DLL main 函数注意事项 switch

switch (ul_reason_for_call){case DLL_PROCESS_ATTACH:{LPCWSTR pcw = L"DLL_PROCESS_ATTACH";GetChu::udpclient.Send((PVOID)pcw,wcslen(pcw)*2+2);getchu.Start();break;}case DLL_THREAD_ATTACH:break;case DLL_THREAD_DETACH:break;case DLL_PROCESS_DETACH:{LPCWSTR pcw = L"ProcessDetach";GetChu::udpclient.Send((PVOID)pcw,wcslen(pcw)*2+2);getchu.Close();ShowNumber(1);break;}}

注意vc 默认是所有的case都放在一起的,必须每一个都break,否则DLL_PROCESS_DETACH里面会响应 DLL_PROCESS_ATTACH,DLL_THREAD_ATTACH,......等等的消息

因为switch语法的关系