Hi Stewart,

Because SendMessage will do the same job as we automation work that it will
put a message in the excel message queue, so it does not work as Excel is
working on the focused window(something like a modal dialog), so we use
sendinput which will generate the input event in the input queue directly.

Anyway I am glad that the project worked!!
Cheers!

Best regards,

Peter Huang
Microsoft Online Partner Support

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