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BeginFileDrop 事件（ActiveX）

2024-5-18 18:34| 发布者: admin| 查看: 78| 评论: 0|原作者: admin|来自: AutoCAD

在应用程序主窗口中拖放文件时触发。

支持的平台：仅限 Windows

签名

VBA：

object.BeginFileDrop(FileName, Cancel)

对象

类型： 应用

计算结果为有效容器对象的对象表达式。在这种情况下，唯一有效的容器是应用程序。

文件名

类型：字符串;输入到处理程序

已删除在主应用程序窗口中的文件的名称。

取消

类型：布尔;处理程序的输出

True：中止图形的加载。
False：允许继续加载图形。

言论

显示模式对话框时不会触发任何事件。

例子

VBA：

Public WithEvents ACADApp As AcadApplication    ' Use with Application Event Examples
Sub Example_AcadApplication_Events()
    ' This example intializes the public variable (ACADApp) which will be used
    ' to intercept AcadApplication Events
    '
    ' The VBA WithEvents statement makes it possible to intercept an generic object
    ' with the events associated with that object.
    '
    ' Before you will be able to trigger any of the AcadApplication events,
    ' you will first need to run this procedure.
    
    ' We could get the application from the ThisDocument object, but that would
    ' require having a drawing open, so we grab it from the system.
    Set ACADApp = GetObject(, "AutoCAD.Application.24")
End Sub

Private Sub ACADApp_BeginFileDrop(ByVal FileName As String, Cancel As Boolean)
    ' This example intercepts an Application BeginFileDrop event.
    '
    ' This event is triggered when a drawing file is dragged into AutoCAD.
    '
    ' To trigger this example event:
    '     1) Make sure to run the example that initializes
    '     the public variable (named ACADApp) linked to this event.
    '
    '     2) Drag an AutoCAD drawing file into the AutoCAD application from either
    '     the Windows Desktop or Windows Explorer

    ' Use the "Cancel" variable to stop the loading of the dragged file, and the "FileName"
    ' variable to notifiy the user which file is about to be dragged in.
    If MsgBox("AutoCAD is about to load " & FileName & vbCrLf & _
              "Do you want to continue loading this file?", vbYesNoCancel + vbQuestion) <> vbYes Then
        Cancel = True
    End If
End Sub

可视化 LISP：