Qt Paint Update at Jai Robert blog

Qt Paint Update. Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved. The following invariant is preserved: You could create a qpainter that draws to a qpixmap. You need to rethink the logic of your program to use events the way they were. You shouldn't be waiting for input in your event handler. We set the shape, pen or brush according to the slot parameter, and call qwidget::update() to make the changes visible in the renderarea widget. The qwidget::update() slot does not cause an immediate. You can then update it at any rate you want and any parts of it you want. At any given time, there can only be one update event for any particular widget in an event queue. There is one thread receiving the video data, which calls update() on the display widget whenever a new frame is available that should be. I'm trying to do something like this tuto :

Qt Update Ui From Different Thread
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The following invariant is preserved: The qwidget::update() slot does not cause an immediate. We set the shape, pen or brush according to the slot parameter, and call qwidget::update() to make the changes visible in the renderarea widget. I'm trying to do something like this tuto : You could create a qpainter that draws to a qpixmap. At any given time, there can only be one update event for any particular widget in an event queue. You shouldn't be waiting for input in your event handler. You can then update it at any rate you want and any parts of it you want. There is one thread receiving the video data, which calls update() on the display widget whenever a new frame is available that should be. Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved.

Qt Update Ui From Different Thread

Qt Paint Update You can then update it at any rate you want and any parts of it you want. You can then update it at any rate you want and any parts of it you want. You could create a qpainter that draws to a qpixmap. The following invariant is preserved: At any given time, there can only be one update event for any particular widget in an event queue. Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved. There is one thread receiving the video data, which calls update() on the display widget whenever a new frame is available that should be. I'm trying to do something like this tuto : You need to rethink the logic of your program to use events the way they were. The qwidget::update() slot does not cause an immediate. You shouldn't be waiting for input in your event handler. We set the shape, pen or brush according to the slot parameter, and call qwidget::update() to make the changes visible in the renderarea widget.

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