反复调用GetModuleHandle

问题描述

我正在研究一些旧代码，并遇到了以下内容

I''m wading through some legacy code and came across the following

HANDLE	hDll;

for (;;) {
    hDll = GetModuleHandle("xxx.dll"); // this is in xxx.dll''s source
    if (NULL != hDll) {
         break;
    }
}

我真的看不出这样做的意义，而且MSDN没有对重复调用一事无成.它要么成功并且仅循环一次，要么失败并永远循环.

有什么需要的情况吗?

在此先感谢

I really don''t see the point of doing this, and MSDN says nothing about calling it repeatedly. Either it succeeds and loops only once, or fails and loops forever.

Is there any scenario where it is required?

Thanks in advance

推荐答案

#include<windows.h>
#include<stdio.h>
#include<string.h>

int main(void)
{
	HMODULE module_handle = 0;
	while((module_handle = GetModuleHandle(TEXT("library.dll"))) == 0)
		printf("The specified module could not be found.\n");
	printf("Module handle = %x\n", module_handle);
	return 0;
}

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