Check file exist after load stack.

[Marken]

I wrote a widget with a property to set image file to show.
I don't want to save pixels data of image in stack. Instead, I just save the path information of the image file.
So after load stack, the widget need to check if the file exists.
Now I use " execute script "return there is a file" " to check file path.
But OnLoad(), OnAttach(), OnPaint() all can't use script object to execute script.
So anyone have other suggestions to check file path after load widget ( after open stack).

[livecodeali]

Hi Marken,
You could do such a thing in the widget's OnOpen handler.

[livecodeali]

Alternatively you could use LCB's the entries of directory <directory> operator to check if the file exists.

[Marken]

Hi Marken,
You could do such a thing in the widget's OnOpen handler.

good, I never test OnOpen() handler. Thank you.

[Marken]

Alternatively you could use LCB's the entries of directory <directory> operator to check if the file exists.

the entries of directory will crash with some path at Windows platform. Other other hand, if the <directory> does not exist and what will happen?
Thank you for your information.