qtDemo以及示例教程（无边框窗口）资源-CSDN下载

共2000个文件

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需积分: 10 167 浏览量 2022-11-04 17:42:04 上传评论收藏 76.53MB ZIP 举报

QT是Qt Company开发的一款强大的C++图形用户界面应用程序开发框架，广泛应用于桌面应用、嵌入式系统和移动设备。这个“qt Demo 以及示例教程（无边框窗口）”显然是一个关于如何创建并操作无边框窗口的教程。在QT中，无边框窗口可以实现自定义的窗口外观和行为，比如拖动、缩放等。让我们深入理解QT中的QWidget类。QWidget是所有GUI对象的基础，包括按钮、文本框、窗口等。在QT中，如果你想要创建一个无边框窗口，你可以通过继承QWidget类并重写其某些方法来实现。关键在于禁用默认的窗口装饰，这可以通过调用`setWindowFlags()`函数并传递适当的标志来完成。例如，你可以使用`Qt::FramelessWindowHint`标志来移除窗口的边框。代码示例可能如下： ```cpp #include <QApplication> #include <QWidget> class FramelessWindow : public QWidget { public: FramelessWindow() { setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint); // 添加Qt::WindowSystemMenuHint以保留系统菜单栏 } }; int main(int argc, char *argv[]) { QApplication app(argc, argv); FramelessWindow window; window.show(); return app.exec(); } ``` 在这个例子中，我们创建了一个名为`FramelessWindow`的新类，它继承自QWidget。在构造函数中，我们设置了窗口标志，使其成为无边框窗口。然后在`main`函数中，我们创建了一个`FramelessWindow`实例并显示它。为了让无边框窗口能够被拖动，你需要监听鼠标事件。当鼠标按下时，记录鼠标位置，然后在鼠标移动时更新窗口的位置。以下是如何实现这一点的一个简单示例： ```cpp void FramelessWindow::mousePressEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { m_dragPosition = event->globalPos() - pos(); event->accept(); } } void FramelessWindow::mouseMoveEvent(QMouseEvent *event) { if (event->buttons() & Qt::LeftButton) { move(event->globalPos() - m_dragPosition); event->accept(); } } ``` 在这个`FramelessWindow`类中，我们添加了`mousePressEvent`和`mouseMoveEvent`两个方法。当鼠标左键按下时，记录当前窗口与鼠标位置的差值；在鼠标移动时，根据差值移动窗口。除了基本的拖动功能，你可能还需要实现窗口的缩放。这通常涉及到对边缘或角落的鼠标点击进行特殊处理。例如，当鼠标在窗口的顶部或左侧边缘时，你可以增加窗口的高度或宽度；在角落，你可以同时调整高度和宽度。在"QWidgetDemo-master"这个压缩包中，可能包含了完整的代码示例，包括如何创建、拖动和缩放无边框窗口的详细步骤。通过查看和运行这些示例，你可以更深入地理解和学习QT中无边框窗口的实现技巧。 QT的无边框窗口功能提供了极大的灵活性，允许开发者自定义窗口的外观和交互方式。通过学习和实践，你可以创建出符合自己需求的独特用户界面。记得在实际开发中，确保遵循良好的编程实践，保持代码的清晰和可维护性。

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qt Demo 以及示例教程（无边框窗口）（2000个子文件）

qcustomplot.cpp 1.31MB

qcustomplot.cpp 1.13MB

qcustomplot.cpp 884KB

ui4.cpp 291KB

abstractformbuilder.cpp 105KB

qdesigner_command.cpp 90KB

qtresourceeditordialog.cpp 83KB

qlayout_widget.cpp 81KB

qdesigner_propertysheet.cpp 65KB

qdesigner_propertycommand.cpp 60KB

qttoolbardialog.cpp 60KB

qdesigner_actions.cpp 53KB

connectionedit.cpp 46KB

qwt_symbol.cpp 43KB

qwt_plot_layout.cpp 43KB

layout.cpp 43KB

qdesigner_menu.cpp 39KB

qwt_picker.cpp 39KB

lunarcalendarinfo.cpp 39KB

qdesigner_workbench.cpp 37KB

qwt_painter.cpp 36KB

qwt_date_scale_engine.cpp 35KB

widgetfactory.cpp 33KB

quotefactory.cpp 32KB

previewmanager.cpp 32KB

widgetdatabase.cpp 31KB

qtresourceview.cpp 31KB

qwt_plot_curve.cpp 31KB

qwt_plot.cpp 30KB

qextserialport.cpp 30KB

qwt_wheel.cpp 29KB

actioneditor.cpp 29KB

qdesigner_taskmenu.cpp 29KB

qwt_plot_renderer.cpp 28KB

qwt_scale_engine.cpp 28KB

qwt_plot_canvas.cpp 28KB

pluginmanager.cpp 27KB

qdesigner_menubar.cpp 27KB

zhtopy.cpp 26KB

qwt_graphic.cpp 26KB

qwt_plot_rasteritem.cpp 25KB

qdesigner_utils.cpp 25KB

imagecropperlabel.cpp 25KB

properties.cpp 24KB

quihelper.cpp 24KB

morphmenu.cpp 24KB

abstractformwindow.cpp 24KB

lunarcalendarwidget.cpp 24KB

qwt_slider.cpp 23KB

qwt_thermo.cpp 23KB

qtresourcemodel.cpp 22KB

qwt_scale_widget.cpp 22KB

richtexteditor.cpp 22KB

qwt_scale_draw.cpp 22KB

videowidget.cpp 22KB

qwt_legend.cpp 21KB

qscripthighlighter.cpp 21KB

newformwidget.cpp 21KB

qdesigner_tabwidget.cpp 21KB

qwt_knob.cpp 20KB

actionrepository.cpp 20KB

qwt_plot_legenditem.cpp 19KB

signalslotdialog.cpp 19KB

qwt_dial.cpp 19KB

iconselector.cpp 19KB

formlayoutmenu.cpp 19KB

qwt_point_mapper.cpp 19KB

qwt_date.cpp 19KB

qdesigner_promotiondialog.cpp 18KB

qwt_plot_multi_barchart.cpp 18KB

friedberg2007.cpp 18KB

qdesigner_formbuilder.cpp 18KB

qwt_abstract_slider.cpp 18KB

qwt_plot_tradingcurve.cpp 18KB

formbuilderextra.cpp 18KB

qwt_plot_histogram.cpp 18KB

formbuilder.cpp 18KB

frmcomtool.cpp 18KB

qwt_plot_axis.cpp 18KB

qwt_counter.cpp 17KB

qdesigner_integration.cpp 17KB

qwt_plot_spectrogram.cpp 17KB

zoomwidget.cpp 17KB

abstractformeditor.cpp 17KB

qdesigner_toolbar.cpp 16KB

qwt_plot_zoomer.cpp 16KB

qdesigner_toolbox.cpp 16KB

formwindowbase.cpp 16KB

dbpage.cpp 16KB

qdesigner_promotion.cpp 16KB

qwt_plot_item.cpp 16KB

qwt_text.cpp 15KB

textpropertyeditor.cpp 15KB

qsimpleresource.cpp 15KB

imagecropperdemo.cpp 15KB

qdesigner_stackedbox.cpp 15KB

stylesheeteditor.cpp 15KB

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yu san

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