On 10/21/12 09:33, Greg Ercolano wrote:
> On 10/21/12 09:25, Greg Ercolano wrote:
> The fltk native file chooser uses GetOpenFileNameW() in WIN32,
> which if you read about it and its related functions, might
> find a callback hook.
Sniffing around, I suggest starting with docs for GetOpenFileName():
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646931%28v=vs.85%29.aspx
..which shows the file browser dialog related 'hooks' I was talking
about, e.g. OFNHookProc:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646931%28v=vs.85%29.aspx
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646951%28v=vs.85%29.aspx#_win32_Hook_Procedures_for_Common_Dialog_Boxes
..which lets you set up a callback that gets invoked whenever the win32
file browser dialog does any operations, passing in "messages" whenever
an operation is about to occur so that your code can grab control
*while* the user is navigating the dialog.
I'm pretty sure the 'old style' dialogs that FLTK's native chooser use
has a message that's sent whenever the user picks a new directory to
browse,
which I think is what you'd want, but I can't find it.
I was able to find the message send for win32's new 'explorer' style
dialogs
(which fltk's native file chooser *don't* use by default, but perhaps
can
be enabled) for this:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms646960%28v=vs.85%29.aspx#_win32_Explorer_Style_Hook_Procedures
..the one you'd be interested in I think would be CDN_FOLDERCHANGE
(The user opened a new folder or directory), but again, that's only
for the new Explorer style dialog.. not sure about the old style.
So I can handle reading only so much about Win32 before I get ill,
so I'm gonna have to stop there before I barf.
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