integrating C++ codes in Labwindows

[Nghtcrwlr]

I dont understand what you meant. sry."different declarations of your function"??? But the whole prgrm in the "square.c" worked successfully as a seperate win32 console application.

sry for the hard to read attachment. u could see it better if you download n open n zoom&view.

[Wolfgang]

1) in square.h you have a function square ( double x);

2) in square.c your function is square ( int argc, char * argv [] )

Obviously this is the same function name but with different parameters...

Probably in your C code it should read main () instead of square ()...

[Nghtcrwlr]

Does that mean i have to change

 double square(int argc, char* argv[]);------>  main(double x);

in square.c file??

[Wolfgang]

just to remind you: this is a forum on CVI, not on learning C. Once in a while you might want to consult your C book or the link I've posted earlier...

This said, if you are trying to compile a program, you will need a main (int argc, char* argv[]).

Within this main, you may call functions such as your square ( ).

[Nghtcrwlr]

ok... sorry for the inconvienence. I ll now try to figure it out by brushing up my C knowledge...

thankyou vry much

[Nghtcrwlr]

I tried to modfiy it. Now the compiling is ok. But when i call the function squaren in the main program, there comes error in egtting value from the control. I need to get values of period and amplitude from the uir control. I use the following command for it:

double *pt_p;
		double *pt_a;
		pt_p = &p;
		pt_a = &a;

		GetCtrlVal ( panelHandle, PANEL_NUMERIC_2, pt_p );

		GetCtrlVal ( panelHandle, PANEL_NUMERIC_1, pt_a );

		//double x;
		// Period and amplitude.
		const double period = (p/2);
		double amplitude = a ;

pt_p,pt_a are the values obtained from uir control and they are assigned to p and a . Is that correct???