Run-Time Check Failure #0 - 错误问题

来源：互联网发布：mac virtualbox传文件编辑：程序博客网时间：2024/05/02 02:03

很久没写代码，一天几行的代码:

typedef int ( *PFUN)(HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType);
void CTestProcessMonitorDlg::OnBnClickedButton1()
{
   // TODO: Add your control notification handler code here

   //MessageBox(TEXT("Hello"), TEXT("Test"));

   //typedef void (*pfv) ();

   HMODULE hmod = ::LoadLibraryExW(TEXT("user32.dll"), NULL, 0);
   if (hmod != NULL)
   {
       PFUN pFun= (PFUN)GetProcAddress(hmod, "MessageBoxW");
       if (pFun != NULL)
       {
           pFun(m_hWnd, TEXT("Hello"), TEXT("Test"), MB_YESNO);
       }

       :FreeLibrary(hmod);
   }



}

突然出现以下的错误：

Run-Time Check Failure #0 - 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.

代码改为如下，则问题没有了

typedef int (WINAPI *PFUN)(HWND hWnd, LPCTSTR lpText, LPCTSTR lpCaption, UINT uType);
void CTestProcessMonitorDlg::OnBnClickedButton1()
{
   // TODO: Add your control notification handler code here

   //MessageBox(TEXT("Hello"), TEXT("Test"));

   //typedef void (*pfv) ();

   HMODULE hmod = ::LoadLibraryExW(TEXT("user32.dll"), NULL, 0);
   if (hmod != NULL)
   {
       PFUN pFun= (PFUN)GetProcAddress(hmod, "MessageBoxW");
       if (pFun != NULL)
       {
           pFun(m_hWnd, TEXT("Hello"), TEXT("Test"), MB_YESNO);
       }

       ::FreeLibrary(hmod);
   }

}

// 调用约定出现问题，以前这样调用api也没有用上WINAPI ，现在突然就需要了，很是迷惑？？？盼知情者指点！