TouchPanelSetCalibration (Windows Embedded CE 6.0)

1/6/2010

This function initializes calibration information in a global parameter vCalcParam, which you can use to convert noncalibrated points to calibrated points by the TouchPanelCalibrateAPoint function.

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 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

See Also

Reference

Touch Screen Driver Functions
TouchPanelCalibrateAPoint