MFC how to input command to the external exe, and returns the result-CodePudding

Question is roughly like this, I have a MFC exe files, for example, A.e xe I need by now A.e xe to perform an outer B.e xe file,
As shown in figure B.e xe:

B.e xe is a third party of an application, similar to the CMD interface, you can enter the command line to execute instructions,
Now I want to by A.e xe to B.e xe input command line instruction, how to do this? Anonymous pipe is? Or what method, I ask you a great god!

CodePudding user response:

ShellExecute WinExec CreateProcess

CodePudding user response:

https://blog.csdn.net/u012442719/article/details/55261051

CodePudding user response:

refer to the second floor chengbar response:

https://blog.csdn.net/u012442719/article/details/55261051

Now I want to through the MFC to the child to enter commands, need to get the child as a result, to carry out the instructions how to implement this?

CodePudding user response:

Fyi:

 # pragma comment (lib, "user32") 
#include  
#include  
#include  
Int main () {
SECURITY_ATTRIBUTES sa={0}; 
STARTUPINFO si={0}; 
PROCESS_INFORMATION PI={0}; 
HANDLE hPipeOutputRead=NULL; 
HANDLE hPipeOutputWrite=NULL; 
HANDLE hPipeInputRead=NULL; 
HANDLE hPipeInputWrite=NULL; 
BOOL bTest=0; 
DWORD dwNumberOfBytesRead=0; 
DWORD dwNumberOfBytesWrite=0; 
CHAR szMsg [100]. 
CHAR szBuffer [256]. 

Sa. NLength=sizeof (sa); 
Sa. BInheritHandle=TRUE; 
Sa. The lpSecurityDescriptor=NULL; 

//Create pipe for standard output redirection. 
The CreatePipe (& amp; HPipeOutputRead,//read handle 
& HPipeOutputWrite,//write handle 
& Sa,//security attributes 
0//number of bytes reserved for pipe - 0, the default 
); 

//Create pipe for standard input redirection. 
The CreatePipe (& amp; HPipeInputRead,//read handle 
& HPipeInputWrite,//write handle 
& Sa,//security attributes 
0//number of bytes reserved for pipe - 0, the default 
); 

//Make the child process use hPipeOutputWrite as standard out, 
//and make sure it does not show on screen. 
Si. Cb=sizeof (si); 
Si. DwFlags=STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES; 
Si. WShowWindow=SW_HIDE; 
Si. HStdInput=hPipeInputRead; 
Si. HStdOutput=hPipeOutputWrite; 
Si. HStdError=hPipeOutputWrite; 

CreateProcess (
NULL, "CMD. Exe," 
NULL, NULL, 
TRUE, 0, 
NULL, NULL, 
& Si, & amp; PI); 

//Now that handles have had inherited, close it to be safe. 
//You don 't want to read or write to them accidentally. 
The CloseHandle (hPipeOutputWrite); 
The CloseHandle (hPipeInputRead); 

//Now test to capture the DOS application output by reading 
//hPipeOutputRead. Could also write the to DOS application 
//standard input by writing to hPipeInputWrite. 
Sprintf (szMsg, "ver \ n"); 
WriteFile (
HPipeInputWrite,//handle of the write end of our pipe 
& SzMsg,//address of buffer that send data 
Strlen (szMsg),//the number of bytes to write 
& DwNumberOfBytesWrite,//the address of the number of bytes read 
NULL//non - overlapped. 
); 

While (TRUE) 
{
BTest=ReadFile (
HPipeOutputRead,//handle of the read end of our pipe 
& SzBuffer,//the address of the buffer that receives the data 
256,//the number of bytes to read 
& DwNumberOfBytesRead,//the address of the number of bytes read 
NULL//non - overlapped. 
); 

if (! BTest) {
Sprintf (szMsg, "pipe. Error # % d reading", GetLastError ()); 
Printf (" % s ", szMsg); 
break; 
} 

//do something with the data. 
SzBuffer [dwNumberOfBytesRead]=0;//null terminate 
Printf (" % s ", szBuffer); 
If (' & gt; '==szBuffer] [dwNumberOfBytesRead - 1) break; 
} 

Sprintf (szMsg, "CHCP \ nexit \ n"); 
WriteFile (
HPipeInputWrite,//handle of the write end of our pipe 
& SzMsg,//address of buffer that send data 
Strlen (szMsg),//the number of bytes to write 
& DwNumberOfBytesWrite,//the address of the number of bytes read 
NULL//non - overlapped. 
); 

While (TRUE) 
{
BTest=ReadFile (
HPipeOutputRead,//handle of the read end of our pipe 
& SzBuffer,//the address of the buffer that receives the data 
256,//the number of bytes to read 
& DwNumberOfBytesRead,//the address of the number of bytes read 
NULL//non - overlapped. 
); 

if (! BTest) {
Sprintf (szMsg, "pipe. Error # % d reading", GetLastError ()); 
Printf (" % s ", szMsg); 
break; 
} 

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