Question

I am writing a Qt application that calls QProcess::startDetached(“wscript.exe script.vbs”) to show the delete confirmation dialog in Windows.

this is the script:

Set objShell = CreateObject("Shell.Application") 
Set objFolder = objShell.Namespace("-") 
Set objFolderItem = objFolder.ParseName("-") 
objFolderItem.InvokeVerb("Delete")

the arguments for Namespace and ParseName are from the arguments passed to the script.

This may be inefficient because it opens an external application first before running the script. I was wondering if i can run VBScripts in a Qt application.

If not, what alternatives can i do?

Answer 1

My VBScript is very weak, so I’m not 100% sure I understand what you are trying to do. My assumption is that you are trying to delete a folder, but want to give the user the normal confirmation box and animation while the action is occurring. If that is not correct, please let me know and I will remove this answer.

A few ideas:

• You could call the Windows API directory within your C++ code to do this. I believe the correct call would be to use IFileOperation (Vista and later) or SHFileOperation (pre-Vista)
• Qt already has message box dialogs. Although you might not get the exact same functionality as the native shell, you could use this (QMessageBox::warning) and then delete the folder using QDir. This would also be cross-platform portable.
• If you stick with the VBScript, I doubt you would see any performance issues unless this is being called many, many times in a loop or something. You know, the old “premature optimization is the root of all evil” thing.