Thanks so much for your reply, Daniel. I think my roadblock is fairly simple and appears you have solved it: do you have any code you could share that shows adding a couple map points? I do like the idea of having the descriptions of the map points in a table next to the map as that likely will solve some other issues. I have been fighting through the markpoints.cs example and am unsure about how to replicate the new shape() and new point() datatypes in VFP. I considered using wwDotNetBridge for this, but haven't used that before so am hoping to not learn two technologies at once.


>Hi Steve,
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>>Has anyone successfully used the MapWinGIS ocx in a valid application?
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>Yep me! Nice that I am not alone here struggling with the MapWinGIS ocx! Have been using it fully successfully? Sort of, I am on my way.
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>The good point. The tool is really fast and both tight and crisp even on moderately powerful hardware. The library shows its age but it is sometime a good point: tight C++ :-)
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>I was able to do anything I wanted to at this stage except for smart printout (see attachment). I use it in conjunction with a external tools that provide the png resources that we embed into the maps.
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>>Any advice to point me in the right direction (no pun intended) would be greatly appreciated.
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>What I have been able to do:
>- set the ocx up on screen, the easy part!
>- use "open format Internet based mapping material" à la openstreetmap. However I am not offering that to our customers who are exclusively using desktop map resources, this is way too sensitive for our customers...
>- setup an "open button" to embed map resources in various formats (ESRI shapefiles, google kml and the GEOJSON open format), easy as well
>- embed labels, on a per category basis, easy and fast!
>- offer coloring per shape, superb and fast as well!
>- insert points (and or icons) onto the map and grow their size when useful, more complex (embedding them may takes time as well...),
>- offer mouse-driven zooming (with the related VFP cursor selection), great!
>- print out the screen display (via API calls).
>- insert a short series of plain "map controlling" commands (pan the map, center map onto the data on display and decent undo/redo),
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>I can come back with a few of the tricks I found the hard way if you bumped on the same stuff. For sure translating VB activeX code to VFP is easy. Translating the C# equivalent is certainly the same cup of tea! I'd be glad to help if I can.
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>What I have LESS successful at:
>- click and double click actions,
>- add legend material inside the map, i just could not; we keep it it in a separate image control next to the map,
>- use the great and brilliant "snapshot" functionality. I bumped into a bug (memory leak).
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>My next step ? Find a way to get this nasty memory leak fixed with the project developers. It is open source and can certainly be patched. But my grasp of C++ is the one I had in 1993, last time i touched it! Say that this is zero. Since MapWinGIS is an active open source project, I'd be glad if we could get this patched!
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>Cheers, Daniel
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>Attachment: a current display of the functionality we are trying to achieve. Display "public transportation times" (and/or costs) for staff working in crowded cities on a map (here Paris), a very sensitive issues in 2021.
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>Nearly finished except for the smart printing out and part of the related time-and-cost analytics i-e where, fetching lists of optimized relocations offerings for company head offices based on "transportation time matrices".