argc argv any real point

This is a discussion on argc argv any real point within the C Programming forums, part of the General Programming Boards category; ok guys I can see the importance of argv and argc in dos but seen as how most people will ...

  1. #1
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    argc argv any real point

    ok guys I can see the importance of argv and argc in dos but seen as how most people will click on an icon to run a prog and when the prog is running input goes straight to that prog avoiding the command line is there are real use for these functions today as I'm not sure how long windows will ship with dos or even if it still does.

    thanks for the guidence.

  2. #2
    &TH of undefined behavior Fordy's Avatar
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    Full blown Windows Apps still take arguments.....

    When you double click a .txt file, the registry looks up ".txt" which points to a key like "txtfile" which then runs the following command

    "notepad.exe %1"

    The "%1" is a string representing the name of the file you clicked.

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    Some applications let you take an application by pointing at it and holding the mouse button down, than dragging it on top of another applications icon. This becomes a command line argument, for example windows media player will let you do this.

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    fordy I know this was yesterday but still got problems with the system() function.

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    &TH of undefined behavior Fordy's Avatar
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    >>fordy I know this was yesterday but still got problems with the system() function.

    Oh....still aint working??

    Post your code, tell me what your OS is and exactly how you are excecuting it....

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    #include<stdlib.h>
    #include<conio.h>

    int main()
    {
    system("dir");
    system("dir c:\\");
    system("dir c:\\*.txt);

    /* non of these work */

    getch();
    return 0;
    }
    not running from the command prompt but straight from the compiler.


    borland compiler dos prog running on win 95.

  7. #7
    &TH of undefined behavior Fordy's Avatar
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    Right, do this.

    Code:
    command
    Type that into notepad and save as dos.bat. Copy it into the same folder as your .exe file. Double click and a dos console will appear. Type in the name of your program and press enter....you should now see the results.

    Dont fear the command prompt....... I never use getch() to keep the console open...I much prefer the command prompt and it avoids bloopers like this

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    ok done that but comes back with bad command of filename

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    &TH of undefined behavior Fordy's Avatar
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    Make sure that the excecutable is in the same directory as the bat file you are running in.....


    If your executable is myprog.exe, type myprog onto the commandline

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    ok. the .exe is in the same direcrory as the .bat file
    still comes back with bad command or filename.

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