Public bug reported: Here is sample code: #v+ using Qyoto;
class Dupa:QWidget { QGridLayout layout=new QGridLayout(); public Dupa() { for(int i=0;i<11;++i) { layout.AddWidget(new QLabel(i.ToString()),i,0); layout.AddWidget(new QLineEdit(i.ToString()),i,1); } SetLayout(layout); Show(); } static void Main(string[] args) { new QApplication(args); new Dupa(); QApplication.Exec(); } } #v- Compilation method: gmcs -r:/usr/lib/cli/qyoto-1.0/qt-dotnet.dll dupa.cs And here is the result of executing `mono dupa.exe': #v+ ASSERT failure in QCoreApplication::sendEvent: "Cannot send events to objects owned by a different thread. Current thread b4e00788. Receiver '' (of type 'QWidget') was created in thread 8402fe0", file kernel/qcoreapplication.cpp, line 269 Stacktrace: at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod (int,intptr,intptr,int) <0x00004> at (wrapper managed-to-native) Qyoto.SmokeInvocation.CallSmokeMethod (int,intptr,intptr,int) <0xffffffff> at Qyoto.SmokeInvocation.Invoke (string,string,System.Type,object[]) <0x00895> at Qyoto.QLabel.Finalize () <0x00035> at (wrapper runtime-invoke) System.Object.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff> Native stacktrace: /usr/bin/cli [0x8194ca6] /usr/bin/cli [0x8177154] [0xffffe440] /lib/tls/i686/cmov/libc.so.6(abort+0x101) [0xb7d5e201] /usr/lib/libQtCore.so.4(_Z17qt_message_output9QtMsgTypePKc+0xcf) [0xb64fe01d] /usr/lib/libQtCore.so.4(_Z6qFatalPKcz+0x7f) [0xb64fe0a1] /usr/lib/libQtCore.so.4(_Z11qt_assert_xPKcS0_S0_i+0x3c) [0xb64fe0f8] /usr/lib/libQtCore.so.4(_ZN23QCoreApplicationPrivate19checkReceiverThreadEP7QObject+0x26f) [0xb65bd70f] /usr/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x7c) [0xb5e5c4ea] /usr/lib/libsmokeqt4.so.1(_ZN14x_QApplication6notifyEP7QObjectP6QEvent+0x87) [0xb6ad6b73] /usr/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x80) [0xb65bc456] /usr/lib/libQtGui.so.4 [0xb5e5917f] /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x3ba) [0xb5eb0c74] /usr/lib/libQtGui.so.4(_ZN6QFrameD2Ev+0x3d) [0xb61f8ac3] /usr/lib/libQtGui.so.4(_ZN6QLabelD2Ev+0x56) [0xb6200a10] /usr/lib/libsmokeqt4.so.1(_ZN8x_QLabelD0Ev+0x72) [0xb6c1555c] /usr/lib/libsmokeqt4.so.1(_Z12xcall_QLabelsPvPN5Smoke9StackItemE+0x50c) [0xb6be8902] /usr/lib/libqyoto.so(_ZN10MethodCall4nextEv+0x143) [0xb7040723] /usr/lib/libqyoto.so(CallSmokeMethod+0xdd) [0xb703942d] [0xb7072c1c] [0xb7071b3e] [0xb503603e] [0xb79890db] /usr/bin/cli [0x8176f50] /usr/bin/cli(mono_runtime_invoke+0x27) [0x80b0b2f] /usr/bin/cli [0x80cacfe] /usr/bin/cli [0x813ff70] /usr/bin/cli [0x80ca4c1] /usr/bin/cli [0x80caed2] /usr/bin/cli [0x80e92fb] /usr/bin/cli [0x81316ad] /usr/bin/cli [0x814ab16] /lib/tls/i686/cmov/libpthread.so.0 [0xb7ea646b] /lib/tls/i686/cmov/libc.so.6(clone+0x5e) [0xb7e0573e] ASSERT: "q->testAttribute(Qt::WA_WState_Created)" in file kernel/qwidget_x11.cpp, line 1631 #v- IMO this isn't normal behaviour and should be repaired in some way. ** Affects: qyoto (Ubuntu) Importance: Undecided Status: New -- cross-thread access to qt widgets https://bugs.launchpad.net/bugs/157677 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs