dynamic DLL 调用错误 -The value of ESP was not properly saved across a function call

最新推荐文章于 2024-03-11 16:34:41 发布

最新推荐文章于 2024-03-11 16:34:41 发布 · 129 阅读

文章标签：

#c/c++

文章详细介绍了在使用DLL时遇到的ESP值未正确保存导致的函数调用错误，并提供了解决方案，即在函数调用前加入WINAPI关键字，以确保调用函数和函数指针具有相同的调用约定。

DLL 调用错误 -The value of ESP was not properly saved across a function call.

在调用DLL中的函数有时候会出现如下对话框的错误：

Microsoft Visual C++ Debug Library:

Debug Error:
Program: ...
Module:
File: i386/chkesp.c
Line: 42

The value of ESP was not properly saved across a function call. This is usually a result of calling a function declared with one calling convention with a function pointer declared with a different calling convention.

(Press Retry to Debug the Application)

其解决方法之一是：

在函数调用前加入 WINAPI

例如：

typedef BOOL (WINAPI *LoadSDK)();
typedef INT (WINAPI *BarcodeAnalyzeImage)(LPCTSTR lpszImagePath, long pVal);
typedef INT (WINAPI *BarcodeResult)(INT nItem, LPSTR lpszBuffer, int nBufferLen);
typedef void (WINAPI *FreeSDK)();