USBIO Driver for Windows CE - Thesycon Systemsoftware ...
USBIO Driver for Windows CE - Thesycon Systemsoftware ...
USBIO Driver for Windows CE - Thesycon Systemsoftware ...
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3 Programming Interface<br />
CUsbIo::Open<br />
Open an USB device.<br />
Definition<br />
DWORD<br />
Open(<br />
int DeviceNumber,<br />
HDEVINFO DeviceList,<br />
const GUID* InterfaceGuid,<br />
bool CheckApiVersion = true<br />
);<br />
Parameters<br />
DeviceNumber<br />
Specifies the index number of the USB Device. The index is zero-based. Note that the<br />
association between this number and the USB device can change with each call to<br />
CUsbIo::CreateDeviceList.<br />
DeviceList<br />
A handle to the internal device list which was returned by the function<br />
CUsbIo::CreateDeviceList.<br />
InterfaceGuid<br />
Under <strong>Windows</strong> <strong>CE</strong> with parameter is unused.<br />
CheckApiVersion = true<br />
If this parameter is true the open function fails with the error code<br />
<strong>USBIO</strong>_ERR_VERSION_MISMATCH if the API version of the used driver is less than the<br />
expected or the major version of the API is different.<br />
Return Value<br />
The function returns 0 if successful, an <strong>USBIO</strong> error code otherwise.<br />
See Also<br />
CUsbIo::Close (page 30)<br />
CUsbIo::IsOpen (page 35)<br />
CUsbIo::IsCheckedBuild (page 36)<br />
CUsbIo::IsDemoVersion (page 37)<br />
CUsbIo::IsLightVersion (page 38)<br />
28 <strong>USBIO</strong> <strong>Driver</strong> <strong>for</strong> <strong>Windows</strong> <strong>CE</strong>
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