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qt

Qt framework for cross-platform C++ development

ProgrammingQt QStateMachine: QPropertyAnimation Not Starting on Transition

Fix QPropertyAnimation staying Paused in Qt QStateMachine transitions with addAnimation(). Learn why it fails on QGraphicsItem, how to use QGraphicsObject + Q_PROPERTY, assignProperty, and sync with finished() signals for smooth qt state machine animations.

4 answers• 1 view
Mobile DevFix QTextEdit Overlap with Android Keyboard in Qt Android

Fix QTextEdit overlap with Android keyboard in Qt: use android:windowSoftInputMode=adjustPan and QInputMethod::keyboardRectangle to keep widgets visible.

1 answer• 1 view
ProgrammingPySide6 OpenCV: Full Camera Feed in QGraphicsView No Crop

Fix cropped OpenCV camera feed in PySide6 QGraphicsView. Set scene rect to pixmap bounds, call fitInView on resize, disable scrollbars, and use anchors for uncropped display with Qt.KeepAspectRatio.

1 answer• 1 view
ProgrammingFix QOpenGLWidget Flicker in PySide6 Layouts

Embed QOpenGLWidget in PySide6 layouts without flickering on resize or idle. Step-by-step fixes, working code example, platform tips for Linux/Windows, and Qt bug workarounds using attributes and QSurfaceFormat.

1 answer• 1 view
ProgrammingGet the QML engine from a registered C++ QML type object

Obtain the QQmlEngine that created a registered C++ QML type using qmlEngine(this) or QQmlEngine::contextForObject(this). Includes concise code example and tips.

1 answer• 1 view