On 04/21/2016 08:52 PM, Matthew A. Postiff wrote:
> I got farther by installing a signal handler that I catch in the
> container class/object. Now if I am viewing the dialog, and hit escape,
> it closes, the dialog is destroyed, and I can create it again later.
>
> However, if I mouse click the Red X in the upper right corner of the
> dialog box (in Windows), the close routine is called, the dialog box
> container object is deleted and its pointer nullified, BUT the dialog
> box remains on screen.
>
> What am I doing wrong?
>
> void MainWindow::viewlog()
> {
> if (!syslogdialog) {
> DEBUG("Creating new System log dialog box")
> syslogdialog = new SystemlogDialog(0);
> // syslogdialog->getDialog() returns a GtkDialog *
> // Attach a signal that knows how to handle closing this dialog.
> g_signal_connect((gpointer)(syslogdialog->getDialog()),
> "close", G_CALLBACK (on_close_system_log_activate), gpointer(this));
> g_signal_connect((gpointer)(syslogdialog->getDialog()),
> "delete-event", G_CALLBACK (on_close_system_log_activate), gpointer(this));
> syslogdialog->run();
> }
> else {
> DEBUG("NOT creating new System log dialog box")
> // Nothing else to do because the dialog already exists and is
> displaying
> // on screen. If it ever comes to a point where that dialog is
> "lowered"
> // to below the main window (which doesn't happen, I guess because
> it is
> // a dialog), then we would need to "raise" it or call its "grab
> focus"
> // routine?
> }
> }
>
> // A static method
> void MainWindow::on_close_system_log_activate(GtkDialog *dlg, gpointer
> user_data)
> {
> // I'm guessing dlg == syslogdialog
> ((MainWindow *) user_data)->on_close_system_log();
> }
>
> void MainWindow::on_close_system_log()
> {
> DEBUG("Destroying system log dialog")
syslogialog->close() or syslogdialog->hide()
OR if you extended GtkDialog class with your won dialog class BLAH,
then you could override the close method or on_close method() and call
::close() or ::hide() from there
> delete syslogdialog;
> syslogdialog = NULL;
> }
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>
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