Finds out where the user clicked in a graph. ObjectAtPointer reports the region of the graph under the pointer and stores the associated series and data point numbers in the designated variables.
grObjectType dwcontrol.ObjectAtPointer ( string graphcontrol, REF integer seriesnumber, REF integer datapoint )
Returns a value of the grObjectType enumerated datatype identifying the type of object under the pointer if the user clicks anywhere in the graph (including an empty area) and a NULL value if the user clicks outside the graph. If any argument’s value is NULL, ObjectAtPointer also returns NULL.
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