Message Formatting380 Gryphon™ I GD4100/GM4100• If you want to control the Scanner's beeper from the host, you will also probably want todisable the good transmission beep that is emitted when the code is received from the cra-dle. (See RF Beeper Features on page 154).The message field can store plain text and escape sequences.• Escape sequences are interpreted as commands.• Plain text is directly printed on the display. If writing beyond the end of line, the displaydoes not wrap automatically. Extra characters are ignored. Control characters are notinterpreted (i.e. LF, FF, etc.).Cursor ControlNOTES:• Since CR is used as the message terminator, you must use ESC [ G or ESC E to print aCR.• The cursor row position is not affected by the currently selected font. The display alwayshas 4 rows, so when writing with the large font, actually two rows are written to: the cur-rent one and the one below it. You will need two ESC E commands to step from one rowto the next when using the large font.• The cursor column position is affected by the currently selected font. Therefore, column6 is 36 pixels from the left border only if you last selected the 6x8 font; otherwise it couldbe 48 or 72 pixels from the left border.Font SelectionESC [ n A Up n rows, no scrollESC [ n B Down n rows, no scrollESC [ n C Right n columnsESC [ n D Left n columnsESC [ G CRESC [ r ; c H Move to row r , column c (ESC[1;1H is the upper leftcharacter position of the display)ESC D Down 1 row, with scrollESC E CR and cursor down 1 row with scrollESC M Up 1 row and scrollESC [ 0 m Normal modeESC [ 7 m Reverse modeESC # 4 Large font: subsequent characters are written on the current rowand the row below it using the 12x16 font which allows for tworows of eight characters on the display.ESC # 5 Normal font: subsequent characters are written using the 6x8 font,which allows for four rows of sixteen characters on the display.ESC # 7 Medium font: subsequent characters are written using the 8x8font, which allows for 4 rows of 12 characters on the display.
