FYI "Example" is a dead link. Always the drawback when specifying links. Maybe it is just my failing eyesight then — AndersK. Not dead in the sense that it doesnt lead anywhere, dead in the sense that it doesnt actually show an example.
Generic; using System. Linq; using System. Text; using System. Maximized; ExternalProcess. Start ; ExternalProcess. Ramakrishnan Ramakrishnan 4, 9 9 gold badges 31 31 silver badges 40 40 bronze badges. Start "notepad. Start "calc. Incognito Incognito Sign up or log in Sign up using Google. Here however, the program only responds when I talk to it from the command line.
I can't start a debug session, since that will first fully start the program. And due to the nature of the program, it will shut itself because there were no command-line arguments.
That is an example of how this program is adressed. The command, -help, is given in the same line that the program is started. In other words, I cannot first start the program, and then give it a command while it's running It'll start, see that it had no arguments on startup, and because of that, shut down.
That's how a command-line tool works. In the Project properties, under Debug, you can enter any Command Line Arguments you would like, and then run the app with F5, the debugger will be attached automatically. You could add a call to Debugger. Launch to your startup code. Then you can compile, and start your app from the command line. You'll get a prompt asking you which debugger you want to attach typically this will be a list of the different versions of Visual Studio you have installed , and away you go.
If that's not working for you, you should figure out why. You can use Visual Studio to attach a debugger to the command line application, once it is under way with the correct arguments. I'm not sure if your application will terminate quickly or give you any opportunity to attach the debugger, but if it will, this should work. You just need to add a breakpoint to the first line of the main function you can do this by clicking on the line in the Visual Studio editor and hitting F9 and hit F5 to start a debug session.
Double-click the Value column in the Watch window and set it to whatever you want it to be. This has the advantage over setting the parameter in the Debug tab of the Properties window by allowing different parameters for each run without having to return to the Properties window. When you have command line arguments then you need to follow different route to debug. Go to project and then select properties. There you will see debug section and then give required parameters.
Usually you determine whether arguments exist by testing the Length property, for example:. The args array can't be null. So, it's safe to access the Length property without null checking. You can also convert the string arguments to numeric types by using the Convert class or the Parse method. For example, the following statement converts the string to a long number by using the Parse method:. You can also use the Convert class method ToInt64 to do the same thing:.
For more information, see Parse and Convert. The following example shows how to use command-line arguments in a console application. The application takes one argument at run time, converts the argument to an integer, and calculates the factorial of the number. If no arguments are supplied, the application issues a message that explains the correct usage of the program.
Paste the following code into any text editor, and then save the file as a text file with the name Factorial. From the Start screen or Start menu, open a Visual Studio Developer Command Prompt window, and then navigate to the folder that contains the file that you created. If your application has no compilation errors, an executable file that's named Factorial. When running an application in Visual Studio, you can specify command-line arguments in the Debug Page, Project Designer.
For more information, see the C Language Specification. The language specification is the definitive source for C syntax and usage. Skip to main content. Start to call the "cmd. To hidden the command prompt during the executing, you need create the ProcessStartInfo using "cmd" as the program to be run, hidden the command processing window, and do not create the black window.
Sometimes, you maybe need start a new process with elevated permissions by setting the Verb property of your startInfo object, you need set "runas" to make this process run with elevated privileges, run as administrator. If you want to get both std output and error message while executing command line in C , please view the following a comprehensive example.
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