_beginthreadex静态成员函数 [英] _beginthreadex static member function
本文介绍了_beginthreadex静态成员函数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何创建静态成员函数的线程例程
How do I create a thread routine of a static member function
class Blah
{
static void WINAPI Start();
};
// ..
// ...
// ....
hThread = (HANDLE)_beginthreadex(NULL, 0, CBlah::Start, NULL, NULL, NULL);
这给我以下错误:
***error C2664: '_beginthreadex' : cannot convert parameter 3 from 'void (void)' to 'unsigned int (__stdcall *)(void *)'***
我做错了什么?
推荐答案
有时候,读取您遇到的错误很有用。
Sometimes, it is useful to read the error you're getting.
cannot convert parameter 3 from 'void (void)' to 'unsigned int (__stdcall *)(void *)'
在它说什么。对于参数三,你给它一个带有签名 void(void)
的函数,即一个不带参数,不返回任何内容的函数。它无法将此转换为 _beginthreadex
的 unsigned int(__stdcall *)(void *)
预期:
Let's look at what it says. For parameter three, you give it a function with the signature void(void)
, that is, a function which takes no arguments, and returns nothing. It fails to convert this to unsigned int (__stdcall *)(void *)
, which is what _beginthreadex
expects:
它需要一个函数:
-
unsigned int
: - 使用
stdcall
调用约定 - 采用
void *
参数。
- Returns an
unsigned int
: - Uses the
stdcall
calling convention - Takes a
void*
argument.
我的建议是给它一个函数与它要求的签名。
So my suggestion would be "give it a function with the signature it's asking for".
class Blah
{
static unsigned int __stdcall Start(void*);
};
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