問題大致是這樣，我有個MFC的exe檔案，例如A.exe 我現在需要通過A.exe 來執行外部的一個B.exe 檔案,
如圖 B.exe:
B.exe是個第三方的一個應用軟體，類似CMD界面，可以輸入命令列來執行指令。
現在我想通過A.exe 來向B.exe 輸入命令列指令，這個要如何才能做到呢？是匿名管道嗎？還是什么方法，向各位大神請教!
uj5u.com熱心網友回復：
ShellExecute WinExec CreateProcessuj5u.com熱心網友回復：
https://blog.csdn.net/u012442719/article/details/55261051uj5u.com熱心網友回復：
現在我想通過MFC的來向子行程輸入指令，需要得到子行程執行指令的結果，這個如何來實作？
uj5u.com熱心網友回復：
僅供參考：#pragma comment(lib,"user32")
#include <stdio.h>
#include <string.h>
#include <windows.h>
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.lpSecurityDescriptor = NULL;
// Create pipe for standard output redirection.
CreatePipe(&hPipeOutputRead, // read handle
&hPipeOutputWrite, // write handle
&sa, // security attributes
0 // number of bytes reserved for pipe - 0 default
);
// Create pipe for standard input redirection.
CreatePipe(&hPipeInputRead, // read handle
&hPipeInputWrite, // write handle
&sa, // security attributes
0 // number of bytes reserved for pipe - 0 default
);
// Make 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, &pi);
// Now that handles have been inherited, close it to be safe.
// You don't want to read or write to them accidentally.
CloseHandle(hPipeOutputWrite);
CloseHandle(hPipeInputRead);
// Now test to capture DOS application output by reading
// hPipeOutputRead. Could also write 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), // number of bytes to write
&dwNumberOfBytesWrite,// address of number of bytes read
NULL // non-overlapped.
);
while(TRUE)
{
bTest=ReadFile(
hPipeOutputRead, // handle of the read end of our pipe
&szBuffer, // address of buffer that receives data
256, // number of bytes to read
&dwNumberOfBytesRead, // address of number of bytes read
NULL // non-overlapped.
);
if (!bTest){
sprintf(szMsg, "Error #%d reading pipe.",GetLastError());
printf("%s",szMsg);
break;
}
// do something with data.
szBuffer[dwNumberOfBytesRead] = 0; // null terminate
printf("%s",szBuffer);
if ('>'==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), // number of bytes to write
&dwNumberOfBytesWrite,// address of number of bytes read
NULL // non-overlapped.
);
while(TRUE)
{
bTest=ReadFile(
hPipeOutputRead, // handle of the read end of our pipe
&szBuffer, // address of buffer that receives data
256, // number of bytes to read
&dwNumberOfBytesRead, // address of number of bytes read
NULL // non-overlapped.
);
if (!bTest){
sprintf(szMsg, "Error #%d reading pipe.",GetLastError());
printf("%s",szMsg);
break;
}
// do something with data.
szBuffer[dwNumberOfBytesRead] = 0; // null terminate
printf("%s",szBuffer);
}
// Wait for CONSPAWN to finish.
WaitForSingleObject (pi.hProcess, INFINITE);
// Close all remaining handles
CloseHandle (pi.hProcess);
CloseHandle (hPipeOutputRead);
CloseHandle (hPipeInputWrite);
return 0;
}
//C:\test>test
//Microsoft Windows [版本 5.2.3790]
//(C) 著作權所有 1985-2003 Microsoft Corp.
//
//C:\test>ver
//
//Microsoft Windows [版本 5.2.3790]
//
//C:\test>chcp
//活動的代碼頁: 936
//
//C:\test>exit
//Error #109 reading pipe.
//C:\test>
uj5u.com熱心網友回復：
CreateProcess (
_T("C:\\Windows\\System32\\cmd.exe"),NULL,
NULL, NULL,
TRUE, 0,
NULL, NULL,
&si, &pi);
我把創建行程改成這樣會報錯，這是為啥！
uj5u.com熱心網友回復：
CreateProcessThe CreateProcess function creates a new process and its primary thread. The new process executes the specified executable file.
BOOL CreateProcess(
LPCTSTR lpApplicationName,
// pointer to name of executable module
LPTSTR lpCommandLine, // pointer to command line string
LPSECURITY_ATTRIBUTES lpProcessAttributes, // process security attributes
LPSECURITY_ATTRIBUTES lpThreadAttributes, // thread security attributes
BOOL bInheritHandles, // handle inheritance flag
DWORD dwCreationFlags, // creation flags
LPVOID lpEnvironment, // pointer to new environment block
LPCTSTR lpCurrentDirectory, // pointer to current directory name
LPSTARTUPINFO lpStartupInfo, // pointer to STARTUPINFO
LPPROCESS_INFORMATION lpProcessInformation // pointer to PROCESS_INFORMATION
);
Parameters
lpApplicationName
Pointer to a null-terminated string that specifies the module to execute.
The string can specify the full path and filename of the module to execute or it can specify a partial name. In the case of a partial name, the function uses the current drive and current directory to complete the specification.
The lpApplicationName parameter can be NULL. In that case, the module name must be the first white space-delimited token in the lpCommandLine string. If you are using a long filename that contains a space, use quoted strings to indicate where the filename ends and the arguments begin, otherwise, the filename is ambiguous. For example, consider the string "c:\program files\sub dir\program name". This string can be interpreted in a number of ways. The system tries the possibilities in the following order:
c:\program.exe files\sub dir\program name
c:\program files\sub.exe dir\program name
c:\program files\sub dir\program.exe name
c:\program files\sub dir\program name.exe
The specified module can be a Win32-based application. It can be some other type of module (for example, MS-DOS or OS/2) if the appropriate subsystem is available on the local computer.
Windows NT: If the executable module is a 16-bit application, lpApplicationName should be NULL, and the string pointed to by lpCommandLine should specify the executable module. A 16-bit application is one that executes as a VDM or WOW process.
lpCommandLine
Pointer to a null-terminated string that specifies the command line to execute. The system adds a null character to the command line, trimming the string if necessary, to indicate which file was actually used.
The lpCommandLine parameter can be NULL. In that case, the function uses the string pointed to by lpApplicationName as the command line.
If both lpApplicationName and lpCommandLine are non-NULL, *lpApplicationName specifies the module to execute, and *lpCommandLine specifies the command line. The new process can use GetCommandLine to retrieve the entire command line. C runtime processes can use the argc and argv arguments.
If lpApplicationName is NULL, the first white space-delimited token of the command line specifies the module name. If you are using a long filename that contains a space, use quoted strings to indicate where the filename ends and the arguments begin (see the explanation for the lpApplicationName parameter). If the filename does not contain an extension, .EXE is assumed. If the filename ends in a period (.) with no extension, or the filename contains a path, .EXE is not appended. If the filename does not contain a directory path, the system searches for the executable file in the following sequence:
The directory from which the application loaded.
The current directory for the parent process.
Windows 95 and Windows 98: The Windows system directory. Use theGetSystemDirectory function to get the path of this directory.
Windows NT: The 32-bit Windows system directory. Use the GetSystemDirectory function to get the path of this directory. The name of this directory is SYSTEM32.
Windows NT: The 16-bit Windows system directory. There is no Win32 function that obtains the path of this directory, but it is searched. The name of this directory is SYSTEM.
The Windows directory. Use theGetWindowsDirectory function to get the path of this directory.
The directories that are listed in the PATH environment variable.
If the process to be created is an MS-DOS - based or 16-bit Windows-based application, lpCommandLine should be a full command line in which the first element is the application name. Because this also works well for Win32-based applications, it is the most robust way to set lpCommandLine.
uj5u.com熱心網友回復：
FindWindow找到HWND, 發送鍵盤訊息過去
uj5u.com熱心網友回復：
能否具體點嗎？那如何得到執行指令后的結果呢？
uj5u.com熱心網友回復：
CreateProcess的第二個引數是lpCommandLine，這個就是你要的命令列uj5u.com熱心網友回復：
用訊息模擬鍵盤輸入 speed 1000 > xxx.txt
然后你再讀這個 xxx.txt 檔案就好了, 尖括號我忘了是一個還是兩個的
uj5u.com熱心網友回復：
有很多方法可以實作，比方你說的匿名管道轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/62478.html
標籤：基礎類