VB6 函数名称中与号的意义? [英] Significance of an ampersand in VB6 function name?

问题描述

我刚刚收到了一堆遗留的 VB6 (!) 代码，我一直看到在名称末尾使用与号声明的函数，例如，Private Declare Function ShellExecute&....

I just got a bunch of legacy VB6 (!) code dumped on me and I keep seeing functions declared with an ampersand at the end of the name, for example, Private Declare Function ShellExecute& . . ..

我一直无法找到有关其重要性的答案，也无法检测到使用中的任何模式或如此命名的函数的签名.

I've been unable to find an answer to the significance of this, nor have I been able to detect any pattern in use or signature of the functions that have been named thusly.

有人知道那些尾随与号对编译器是否意味着什么，或者至少是否有一些我遗漏的约定?到目前为止，我作为一个奇怪的程序员写下它，但我想确定它背后是否有任何意义.

Anyone know if those trailing ampersands mean anything to the compiler, or at least if there's some convention that I'm missing? So far, I'm writing it off as a strange programmer, but I'd like to know for sure if there's any meaning behind it.

推荐答案

表示函数返回一个 Long(即 32 位整数)值.

It means that the function returns a Long (i.e. 32-bit integer) value.

相当于

Declare Function ShellExecute(...) As Long

完整的后缀列表如下:

Integer %
Long    &
Single  !
Double  #
Currency @
String  $

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