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The new version of OneDrive creates a Status column in Windows Explorer to show the status of individual files. This is a better option that Icon Overlays, as there is a strict limit of 15 in the system and also this allows multiple status icons per-file.
This is how it looks:
I have been unable to find the details about how to create this. The closest I've found is a mention in this Microsoft blog:
https://devblogs.microsoft.com/oldnewthing/20190313-00/?p=101094
Specifically here:
https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/CloudMirror
Unfortunately, I can't get the sample to build, and its structure is very different from my application.
I was hoping that there would be docs detailing the COM entries, something like this (for icon overlays):
https://learn.microsoft.com/en-us/windows/win32/shell/how-to-implement-icon-overlay-handlers
Any help would be appreciated.
Thanks,
Bob
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 12%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDL%3C/text%3E%3C/svg%3E)
The OneDrive status column appears to be a property in the Windows property system. I don't know whether the examples illustrate what's needed though.
In searching the docs on this I don't see any relation to status column. Did you see something specific?
Thanks,
I'm assuming it's implemented that way because Status shows up as an option for any folder.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(115.19999999999999, 50%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQX%3C/text%3E%3C/svg%3E)
Hello, have you solved this problem now, I also need to complete this function, but the code is in C# language, so I would like to ask for your help, thank you very much
You can refer to Microsoft's official sample: Cloud Mirror sample
I've been working on this sample and if I could get it to build I should be able to reverse engineer it to figure it out, but it is giving me odd errors. I'm using VS2017 and the correct version SDK.
1>C:\Program Files (x86)\Windows Kits\10\References\10.0.17763.0\Windows.Storage.Provider.CloudFilesContract\3.0.0.0\Windows.Storage.Provider.CloudFilesContract.winmd : warning C4335: Mac file format detected: please convert the source file to either DOS or UNIX format
2>C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Microsoft\VisualStudio\v15.0\AppxPackage\Microsoft.AppXPackage.Targets(2519,5): warning APPX0104: Certificate file 'CloudMirrorPackage_TemporaryKey.pfx' not found.
I assume I'm missing something major, but I don't know what.
I also got the second warning, but it did not affect my build project. And you can refer to Compiler Warning C4335 to solve the first warning. I think there may be a problem with the way you build the project, first you need to build the CloudMirror project , And then select CloudMirrorPackage as the startup project. go to Build> Build Solution from the top menu after the sample has loaded. Which works for me.