[Pyobjc-dev] [ pyobjc-Bugs-841191 ] printing an NSView hangs.

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Bugs item #841191, was opened at 2003-11-13 15:57
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Tobias Sargeant (tobiasjs)
Assigned to: Nobody/Anonymous (nobody)
Summary: printing an NSView hangs.

Initial Comment:
If an NSView subclass has a knowsPageRange: method, 
attempting to print it causes a hang.

The printing process never gets as far as calling the 
method, as far as I can tell. gdb isn't too helpful, as it 
seems to cause a segfault that isn't otherwise seen. This is 
the traceback at the fault, however:

Program received signal EXC_BAD_ACCESS, Could not 
access memory.
0x9083122c in objc_msgSend ()
(gdb) where
#0  0x9083122c in objc_msgSend ()
#1  0x00284df4 in pythonify_c_value (type=0xbfffbbd0 "", 
datum=0xbfffbbb0) at Modules/objc/objc_support.m:681
#2  0x002965c4 in method_stub (cif=0xbfffbbd0, 
resp=0xbfffbb80, args=0xbfffbaa0, userdata=0xa0001304) 
at Modules/objc/libffi_support.m:388
#3  0x00297a44 in ffi_closure_helper_DARWIN 
(closure=0x3b5480, rvalue=0xbfffbb80, pgr=0x40, 
pfr=0xa0001304) at /Users/toby/Desktop/pyobjc-1.0/libffi-
src/src/powerpc/ffi_darwin.c:696
#4  0x00297dd4 in ffi_closure_ASM ()
#5  0x92f89354 in -[NSView(NSPrinting) 
_knowsPagesFirst:last:] ()
#6  0x92f89070 in -[NSView(NSPrinting) _setUpOperation:
helpedBy:] ()
#7  0x92f88bc0 in -[NSView(NSPrinting) _realPrintPSCode:
helpedBy:] ()
#8  0x92f88b18 in -[NSConcretePrintOperation 
_doActualViewPrinting] ()
#9  0x930cf1c0 in -[NSConcretePrintOperation 
runOperation] ()
#10 0x00297d0c in ffi_call_DARWIN ()
...

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