I want to edit a layer by "ShapeLib C library" and "QGIS" at the same time. It means there is two reader/writer on one file (blah1.shx , blah1.dbf , blah1.shp).
I added a layer (etc: "point1.shp") to QGIS project , then add a point to this layer by ShapeLib simultaneously. Finally I see this point is added in QGIS.
When I add a point in QGIS, after save it, previous point (which added by Shapelib) will be removed unexpectedly!
How can I solve this problem?