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All FAQ's

• What is the Visual Studio add-in?
• What does the Qt commercial edition include?
• How can I convert a QString to char* and vice versa?
• Is Qt compatible with .NET?
• What is the process for contributing to Qt?
• Example of how to style QToolBox with QStyle
• Intellisense does not work for my Qt application. What's wrong?
• How can I create transparent labels and buttons where the window's background pixmap shines through the label?
• How can I detect in the .pro file if I am compiling for a 32 bit or a 64 bit platform?
• Why does a statically built Qt use the dynamic Visual Studio runtime libraries ? Do I need to deploy those with my application ?
• How can I align the checkboxes in a view?
• "MSVCRTD.lib(cinitexe.obj) : warning LNK4098: defaultlib "msvcrt.lib" conflicts with use of other libs; use /NODEFAULTLIB:library" -- What does this mean and how can I fix it?
• How can I handle events in the titlebar and change its color etc ?
• Do you provide a tool for creating graphs?
• Why is Qt released under LGPL?
• How can I insert a checkbox into the header of my view?
• How can I draw vertical text?
• How can I build 64 bit Qt on a 32 bit system ?
• How can I create a QDialog that has no minimize, maximize and close buttons in the titlebar ?
• How can I use one horizontal scrollbar to scroll several QGraphicsViews?
• How can I span the headers in my QTableView ?
• How can I change the width of the scrollbar of QWebView?
• How can I avoid drawing the focus rect on my buttons?
• How to compress data with Qt?
• How can I control how qmake adds VERSION to target filename?
• How can I use QSound with ALSA ?
• How can I move a window around when using Qt::FramelessWindowHint?
• How can I translate the OK and Cancel buttons when using the static QMessageBox functions?
• How can I resize a QDockWidget programatically?
• Building Qt with MinGW fails
• How can I get a QStackedWidget to automatically switch size depending on the content of the page?
• How do I enable the touch screen in Qt for Embedded Linux?
• How can I add version information to my Qt/Windows application?
• Is building Qt on a 64bit AMD platform with Windows supported?
• How can I add widgets to my QFileDialog instance?
• How can I change the row height of a QTreeView?
• How do I add a custom Info.plist to my Mac application with qmake?
• How to improve graphics performance on X11
• How to prevent right mouse click selection for a QTreeWidget?
• How can I have richtext in my QTableView?
• Does qmake have support for pkg-config?
• How can I make a QComboBox have multiple selection?
• Use of setCellWidget (in QTableWidget) and signal connections
• Do you have integration with Xcode ?
• How can I draw custom subcontrols for a complex control ?
• How can I prevent the clicked() signal from being emitted when I want to grab the doubleClicked() signal in my item view ?
• What is the difference between a static and a shared build of the Qt library?
• How can I get hold of a cell widget's row?
• What is the difference between Qt for Embedded Linux and Qt/X11?
• I can still insert numbers outside the range specified with a QDoubleValidator on a QLineEdit, is this a bug?
• How can I change the border color of a frame using a stylesheet?
• How can my stylesheet account for custom properties?
• How do I apply patch files to Qt source files?
• How can I catch Alt+F4 in my Qt application ?
• How can I embed a widget with a titlebar inside a QGraphicsScene?
• Which UML modelers can be used to perform reverse engineering on code written with Qt?
• How can I sort the items in a QTableWidget on multiple columns?
• How do I make a Qt application make a 'beep' sound?
• Can I use Windows APIs together with Qt? The compiler complains about redefinition of HDC etc.
• A QTreeWidget is sorted alphabetically by default, how can I change this behavior, e.g to sort numerically instead ?
• How can I easily create a Visual Studio project from my existing pro file
• QWebView does not display Chinese fonts from a Chinese web site
• How can I set headers for a QColumnView?
• Is Qt binary compatible?
• I have problems building an application that uses a Qt Designer plugin on Windows. Can you give some advice?
• Do you support using Qt in the Cygwin shell on Windows?
• How does Qt pick a font for the application?
• Can I develop software with Qt/X11 or Qt/Windows and easily change to Qt for Embedded Linux?
• How can I debug the Qt source files when running my application inside Visual Studio?
• What do I need installed on my machine to begin using Qt Creator and/or the Qt SDK?
• When keeping a key pressed down, then I receive a number of keyReleaseEvents() in addition to keyPressEvents(). Why is this happening and what can be done to only get a mousePressEvent() ?
• Which compiler and debugger can I use with the Eclipse C++ Integration on Windows?
• What does the syntax CONFIG(debug,debug|release) mean ? What does the 1st argument specify and similarly what is the 2nd ?
• How to minimize memory footprint in Qt for Embedded Linux?
• Is there a way to tell QTreeView to always resize itself based on the contents of all columns?
• You say I can program for multiple platforms with one source tree with Qt. Do I need cross-compilers or special tools?
• Can I develop commercial applications with PerlQt or PyQt or other Qt wrappers?
• Why doesn't OpenGL improve the performance of the chip demo?
• Do I need a license for all platforms I want to program on?
• Which image formats does Qt support?
• When QHttp::post() is called it doesn't seem to post a request, what is going wrong?
• I am experiencing random crashes when running my application on Windows, what can be wrong?
• How can I do drag and drop in a widget?
• My application's plugins won't load on some Windows machines, what can be wrong ?
• How can I prevent the text in a QComboBox's dropdown from being clipped when the QComboBox is smaller than the text?
• How do I get a non-rectangular or transparent widget?
• How is your double buffering implemented?
• Is there a way to tell qmake to copy files into my application bundle (e.g. private frameworks, sound files, etc.)?
• When using Qt with STL it crashes with a memory access exception, how do I fix this?
• How can I clone a widget?
• Moving my application away from MFC, why would I select Qt as the toolkit to move to?
• How can I add tooltips to a QComboBox?
• How can I add SSL support to my Qt application?
• How can I disable autoscroll when selecting a partially displayed column in a QTreeView?
• Why is it not allowed to copy QObjects?
• How can I instantiate new objects in my Qt Script code ?
• How can I have both text and a pixmap on a QLabel?
• How can I invoke functions on QObjects from another thread?
• How can I draw shadows behind windows ?
• When a signal is emitted, will all of the slots attached to it be executed before the emit returns? Or are the slots just scheduled to be executed whenever convenient?
• How to build pdb for release version of Qt?
• Can I use your icons in my product?
• How can I build executables/libraries in both release and debug mode on Windows?
• We have purchased a license, but the developer is leaving the company / project. Can we transfer the license to another developer?
• Is it possible to have transparent Qt widgets on top of a QGLWidget?
• How can I check which tab is the current one in a tabbed QDockWidget?
• Why can't Qt Mac for Cocoa be configured with -static
• How can a QModelIndex be retrived from the model for an internal data item?
• Why do I get the following error: QtMain.lib(qtmain_win.obj) : fatal error LNK1103: debugging information corrupt; recompile module?
• Errors using macdeployqt caused by old version of XCode.
• Is it possible to set a header and footer when printing a QTextDocument?
• How can I display vertical text in the section of a QHeaderView?
• How can I get QMAKE_POST_LINK to work with more than one command on Windows?
• How can I get hold of all of the visible items in my QTreeWidget?
• Why does nothing happen when I set the palette background color on a QPushButton in some styles?
• How can I create checkable items in a QTreeWidget?
• How can I align the text and icons in an itemview?
• How can I use plugins in a statically built Qt library in Qt 4?
• How can I have several Qt versions installed under WINNT\system32?
• setClickable() and setSortIndicatorShown() affect the entire QHeaderView, is there a way to have it affect only certain sections?
• How do I create a default size for the rows in a table view?
• Setting thread processor affinity in Linux
• I am unable to step into the Qt code in Visual Studio, what can the problem be?
• How can I find subitems in a QTreeWidget using findItems?
• Where do I find the QVFb tools directory?
• How can I generate .vcproj files recursively for a .pro file with the SUBDIRS template set?
• Why is the debug version of my application so slow?
• How can I change the size of the icon in the tab of a QToolBox?
• How can I implement my own proxy model that is more advanced than just sorting/filtering
• How can I enable "Edit and Continue" in my Qt application?
• How can I maintain several configurations using only one source tree?
• Can I use Qt for Embedded Linux on a PXA27x development board with our own version of Linux?
• How do I make text follow the line/curve and angle of the QPainterPath?
• How can I add a toolbar on a separate line?
• How can I detect hover events on the tabs of a QTabWidget?
• How can I add an accelerated graphics driver?
• How can I embed e.g a QMainWindow inside a QDialog ?
• How can I ensure that a horizontal scrollbar and not an ellipse shows up when resizing a column smaller than its content in a QTreeView ?
• How can I get debug output from my Qt applications?
• Is there a "Qt" way to handle UNIX/POSIX signals?
• Are there any tools for the job of converting Windows MFC dialogs?
• Is it possible to change the language of Qt Assistant's GUI?
• How can I paint outside the paintevent?
• Are any benchmarking and performance measurement tools used?
• Is there a way to remove the checkbox from a QTreeWidgetItem?
• How can I get rid of the focus rectangle for a QTextEdit in the motif style?
• How can I get webkit to load local resources referenced within html returned from a custom scheme?
• The eclipse integration will not install when using Wascana Desktop Developer, what can be wrong?
• How does Qt::WA_PaintOnScreen relate to the backing store, widget composition and double buffering?
• How can I prevent the MDI subwindows from closing when pressing Ctrl+W?
• Is a desktop simulation tool available?
• How can I move the origin of a QGraphicsScene to the top left corner of the view?
• How can I change the icon for the sort indicator and its position in a QHeaderView?
• How can I add a non-resource image to a QTextDocument?
• Why would I want to move my application away from the Microsoft Foundation Classes (MFC)?
• How can I initialize the size of the central widget inside a QMainWindow?
• Does Qt Creator support embedded/mobile software development?
• Does Qt for Embedded Linux support keyboard navigation?
• How can I dynamically switch between languages in my application using e.g a QComboBox?
• Should one use qApp or QCoreApplication::instance() when referring to the application object?
• I would like to know how I can build Qt on Solaris / HP-UX / AIX
• When the FileMode is DirectoryOnly in my QFileDialog, how can I select multiple directories?
• How can I get/set the max length of a QTextEdit ?
• Antialiasing does not work with VNC
• When dragging and dropping between 2 views, how can I perform a move without pressing Shift?
• When converting my pixmap to a HBITMAP using toWinHBITMAP(QPixmap::PremultipliedAlpha ) , they appear with a black background. How can I give the icons a transparent background?
• How can I change the width of the popup list in my combobox?
• Can you suggest a tool which we can use to track down memory leaks in Qt?
• Why do I get the error "'libpq-fe.h': No such file or directory" when trying to build the psql plugin?
• Is is possible to run Qt applications on Windows XP Embedded ?
• How can I drag from e.g a QListWidget and drop in an editable QTableView?
• How do I add true-type fonts when migrating my application from Qt-X11 to Qt for Embedded Linux?
• Is it possible to reimplement non-virtual slots?
• How can I specify a default location and file name that will be used if a user selects print to file, but not have "print to file" as the default option ?
• How can we remove properties from custom widgets in Designer?
• I have a problem displaying certain image formats. Do you have any idea what the problem is?
• How to avoid subclassing all available styles when wanting to change a small aspect of a widget for all styles
• Why doesn't Eclipse know about some of Qt's symbols / class names?
• How do I make a combobox look similar to one used in file dialogs
• We would like to use Linguist with an MFC application, without converting MFC to Qt. Is this possible?
• Polling SQL connection to test connectivity.
• Why do I receive the QVFb Driver Not Found message when running a Qt for Embedded Linux application?
• Is there a simple way to change the coordinate system of QPainter so that the logical coordinates start from the lower left corner instead of the upper left corner?
• How can I trigger the redraw of a single QGraphicsItem?
• Is a GUI software design tool provided with Qt for Embedded Linux?
• Why doesn't my service created with QtService start?
• I would like to add some widgets to a QMessageBox. How can I do it?
• Is there a way to specify build dependencies for Visual Studio 2003 and 2005?
• How to add to the beginning of a QDomDocument?
• I change the background color of my child widgets, but the color does not change. What's wrong?
• Why is it only possible to draw in the GUI thread and how can this be worked around?
• Loading a Sql driver from a customized location
• Does Qt for Embedded Linux make any assumptions about keyboard and mouse events or can we use our own drivers?
• How can I create a dialog that can be closed programatically, but not by the user ?
• How can I represent rich text in an itemview ?
• How can I make my Qt application use wchar_t instead of wchar_t- ?
• How can i get hold of all of the visible items in my QListView?
• What kind of touch screen / touch panel support does Qt for Embedded Linux have?
• Why does the 'New C++ Class' wizard miss most of the Qt classes in the 'Base Classes' list?
• When I compile my Qt based program I get a parse/syntax error in one of Qt's header files. What's wrong?
• Purify found a memory leak in qapplication_x11.cpp. Why don't you clean up the XIM (X Input Method) structure?
• Why is the fragment removed when using QDesktopServices::openUrl() to open a local file url with a fragment?
• Why isn't the parent's font propagated to QAbstractItemView subclasses on Windows?
• I have a problem installing a Qt RPM/deb/etc. package.
• I want to pop up a popup menu when I get a mouse event, but the menu pops up at wild places. (How do I convert local coordinates to global ones?)
• Compiling a Qt program fails with error messages looking something like this: undefined reference to `_vt.11QPushButton'
• How can I lay out a splitter so that one widget takes 2/3 of the space and another 1/3?
• After installing a new Qt version, Designer crashes when it loads the plugins, what's wrong?
• Mediaplayer demo program pauses before file is finished on embedded platform
• Can Qt for Embedded Linux display on landscape displays in portrait orientation and visa versa?
• What are the graphics capabilities of Qt for Embedded Linux?
• When building Qt using MinGW I get the following error: Makefile.Debug:24691: *** multiple target patterns. What can be wrong?
• How can I change the color of the items in my model?
• How can I avoid a paintEvent() when focus changes on Windows ?
• Does Qt provide an API for storing encrypted data?
• I get an 'Error while parsing /XXX/qrc_XXX.cpp, Java Heap Space'. What's the problem ?
• Are there any books about Qt programming?
• Who implements the antialiasing? You or the platform?
• I use a Qt-plugin in a non-Qt program on the Mac. When unloading the plugin, the application's menubar is deleted. What's going wrong ?
• lupdate has problems translating classes which are using a namespace, how can I solve this ?
• How can I sort a QComboBox?
• Do I have to delete my child widgets?
• Does Qt for Embedded Linux support any screen size?
• When running a Qt application on the French translation of Mac OS X, "About" shows up instead of "A propos" in the application menu. What is wrong ?
• How can I get a HDC handle?
• Why do ActiveQt controls no longer work after an upgrade to Internet Explorer 7?
• QTextEdit gets a performance problem when filling up
• What kind of IDEs can be used with Qt for Embedded Linux?
• Why do I receive the following error message when building makeqpf: Some of the required modules (nocrosscompiler) are not available.
• How can I run a Qt application on a Unix machine that doesn't have X11 installed?
• Why does not touching and moving work when running the imagegestures example on Windows 7?
• How can a menu be removed from a menubar
• When I set a font/palette explicitly for a QLabel on the Mac, then it is respected. If my QLabel only inherits the font, then it is ignored. What is the reason for this?
• Where do I find the resource editor in the integrated Qt Designer when using the Qt Eclipse Integration?
• Drawing dotted lines seems slow, do you have a solution for this?
• How can I make the text of a disabled widget look enabled?
• Is there a way I can get rid of the icon in the mdi child window's titlebar?
• How can I get rid of the white space outside the cells of my table?
• Does QPainter support alpha channels with a QPrinter ?
• My Qt/Windows application is running out of user handles, as the application contains a huge amount of widgets. What can be done about this ?
• How can I trigger the parent widget to resize when its child widget is resized programmatically?
• It is possible to suppress the scaling of the background of QGraphicsView?
• I am getting linking errors when trying to link against msvcrtd.lib. And when linking against libcmt.lib the application crashes. What can I do ?
• Is there a way to work around the fact that the dockwindow is only hidden and not closed?
• My custom widget appears as a grey rectangle in Designer. How can I fix this ?
• How can I know which filter a user selected in a QFileDialog?
• How to allow only a single column to be editable in a QTreeWidget?
• How can I modify the color for individual words for items in a view?
• Purify complains about UMRs (Uninitialized Memory Reads) in the QGDict constructor? Is this a bug in Qt?
• Does the Qt for Embedded Linux graphics subsystem have the capability write the updates only to the frame buffer, or does it always update the complete frame buffer?
• How can I have a partially transparent pixmap on my toplevel window?
• I would like to detect if the expansion sign has been clicked in my QTreeView. How can this be achieved?
• How can I make the scrollbar thinner ?
• How do I find out why my mouse and keyboard work in QVFb, but not on my target system?
• When doing Qt | Open Solution from .pro file in Visual Studio 2005 I get an error saying the sln file is from a previous version of Visual Studio and must be converted, what can I do?
• Why are .pro files parsed three times?
• unixODBC FreeTDS qGetStringData: Error while fetching data
• Why do you provide container classes as an alternative to STL in Qt?
• Can Qt Assistant be modified and redistributed with my application?
• How can I rotate items in a QGraphicsView using the mouse?
• I want to run my Qt for Embedded Linux application on the QVFb, but I get the message "Can't open framebuffer device /dev/fb0 : driver cannot connect".
• How can I translate the application menu on the Mac ?
• How can I print a widget?
• How can I keep the pixmap background at all times for flat buttons?
• How do I remove qtmain.lib from the Qt build?
• What kind of font support does Qt for Embedded Linux offer?
• Is there a way to get access to the virtual framebuffer inside a QPixmap, so that we can render to this address, and then blt the result to screen?
• How can I do multiselection in a QCalendarWidget?
• Is there a way to set the size of the icon for the items in my item view?
• How can I prevent a window from becoming active when clicking on it on Windows?
• Why doesn't my keyboard work after I have done an export QWS_KEYBOARD=/dev/tty?
• How can I get a handle to a pixmap in the form of a CoreGraphics surface/pointer on Mac?
• How do I create tooltips in QHeaderView?
• How can I avoid the underlining of links in a QTextBrowser ?
• Is it possible to install and run Qt for Embedded Linux on a headless machine?
• How can I draw a question mark on an existing pixmap?
• How to avoid that space is replaced with %20 when writing .ini files?
• Can I resize a toplevel window to zero height and zero width?
• How can I change the timeout period for a QToolTip?
• How does Qt for Embedded Linux access the display?
• How do I run Qt for Embedded Linux applications without a keyboard?
• How do I run a Qt for Embedded Linux application without a mouse?
• Where do I put the plug-in library file for a touch screen driver plug-in?
• When running on Linux then Eclipse crashes frequently. The 'problematic frame' seems to be 'gtk_tooltips_set_tip+0x1dc'. What is the problem ?
• QScriptEngine::uncaughtExceptionNumber() is returning 0 even though the error is elsewhere. What's wrong?
• I have a complex control where I never want to draw a certain subcontrol, how can I achieve this in Qt 4?
• How can I draw a pixmap with a background color after the pixmap is constructed from an image?
• The Makefile generated by the Qt Eclipse Integration has no 'dist' target. Is it really missing?
• Assistant does not launch or the documentation does not show up when launching Assistant, what is wrong?
• How can I specify the spacing between the text and the icon for an item in a view?
• I am unable to set a fixed size on my dialog, how can I do this?
• How to deal correctly with project files that should generate a debug and release build
• When I read a XPM image into a QImage, is there a way I get determine which color is the transparent one?
• Qt 4.5.2 does not honor Qt::Sheet hint anymore.
• How do I export my form without changing the generated code
• Can I execute a Qt for Embedded Linux application on my development PC although my X-server is running?
• Is there a way to make a menu in a QMainWindow that automatically redirects standard commands to the current widget ?
• How can I make the focus go from one cell to the next when hitting Enter?
• How can I temporarily disable tooltips in a QTreeWidget?
• How can I draw text that is both filled and outlined?
• Why is my text not antialiased?
• How can I tell qmake to have more than one target in a directory?
• Is it possible with Qt for Embedded Linuxto maximize a window to full screen mode without any toolbars, scrollbars, menubars and the like?
• What does it mean if the build fails with fatal error U1054
• How can I stack the dockwidgets vertically in the top dock area?
• Qt seems to ignore the key sequence Ctrl++, is this a valid key sequence that Qt should recognize?
• What is the program qtusagereporter?
• When creating a library with Qt/Windows and using it in an application, then there is a link error regarding symbols which are in the library
• Does Qt Assistant support the MNG format?
• When setting a pixmap with an alpha on a widget, how can I remove the widget's gray edges that shine through?
• How can I run multiple instances of an application on Mac OS X ?
• How can I convert a colored QPixmap into a grayscaled QPixmap?
• Does Qt provide translations for the user visible strings of the widgets?
• In Qt for Embedded Linux, when I create a pen with the style Qt::DashLine and a width of greater than 1, it does not appear to work in QPainter::drawLine(). Is that a limitation of the embedded library?
• How can I detect a period of no user interaction?
• How can I make Designer look for plugins outside qtDirectory\plugins\designer
• How can I make both the item picture and the item text transparent in the drag icon so that user can see what is under the drag icon?
• What function can I replace the QPaintDeivce::handle() function from Qt 3 in Qt 4 with?
• How can I change the header text of my model based view?
• Who provides training for Qt?
• How can I capture events for the delegate in my own class?
• How can we create a binary on Leopard that runs on both 10.4 and 10.5?
• Is there a way of sizing the window so that it is never overlapped by the taskbar (or it doesn't overlap the taskbar)?
• Is there a way to modify the window flags without causing flicker?
• How can I draw one of my menu items, e.g Help, to the right in the menubar ?
• How can I open my .html file in a browser?
• You frequently say that you cannot add this or that feature because it would break binary compatibility. What does this mean, really?
• How can I programatically find out which rows/items are visible in my view ?
• How can I create a QSettings group that is sorted numerically?
• When building with Visual C++, it uses a different copy of a specified file that has the same name. How do I fix this?
• Why does QString::indexOf(QRegExp) cause a crash or hang in Qt 4.5?
• How do I find out the properties of my Linux Frame Buffer?
• How can I create editable headers in a QTableView?
• How can I change the margins of my QTextDocument ?
• Is it possible to have no icons in the menu when using actions but use the same actions on a toolbar and have an icon there?
• The font Rendering is distorted on Windows, what could cause this problem?
• How often will new Qt SDK packages be released?
• When using fromWinHBITMAP() to create my pixmaps, they appear with a black background. What's wrong ?
• OpenGL and translucent background do not work together due to a limitation
• On Redhat systems I get some Japanese characters displayed correctly but not all of them. How do I fix this?
• Is there a limit to the number of widgets I can create on Windows ?
• On which operating systems does Qt Creator run?
• Is there a listing of the details of the changes in Qt 4 and what needs to be done to migrate from Qt 3.3.x to Qt 4?
• What is a standard way of configuring Qt/e for a desktop system used for developing Qt for Embedded Linux applications?
• How do I set the width or height of the header sections in a view?
• I am having problems displaying overlays on Linux with my NVIDIA card. The same code works on windows.
• Why do I get hundreds of warnings when the compiler warning level is set to level 4 for .NET 2003?
• How can I find out where the contents of my Mac binary package is installed?
• Can I get technical support for Qt Creator?
• Does Qt for Embedded Linux offer support for internationalization?
• Is an X server required for Qt for Embedded Linux?
• When setting a global color group on my Mac everything goes black. What is the problem?
• How can I display a tooltip over only one word in a QLabel?
• Why does the compilation of Qt for Embedded Linux fail with the message: "dialogs/qprintdialog.cpp:790: cups/cups.h: No such file or directory"?
• When I run my Qt for Embedded Linux application I get the error message "Can't drive depth 32".
• How can QTextCursor be used to select a row in a QTextTable?
• Is it possible for either the left or right dock areas to have full height of their side rather than having the bottom take the full width?
• How can I make the non-slot and non-property members of an object available to the script engine?
• My Designer plugin isn't loaded in Designer on Windows, even though I get the complied dll and lib. What's going on?
• How to prevent the user from assigning to an undeclared variable in Qt Script?
• Parentheses show up incorrectly for English text in a right-to-left application. What is wrong?
• Lines with width < 1 disappear when not using anti-aliasing
• My Windows build of Qt stops and complains that one of the plugins can't be opened. What's wrong ?
• I use a shortcut for interacting with a widget in my QTest::keyClick() function and the test fails. What can be wrong?
• How is configuration management handled?
• How can I create a custom editor in my view?
• When I build Qt I see the following: *** [listboxeditor.h] Trace/BPT trap and it fails to build.
• Why are the changes made in the Language tab in the International settings not respected on the Mac?
• How can I make one of my toolbars appear on the right hand side of the topdock area?
• Displaying a big pixmap or image does not work. How can this be fixed?
• How can I zoom QGraphicsItems using the mouse wheel?
• When popping up a context menu, how can I get hold of the cell where the menu popped up in my view?
• I get errors when building my Qt/Windows project where one of my paths appears to be cut off, what can be wrong?
• I am trying to build Qt on the Mac with the -universal flag specified, but it fails. What's wrong?
• There are general rendering problems when I run my application on a machine that has a Matrox G450 graphics card. Other machines that don't use this card do not have this problem. Is there a way to workaround this?
• How can I use several Qt based dlls in an external application?
• How can I create a 3rd party plugin using Qt that performs event handling?
• Why do I get an error when trying to set a model on QTableWidget?
• How can I modify the color of some of the rows in my QTableWidget ?
• Why doesn't Mac OS X respect carriage return?
• Does the Qt for Embedded Linux windowing system support standard window operations?
• How can I get rid of the sizegrip of a window on Mac OS X?
• How do I create a sln from a SUBDIRS template?
• How can I set an empty default value in QSpinBox?
• Does Qt for Embedded Linux support mouse shortcuts?
• Are there seperate versions for CDT 3.1 and CDT 4.0?
• How can I transfer shortcuts that are not available in the child window to the parent window?
• Why does the pushbutton suddenly become square on the Mac when it gets down to a certain size?
• How can I turn off the debug and release Makefile generation for my application?
• Is there a limitation on Windows as to how many QRegions we can have?
• When 2 views share the same model, how can the views get different values for some of the Qt::ItemDataRole roles ?
• When untaring the Qt package the following warning is seen "Tar.gz file content file "@Longlink" with zero permission and size." How can this be resolved?
• How can I prevent the view from scrolling when the user selects an item in a view?
• My underlines for accelerators don't show up in the context menus when I press Alt, while they do for normal menus. What's wrong?
• What is the difference between the QPSQL7 and QPSQL drivers?