[Dev-C++] newbie haze!?

[Yohaan H. <jsh...@ho...>]

I am still learning C++ as well as the Dev-Cpp program. I got a little bit 
confused at the beginning and am now able to perhaps ask the right 
questions.

the first rather simple one is how would i call a second cpp program from 
the first? as in if (a=1) then open second program?

the second regarding the main.c program

hwnd = CreateWindowEx(
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           "Windows Example",         /* Title Text */
           WS_OVERLAPPEDWINDOW, /* defaultwindow */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window end up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a childwindow to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );

where NULL is what would i use to state that their is Window Creation data 
would this qualify as a call to a second program?

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