Error message dialog using cloud api

Question

I use windows cloud api to implement file sync
When i double click unpinned file, it will trigger fetch callback to call CfExecute with type "CF_OPERATION_TYPE_TRANSFER_DATA"

If transfer file meet error, I set error code in TransferData.CompletionStatus = NTSTATUS_FROM_WIN32(Win32ErrorCode) in structure CF_OPERATION_PARAMETERS

but the error message dialog cannot show corresponding error code/message

for example, TransferData.CompletionStatus = NTSTATUS_FROM_WIN32(ERROR_SHARING_VIOLATION), error message shows 80070185

how to set error code that can show error message correct??

Answer 1

Hi,

Welcome to Microsoft Q&A!

According to the Doc: CF_OPERATION_PARAMETERS structure

DUMMYUNIONNAME.TransferData.CompletionStatus

Status for transferring data. Set to STATUS_SUCCESS if the sync provider will transfer data to a placeholder.

Any status code returned outside of STATUS_CLOUD_FILE_ range except for STATUS_SUCCESS will be converted to STATUS_CLOUD_FILE_UNSUCCESSFUL by the platform.

I suggest you could try to use the STATUS_CLOUD_FILE_ACCESS_DENIED instead of STATUS_ACCESS_DENIED.

For more details I suggest you could refer to the similar thread: https://learn.microsoft.com/en-us/answers/questions/280676/change-error-message-when-canceling-delete-operati.html

Best Regards,

Jeanine

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Answer 2

It's working.
Thanks for your help.