Sensoray 2255 Manual do Utilizador descarregar pdf (Página 26)

S2255_DeviceClose(HANDLE hdev);

Must be called before application terminates for proper clean-up of the SDK and SDK objects.

Parameters

hdev

the handle value of the unit to be closed

.

Returns

0 on success.

S2255_SetMode(HANDLE hdev, int channel, MODE2255 *mode);

Sets the operating mode for the selected channel (1-4) of the 2255.

Parameters

hdev

A handle to the 2255 device.

channel

channel number (1-4).

mode

a pointer to MODE2255 structure containing the desired operation mode (see s2255.h).

Returns

0 on success.

S2255_DQBUF(HANDLE hdev, int channel, int frmnum);

Informs the driver that the application is releasing a frame back to the driver. Failure to do that

may cause the driver to skip frames because of “buffer starvation”.

Parameters

hdev

A handle to the 2255 device.

channel

channel number (1-4).

frmnum

frame number to dequeue (0 to SYS_FRAMES – 1).

Returns

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