ADLINK Technology HDV62, User Manual

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Function Library 59
4.5.3 CallbackSelector
Purpose
These functions set or get the type of callback function.
Prototype

C/C++
int Hdv62_SetCallbackSelector (UINT Number, UINT
Mode)
int Hdv62_GetCallbackSelector (UINT Number, UINT
Mode)
 C#
int SetCallbackSelector (uint Number, uint Mode)
int GetCallbackSelector (uint Number, out uint Mode)

VB.Net
SetCallbackSelector (ByVal Number as UInteger, ByVal
Mode as UInteger) As Integer
GetCallbackSelector (ByVal Number as UInteger, ByRef
Mode as UInteger) As Integer
Parameters
 Number
The number of device. The allowed value is from 0 to 15.
 Mode
The type of callback. HDV62 has 2 kind of callback; one is
frame callback and another is DI callback. The frame call-
back is the library calls the callback routine when a frame is
ready. The DI event is the library calls the callback routine
when the state of any DI has changed. Mode could be one
of the following values:
0: Frame callback
1: DI callback
Use SetCallback routinue to set a callback function.
Return Value
No error occurs if return value >= 0; if negative value, please refer
to Section 4.9 for error information about return codes.