DspGetAnCur
Gets the AN of the current graphics object. This function should only be used by expressions or Cicode functions called from the condition fields of a graphics object, excluding input/command fields. If you need to know the AN that triggered the input/command, the KeyGetCursor function may be used as it returns the AN where the cursor is currently positioned.
You cannot call this function from the Button or Keyboard forms.
Syntax
DspGetAnCur()
Return Value
The AN associated with the current graphics object. If this function is called outside the page animation system or from an input/command field, -1 will be returned.
Example
|
Numbers |
|
|
AN |
20 |
|
Expression |
MyFunc(PV_10) |
|
Comment |
Display the value of PV_10 at AN20 |
/* Function displays a number at the current AN and returns the value supplied in the call */
INT
FUNCTION
MyFunc(INT value)
INT AN, hNew;
AN = DspGetAnCur();
hNew = DspAnNewRel(AN, 0, 20);
DspStr(hNew, "Default", VALUE:###.#);
RETURN value;
END
See Also