Retrieving Signal Information
A dedicated MultiCam function is provided to retrieve the signal information for one or several specified signals issued by a specified object at any time.
Any signal the information of which is to be retrieved should be enabled with the SignalEnable parameter.
The retrieving function is called McGetSignalInfo. Here is the prototype:
MCSTATUS McGetSignalInfo (
MCHANDLE Instance,
MCSIGNAL Signal,
PMCSIGNALINFO SignalInformation
);
Item |
Type |
Description |
Instance |
MCHANDLE |
Argument designating the channel or processor object from which the retrieved signal is issued. |
Signal |
MCSIGNAL |
Argument designating the MultiCam signal to be retrieved. |
SignalInformation |
PMCSIGNALINFO |
Argument pointing to a signal information structure. The structure is updated with the signal information when the function completes successfully. |
Return Value |
MCSTATUS |
MC_OK or error code. MC_NO_EVENT when no signal information is available. |
The function should be called several times if information from several signals is to be retrieved.