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AutoCAD 2022 开发者帮助

IncrementalSavePercent 属性（ActiveX）

2024-5-18 18:45| 发布者: admin| 查看: 198| 评论: 0|原作者: admin|来自: AutoCAD

指定图形文件中允许的浪费空间的百分比。

支持的平台：仅限 Windows

签名

VBA：

object.IncrementalSavePercent

对象

类型：PreferencesOpenSave

此属性应用于的对象。

属性值

只读：不

类型：整数

有效范围为 0 到 100。

言论

此属性的初始值为 50。

当达到指定的百分比时，AutoCAD 将执行完全保存，而不是增量保存。完整保存消除了空间浪费。如果将此属性设置为 0，则每次保存都是一次完整保存。

尽管增量保存会增加图形的大小，但不要设置非常低的值。为获得最佳性能，请将该值设置为 50。如果内存成为问题，请将值设置为 25。如果将该值设置为 20 或更小，则性能会显著降低。较低的值会降低程序的性能，因为 AutoCAD 会更频繁地执行耗时的完全保存。

注意：此属性的值存储在 ISAVEPERCENT 系统变量中。

例子

VBA：

Sub Example_IncrementalSavePercent()
    ' This example returns the current setting of
    ' IncrementalSavePercent. It then changes the value, and finally
    ' it resets the value back to the original setting.
    
    Dim preferences As AcadPreferences
    Dim currIncrementalSavePercent As Integer
    Dim newIncrementalSavePercent As Integer
    
    Set preferences = ThisDrawing.Application.preferences
    
    ' Retrieve the current IncrementalSavePercent value
    currIncrementalSavePercent = preferences.OpenSave.IncrementalSavePercent
    MsgBox "The current value for IncrementalSavePercent is " & currIncrementalSavePercent, vbInformation, "IncrementalSavePercent Example"
    
    ' Change the value for IncrementalSavePercent
    newIncrementalSavePercent = 20
    preferences.OpenSave.IncrementalSavePercent = newIncrementalSavePercent
    MsgBox "The new value for IncrementalSavePercent is " & newIncrementalSavePercent, vbInformation, "IncrementalSavePercent Example"
    
    ' Reset IncrementalSavePercent to its original value
    preferences.OpenSave.IncrementalSavePercent = currIncrementalSavePercent
    MsgBox "The IncrementalSavePercent value is reset to " & currIncrementalSavePercent, vbInformation, "IncrementalSavePercent Example"
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_IncrementalSavePercent()
    ;; This example returns the current setting of
    ;; IncrementalSavePercent. 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 IncrementalSavePercent value
    (setq currIncrementalSavePercent (vla-get-IncrementalSavePercent (vla-get-OpenSave preferences)))
    (alert (strcat "The current value for IncrementalSavePercent is " (itoa currIncrementalSavePercent)))
    
    ;; Change the value for IncrementalSavePercent
    (setq newIncrementalSavePercent 20)
    (vla-put-IncrementalSavePercent (vla-get-OpenSave preferences) newIncrementalSavePercent)
    (alert (strcat "The new value for IncrementalSavePercent is " (itoa (vla-get-IncrementalSavePercent (vla-get-OpenSave preferences)))))
    
    ;; Reset IncrementalSavePercent to its original value
    (vla-put-IncrementalSavePercent (vla-get-OpenSave preferences) currIncrementalSavePercent)
    (alert (strcat "The IncrementalSavePercent value is reset to " (itoa currIncrementalSavePercent)))
)