比如,我要用regsvr32.exe注册某个程序或dll。命令行执行时会得到windows给的通知(以twain_32.dll为例):“twain_32.dll was loaded, but the DllRegisterServer entry point was not found.\n\nDllRegisterServer may not be exported, or a corrupt version of twain_32.dll may be in memory. Consider using PView to detect and Remove it.”。
现在我希望得到这个通知字符串,有什么办法吗?
现在我希望得到这个通知字符串,有什么办法吗?
BOOL ExecDosCmd()
{
SECURITY_ATTRIBUTES sa;
HANDLE hRead,hWrite;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
if (!CreatePipe(&hRead,&hWrite,&sa,0))
{
return FALSE;
}
STARTUPINFO si;
PROCESS_INFORMATION pi;
si.cb = sizeof(STARTUPINFO);
GetStartupInfo(&si);
si.hStdError = hWrite;
si.hStdOutput = hWrite;
si.wShowWindow = SW_HIDE;
si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
//关键步骤,CreateProcess函数参数意义请查阅MSDN
if (!CreateProcess(NULL, EXECDOSCMD
,NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi))
{
return FALSE;
}
CloseHandle(hWrite);
char buffer[4096] = {0};
DWORD bytesRead;
while (true)
{
if (ReadFile(hRead,buffer,4095,&bytesRead,NULL) == NULL)
break;
//buffer中就是执行的结果,可以保存到文本,也可以直接输出
printf(buffer);
Sleep(200);
}
return TRUE;
}