'How to get the command line arguments in MFC applications?
I wish to have a small dialog based application which is passed command line parameters, so, using VC++6 I ran the application wizard and chose an MFC dialog application.
This is not automatically equipped with command-line parameters. So I went to MSDN to refresh my memory on these. MSDN states that all C++ programs have either a main() or a wmain() function and that the argc, etc. arguments go here. The application I just created does not have these.
As there is obviously a function which is the entry point to the application, can I stick the arguments here? I did try this, but I am not convinced that I was actually editing the correct function. (Can I find the function which is acting as the main() function from the project settings or similar?)
Basically, how do I get my program to read command line parameters.
Also as a sideline. For a simple program, which this is, I really do not want to make it an MFC application, and thereby over a MB in size. Are there application wizard template libraries that will allow me to make a non-MFC dialog application?
Solution 1:[1]
Yes, see CWinApp:ParseCommandLine. Also take a look at the CCommandLineInfo class.
Solution 2:[2]
In MFC applications, the entry point function is 'initInstance()', like main() or wmain(). Use CWinApp::m_lpCmdLine in initInstance() to access the command line.
Solution 3:[3]
To get the raw command line use the following code (will work on any Win32 / MFC application):
TCHAR *pCommandLine = ::GetCommandLine();
int nArgc = 0;
LPWSTR *pArgv = ::CommandLineToArgvW(pCommandLine, &nArgc);
nArgc should be 1 when no arguments given and larger than 1 when there are. Then, pArgv[1] will be the first argument, and so on...
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Marius Bancila |
| Solution 2 | Peter Mortensen |
| Solution 3 |