AW: Overriding the default "file does not exist" error dialog.

[Joerg Toellner]

Hi Patrick,

I can't be of any help with the question why your solution won't work. But
maybe you can use this workaround.

Use:

::wxFileExists
bool wxFileExists(const wxString& filename)
Returns true if the file exists and is a plain file 

to check if the file is present and load it only if its there, and after
loading use:

wxBitmap::IsOk
bool IsOk() const
Returns true if bitmap data is present

to check if loading succeded.

In case of error, use a normal wxMessageBox to display whatever you want to
show to your users.

HTH
Greeting
Joerg


-----Ursprüngliche Nachricht-----
Von: -Patrick [mailto:CaptainMorganRawks at gmail.com] 
Gesendet: Freitag, 17. August 2007 06:18
An: wx-users at lists.wxwidgets.org
Betreff: Overriding the default "file does not exist" error dialog.

I have a file that I am testing for when it is not found. As a result of it
not being found I am receiving the dialog:

"Can't load image from file 'images/mypic.gif': file does not exist."

When I or a user hit OK to close the dialog the dialog flickers and never
closes. I end up having to force quit the application. I thought of writing:

if (!bitmap.LoadFile(wxT("images/mypic.gif"), wxBITMAP_TYPE_GIF)) {
    wxMessageDialog(this, wxT("Problem loading image, please check
resources.")); }

in the OnPaint() but it appears this if statement is ignored.

Am I making any sense? Can I override the dialog that never closes with the
above? Or is there something else I am missing or another alternative?

Thanks,
-Patrick

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