Unitech MR350MKII manual O Function Calls, LCD Display INT 10H, Clear screen, Set cursor type

Chapter 3. I/O Function Calls

3.I/O Function Calls

The operating system of the MR350MKII supports BIOS/DOS Function to control LCD display, Keyboard input, Proximity/Barcode/Magnetic stripe input, Buzzer, Security alarm, Photo-coupler input, Relay output, and serial port input/output of RS232 and RS485. The whole C sample program are gathered into library file "350LIB.C" on Utility Diskette.

3.1.LCD Display INT 10H

00	Clear screen
	Entry Parameters:	AH = 0
	Returned Values:	None

void TL_clrscr()

{

regs.h.ah= 0; int86(0x10,®s,®s);

	}
01	Set cursor type
	Entry Parameters:	AH = 1
		AL = 1	;set Block cursor
		0	;set Underscore cursor
		3	;set cursor off
	Returned Values:	None

void TL_cursor_type(int status)

{

regs.h.ah = 1;

regs.h.al = (unsigned char)status; int86(0x10,®s,®s);

	}
02	Set cursor position
	Entry Parameters:	AH = 2
		DH = 0 ~ 1	;row
		DL = 0 ~ 15	;column
	Returned Values:	None

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