帮助字符串属性 （ActiveX）

签名

工 务 局：

object.HelpString

对象

类型：弹出菜单项，工具栏，工具栏项

此属性适用的对象。

属性值

只读：不

类型：字符串

工具栏、工具栏项或菜单项的帮助字符串。

言论

帮助字符串是当用户突出显示菜单项时显示在 AutoCAD 状态行中的文本字符串。

例子

工 务 局：

Sub Example_HelpString()
    ' This example creates a new toolbar called "TestToolbar" and inserts a
    ' button into it. The HelpString property of the toolbar is then
    ' read and changed.
    ' To remove the toolbar after execution of this macro, use the Customize Menu
    ' option from the Tools menu.
    
    Dim currMenuGroup As acadMenuGroup
    Set currMenuGroup = ThisDrawing.Application.MenuGroups.Item(0)
    
    ' Create the new toolbar
    Dim newToolBar As AcadToolbar
    Set newToolBar = currMenuGroup.Toolbars.Add("TestToolbar")
    
    ' Add a button to the new toolbar.
    Dim newButton1 As AcadToolbarItem
    Dim openMacro As String
    
    ' Assign the macro string the VB equivalent of "ESC ESC _open "
    openMacro = Chr(3) & Chr(3) & Chr(95) & "open" & Chr(32)
    
    Set newButton1 = newToolBar.AddToolbarButton("", "NewButton1", "Open a file.", openMacro)
    
    ' Display the toolbar
    newToolBar.Visible = True
    
    ' Read the current value of the Help string
    MsgBox "The current HelpString for the toolbar button is: " & newButton1.HelpString
    
    ' Change the value of the Help string
    newButton1.HelpString = "Use this toolbar button to Open a file."
    
    ' Read the new value of the Help string
    MsgBox "The new HelpString for the toolbar button is: " & newButton1.HelpString
End Sub

Visual LISP：

(vl-load-com)
(defun c:Example_HelpString()
    ;; This example creates a new toolbar called "TestToolbar" and inserts a
    ;; button into it. The HelpString property of the toolbar is then
    ;; read and changed.
    ;; To remove the toolbar after execution of this macro, use the Customize Menu
    ;; option from the Tools menu.
    (setq acadObj (vlax-get-acad-object))
    (setq currMenuGroup (vla-Item (vla-get-MenuGroups acadObj) 0))
    
    ;; Create the new toolbar
    (setq newToolBar (vla-Add (vla-get-Toolbars currMenuGroup) "TestToolbar"))
    
    ;; Add a button to the new toolbar.
    ;; Assign the macro string the VB equivalent of "ESC ESC _open "
    (setq openMacro (strcat (Chr 3) (Chr 3) (Chr 95) "open" (Chr 32)))
    (setq newButton1 (vla-AddToolbarButton newToolBar "" "NewButton1" "Open a file." openMacro))
    
    ;; Display the toolbar
    (vla-put-Visible newToolBar :vlax-true)
    
    ;; Read the current value of the Help string
    (alert (strcat "The current HelpString for the toolbar button is: " (vla-get-HelpString newButton1)))
    
    ;; Change the value of the Help string
    (vla-put-HelpString newButton1 "Use this toolbar button to Open a file.")
    
    ;; Read the new value of the Help string
    (alert (strcat "The new HelpString for the toolbar button is: " (vla-get-HelpString newButton1)))
)