ICS Advent WDT1000-P, Product Manual

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DetectIRQ
This function suspends the thread that it was called from and waits for an IRQ to occur on the IRQ
number that was passed to InitIRQ. DetectIRQ will return immediately, however, if an IRQ occured
anytime before the DetectIRQ call, as long as an IRQ number was initialized with InitIRQ.
Otherwise, DetectIRQ will not return until an IRQ occurs. If the program needs to continue running
while waithing for DetectIRQ, a separate thread should be spawned from which to call DetectIRQ.
The return result is TRUE if an IRQ was successfully detected on the given IRQ number, FALSE if
no IRQ was initialized before the call. There are no parameters.
SendEOI
This function sends an end of interrupt message to the VxD. It must be called after an IRQ is
detected of the interrupt will remain in the system. The return result is TRUE if the EOI message
was successfully sent, FALSE if not. There are no parameters.
Addendum: 00650-009-28C