how to check if the added/selected marker is outside the area displayed on the map
First use the TMSFNCMaps.GetBounds
call to retrieve the current displayed area of the map in the OnGetBounds
event.
Then you can use the IsPointInArea
to check if the marker coordinate is inside the bounds of the map. https://download.tmssoftware.com/doc/tmsfncmaps/components/ttmsfncmaps/#common-types