Rabbit OP7100 User Manual download pdf (Page 115)

User’s Manual 109

Reads the current x,y coordinates of the touchscreen

PARAMETERS

xkey is a pointer to the x coordinate

ykey is a pointer to the y coordinate

mode is the mode of operation:

0 (RAW_MODE)—raw mode, returns touchscreen x, y coordinate's true raw data value

1 (CAL_MODE)—calibration mode, returns touchscreen x, y coordinates as normalized data values to

match the LCD display resolution

SEE ALSO

TsActive, TsScanState, TsXYBuffer, brdInit

This function returns the status of whether the touchscreen is being pressed or touched.

RETURN VALUE

0—touchscreen is not being pressed

1—touchscreen is being pressed

SEE ALSO

TsXYvector, TsScanState, TsXYBuffer, brdInit

This function processes the current state of the touchscreen. The results can then be read with the

TsXYBuffer function, which will return one of the following.

1. The current x,y location of where the touchscreen is being pressed

2. A value indicating that the touchscreen press has ended

3. A value of -1 to indicate no activity has occurred

NOTE: When this function is called, the information should be processed before calling

this function again to avoid losing the information.

SEE ALSO

TsXYvector, TsActive, TsXYBuffer, brdInit

void TsXYvector(int *xkey, int *ykey, int mode);

int TsActive(void);

void TsScanState(void);

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