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关于控制用户输入（VBA/ActiveX）

2024-5-18 18:43| 发布者: admin| 查看: 335| 评论: 0|原作者: admin|来自: AutoCAD

您可以使用该方法定义关键字或将输入类型限制为用户输入法。InitializeUserInput

use 和参数值类似于 AutoLISP 函数。可以与以下方法一起使用：、、、和。不能与该方法一起使用。当用户输入法未返回字符串值时，使用该方法检索字符串值（关键字或任意输入）。initgetInitializeUserInputGetAngleGetCornerGetDistanceGetIntegerGetKeywordGetOrientationGetPointGetRealInitializeUserInputGetStringGetInput

该方法接受两个参数。第一个参数是位编码整数值，用于确定用户输入法的输入选项。第二个参数是定义有效关键字的字符串。InitializeUserInput

在AutoCAD命令提示符下从用户处获取整数值或关键字

以下示例提示用户输入正数、非负整数值或关键字：

Sub Ch3_UserInput()
  ' The first parameter of InitializeUserInput (6)
  ' restricts input to positive and non-negative
  ' values. The second parameter is the list of
  ' valid keywords.
  ThisDrawing.Utility.InitializeUserInput 6, "Big Small Regular"

  ' Set the prompt string variable
  Dim promptStr As String
  promptStr = vbCrLf & "Enter the size or (Big/Small/<Regular>):"

  ' At the GetInteger prompt, entering a keyword or pressing
  ' ENTER without entering a value results in an error. To allow
  ' your application to continue and check for the error
  ' description, you must set the error handler to resume on error.
  On Error Resume Next

  ' Get the value entered by the user
  Dim returnInteger As Integer
  returnInteger = ThisDrawing.Utility.GetInteger(promptStr)

  ' Check for an error. If the error number matches the
  ' one shown below, then use GetInput to get the returned
  ' string; otherwise, use the value of returnInteger.

  If Err.Number = -2145320928 Then
    Dim returnString As String
    Debug.Print Err.Description
    returnString = ThisDrawing.Utility.GetInput()
    If returnString = "" Then        'ENTER returns null string
      returnString = "Regular"     'Set to default
    End If
    Err.Clear
  Else                                 'Otherwise,
    returnString = returnInteger     'Use the value entered
  End If

  ' Display the result
  MsgBox returnString, , "InitializeUserInput Example"
End Sub