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窗体自动居中代码
作者:佚名  文章来源:不详  点击数  更新时间:2008/7/28 12:15:27  文章录入:杜斌  责任编辑:杜斌

  使窗体居中显示代码

  access中的窗体虽然设置了自动居中,但是打开后总是有点不居中的感觉,加下如下代码可以做到真正居中显示

  Private Sub Form_Load()

  DoCmd.Echo False

  Dim x, y As Integer

  DoCmd.Maximize

  x = Me.WindowWidth

  y = Me.WindowHeight

  DoCmd.Restore

  DoCmd.Echo True

  Move (x - Me.WindowWidth) / 2, (y - Me.WindowHeight) / 2

  End Sub

  下列代码适用于accessXP以上

  '使用方法:

  'Private Sub Form_Load()

  'moveFormToCenter Me '居中

  'End Sub

  'Private Sub Form_Load()

  'moveFormToCenter Me, 3000, 2000 '调整窗体大小并居中

  'End Sub

  Option Compare Database

  Option Explicit

  Type RECT

  x1 As Long

  y1 As Long

  x2 As Long

  y2 As Long

  End Type

  Public Declare Function GetClientRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long

  '菜单栏高:22

  '工具栏高:26

  '状态栏高:20

  Public Function moveFormToCenter(ByRef Frm As Form, Optional ByVal longFormWidth As Long = 0, Optional ByVal longFormHeight As Long = 0)

  Dim lngW, lngH As Long

  lngW = GetaccessClientWidth() - 4 '-4为测试微调值

  lngW = lngW * 15

  lngH = GetaccessClientHeight() - 4 '-4为测试微调值

  'lngH = lngH - (22 * 1) '一个菜单栏

  lngH = lngH - (26 * 1) '一个工具栏

  'lngH = lngH - (20 * 1) '一个状态栏

  lngH = lngH * 15

  If longFormWidth + longFormHeight = 0 Then

  Frm.Move (lngW - Frm.WindowWidth) / 2, (lngH - Frm.WindowHeight) / 2

  End If

  If longFormWidth > 0 And longFormHeight > 0 Then

  Frm.Move (lngW - longFormWidth) / 2, (lngH - longFormHeight) / 2, longFormWidth, longFormHeight

  End If

  End Function

  Public Function GetaccessClientWidth() As Integer

  Dim R As RECT

  Dim hwnd As Long

  Dim RetVal As Long

  hwnd = Application.hWndaccessApp

  RetVal = GetClientRect(hwnd, R)

  'Debug.Print R.x2

  'Debug.Print R.x1

  GetaccessClientWidth = R.x2 - R.x1

  End Function

  Public Function GetaccessClientHeight() As Integer

  Dim R As RECT

  Dim hwnd As Long

  Dim RetVal As Long

  hwnd = Application.hWndaccessApp

  RetVal = GetClientRect(hwnd, R)

  'Debug.Print R.y2

  'Debug.Print R.y1

  GetaccessClientHeight = R.y2 - R.y1

  End Function

  相关链接:

  2008年下半年全国计算机等级考试报名信息汇总

  更多信息请访问:计算机等级考试站 计算机等级考试在线题库 计算机等级考试论坛

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