DdsiTouchPanelGetDeviceCaps

This function queries capabilities of the touch screen device.

BOOL DdsiTouchPanelGetDeviceCaps(
ULONG iIndex, 
LPVOID lpOutput );

Parameters

  • iIndex
    Specifies one of the following capabilities to query:

    Value Description
    TPDC_SAMPLE_RATE_ID Returns the sample rate.
    TPDC_CALIBRATION_POINT_ID Returns the x and y coordinates of the required calibration point. The index of the calibration point is set in lpOutput->PointNumber.
    TPDC_CALIBRATION_POINT_COUNT_ID Returns the number of calibration points used to calibrate the touch screen.
  • lpOutput
    Pointer to the memory location(s) where the queried information should be placed. The format of the memory referenced depends on the setting of iIndex, as shown in the following table:

    iIndex Value lpOutput Format
    TPDC_SAMPLE_RATE_ID Pointer to a TPDC_SAMPLE_RATE structure.
    TPDC_CALIBRATION_POINT_ID Pointer to a TPDC_CALIBRATION_POINT structure.
    TPDC_CALIBRATION_POINT_COUNT_ID Pointer to a TPDC_CALIBRATION_POINT_COUNT structure.

Return Values

TRUE if successful, FALSE otherwise.

Remarks

This function supports the implementation of the touch screen driver.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 1.0 and later      

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

 Last updated on Tuesday, July 13, 2004

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