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extern "C" _declspec(dllexport) char * __stdcall CircleAreaB();
int WINAPI DllEntryPoint(HINSTANCE hinst, unsigned long reason, void* lpReserved)
{
return 1;
}
//---------------------------------------------------------------------------
char * __stdcall CircleAreaB()
{
//AnsiString s=r;
AnsiString s="你好,这是一个密码字符串password";
return s.c_str();
}
[DllImport("testdll.dll", EntryPoint = "CircleAreaB")]
public static extern string CircleAreaB();
private void button3_Click(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder(CircleAreaB(), 32);
MessageBox.Show(sb.ToString());
}