TouchPanelGetDeviceCaps (Compact 2013)

3/26/2014

This function returns information about the capabilities of the touch screen and driver.

Syntax

BOOL TouchPanelGetDeviceCaps(
  INT iIndex,
  LPVOID lpOutput 
);

Parameters

• iIndex
  [in] Integer specifying the type of information to return as shown in the following table.

  iIndex value	Type of information
  TPDC_SAMPLE_RATE_ID	Sample rate.
  TPDC_CALIBRATION_POINT_COUNT_ID	Number of calibration points used for calibration.
  TPDC_DEVICE_TYPE_ID	Type of touch screen (single-touch, symmetric multi-touch, or true multi-touch).
  TPDC_CALIBRATION_POINT_ID	Coordinates, x and y, used for calibration mapping.

• lpOutput
  [out] Pointer to the structure in which to place the requested information. The structure type depends on the setting of iIndex as shown in the following table.

  iIndex value	lpOutput structure
  TPDC_SAMPLE_RATE_ID	TPDC_SAMPLE_RATE
  TPDC_CALIBRATION_POINT_COUNT_ID	TPDC_CALIBRATION_POINT_COUNT
  TPDC_DEVICE_TYPE_ID	TPDC_DEVICE_TYPE
  TPDC_CALIBRATION_POINT_ID	TPDC_CALIBRATION_POINT

Return Value

TRUE indicates success. FALSE indicates failure.

Requirements

Header	tchddi.h
Library	tchproxy.dll

See Also

Reference

Touch Proxy Driver Functions