Qt project on Mac OS X. I need to show notification window on top without stealing a focus from any active application.
Here the widget constructor part:
Pavel,
Have you heard of Growl? Growl is a VERY impressive notification app that you can bundle and use with your application. Adium - a popular instant messaging app for OS X - uses it for all notifications.
http://growl.info/
I did it!
#ifdef Q_OS_MAC
#include <Carbon/Carbon.h>
#endif
NotifyWindow::NotifyWindow() : QWidget(0 /* This zero is the first point */) {
setWindowFlags(
#ifdef Q_OS_MAC
Qt::SubWindow | // This type flag is the second point
#else
Qt::Tool |
#endif
Qt::FramelessWindowHint |
Qt::WindowSystemMenuHint |
Qt::WindowStaysOnTopHint
);
setAttribute(Qt::WA_TranslucentBackground);
// And this conditional block is the third point
#ifdef Q_OS_MAC
winId(); // This call creates the OS window ID itself.
// qt_mac_window_for() doesn't
int setAttr[] = {
kHIWindowBitDoesNotHide, // Shows window even when app is hidden
kHIWindowBitDoesNotCycle, // Not sure if required, but not bad
kHIWindowBitNoShadow, // Keep this if you have your own design
// with cross-platform drawn shadows
0 };
int clearAttr[] = { 0 };
HIWindowChangeAttributes(qt_mac_window_for(this), setAttr, clearAttr);
#endif
}
We get almost the same nice behavior as in Windows:
You could implement Growl. http://growl.info/documentation/developer/
Ive just tested these flags
Qt::FramelessWindowHint |Qt::WindowSystemMenuHint |Qt::WindowStaysOnTopHint
And
setFocusPolicy(Qt::NoFocus);
setAttribute(Qt::WA_ShowWithoutActivating,true);
Without Cocoa or Carbon code for window flags/masks. And notifyWindow works like on Windows or Linux.
try this on mac:
setWindowFlags(windowFlags() | Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint);
setAttribute(Qt::WA_TranslucentBackground);
setAttribute(Qt::WA_AlwaysStackOnTop);