Help: To compare values in CVI?

[avalosro]

Hi

Please help my question:

compare if a value is >, =>, <, or <= in CVI????.  

for example:

V1 = 10

V2 = 5

if V2 => 10 Show MessagePopup ("MSG", "Aouchh if <  ");

Or

V1 = 19

If V1 <=20  Show MessagePopup ("MSG", " Oks if  <");

One example please!!!!!.

[Oliveira]

If I understood you, it is simple.

if ( v2 >= 10 ) {
MessagePopup ("MSG", "Aouchh if <  ");
}

if ( V1 <=20 ) {
 MessagePopup ("MSG", " Oks if  <");
}


See ya

[avalosro]

This type code failure, show error to compare values.

on this msg add my example for you help

Thanks

[Oliveira]

Are you trying to compare a String to a double?

I suggest you to use a numeric data type to input the value that you want. There is an option to you choose the right data type. Or you can use a pointer to char and then convert the String to a double using atof command before to compare.

[avalosro]

Ok thanks, with your help my problem was resolved using this code:

using Variable double V1;

__________________________________________

void COMPARE (void)
{
 
 GetCtrlVal (PANEL, PANEL_STRING, V2);
 V1= atof(V2);
  
  if (V1>=2.7)MessagePopup ("MSG", "Result is good, is = or >");
 return;
}

___________________________________________

Mensaje editado por avalosro