DevNext

Gets the next record in a device. If the end of the database is reached, the EOF flag is set and an error code is returned.

For SQL devices, this function is a blocking Cicode function.

Syntax

DevNext(hDev)

hDev:

The device handle, returned from the DevOpen function. The device handle identifies the table where all data on the associated device is stored.

Return Value

0 if the next record is read, or an error if the end of the database is reached.

Related Functions

DevEOF, DevPrev

Example

Status=0;

I = 0;

hDev = DevOpen("Log", 0);

WHILE Status = 0 DO

DspText(20 + I, 0, DevGetField(hDev,"Tag"));

I = I + 1;

Status = DevNext(hDev);

END

DevClose(hDev);

See Also

Device Functions