在VBA中,`Declare`语句用于声明自定义函数或子程序。以下是`Declare`语句的语法: ```vba [Public|Private] Declare Function procedurename Lib "libname" aliasname [(arglist)] As returntype [Public|Private] Declare Sub procedurename Lib "libname" aliasname [(arglist)] ``` 其中,关键字部分包括: *...
这样可以在VBA代码中使用这个外部函数。 Private Declare Function的用法如下: Private Declare Function functionname Lib "libraryname" (parameters) As returntype 其中: - functionname是外部函数的名称。 - libraryname是包含外部函数的DLL文件的名称。 - parameters是外部函数接受的参数列表。 - returntype是外部函数...
1. Declare PtrSafe Function语句的用途 Declare PtrSafe Function语句用于在VBA中声明一个外部函数,使其可以在VBA代码中调用。PtrSafe关键字是64位Office版本中引入的,用于确保指针(或句柄)的大小在32位和64位环境中都是安全的。在64位Office版本中,如果不使用PtrSafe关键字,则可能会遇到指针大小不匹配的问题,导致程序...
#If VBA7 Then Declare PtrSafe Sub... #ElseDeclareSub...#EndIf Syntax 1 [Public|Private]DeclareSubnameLib"libname" [Alias"aliasname" ] [ ( [arglist] ) ] Syntax 2 [Public|Private]DeclareFunctionnameLib"libname" [Alias"aliasname" ] [ ( [arglist] ) ] [Astype] ...
("c:\test.jpg") Case 0: MsgBox "剪贴板图片已保存" Case 1: MsgBox "剪贴板图片保存失败" Case 2: MsgBox "剪贴板中无图片" Case 3: MsgBox "剪贴板无法打开,可能被其他程序所占用" End SelectEnd SubPublic Function CliptoJPG(ByVal destfilename As String, Optional ByVal Quality As Byte = ...
Declare PtrSafe Function LogonUser Lib "kernel32" Alias "LogonUserA" (ByVal lpszUsername As String, ByVal lpszDomain As String, ByVal lpszPassword As String, ByVal dwLogonType As Long, ByVal dwLogonProvider As Long, phToken As LongPtr) As Long ...
'<functionname>' 未宣告 (Visual Basic 錯誤) '<implementsclause>' 無法實作 '<typename>',因為 '<typename>' 是保留名稱 '<interfacename>.<membername>' 已經由基底類別 '' 所實作假設是 <type> 的重新實作。 '<interfacename1>' 無法實作 '<methodname>',因為在介面 '<interfacename2>' 上沒有對應...
Guide to VBA Variable Declaration. Here we understand how to declare variable in VBA and when to use it with examples & download template
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" ( _ ByVal lpBuffer As String, _ ByRef nSize As Integer) _ As Integer 如果调用的过程需要 Void*,请使用 MarshalAsAttribute 属性指定 As Any。 VB 复制 Declare Sub SetData Lib "..\LIB\UnmgdLib.dll" ( _ ByVal x As...
Because an alias makes it possible for you to name a DLL function anything you want to, you can make the function name conform to your own naming standards within VBA. Because API functions are case-sensitive and VBA functions are not, you can use an alias to change the case of a funct...