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Christian Lechner
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PtSetResource -> PtImmortalizeWidget
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Christian Lechner
06/24/2010 5:16 AM
post57756
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PtSetResource -> PtImmortalizeWidget
Hi,
I try to set the text from a normal application to a photon label in a photon window. I can see the label and other
textfields, when I start the photon application. Input_proc is a message handler, which receives the messages from my
normal application. I use a message channel with name_attach. This works, at least the "OK!" string is returned and
print out by the normal application. The printf "Photon input .... Is not shown. When I try to change the text (msg
receive) within a label or textfield, I get a memory violation from PtImmortalizeWidget. I have no idea what this means
and how to get it running. Can someone help me with that?
Sourcecode from abmain.c (exe=lcdPhoton)
70 int input_proc(void *client_data, pid_t pid, void *msg,
71 size_t msglen)
72 {
73
74 struct MyMsg* mymsg = (struct MyMsg *) msg;
75
76 printf("Photon input message called");
77
78 MsgReply(pid,0, "OK!", 4);
79 // PtHold();
80 // PtSetResource(widget, type, value, len);
81 // PtTextModifyText(ABW_PtText1, 0,0 , -1, "wos is", 6);
82 PtSetResource(ABW_PtLabel0, Pt_ARG_TEXT_STRING, "wos is" /* mymsg->data */, 0);
83 // PtRelease();
84 PtFlush();
88 return Pt_CONTINUE;
89 }
Command line output
1message send ok
2reply : OK!
3
4Process 294935 (lcdPhoton) terminated SIGSEGV code=1 fltno=11 ip=011db640(libph.
5so.3@PtImmortalizeWidget+0x0) mapaddr=000db640. ref=00000064
Chris
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Derek Leach
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RE: PtSetResource -> PtImmortalizeWidget
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Derek Leach
06/24/2010 8:48 AM
post57770
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RE: PtSetResource -> PtImmortalizeWidget
What application core faulted, the one with this input proc, or the one
that sent the message? What does struct MyMsg look like?
-----Original Message-----
From: Christian Lechner [mailto:community-noreply@qnx.com]
Sent: Thursday, June 24, 2010 5:17 AM
To: photon-graphics
Subject: PtSetResource -> PtImmortalizeWidget
Hi,
I try to set the text from a normal application to a photon label in a
photon window. I can see the label and other textfields, when I start
the photon application. Input_proc is a message handler, which receives
the messages from my normal application. I use a message channel with
name_attach. This works, at least the "OK!" string is returned and print
out by the normal application. The printf "Photon input .... Is not
shown. When I try to change the text (msg receive) within a label or
textfield, I get a memory violation from PtImmortalizeWidget. I have no
idea what this means and how to get it running. Can someone help me with
that?
Sourcecode from abmain.c (exe=lcdPhoton)
70 int input_proc(void *client_data, pid_t pid, void *msg,
71 size_t msglen)
72 {
73
74 struct MyMsg* mymsg = (struct MyMsg *) msg;
75
76 printf("Photon input message called");
77
78 MsgReply(pid,0, "OK!", 4);
79 // PtHold();
80 // PtSetResource(widget, type, value, len);
81 // PtTextModifyText(ABW_PtText1, 0,0 , -1, "wos is", 6);
82 PtSetResource(ABW_PtLabel0, Pt_ARG_TEXT_STRING, "wos is" /*
mymsg->data */, 0);
83 // PtRelease();
84 PtFlush();
88 return Pt_CONTINUE;
89 }
Command line output
1message send ok
2reply : OK!
3
4Process 294935 (lcdPhoton) terminated SIGSEGV code=1 fltno=11
ip=011db640(libph.
5so.3@PtImmortalizeWidget+0x0) mapaddr=000db640. ref=00000064
Chris
_______________________________________________
Photon microGUI
http://community.qnx.com/sf/go/post57756
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Christian Lechner
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Re: RE: PtSetResource -> PtImmortalizeWidget
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Christian Lechner
06/24/2010 9:49 AM
post57782
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Re: RE: PtSetResource -> PtImmortalizeWidget
HI,
struct MyMsg {
char data[20];
};
I don't think it's because of the message. Right now, I just use the message to call the input_proc. The photon
application lcdPhoton with the input_proc crashes. When I comment PtSetResource from this function, everything works
fine. (except printf("Photon ....)
Well, something is wront with my widget pointer I think. I found the code for PtSetResource
int PtSetResources( PtWidget_t *widget, int n_args, PtArg_t const *args )
58 {
59 int ret;
60 PtHold();
61 PtImmortalizeWidget( widget );
62 ret = (*widget->class_rec->setres_f)( widget, n_args, args, NULL );
63 if ((widget->flags & (Pt_REALIZED|Pt_REALIZING))||(widget->class_rec->flags & Pt_FORCE_SYNC))
64 PtSyncWidget( widget );
65 PtMortalizeWidget( widget );
66 PtRelease();
67 return( ret );
68 }
/*
80 * Set only one widget resource (no PtSetArg needed to use this)
81 */
82 int _PtSetResource( PtWidget_t *widget,long type,long value,long len)
83 {
84 PtArg_t arg = { type, value, len };
85 return PtSetResources( widget, 1, &arg );
86 }
void PtImmortalizeWidget( PtWidget_t *widget ) {
282 while ( ++widget->is_immortal == 1
283 && ( widget = widget->parent ) != NULL
284 );
285 }
:#define ABW_PtText0 AbGetABW( ABN_PtText0 )
9:#define ABW_PtText1 AbGetABW( ABN_PtText1 )
11:#define ABW_PtLabel0 AbGetABW( ABN_PtLabel0 )
But e.g. ABN_PtText0 is defined (from PhAB) and the AbGetABW() function should return a Pt_Widget_t *.
But the runtime has some problem with the pointer.
Maybe someone has an answer, why printf doesn't work. It would be helpful to see some values.
Chris
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Derek Leach
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RE: RE: PtSetResource -> PtImmortalizeWidget
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Derek Leach
06/24/2010 9:58 AM
post57785
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RE: RE: PtSetResource -> PtImmortalizeWidget
try a flushall() after the printf, see if that helps ...
-----Original Message-----
From: Christian Lechner [mailto:community-noreply@qnx.com]
Sent: Thursday, June 24, 2010 9:49 AM
To: photon-graphics
Subject: Re: RE: PtSetResource -> PtImmortalizeWidget
HI,
struct MyMsg {
char data[20];
};
I don't think it's because of the message. Right now, I just use the
message to call the input_proc. The photon application lcdPhoton with
the input_proc crashes. When I comment PtSetResource from this function,
everything works fine. (except printf("Photon ....)
Well, something is wront with my widget pointer I think. I found the
code for PtSetResource
int PtSetResources( PtWidget_t *widget, int n_args, PtArg_t const *args
)
58 {
59 int ret;
60 PtHold();
61 PtImmortalizeWidget( widget );
62 ret = (*widget->class_rec->setres_f)( widget, n_args, args, NULL
);
63 if ((widget->flags &
(Pt_REALIZED|Pt_REALIZING))||(widget->class_rec->flags & Pt_FORCE_SYNC))
64 PtSyncWidget( widget );
65 PtMortalizeWidget( widget );
66 PtRelease();
67 return( ret );
68 }
/*
80 * Set only one widget resource (no PtSetArg needed to use this)
81 */
82 int _PtSetResource( PtWidget_t *widget,long type,long value,long
len)
83 {
84 PtArg_t arg = { type, value, len };
85 return PtSetResources( widget, 1, &arg );
86 }
void PtImmortalizeWidget( PtWidget_t *widget ) {
282 while ( ++widget->is_immortal == 1
283 && ( widget = widget->parent ) != NULL
284 );
285 }
:#define ABW_PtText0 AbGetABW( ABN_PtText0 )
9:#define ABW_PtText1 AbGetABW( ABN_PtText1 )
11:#define ABW_PtLabel0 AbGetABW( ABN_PtLabel0 )
But e.g. ABN_PtText0 is defined (from PhAB) and the AbGetABW() function
should return a Pt_Widget_t *.
But the runtime has some problem with the pointer.
Maybe someone has an answer, why printf doesn't work. It would be
helpful to see some values.
Chris
_______________________________________________
Photon microGUI
http://community.qnx.com/sf/go/post57782
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Christian Lechner
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Re: RE: RE: PtSetResource -> PtImmortalizeWidget
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Christian Lechner
06/24/2010 10:44 AM
post57793
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Re: RE: RE: PtSetResource -> PtImmortalizeWidget
Hi,
thanks, flushall() worked. I get a 0 pointer for the Widget:
Photon input message called
ABN_PtText0 1, WidgetPtr 0 (<- printf("%X", AbGetABW(ABN_PtText0)))
Within the code I didn't find the line where AbWidgets[] is initialized.
Hence, I tried to make a new PhAB project with just one text field, and now it works. I don't know why, but somehow the
generated PhAB files were corrupt.
Tanks again for helping
Chris
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Derek Leach
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RE: RE: RE: PtSetResource -> PtImmortalizeWidget
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Derek Leach
06/24/2010 11:01 AM
post57794
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RE: RE: RE: PtSetResource -> PtImmortalizeWidget
you're welcome.
-----Original Message-----
From: Christian Lechner [mailto:community-noreply@qnx.com]
Sent: Thursday, June 24, 2010 10:44 AM
To: photon-graphics
Subject: Re: RE: RE: PtSetResource -> PtImmortalizeWidget
Hi,
thanks, flushall() worked. I get a 0 pointer for the Widget:
Photon input message called
ABN_PtText0 1, WidgetPtr 0 (<- printf("%X", AbGetABW(ABN_PtText0)))
Within the code I didn't find the line where AbWidgets[] is initialized.
Hence, I tried to make a new PhAB project with just one text field, and
now it works. I don't know why, but somehow the generated PhAB files
were corrupt.
Tanks again for helping
Chris
_______________________________________________
Photon microGUI
http://community.qnx.com/sf/go/post57793
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