Hi,<br><br>you did not create your m_gameTheme before you make connection to it, just put setupGame() before m_gameTheme can fix your problem. line23:24 in MainWindow.cpp<br><br><div class="gmail_quote">On Sun, Jul 12, 2009 at 10:17 AM, ahmmahfuz rubel <span dir="ltr"><<a href="mailto:65mahfuz90@gmail.com">65mahfuz90@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I am having some problem when I tried to connect signals and slots of different classes. It was not a problem when I connected signals and slots within the same class(I even don't included the moc file!).<br>
<br>This is what I have done to connect two different classes:<br>
<br>I have a signal declared in MainWindow(inheritx kxmlGuiWindow) class named signalLoadTheme() <br>and a slot in ThemeManager class(inherits QSvgRenderer) named slotLoadTheme(). <br><br>I created a instance of ThemeManager in MainWindow name m_gameTheme( ThemeManager* m_Theme)<br>
and connected them in MainWindow using:<br><br>
<p style="margin: 0px; text-indent: 0px;"><b>connect(this, SIGNAL( signalLoadTheme()), m_gameTheme, SLOT( slotLoadTheme() ));</b></p><p style="margin: 0px; text-indent: 0px;"><br></p><p style="margin: 0px; text-indent: 0px;">
I used Q_OBJECT in both of the classes at first (tried also including moc files).</p><p style="margin: 0px; text-indent: 0px;"><br></p><p style="margin: 0px; text-indent: 0px;">But, this is not working, my program is crashing.<br>
</p><br><b>mahfuz@mahfuz-desktop:/usr/local/bin$ ./TestSignalSlot <br>KCrash: Application 'TestSignalSlot' crashing...<br>sock_file=/home/mahfuz/.kde/socket-mahfuz-desktop/kdeinit4__0<br>Warning: connect() failed: : No such file or directory<br>
KCrash cannot reach kdeinit, launching directly.<br><br></b><br>The necessary parts of my program is attached here(Not full, it is big).<br><br>Please Help. Also, let me know, when and why including the moc file is must.<br>
<br>Thanks in advance.<br>Mahfuz<br><br>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Cheers,<br>Zeng Huan<br>