AVAL APX-3302, Руководство пользователя

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APX-3302 User's Manual (OM110000019A)
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Register callback function
It registers callback function for notice of interrupt by AcapRegistCallback/AcapRegistCallbackEx. Only 1
callback function can be registered, but it can specify multiple interrupts.
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The setting example for software
The sample code to register callback function that occurs at "1 frame input completion interrupt" for ch1 is
as follows.
<Sample code>
void CALLBACK CallbackFunc ( int nChannel, DWORD dwEvent, int nFrameNo, int nMemoryNo)
{
printf( "CallbackFunc called. nChannel[%d] dwEvent[%d] nFrameNo[%d] nMemoryNo[%d]¥n" ,
nChannel, dwEvent, nFrameNo, nMemoryNo);
//Process at 1 frame input completion
}
// Register callback function at main routine
int rtn;
int channel = 1;
rtn = AcapRegistCallback(hDevice, channel, ACL_INT_FRAMEEND, (EVENT_FUNC)&CallbackFunc);
// Start capturing (Grab)
rtn = AcapGrabStart(hDevice, channel, 0);
// CallbackFunc is called as inputting 1 frame
<< Output result>> * If number of transfer destination memory = 3
CallbackFunc called. nChannel[1] dwEvent[2] nFrameNo[1] nMemoryNo[1]
CallbackFunc called. nChannel[1] dwEvent[2] nFrameNo[2] nMemoryNo[2]
CallbackFunc called. nChannel[1] dwEvent[2] nFrameNo[3] nMemoryNo[3]
CallbackFunc called. nChannel[1] dwEvent[2] nFrameNo[4] nMemoryNo[1]
CallbackFunc called. nChannel[1] dwEvent[2] nFrameNo[5] nMemoryNo[2]