CODEWITHSUNDEEP
c#wpfwindowsregistry
F4Ke
F4Ke

Reputation: 1751

windows c# wpf / GetCommandLineArgs and registry shell open issue

My program allows the user to open a file directly with it.

To do so, I've created a registry key that open the program with the path of the file as first parameters.

so this is my registry key :

C:\Users\path_to\program.exe %1

Here, %1 is the specified path.

In simple path, like C:\Users\path\path\file.png it's works; perfectly.

But when I chose to open a special path (with spaces, for example) I've got something like that : C:\Users\path\DOCUME~\BROKEN~\path_ok~\FILE~1 -> BROKEN~ is a path with spaces in it, normaly it's like broken path test.

Any idea why ?

Thanks

Upvotes: 0

Views: 102

Answers (1)

jim22
jim22

Reputation: 32

The path with tildas (~) is a valid path to your file. You can try openng the file with that path and you will see that it works.

Windows used to limit each path component to 8 characters and not allow spaces in path components. When these restrictions were first lifted, most program could not handle the new path names, so Windows would also assign an old-form path name to each file that had spaces or path components longer than 8 characters. The path with tildas that you see is such old-form path.

Of course most software now, can handle regular paths, but Windows still provides maintains the old-form paths (even Windows 10).

You can tell Windows that you support new paths if your register your program with

C:\Users\path_to\program.exe "%1"

instead of 

C:\Users\path_to\program.exe %1

Upvotes: 1

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