Hello,
I have been using FLTK for quite a while now (about a year), and with some
success. I use the 1.3.2 version, which I have integrated in projects on
Windows, Mac OS and Linux.
However, I have a real problem on Mac OS, a crash which happens in certain
cases when I mix a (non FLTK) modal window and an FLTK window. When I destroy
the FLTK window, I have a crash...
I traced the error back to Fl::make_current in Fl_cocoa.mm, with a lockFocus,
which is where the bug is perpetrated...
For the moment, the only way for me to bypass this problem is to add a
@try/@catch around the lockFocus and I destroy the window...
void Fl_Window::make_current() {
..
NSView *current_focus = [NSView focusView];
// sometimes current_focus is set to a non-FLTK view: don't touch that
@try {
if ( [current_focus isKindOfClass:[FLView class]] )
[current_focus unlockFocus];
[[i->xid contentView] lockFocus]; <-- CRASH HERE
}
@catch(NSException* e) {
delete this; <-- VERY HORRIBLE, but it does not seem to matter
return;
}
It works, but I do not feel very comfortable to modify the code of a library
which I use on many platform.
Do you have any idea how I could bypass this error in a more acceptable way?
Thank you in advance...
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