Rabbit OP7100 User Manual download pdf (Page 57)

OP7100 Software

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• void op71BrdOff485( void );

Disables the OP7100's RS-485 driver.

• void op71BrdOn485( void );

Enables the OP7100's RS-485 driver.

• void op71Beep( int onOff );

Controls the OP7100's beeper.

PARAMETER: onOff is non-zero to beep, zero to stop beep.

• void op71BuffLock( void );

Increments the OP7100 LCD screen locking counter. Graphics calls are

recorded in the LCD memory buffer, but are not transferred to the LCD

if the counter is non-zero.

op71BuffLock() and op71BuffUnlock() can be nested up to a

level of 255, but be sure to balance the calls. It is not a requirement to

use these procedures, but a set of op71BuffLock and

op71BuffUnlock bracketing a set of related graphics calls speeds up

the rendering significantly.

• void op71BuffUnlock( void );

Decrements the OP7100 LCD screen locking counter. The contents of

the LCD buffer are transferred to the LCD if the counter goes to zero.

• void op71SetBrushType( int type );

Sets the drawing method (or color) of pixels drawn by subsequent

graphics calls.

PARAMETER: type can be one of the following:

SET or OP71BLACK draws black pixels

CLEAR or OP71WHITE draws white pixels

XOR or OP71XOR draws “oldPixel xor newPixel” pixels

BLOCK or OP71BLACK draws black pixels

• int op71GetBrushType( void );

Gets the current method (or color) of pixels drawn by subsequent

graphics calls.

RETURN: The current brush type.

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Rabbit OP7100 User Manual Page 57