InitializeUserInput 方法 (ActiveX) 
初始化 GetKeyword 方法。 支持的平台:仅限 Windows 签名VBA: object.InitializeUserInput Bits [, Keyword] 
 返回值 (RetVal)无返回值。 言论在调用 之前,必须使用此方法定义关键字。某些用户输入法除了接受它们通常返回的值之外的关键字值,前提是已调用此方法来定义关键字。可以接受关键字的用户输入法有:、、、和。GetKeywordGetKeywordGetIntegerGetRealGetDistanceGetAngleGetOrientationGetPointGetCorner 例子VBA: Sub Example_InitializeUserInput()
    ' This example prompts for user input of a point. By using the
    ' InitializeUserInput method to define a keyword list, the example can also
    ' return keywords entered by the user.
    
    AppActivate ThisDrawing.Application.Caption
    
    On Error Resume Next
    
    ' Define the valid keywords
    Dim keywordList As String
    keywordList = "Line Circle"
    
    ' Call InitializeUserInput to set up the keywords
    ThisDrawing.Utility.InitializeUserInput 128, keywordList
    
    ' Get the user input
    Dim returnPnt As Variant
    returnPnt = ThisDrawing.Utility.GetPoint(, vbLf & "Enter a point [Line/Circle]: ")
    If Err Then
         If StrComp(Err.Description, "User input is a keyword", 1) = 0 Then
         ' One of the keywords was entered
             Dim inputString As String
             Err.Clear
             inputString = ThisDrawing.Utility.GetInput
             MsgBox "You entered the keyword: " & inputString
         Else
             MsgBox "Error selecting the point: " & Err.Description
             Err.Clear
         End If
    Else
        ' Display point coordinates
        MsgBox "The WCS of the point is: " & returnPnt(0) & ", " & returnPnt(1) & ", " & returnPnt(2), , "GetInput Example"
    End If
    
End Sub
可视化 LISP: (vl-load-com)
(defun c:Example_InitializeUserInput()
    ;; This example prompts for user input of a point. By using the
    ;; InitializeUserInput method to define a keyword list, it can also
    ;; return keywords entered by the user.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the valid keywords
    (setq keywordList "Line Circle")
    
    ;; Call InitializeUserInput to set up the keywords
    (vla-InitializeUserInput (vla-get-Utility doc) 128 keywordList)
    
    ;; Get the user input
    (setq returnPntOrErr (vl-catch-all-apply 'vla-GetPoint (list (vla-get-Utility doc) nil "Enter a point [Line/Circle]: ")))
    (if (= (type returnPntOrErr)'VL-CATCH-ALL-APPLY-ERROR)
        (progn
            (if (= (vl-catch-all-error-message returnPntOrErr) "Automation Error. User input is a keyword")
	        (progn
                    (setq inputString (vla-GetInput (vla-get-Utility doc)))
                    (alert (strcat "You entered the keyword: " inputString))
		)
                (alert "User pressed ESC or unknown input was provided.")
	    )
        )
        ;; Display point coordinates
        (progn
	    (setq returnPnt (vlax-safearray->list (vlax-variant-value returnPntOrErr)))
            (alert (strcat "The WCS of the point is: " (rtos (nth 0 returnPnt) 2) ", " (rtos (nth 1 returnPnt) 2) ", " (rtos (nth 2 returnPnt) 2)))
	)
    )
)
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