PickAdd Property （ActiveX）

签名

工 务 局：

object.PickAdd

对象

类型：首选项选择

此属性适用的对象。

属性值

只读：不

类型：布尔

• True：通过在选择时按住 Shift 键将对象添加到当前选择集。
• False：通过在选择时按住 Shift 键从选择集中删除对象。

言论

此属性的初始值为 False。

例子

工 务 局：

Sub Example_PickAdd()
    ' This example reads and modifies the preference value that controls
    ' whether objects are added to the selection set using the SHIFT key.
    ' When finished, this example resets the preference value back to
    ' its original value.
    
    Dim ACADPref As AcadPreferencesSelection
    Dim originalValue As Variant, newValue As Variant
    
    ' Get the selection preferences object
    Set ACADPref = ThisDrawing.Application.Preferences.Selection
    
    ' Read and display the original value
    originalValue = ACADPref.PickAdd
    MsgBox "The PickAdd preference is set to: " & originalValue

    ' Modify the PickAdd preference by toggling the value
    ACADPref.PickAdd = Not (ACADPref.PickAdd)
    newValue = ACADPref.PickAdd
    MsgBox "The PickAdd preference has been set to: " & newValue

    ' Reset the preference back to its original value
    '
    ' * Note: Comment out this last section to leave the change to
    '         this preference in effect
    ACADPref.PickAdd = originalValue
    MsgBox "The PickAdd preference was reset back to: " & originalValue
End Sub

Visual LISP：

(vl-load-com)
(defun c:Example_PickAdd()
    ;; This example reads and modifies the preference value that controls
    ;; whether objects are added to the selection set using the SHIFT key.
    ;; When finished, this example resets the preference value back to
    ;; its original value.
    (setq acadObj (vlax-get-acad-object))
    (setq preferences (vla-get-Preferences acadObj))
  
    ;; Read and display the original value
    (setq originalValue (vla-get-PickAdd (vla-get-Selection preferences)))
    (alert (strcat "The PickAdd preference is set to: " (if (= originalValue :vlax-true) "True" "False")))

    ;; Modify the PickAdd preference by toggling the value
    (vla-put-PickAdd (vla-get-Selection preferences) (if (= originalValue :vlax-true) :vlax-false :vlax-true))
    (setq newValue (vla-get-PickAdd (vla-get-Selection preferences)))
    (alert (strcat "The PickAdd preference has been set to: " (if (= newValue :vlax-true) "True" "False")))

    ;; Reset the preference back to its original value
    ;;
    ;; * Note: Comment out this last section to leave the change to
    ;;         this preference in effect
    (vla-put-PickAdd (vla-get-Selection preferences) originalValue)
    (alert (strcat "The PickAdd preference was reset back to: " (if (= originalValue :vlax-true) "True" "False")))
)