Rif.: getting label.value from ring control

[ammukrish]

Hi,

I want to read the the text of the selected index in the ring control. Assume i have 5 different values(ONE,TWO,THREE,FOUR,FIVE) in my ring control, if i am selecting 3rd value THREE has to be stored in my char variable. If i select 2nd value is has to return TWO...

Can someone suggest...

[RobertoBozzolo]

GetCtrlIndex + GetLabelFromIndex is the way I normally use for this.

[ammukrish · Accepted solution]

Works Perfect.

Thanks Roberto

[ChicoBitao]

Hello All,

do you know how to get values of a ring with double values ?

GetCtrlIndex returns an Integer : ok

GetCtrlValue requires an integer ???

[Ring type]: double

[precision]: 9                                            (0.000000000)

[Label]                           [Value]

Vaccum                      0.000005212

Air                               1.54856000

Glass                          3.55552500

Thanks in avance for your time.

[RobertoBozzolo]

A bit of digging in the function tree would return GetValueFromIndex function. You will need to pass the pointer to a double variable to retrieve the correct value.

[ChicoBitao]

Oy Roberto,

thanks for advice.

Unfortunately the function requires à int value, the value in the ring is declared as double.

Somgthing wrong, in the use of this function?

int mode;
double valueB; 
.....

            GetCtrlIndex (pMaterials,MATERIALS_RINGMAT,&mode);   
            GetValueFromIndex (pMaterials, MATERIALS_RINGMAT, mode, &valueB);

Grazie mille !!

[RobertoBozzolo]

GetIndexFromValue can treat whichever data type you want: the function evaluates at runtime the variables passed to it and throws an error in case of mismatch between actual control's data type and variable type. That is to say: either the ring control is customized for integers or the function is pointing to a different control than expected. May the panel handle refer to a wrong panel?

[ChicoBitao]

May the panel handle refer to a wrong panel?

Right Roberto, pointing to an old version of one *.uir file !!!!

! Thanks for sharing your expertise with casual CVI users.

Grazie mille.

VR

[RobertoBozzolo]

Glad to have helped you.

To address this kind of problems I normally have some macros pointing to the correct .UIR files:

#define   UIRA   "myUIR_A.UIR"
#define   UIRB   "myUIR_B.UIR"

Later in the code I use the macros instead of actual .UIR filename:

panelHandle = LoadPanel (UIRA, ..., ...);

This way to update an .UIR to a new version I have only to change the macro (and the associated #include) without need to revise all the calls in the code.