回复:负载库 [英] Re: Loadlibrary

问题描述

大家好，

在我的win32应用程序中，我使用Loadlibrary加载了一个dll.它执行得很好，但是当我使用FreeLibrary()函数卸载该dll时，它会卸载该dll，但是在卸载该dll之后给出类似无法从0x00234fe8读取project.exe中某个位置的位置"的异常.

我认为此异常的原因与dll ao应用程序的属性有关，但我无法找到确切的原因.
任何人都知道为什么发生此异常.
应用程序代码如下:

typedef int (* importFunction)( int ， int );

Hi All,

In my win32 application I loaded a dll using Loadlibrary.
It executes fine but when I unload the dll using FreeLibrary() function it unload the dll but after unloading the dll it gives an exception like "unable to read from 0x00234fe8 something location in project.exe".

I think reson of this exception is related with the properties of our dll ao application, but I unable to find exact reson.
Anyone has an idea why this exception occured.
code of application is given below:

typedef int (*importFunction) (int,int);

int main()

int main()

{

imortFunction mul;
int结果;

imortFunction mul;
int result;

HINSTANCE hinstLib = LoadLibrary(TEXT " C:\\ new_myproject \\ mydll.dll" )) ;

HINSTANCE hinstLib = LoadLibrary(TEXT"C:\\new_myproject\\mydll.dll"));

if (hinstLib == NULL)

if (hinstLib == NULL)

{

printf( &;错误:无法加载DLL \ n"" );

printf("ERROR: unable to load DLL\n");

返回 1;

return 1;

}

mul =(importFunction)GetProcAddress(hinstLib， "mul" );

mul = (importFunction)GetProcAddress(hinstLib, "mul");

如果 (mul == NULL)

if (mul == NULL)

{

printf( "错误:无法找到DLL函数\ n" );

printf("ERROR: unable to find DLL function\n");

FreeLibrary(hinstLib);

FreeLibrary(hinstLib);

返回 1;

return 1;

}

//调用函数.

// Call function.

result = mul(1，2);

result = mul(1, 2);

//卸载DLL文件

// Unload DLL file

FreeLibrary(hinstLib);

FreeLibrary(hinstLib);

printf( "结果是:％d \ n" ，结果)； //此处发生异常

printf("The result is: %d\n", result); // exception occured here

返回 0;

return 0;

}

在上一个printf()中，它给出了异常.任何人都知道发生此异常的原因.是否需要在dll或应用程序中设置任何属性? br>

请先谢谢.

}

In last printf() it gives exception.Anyone has an idea why this exception occured.Is there any property which I need to set in dll or application?


Thanks in advance.

推荐答案

我会冒险猜测堆栈损坏.您如何从DLL导出功能?

I would hazard a guess at stack corruption. How are you exporting the function from the DLL?

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