Getting control string

I have a control of the chain in the IUR. It is entered by the user. (something like a path).

How can I get the path of the user has entered and use it as a path to save a file?  I did something like that... is this correct?

The control named constant STRING_2.  I try to get the value of this control and assign it to a pt_s value.

Any1 can help?

double *pt_s;
pt_s = &s;
GetCtrlVal ( panelHandle, PANEL_STRING_2, pt_s );
int w;
FILE *OutFile = fopen("pt_p","w");
fprintf(OutFile,"This is a test to open,write and save something to a sig file");
fclose(OutFile);

Use

FILE * OutFile = fopen (string, "w");

The name of the file is the first argument to the function, when you use

FILE * OutFile = fopen ("string.txt", "w");

you say fopen() to create a file named string.txt

There is no reason for the line

int w;

in your code.  The 'w' in the argument of the fopen() function is also a string.

You can find a tutorial of C.

Tags: NI Software

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