User`s guide

5 Acquiring Image Data
5-12
return true;
// Create the image acquistion thread.
_acquireThread = CreateThread(NULL,
0,
acquireThread,
this,
0,
&_acquireThreadID);
if (_acquireThread == NULL) {
closeDevice();
return false;
}
// Wait for thread to create message queue.
while(PostThreadMessage(_acquireThreadID,WM_USER+1,0,0) == 0)
Sleep(1);
return true;
}
2
To be able to compile and link your adaptor, you must create a stub implementation
of your acquireThread() function and add it to your adaptor. You can fill in
the complete implementation later — see “Implementing the Acquisition Thread
Function” on page 5-18.
DWORD WINAPI MyDeviceAdaptor::acquireThread(void* param) {
MSG msg;
while (GetMessage(&msg,NULL,0,0) > 0) {
switch (msg.message) {
case WM_USER:
// The frame acquisition loop code goes here.
imaqkit::adaptorWarn(''in acquire thread function \n'');
} // end switch
} // end while
return 0;
} // end acquireThread
3
Add declarations of the acquireThread() function, the acquireThread variable,
and the acquireThreadID variable as private data members of your adaptor class
header file. In this example, MyDeviceAdaptor.h.