Example 1
In this example, the Formdepth sequence for the AP1340 printer is as follows:
18w27A9(*4n3)
This sequence consists of the parts shown in the following table.
| Part | Function / Description |
|---|---|
| 18 | Hex value for CAN, the Cancel character, which resets the printer. |
| 27 | Hex for ESC, the Escape character, which precedes many printer control sequences. |
| A9 | Hex for z. ESC z denotes the AP1340 Set Form Length command, which must be followed by 3 bytes containing the decimal number of 1/24th-inch increments in the Formdepth. |
| ( | Starts calculation mode, initializing the current work value to Report Formdepth. |
| * | Multiplies the current work value by the following one-digit value. |
| 4 | Multiplies the current work value by 4. In this example, Formdepth in 1/6th-inch units is now expressed in 1/24th-inch units. |
| n | Inserts the current work value into the output at this point, as an alphanumeric string whose length is given by the following 1-digit value. |
| 3 | Outputs the current work value to the printer as three characters. |
| ) | Finishes calculation mode. |
For a 22-line form to be set up, the actual output to a AP1340 printer at the start of the Report is shown in the following table:
| Hexadecimal | Characters |
|---|---|
| 18 | CAN |
| 27A9F0F8F8 | ESC z 0 8 8 |
Example 2
In this example, instead of using n in the formula (as in Example 1), h (or H) can be used to indicate that a hex string is to be repeatedly output a number of times corresponding to the current work value, as shown in the following Formdepth formula example.
(-1h250D)
When Glb.FormDepth is set to 33 (for a 33-line form) in Report logic, this formula would cause the two-character string 250D (equivalent to CR, LF) to be output 32 times in succession (33 minus 1).