mirror of
https://github.com/Nheko-Reborn/nheko.git
synced 2024-11-23 19:38:48 +03:00
47 lines
1.4 KiB
Markdown
47 lines
1.4 KiB
Markdown
|
Windows Specific Implementations
|
||
|
|
================================
|
||
|
|
|
||
|
|
Setting the foreground window
|
||
|
|
-----------------------------
|
||
|
|
|
||
|
|
In the `instanceStarted()` example in the `README` we demonstrated how an
|
||
|
|
application can bring it's primary instance window whenever a second copy
|
||
|
|
of the application is started.
|
||
|
|
|
||
|
|
On Windows the ability to bring the application windows to the foreground is
|
||
|
|
restricted, see [`AllowSetForegroundWindow()`][AllowSetForegroundWindow] for more
|
||
|
|
details.
|
||
|
|
|
||
|
|
The background process (the primary instance) can bring its windows to the
|
||
|
|
foreground if it is allowed by the current foreground process (the secondary
|
||
|
|
instance). To bypass this `SingleApplication` must be initialized with the
|
||
|
|
`allowSecondary` parameter set to `true` and the `options` parameter must
|
||
|
|
include `Mode::SecondaryNotification`, See `SingleApplication::Mode` for more
|
||
|
|
details.
|
||
|
|
|
||
|
|
Here is an example:
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
if( app.isSecondary() ) {
|
||
|
|
// This API requires LIBS += User32.lib to be added to the project
|
||
|
|
AllowSetForegroundWindow( DWORD( app.primaryPid() ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
if( app.isPrimary() ) {
|
||
|
|
QObject::connect(
|
||
|
|
&app,
|
||
|
|
&SingleApplication::instanceStarted,
|
||
|
|
this,
|
||
|
|
&App::instanceStarted
|
||
|
|
);
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
```cpp
|
||
|
|
void App::instanceStarted() {
|
||
|
|
QApplication::setActiveWindow( [window/widget to set to the foreground] );
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
[AllowSetForegroundWindow]: https://msdn.microsoft.com/en-us/library/windows/desktop/ms632668.aspx
|