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ActiveLayer 属性（ActiveX）

2024-5-18 18:44| 发布者: admin| 查看: 249| 评论: 0|原作者: admin|来自: AutoCAD

指定活动图层。

支持的平台：仅限 Windows

签名

VBA：

object.ActiveLayer

对象

类别： 文档

此属性应用于的对象。

属性值

只读：不

类型：图层

当前处于活动状态的图层。

言论

创建新对象时，将放置在活动图层上。若要更改现有对象所在的图层，请使用该对象的属性。Layer

要创建新图层，请使用以下方法。Add

要更改图层的可见性或其他属性，请参阅对象。Layer

例子

VBA：

Sub Example_ActiveLayer()
    ' This example returns the current layer
    ' and then adds a new layer.
    ' Finally, it returns the layer to the previous setting.
    Dim currLayer As AcadLayer
    Dim newLayer As AcadLayer
    
    ' Return the current layer of the active document
    Set currLayer = ThisDrawing.ActiveLayer
    MsgBox "The current layer is " & currLayer.name, vbInformation, "ActiveLayer Example"
    
    ' Create a Layer and make it the active layer
    Set newLayer = ThisDrawing.Layers.Add("TestLayer")
    ThisDrawing.ActiveLayer = newLayer
    MsgBox "The new layer is " & newLayer.name, vbInformation, "ActiveLayer Example"

    ' Reset the layer to its previous setting
    ThisDrawing.ActiveLayer = currLayer
    MsgBox "The active layer is reset to " & currLayer.name, vbInformation, "ActiveLayer Example"
End Sub

可视化 LISP：

(vl-load-com)
(defun c:Example_ActiveLayer()
    ;; This example returns the current layer
    ;; and then adds a new layer.
    ;; Finally, it returns the layer to the previous setting.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Return the current layer of the active document
    (setq currLayer (vla-get-ActiveLayer doc))
    (alert (strcat "The current layer is " (vla-get-Name currLayer)))
    
    ;; Create a Layer and make it the active layer
    (setq layers (vla-get-Layers doc))
    (setq newLayer (vla-Add layers "TestLayer"))
    (alert (strcat "The new layer is " (vla-get-Name newLayer)))

    ;; Restore the previous layer
    (setq currLayer (vla-get-ActiveLayer doc))
    (alert (strcat "The active layer is restored to " (vla-get-Name currLayer)))
)