digitalmars.D - X11 binding, XGetWindowProperty, and different behaviour for similar
- Simon Gomizelj (24/24) Apr 03 2009 As a personal learning D/learn X11 project, I thought it would be
- Simon Gomizelj (56/78) Apr 03 2009 C++ code:
- bearophile (6/6) Apr 02 2009 Simon Gomizelj:
- Simon Gomizelj (7/13) Apr 03 2009 I agree it's ugly, but I'm starting with a straight port. It will get
- Kagamin (2/10) Apr 02 2009 Yeah, C long is D intptr_t
- Jason House (2/98) Apr 02 2009
- Jarrett Billingsley (18/98) Apr 02 2009 ,
- Simon Gomizelj (23/132) Apr 03 2009 Yeah, thats it exactly, which is annoying because since I downloaded thi...
- Simon Gomizelj (8/142) Apr 03 2009 For curiousities sake, is there any interest to adding my bindings to an...
- Sergey Gromov (4/8) Apr 02 2009 If you have a dsource account, you automatically have write access to
- Fawzi Mohamed (10/45) Apr 03 2009 actually the correct thing is to use c_long and c_ulong for that, c
As a personal learning D/learn X11 project, I thought it would be interesting to try to port dwm over to D. Building it up nice and slowly, right now I'm trying to collect a list of windows and their states a-la dwm.c code. The D code, which is translated from C code, does not work, it returns: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 20 (X_GetProperty) Value in failed request: 0x2 Serial number of failed request: 29 Current serial number in output stream: 29 The C++ code, which is the D code translated back, does work. The code fails on a call to XGetWindowProperty. Debugging each shows that both the C++ and D code pass the same atom, display, and window. Setting WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the C++ code still seems to work. The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of http://www.dsource.org/projects/bindings/browser/trunk/X11?order=date. The rest are hand translated (but unconsequential, XGetWindowProperty is contained in Xlib). X.d and Xlib.d look correct enough. I've spent a full day looking at this code, and I can't seem to determine why the D code fails. Anyone have any ideas? Thanks in advance. -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Apr 03 2009
On Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com>
wrote:
As a personal learning D/learn X11 project, I thought it would be
interesting to try to port dwm over to D. Building it up nice and
slowly, right now I'm trying to collect a list of windows and their
states a-la dwm.c code.
The D code, which is translated from C code, does not work, it returns:
X Error of failed request: BadValue (integer parameter out of range for
operation)
Major opcode of failed request: 20 (X_GetProperty)
Value in failed request: 0x2
Serial number of failed request: 29
Current serial number in output stream: 29
The C++ code, which is the D code translated back, does work. The code
fails on a call to XGetWindowProperty. Debugging each shows that both
the C++ and D code pass the same atom, display, and window. Setting
WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the
C++ code still seems to work.
The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of
http://www.dsource.org/projects/bindings/browser/trunk/X11?order=date.
The rest are hand translated (but unconsequential, XGetWindowProperty is
contained in Xlib). X.d and Xlib.d look correct enough.
I've spent a full day looking at this code, and I can't seem to
determine why the D code fails. Anyone have any ideas? Thanks in advance.
C++ code:
long getstate(Window window)
{
static const long WM_STATE_ELEMENTS = 2L;
unsigned long nitems;
unsigned long leftover;
Atom xa_WM_STATE, actual_type;
int actual_format;
int status;
unsigned char* p = NULL;
xa_WM_STATE = XInternAtom(display, "WM_STATE", false);
cout << "debug: atom " << xa_WM_STATE << endl;
cout << "debug: XGetWindowProperty on window " << window << endl;
status = XGetWindowProperty(display, window,
xa_WM_STATE, 0L, WM_STATE_ELEMENTS,
false, xa_WM_STATE, &actual_type, &actual_format,
&nitems, &leftover, &p);
if(status == 0)
{
cout << "RETURN:" << ((p != NULL) ? (long)*p : -1) << " leftover:"
<< leftover << " nitems:" << nitems << endl;
XFree(p);
return (p != NULL) ? (long)*p : -1;
}
return -1;
}
D code:
long getstate(Window window)
{
static const long WM_STATE_ELEMENTS = 2L;
uint nitems;
uint leftover;
Atom xa_WM_STATE, actual_type;
int actual_format;
int status;
ubyte* p = null;
scope(exit) XFree(p);
byte[] name = cast(byte[])"WM_STATE\0";
xa_WM_STATE = XInternAtom(display, name.ptr, Bool.False);
debug output(color.green, "debug: atom {}", xa_WM_STATE);
debug output(color.cyan, "debug: XGetWindowProperty on window {}",
window);
status = XGetWindowProperty(display, window,
xa_WM_STATE, 0L, WM_STATE_ELEMENTS,
Bool.False, xa_WM_STATE, &actual_type, &actual_format,
&nitems, &leftover, &p);
debug output(color.cyan, "debug: XGetWindowProperty, result:{}",
status);
if(status == 0)
return (p != null) ? cast(long)*p : -1;
return -1;
}
--
Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Apr 03 2009
Simon Gomizelj: I don't like this: cast(long)*p : -1; In C you may need to use an union to perform that cast safely. Bye, bearophile
Apr 02 2009
"Simon Gomizelj" <simongmzlj gmail.com> On Thu, 02 Apr 2009 05:08:33 -0400, bearophile <bearophileHUGS lycos.com> wrote:Simon Gomizelj: I don't like this: cast(long)*p : -1; In C you may need to use an union to perform that cast safely. Bye, bearophileI agree it's ugly, but I'm starting with a straight port. It will get cleaned up. The D code never manages to get to that point so I have no idea if it even works. (The running C++ code makes me think it should). -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Apr 03 2009
bearophile Wrote:Simon Gomizelj: I don't like this: cast(long)*p : -1; In C you may need to use an union to perform that cast safely. Bye, bearophileYeah, C long is D intptr_t
Apr 02 2009
What type is Window? D will pass it differently based on type. Also, did you use the proper extern statement when declaring external API functions? Simon Gomizelj Wrote:On Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote:As a personal learning D/learn X11 project, I thought it would be interesting to try to port dwm over to D. Building it up nice and slowly, right now I'm trying to collect a list of windows and their states a-la dwm.c code. The D code, which is translated from C code, does not work, it returns: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 20 (X_GetProperty) Value in failed request: 0x2 Serial number of failed request: 29 Current serial number in output stream: 29 The C++ code, which is the D code translated back, does work. The code fails on a call to XGetWindowProperty. Debugging each shows that both the C++ and D code pass the same atom, display, and window. Setting WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the C++ code still seems to work. The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of http://www.dsource.org/projects/bindings/browser/trunk/X11?order=date. The rest are hand translated (but unconsequential, XGetWindowProperty is contained in Xlib). X.d and Xlib.d look correct enough. I've spent a full day looking at this code, and I can't seem to determine why the D code fails. Anyone have any ideas? Thanks in advance.C++ code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; unsigned long nitems; unsigned long leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; unsigned char* p = NULL; xa_WM_STATE = XInternAtom(display, "WM_STATE", false); cout << "debug: atom " << xa_WM_STATE << endl; cout << "debug: XGetWindowProperty on window " << window << endl; status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, false, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); if(status == 0) { cout << "RETURN:" << ((p != NULL) ? (long)*p : -1) << " leftover:" << leftover << " nitems:" << nitems << endl; XFree(p); return (p != NULL) ? (long)*p : -1; } return -1; } D code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; uint nitems; uint leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; ubyte* p = null; scope(exit) XFree(p); byte[] name = cast(byte[])"WM_STATE\0"; xa_WM_STATE = XInternAtom(display, name.ptr, Bool.False); debug output(color.green, "debug: atom {}", xa_WM_STATE); debug output(color.cyan, "debug: XGetWindowProperty on window {}", window); status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, Bool.False, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); debug output(color.cyan, "debug: XGetWindowProperty, result:{}", status); if(status == 0) return (p != null) ? cast(long)*p : -1; return -1; } -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Apr 02 2009
On Fri, Apr 3, 2009 at 4:40 AM, Simon Gomizelj <simongmzlj gmail.com> wrote= :On Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote:,As a personal learning D/learn X11 project, I thought it would be interesting to try to port dwm over to D. Building it up nice and slowly=orright now I'm trying to collect a list of windows and their states a-la dwm.c code. The D code, which is translated from C code, does not work, it returns: X Error of failed request: =A0BadValue (integer parameter out of range f=eoperation) =A0 Major opcode of failed request: =A020 (X_GetProperty) =A0 Value in failed request: =A00x2 =A0 Serial number of failed request: =A029 =A0 Current serial number in output stream: =A029 The C++ code, which is the D code translated back, does work. The code fails on a call to XGetWindowProperty. Debugging each shows that both th=++C++ and D code pass the same atom, display, and window. Setting WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the C=Thecode still seems to work. The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of http://www.dsource.org/projects/bindings/browser/trunk/X11?order=3Ddate.=erest are hand translated (but unconsequential, XGetWindowProperty is contained in Xlib). X.d and Xlib.d look correct enough. I've spent a full day looking at this code, and I can't seem to determin=ual_format,why the D code fails. Anyone have any ideas? Thanks in advance.C++ code: long getstate(Window window) { =A0 =A0static const long WM_STATE_ELEMENTS =3D 2L; =A0 =A0unsigned long nitems; =A0 =A0unsigned long leftover; =A0 =A0Atom xa_WM_STATE, actual_type; =A0 =A0int actual_format; =A0 =A0int status; =A0 =A0unsigned char* p =3D NULL; =A0 =A0xa_WM_STATE =3D XInternAtom(display, "WM_STATE", false); =A0 =A0cout << "debug: atom " << xa_WM_STATE << endl; =A0 =A0cout << "debug: XGetWindowProperty on window " << window << endl; =A0 =A0status =3D XGetWindowProperty(display, window, =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0xa_WM_STATE, 0L, WM_STATE_ELEMENTS, =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0false, xa_WM_STATE, &actual_type, &act==A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0&nitems, &leftover, &p); =A0 =A0if(status =3D=3D 0) =A0 =A0{ =A0 =A0 =A0 =A0cout << "RETURN:" << ((p !=3D NULL) ? (long)*p : -1) << " =leftover:" <<leftover << " nitems:" << nitems << endl; =A0 =A0 =A0 =A0XFree(p); =A0 =A0 =A0 =A0return (p !=3D NULL) ? (long)*p : -1; =A0 =A0} =A0 =A0return -1; } D code: long getstate(Window window) { =A0 =A0static const long WM_STATE_ELEMENTS =3D 2L; =A0 =A0uint nitems; =A0 =A0uint leftover; =A0 =A0Atom xa_WM_STATE, actual_type; =A0 =A0int actual_format; =A0 =A0int status; =A0 =A0ubyte* p =3D null; =A0 =A0scope(exit) XFree(p); =A0 =A0byte[] name =3D cast(byte[])"WM_STATE\0"; =A0 =A0xa_WM_STATE =3D XInternAtom(display, name.ptr, Bool.False); =A0 =A0debug output(color.green, "debug: atom {}", xa_WM_STATE); =A0 =A0debug output(color.cyan, "debug: XGetWindowProperty on window {}", window); =A0 =A0status =3D XGetWindowProperty(display, window, =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0xa_WM_STATE, 0L, WM_STATE_ELEMENTS, =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Bool.False, xa_WM_STATE, &actual_type,=&actual_format,=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0&nitems, &leftover, &p); =A0 =A0debug output(color.cyan, "debug: XGetWindowProperty, result:{}", s=tatus);=A0 =A0if(status =3D=3D 0) =A0 =A0 =A0 =A0return (p !=3D null) ? cast(long)*p : -1; =A0 =A0return -1; }My best guess is that you've translated those X11 function headers incorrectly. Perhaps you've used a D long where you shouldn't have. A D long is 64 bits, while a C long is 32, at least on 32-bit platforms. If you were to pass a 64-bit value where it was expecting a 32-bit one, the params would be in all the wrong places. But this is just speculation, since I don't know what your bindings look like.
Apr 02 2009
On Thu, 02 Apr 2009 09:59:55 -0400, Jarrett Billingsley <jarrett.billingsley gmail.com> wrote:On Fri, Apr 3, 2009 at 4:40 AM, Simon Gomizelj <simongmzlj gmail.com> wrote:Yeah, thats it exactly, which is annoying because since I downloaded this binding I just assumed it was done right 8-). extern (C): extern int XGetWindowProperty( Display* /* display */, Window /* w */, Atom /* property */, long /* long_offset */, <-- should be int long /* long_length */, <-- should be int Bool /* delete */, Atom /* req_type */, Atom* /* actual_type_return */, int* /* actual_format_return */, uint* /* nitems_return */, uint* /* bytes_after_return */, ubyte** /* prop_return */ ); Since their are no occurences of long longs I just did a search and replace across the whole file for longs to ints -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/On Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote:My best guess is that you've translated those X11 function headers incorrectly. Perhaps you've used a D long where you shouldn't have. A D long is 64 bits, while a C long is 32, at least on 32-bit platforms. If you were to pass a 64-bit value where it was expecting a 32-bit one, the params would be in all the wrong places. But this is just speculation, since I don't know what your bindings look like.As a personal learning D/learn X11 project, I thought it would be interesting to try to port dwm over to D. Building it up nice and slowly, right now I'm trying to collect a list of windows and their states a-la dwm.c code. The D code, which is translated from C code, does not work, it returns: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 20 (X_GetProperty) Value in failed request: 0x2 Serial number of failed request: 29 Current serial number in output stream: 29 The C++ code, which is the D code translated back, does work. The code fails on a call to XGetWindowProperty. Debugging each shows that both the C++ and D code pass the same atom, display, and window. Setting WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the C++ code still seems to work. The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of http://www.dsource.org/projects/bindings/browser/trunk/X11?order=date. The rest are hand translated (but unconsequential, XGetWindowProperty is contained in Xlib). X.d and Xlib.d look correct enough. I've spent a full day looking at this code, and I can't seem to determine why the D code fails. Anyone have any ideas? Thanks in advance.C++ code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; unsigned long nitems; unsigned long leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; unsigned char* p = NULL; xa_WM_STATE = XInternAtom(display, "WM_STATE", false); cout << "debug: atom " << xa_WM_STATE << endl; cout << "debug: XGetWindowProperty on window " << window << endl; status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, false, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); if(status == 0) { cout << "RETURN:" << ((p != NULL) ? (long)*p : -1) << " leftover:" << leftover << " nitems:" << nitems << endl; XFree(p); return (p != NULL) ? (long)*p : -1; } return -1; } D code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; uint nitems; uint leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; ubyte* p = null; scope(exit) XFree(p); byte[] name = cast(byte[])"WM_STATE\0"; xa_WM_STATE = XInternAtom(display, name.ptr, Bool.False); debug output(color.green, "debug: atom {}", xa_WM_STATE); debug output(color.cyan, "debug: XGetWindowProperty on window {}", window); status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, Bool.False, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); debug output(color.cyan, "debug: XGetWindowProperty, result:{}", status); if(status == 0) return (p != null) ? cast(long)*p : -1; return -1; }
Apr 03 2009
On Fri, 03 Apr 2009 13:33:21 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote:On Thu, 02 Apr 2009 09:59:55 -0400, Jarrett Billingsley <jarrett.billingsley gmail.com> wrote:For curiousities sake, is there any interest to adding my bindings to any standard library? I know bindings for X.h and Xlib.h exist, but I created a more complete set: X.d, Xlib.d, Xatom.d, Xproto.d, Xregion.d Xutil.d and Xinerama.d and xf86vmode.h -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/On Fri, Apr 3, 2009 at 4:40 AM, Simon Gomizelj <simongmzlj gmail.com> wrote:Yeah, thats it exactly, which is annoying because since I downloaded this binding I just assumed it was done right 8-). extern (C): extern int XGetWindowProperty( Display* /* display */, Window /* w */, Atom /* property */, long /* long_offset */, <-- should be int long /* long_length */, <-- should be int Bool /* delete */, Atom /* req_type */, Atom* /* actual_type_return */, int* /* actual_format_return */, uint* /* nitems_return */, uint* /* bytes_after_return */, ubyte** /* prop_return */ ); Since their are no occurences of long longs I just did a search and replace across the whole file for longs to intsOn Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote:My best guess is that you've translated those X11 function headers incorrectly. Perhaps you've used a D long where you shouldn't have. A D long is 64 bits, while a C long is 32, at least on 32-bit platforms. If you were to pass a 64-bit value where it was expecting a 32-bit one, the params would be in all the wrong places. But this is just speculation, since I don't know what your bindings look like.As a personal learning D/learn X11 project, I thought it would be interesting to try to port dwm over to D. Building it up nice and slowly, right now I'm trying to collect a list of windows and their states a-la dwm.c code. The D code, which is translated from C code, does not work, it returns: X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 20 (X_GetProperty) Value in failed request: 0x2 Serial number of failed request: 29 Current serial number in output stream: 29 The C++ code, which is the D code translated back, does work. The code fails on a call to XGetWindowProperty. Debugging each shows that both the C++ and D code pass the same atom, display, and window. Setting WM_STATE_ELEMENTS < 2 causes the D code to start to segfault while the C++ code still seems to work. The std.c.linux.X11.X and std.c.linux.X11.Xlib modules I grabbed off of http://www.dsource.org/projects/bindings/browser/trunk/X11?order=date. The rest are hand translated (but unconsequential, XGetWindowProperty is contained in Xlib). X.d and Xlib.d look correct enough. I've spent a full day looking at this code, and I can't seem to determine why the D code fails. Anyone have any ideas? Thanks in advance.C++ code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; unsigned long nitems; unsigned long leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; unsigned char* p = NULL; xa_WM_STATE = XInternAtom(display, "WM_STATE", false); cout << "debug: atom " << xa_WM_STATE << endl; cout << "debug: XGetWindowProperty on window " << window << endl; status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, false, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); if(status == 0) { cout << "RETURN:" << ((p != NULL) ? (long)*p : -1) << " leftover:" << leftover << " nitems:" << nitems << endl; XFree(p); return (p != NULL) ? (long)*p : -1; } return -1; } D code: long getstate(Window window) { static const long WM_STATE_ELEMENTS = 2L; uint nitems; uint leftover; Atom xa_WM_STATE, actual_type; int actual_format; int status; ubyte* p = null; scope(exit) XFree(p); byte[] name = cast(byte[])"WM_STATE\0"; xa_WM_STATE = XInternAtom(display, name.ptr, Bool.False); debug output(color.green, "debug: atom {}", xa_WM_STATE); debug output(color.cyan, "debug: XGetWindowProperty on window {}", window); status = XGetWindowProperty(display, window, xa_WM_STATE, 0L, WM_STATE_ELEMENTS, Bool.False, xa_WM_STATE, &actual_type, &actual_format, &nitems, &leftover, &p); debug output(color.cyan, "debug: XGetWindowProperty, result:{}", status); if(status == 0) return (p != null) ? cast(long)*p : -1; return -1; }
Apr 03 2009
Fri, 03 Apr 2009 13:55:12 -0400, Simon Gomizelj wrote:For curiousities sake, is there any interest to adding my bindings to any standard library? I know bindings for X.h and Xlib.h exist, but I created a more complete set: X.d, Xlib.d, Xatom.d, Xproto.d, Xregion.d Xutil.d and Xinerama.d and xf86vmode.hIf you have a dsource account, you automatically have write access to the bindings project. Simply update it if you think your version is better.
Apr 02 2009
On 2009-04-03 19:33:21 +0200, "Simon Gomizelj" <simongmzlj gmail.com> said:On Thu, 02 Apr 2009 09:59:55 -0400, Jarrett Billingsley <jarrett.billingsley gmail.com> wrote:actually the correct thing is to use c_long and c_ulong for that, c long on 64 bit platform is 64 bit... I think that typically long should have the same size as a pointer, I even think that something along these lines is in the standard, but I am not 100% sure. anyway D c_long should correspond to c long. tango defines it in tango.stdc.config, phobos probably in std.c.config (or something similar I did not check) FawziOn Fri, Apr 3, 2009 at 4:40 AM, Simon Gomizelj <simongmzlj gmail.com> wrote:Yeah, thats it exactly, which is annoying because since I downloaded this binding I just assumed it was done right 8-). extern (C): extern int XGetWindowProperty( Display* /* display */, Window /* w */, Atom /* property */, long /* long_offset */, <-- should be int long /* long_length */, <-- should be int Bool /* delete */, Atom /* req_type */, Atom* /* actual_type_return */, int* /* actual_format_return */, uint* /* nitems_return */, uint* /* bytes_after_return */, ubyte** /* prop_return */ ); Since their are no occurences of long longs I just did a search and replace across the whole file for longs to intsOn Fri, 03 Apr 2009 04:09:25 -0400, Simon Gomizelj <simongmzlj gmail.com> wrote: [...]My best guess is that you've translated those X11 function headers incorrectly. Perhaps you've used a D long where you shouldn't have. A D long is 64 bits, while a C long is 32, at least on 32-bit platforms. If you were to pass a 64-bit value where it was expecting a 32-bit one, the params would be in all the wrong places. But this is just speculation, since I don't know what your bindings look like.
Apr 03 2009