Creating special fonts on character LCD with printf

[KL]

I'm using a character LCD and would like to display an upward and downward arrow font on the LCD to indicate press the up or down key. In reviewing the LCD manufacturers document it appears I need to send 0x18 for the up arrow font and 0x19 for the down arrow font. I typically have just used the printf function to send ASCII text to the display. Could someone explain what I need to do to send these commands to the display to generate these fonts.

Thank you,

[Wayne_]

You have several options, the 2 I would use are

1) printf("\x17"); and printf("\x18);

2) printf("%c", 0x17); and printf("%c", 0x18);

[Guest]

Thank you,

That takes care of it.