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FullCRCValidation 属性（ActiveX）

2024-5-18 18:33| 发布者: admin| 查看: 16| 评论: 0|原作者: admin|来自: AutoCAD

指定每次将对象读入图形时是否应执行循环冗余校验（CRC）。

支持的平台：仅限 Windows

签名

VBA：

object.FullCRCValidation

对象

类型：PreferencesOpenSave

此属性应用于的对象。

属性值

只读：不

类型：布尔

True：开启全时循环冗余校验。
False：关闭全时循环冗余检查。

言论

此属性的初始值为。False

如果图形已损坏，并且您怀疑存在硬件问题或AutoCAD错误，请设置为。FullCRCValidationTrue

例子

VBA：

Sub Example_FullCRCValidation()
    ' This example returns the current setting of
    ' FullCRCValidation. It then changes the value, and finally
    ' it resets the value back to the original setting.
    
    Dim preferences As AcadPreferences
    Dim currFullCRCValidation As Boolean
    
    Set preferences = ThisDrawing.Application.preferences
    
    ' Retrieve the current FullCRCValidation value
    currFullCRCValidation = preferences.OpenSave.FullCRCValidation
    MsgBox "The current value for FullCRCValidation is " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"
    
    ' Change the value for FullCRCValidation
    preferences.OpenSave.FullCRCValidation = Not (currFullCRCValidation)
    MsgBox "The new value for FullCRCValidation is " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"
    
    ' Reset FullCRCValidation to its original value
    preferences.OpenSave.FullCRCValidation = currFullCRCValidation
    MsgBox "The FullCRCValidation value is reset to " & preferences.OpenSave.FullCRCValidation, vbInformation, "FullCRCValidation Example"
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_FullCRCValidation()
    ;; This example returns the current setting of
    ;; FullCRCValidation. It then changes the value, and finally
    ;; it resets the value back to the original setting.
    (setq acadObj (vlax-get-acad-object))
    (setq preferences (vla-get-Preferences acadObj))
    
    ;; Retrieve the current FullCRCValidation value
    (setq currFullCRCValidation (vla-get-FullCRCValidation (vla-get-OpenSave preferences)))
    (alert (strcat "The current value for FullCRCValidation is " (if (= currFullCRCValidation :vlax-true) "True" "False")))
    
    ;; Change the value for FullCRCValidation
    (setq newFullCRCValidation (if (= currFullCRCValidation :vlax-true) :vlax-false :vlax-true))
    (vla-put-FullCRCValidation (vla-get-OpenSave preferences) newFullCRCValidation)
    (alert (strcat "The new value for FullCRCValidation is " (if (= newFullCRCValidation :vlax-true) "True" "False")))
    
    ;; Reset FullCRCValidation to its original value
    (vla-put-FullCRCValidation (vla-get-OpenSave preferences) currFullCRCValidation)
    (alert (strcat "The FullCRCValidation value is reset to " (if (= currFullCRCValidation :vlax-true) "True" "False")))
)