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22 lines
976 B
Markdown
22 lines
976 B
Markdown
# Windows Specifics
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## Setting the foreground window
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In the `instanceStarted()` example in the `README` we demonstrated how an
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application can bring it's primary instance window whenever a second copy
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of the application is started.
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On Windows the ability to bring the application windows to the foreground is
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restricted, see [AllowSetForegroundWindow()](https://msdn.microsoft.com/en-us/library/windows/desktop/ms632668.aspx) for more details.
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The background process (the primary instance) can bring its windows to the
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foreground if it is allowed by the current foreground process (the secondary
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instance). To bypass this `SingleApplication` must be initialized with the
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`allowSecondary` parameter set to `true` .
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If the widget is minimized to Windows task bar, `QWidget::raise()` or
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`QWidget::show()` can not bring it to the front, you have to use Windows API
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`ShowWindow()` .
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You can find [demo code](examples/windows_raise_widget/main.cpp) in the examples directory.
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