TouchPanelSetCalibration (Compact 2013)
3/26/2014
This function sets the calibration information that the TouchPanelCalibrateAPoint function uses to calibrate a touch point.
Syntax
VOID TouchPanelSetCalibration(
INT32 cCalibrationPoints,
INT32* pScreenXBuffer,
INT32* pScreenYBuffer,
INT32* pUncalXBuffer,
INT32* pUncalYBuffer
);
Parameters
- cCalibrationPoints
[in] Integer indicating the number of calibration points.
- pScreenXBuffer
[out] Array of screen x coordinates displayed.
- pScreenYBuffer
[out] Array of screen y coordinates displayed.
- pUncalXBuffer
[out] Array of x coordinates collected.
- pUncalYBuffer
[out] Array of y coordinates collected.
Return Value
None.
Remarks
This is the two-dimensional version of the transform. A simpler one-dimensional transform is in the touch driver model device driver (MDD) code. Use the preprocessor variable TWO_DIMENSIONAL_CALIBRATION to select which transform to use.
The two-dimensional version is more complicated but more accurate because it does not assume independent x and y values.
Requirements
Header |
tchddi.h |
Library |
tchproxy.dll |