔
End Sub

Private Sub Timer1_Timer()
Dim P As POINTAPI
GetCursorPos P '获取鼠标在屏幕中的位置
ScreenToClient Me.hwnd, P '转换为本窗体的坐标
Dim t As Boolean
t = P.x >= 0 And P.y >= 0 And P.x < Me.Width / Screen.TwipsPerPixelX And P.y <= Me.Height / Screen.TwipsPerPixelY
If t Then Me.Caption = "x=" & P.x & "y=" & P.y '按像素显示坐标
'If t Then Me.Caption = "x=" & P.x * Screen.TwipsPerPixelX & "y=" & P.y * Screen.TwipsPerPixelY '按缇显示坐标
End Sub

代码： Option Explicit Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long Private Type POINTAPI x As Long y As Long End Type Dim mp As POINTAPI Private Sub Timer1_Timer() GetCursorPos mp Me.Caption = "X:" & Str(mp.x) & "Y:" & Str(mp.y) End Sub

Option Explicit Private Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long Private Type POINTAPI x As Long y As Long End Type Dim mp As POINTAPI Private Sub Timer1_Timer() GetCursorPos mp Me.Caption = "X:" & Str(mp.x) & "Y:" & Str(mp.y) End Sub