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分享MFC有没有一个函数可以接受两个参数作为系统参数（编译器中的program arguments)
问题是这样的，我的MFC界面要调用一个FORTRAN动态库，而这个动态库所读取的文件需要在程序参数（编译器中的program arguments)中读取。我的解决办法是：通过DOS运行界面，写出两个参数和该exe，然后运行软件可以接受这两个参数。可是这个办法总感觉太笨。所以问题来了，MFC有没有一个函数可以接受这两个参数作为系统参数？这样我就不需要重新打开EXE，便可以成功调用这个FORTRAN动态库。求大神指点。
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赵4老师 2014-11-21
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CreateProcess
The 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
);
...
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.
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赵4老师 2014-11-21
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SetCurrentDirectory
The SetCurrentDirectory function changes the current directory for the current process.
BOOL SetCurrentDirectory(
LPCTSTR lpPathName // pointer to name of new current directory
);
Parameters
lpPathName
Pointer to a null-terminated string that specifies the path to the new current directory. This parameter may be a relative path or a fully qualified path. In either case, the fully qualified path of the specified directory is calculated and stored as the current directory.
Return Values
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Remarks
Each process has a single current directory made up of two parts:
A disk designator that is either a drive letter followed by a colon, or a server name and share name (\\servername\sharename)
A directory on the disk designator
QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Import Library: Use kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows NT.
See Also
File I/O Overview, File Functions, GetCurrentDirectory
赵4老师 2014-11-21
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GetCommandLine
The GetCommandLine function returns a pointer to the command-line string for the current process.
LPTSTR GetCommandLine(VOID)
Parameters
This function has no parameters.
Return Values
The return value is a pointer to the command-line string for the current process.
Remarks
ANSI console processes written in C can use the argc and argv arguments of the main function to access the command-line arguments. ANSI GUI applications can use the lpCmdLine parameter of the WinMain function to access the command-line string, excluding the program name. The reason that main and WinMain cannot return Unicode strings is that argc, argv, and lpCmdLine use the LPSTR data type for parameters, not the LPTSTR data type. The GetCommandLine function can be used to access Unicode strings, because it uses the LPTSTR data type.
QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Import Library: Use kernel32.lib.
Unicode: Implemented as Unicode and ANSI versions on Windows and Windows NT.
See Also
Processes and Threads Overview, Process and Thread Functions, CreateProcess,WinMain
shen_wei 2014-11-21
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参数需要原来的exe读取文件来确定,，
那你的需要创建进程来获取这个exe确定的参数了。。。
参考 ：VC++实现CMD命令执行与获得返回信息
pqiankun 2014-11-21
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我的理解是ShellExecute可以用于打开另外一个应用程序，使另外一个应用程序获得该运行参数，那本来的exe怎么获得呢？我的参数需要原来的exe读取文件来确定，要用ShellExecute，是不是要关掉原先的exe呢？
pqiankun 2014-11-21
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是运行参数，不过这个参数，需要在MFC中打开文件选择后才可以确定，请问用什么函数可以接受？求具体函数
shen_wei 2014-11-21
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ShellExecute 可以只带参数
笨笨仔 2014-11-21
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指的是 运行参数？MFC程序可以带参数运行的。
pqiankun 2014-11-21
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这个我看了，我就是用这个方法实现的。通过原先exe找到参数，然后重新打开新的exe。但这不是我想要的，我想知道，再不毁坏原先的exe的基础上，能不能让该exe获得运行参数，不要创建新的exe。谢谢
