Qt 自定义QPrintPreviewDialog

是否可以自定义QPrintPreviewDialog

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我想定义放大和缩小功能

我知道这个问题已经问了几个月了，但我花了相当长的时间才弄明白，所以这里是：

QPrintPreviewDialog preview(&printer, this);
QList<QToolBar *> toolbarlist = preview.findChildren<QToolBar *>();
if(!toolbarlist.isEmpty())
{
    toolbarlist.first()->actions().at(3)->setDisabled(true);
    toolbarlist.first()->actions().at(4)->setDisabled(true);
    toolbarlist.first()->actions().at(5)->setDisabled(true);
    //or to remove:
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));

    //alternatively you can add actions to the toolbar:
    //toolbarlist.first()->addAction(QIcon("icon.png"), tr("New Action"));
}

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我知道这个问题已经问了几个月了，但我花了相当长的时间才弄明白，所以现在是：

QPrintPreviewDialog preview(&printer, this);
QList<QToolBar *> toolbarlist = preview.findChildren<QToolBar *>();
if(!toolbarlist.isEmpty())
{
    toolbarlist.first()->actions().at(3)->setDisabled(true);
    toolbarlist.first()->actions().at(4)->setDisabled(true);
    toolbarlist.first()->actions().at(5)->setDisabled(true);
    //or to remove:
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));
    //toolbarlist.first()->removeAction(toolbarlist.first()->actions().at(3));

    //alternatively you can add actions to the toolbar:
    //toolbarlist.first()->addAction(QIcon("icon.png"), tr("New Action"));
}

谢谢，很好用

每个菜单项都可以访问

    QList<QToolBar *> toolbarlist = priview.findChildren<QToolBar *>();
    foreach(auto tool, toolbarlist )
    { 
        tool->setDisabled(true); 
   }

谢谢，很好用

每个菜单项都可以访问

    QList<QToolBar *> toolbarlist = priview.findChildren<QToolBar *>();
    foreach(auto tool, toolbarlist )
    { 
        tool->setDisabled(true); 
   }