The ID of the card to be read for control parameters.
The ID of the target control parameter buffer (if applicable).
The starting (byte) address for the specified data within the card buffer (if applicable).
The maximum number of bytes to be written.
A pointer to a card-dependent structure (at least size bytes long) that contains the control parameter information for the card.
The address of a string pointer. In case of error (non-zero return), the string pointer is set to the corresponding error description string. The error string is contained in a static buffer and remains valid only until the next API call. The parameter may be NULL if no error string is required.
The integer value 0 if the function was successful, otherwise one of the following error codes:
DR_API_IPC_ERRORS
DR_ERR_DEV_INVALID
DR_ERR_BLK_INVALID
DR_ERR_BLK_OFS_INVALID
DR_ERR_BLK_SIZE_INVALID
DR_ERR_CMD_INVALIDThis function obtains the current card control parameters. The control parameter data is dependent on the card.
cif_ApParms_t control;
if (result = DR_ApReadControl (0, 2, 0, sizeof (cif_ApParms_t),
&control, &error_str))
printf ("Error@ReadControl (%d,%s)\n", result, error_str);
else
{
printf ("Mode = %X, cycleTime = %d, Storage format = %d\n",
control.Mode, control.CycleTime, control.Format);
}