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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:
iIndexValue lpOutputFormat 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