input.cpp

#include <QtGui/QApplication>
#include <QtGui/QWidget>
#include <QtGui/QX11Info>

#include <X11/Xutil.h>

// Qt version of gtk_window_set_accept_focus().
// Qt 4.7 snapshot has Qt::WA_X11DoNotAcceptFocus.
void qt_window_set_accept_focus(QWidget *window, bool setting)
{
	XWMHints *wmhints = XGetWMHints(QX11Info::display(), window->winId());
	if (!wmhints)
		wmhints = XAllocWMHints();
	wmhints->flags = InputHint;
	wmhints->input = setting ? True : False;
	XSetWMHints(QX11Info::display(), window->winId(), wmhints);
	XFree(wmhints);
}

int main(int argc, char *argv[])
{
	QApplication app(argc, argv);
	QWidget widget;
	qt_window_set_accept_focus(&widget, false);
	widget.show();
	return app.exec();
}