Lanner electronic FW-7890 - Manual (Page 52)

2.Read_KeyPad();
=>This Function get the KeyPad number if user pressed key.
=>Direct write function to your program.
Ex.
int a;
a=Read_KeyPad();
Return Value: "1"=>The Upper Key
"2"=>The Down Key
"3"=>The Enter Key
"4"=>The ESC Key
3.Show_Data(int Dp_Type1,int Dp_Type2,int Dp_Type3,int Dp_Type4, char *Showdata1, char
*Showdata2);
=>Show string Function.
=>Dp_type1 => Entry Mode Set
=>Dp_type2 => Display On/Off
=>Dp_type3 => Shift
=>Dp_type4 => Set Function
Please refer the Data Sheet about LCM and Use Decimal to input
=>Showdata1 & Showdata2 are the strings that you want to show.
=>Showdata1 Shown on Line1 Limited between 20 Character
=>Showdata2 Shown on Line2 Limited between 20 Character
Ex.
Show_data(0,15,0,56,"1234","5678");