Modules

Up one level

How can I have a partially transparent pixmap on my toplevel window? How can I resize a QDockWidget programatically? How can I catch Alt+F4 in my Qt application ? How can I draw shadows behind windows ? I would like to detect if the expansion sign has been clicked in my QTreeView. How can this be achieved? How can I get/set the max length of a QTextEdit ? Is there a way to set the size of the icon for the items in my view? How can a menu be removed from a menubar? How can I make the text of a disabled widget look enabled? How can I get rid of the white space outside the cells of my table in Qt 4? How can I represent rich text in an itemview ? Do you provide a tool for creating graphs? Is there a way to remove the checkbox from a QTreeWidgetItem? How can I use Qt widgets in another Carbon window? How can I draw one of my menu items, e.g Help, to the right in the menubar ? How can I change the icon for the sort indicator and its position in a QHeaderView? 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 implement drag and drop in a QTreeWidget? How can I add a non-resource image to a QTextDocument ? How can I align the checkboxes in a view? Is it possible to set a header and footer when printing a QTextDocument? How can I avoid drawing the focus rect on my buttons? How does Qt::WA_PaintOnScreen relate to the backing store, widget composition and double buffering? How can I trigger the parent widget to resize when its child widget is resized programmatically? How can I prevent the clicked() signal from being emitted when I want to grab the doubleClicked() signal in my item view ? How can I know which filter a user selected in a QFileDialog ? How can QTextCursor be used to select a row in a QTextTable? How can I modify the color for individual words for items in a view? When dragging and dropping between 2 views, how can I perform a move without pressing Shift ? When dragging and dropping between 2 views, how can I perform a move without pressing Shift? How can I modify the color of some of the rows in my view ? Qt seems to ignore the key sequence Ctrl++, is this a valid key sequence that Qt should recognize? How can I change the margins of my QTextDocument ? When the FileMode is DirectoryOnly in my QFileDialog, how can I select multiple directories? How can I remove a child window from the workspace and make it toplevel? 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 is your double buffering implemented? When popping up a context menu, how can I get hold of the cell where the menu popped up in my view? How can I avoid the underlining of links in a QTextBrowser ? How can I draw shadows behind text? Why does nothing happen when I set the palette background color on a QPushButton in some styles? How can I prevent the view from scrolling when the user selects an item in a view in Qt 4? How do I setup a database driver with Qt on Windows? How do I make text follow the line/curve and angle of the QPainterPath? 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 specify the spacing between the text and the icon for an item in a view? Is it possible to have partially transparent top-level windows in Qt ? How can I prevent the text in a QComboBox's dropdown from being clipped when the QComboBox is smaller than the text? 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 ? When I create more than 1000 pixmaps my Qt/Windows application crashes. Do you have any idea why? How can I print a widget? How can I add scroll arrows for tabwidgets on the Mac? How can I change the width of the popup list in my combobox? How can I avoid a paintEvent() when focus changes on Windows ? How can I get rid of the white space below the rows in a QTable? Can I resize a toplevel window to zero height and zero width? I can still insert numbers outside the range specified with a QDoubleValidator on a QLineEdit, is this a bug? How can I sort a QListView by its pixmaps? How to have a rotating pixmap in QCanvas Is there a way to rotate a widget e.g 90 degrees? Is there a limitation on Windows as to how many QRegions we can have? Is there a way to work around the fact that the dockwindow is only hidden and not closed? How can I change the font and color of my QListView's header? How can I activate actions in a parent widget when a child widget has focus? I have problems building an application that uses the Qt 3 filechooser plugin on Windows. Can you give some advice? How can I have both text and a pixmap on a QLabel? Does QPainter support alpha channels with a QPrinter ? How can I create a QDialog that has no minimize, maximize and close buttons in the titlebar ? How can I do multiselection in a QCalendarWidget ? How can I traverse all of the items in a QStandardItemModel ?

Why can't a QListView have a null current item in Qt 3? Why doesn't my QCanvas show up? How do I get a non-rectangular or transparent widget? Do I have to delete my child widgets? Can I use X11 overlays with the Qt OpenGL extension? 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?) I have a problem displaying certain image formats. Do you have any idea what the problem is? 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? Why are raster operations not supported in Qt 4? Why does my menubar disappear in Qt 4 applications on Mac OS X 10.3? Which image formats does Qt support? How can I create a custom editor in my view? How can I hide the dock and the menu on the Mac in Qt 3? How can I change the color of the radio button indicator? How can I change the background and foreground colors for the items in my QListView? How can I create a transparent label where the window's background pixmap shines through the label? How can I draw text that is both filled and outlined? Why is it only possible to draw in the GUI thread and how can this be worked around? How can I draw a pixmap with a background color after the pixmap is constructed from an image? How can I draw a question mark on an existing pixmap? How can I disable the native menubar on the Mac? How can I add a toolbar on a separate line in Qt 4? Drawing dotted lines seems slow, do you have a solution for this? When trying connect to a MySQL connection via Qt application, the following error message was displayed: "Can't create TCP/IP socket (10093) QMYSQL: Unable to connect" . What is the problem? How can I hide an entry in the menubar in Qt 3? When I read a XPM image into a QImage, is there a way I get determine which color is the transparent one? How do you change the Z-order of widgets that are children of the same parent? Why do I receive the warning: QSettings::sync: filename is null/empty when settings are modified with QSettings? Why is my text not antialiased? The layout is not respected when I use labels with rich text, is this a bug? How can I add widgets to my QFileDialog instance? How can I paint outside the paintevent? How can I get the pointer to a submenu which was inserted into a QPopupMenu by insertItem()? How can I change the row height of a QTreeView? How can I clone a widget? I change the background color of my child widgets, but the color does not change. What's wrong? How can I change the background color of the tabs in a QTabWidget in Qt 3? How can I change the highlight color of the items in a QListView in Qt 3? How can I make the first column of a table stay fixed when scrolling in Qt 3? How can I not draw the button's focus rect in Qt 3? On Redhat systems I get some Japanese characters displayed correctly but not all of them. How do I fix this? How can I transfer shortcuts that are not available in the child window to the parent window? How can I check in the mouse press event that a modifier key is pressed as well? Why does the pushbutton suddenly become square on the Mac when it gets down to a certain size? How can I save/restore the state of a QHeaderView? How can I keep the pixmap background at all times for flat buttons? How can I get rid of the focus rectangle for a QTextEdit in the motif style? 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 dynamically show a row, but make the horizontal scrollbar stay at the same position? How can I find subitems in a QTreeWidget using findItems? 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? How can I center the text in a table cell? When having a mainwindow with a toolbar, the context menu disappears when removing all the toolbars, what can I do to keep the context menu? Is there a way I can get rid of the icon in the mdi child window's titlebar? When trying to use Oracle in my application I get an error message saying "QSqlDatabase: QOCI driver not loaded". What's wrong? How can I create transparent labels and buttons where the window's background pixmap shines through the label? 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 stop the table from being selected when clicking in its top left corner? A QTreeWidget is sorted alphabetically by default, how can I change this behavior, e.g to sort numerically instead ? In Qt 3 I used QPixmap::handle() to get a HDC handle, but this function no longer exists in Qt 4. What should I use instead? When 2 views share the same model, how can the views get different values for some of the Qt::ItemDataRole roles ? When using fromWinHBITMAP() to create my pixmaps, they appear with a black background. What's wrong ? How can I programatically find out which rows/items are visible in my view ? How can I draw custom subcontrols for a complex control ? How can I use one horizontal scrollbar to scroll several QGraphicsViews ? How can I draw vertical text? How can I make a QComboBox have multiple selection? How can I span the headers in my QTableView ? setClickable() and setSortIndicatorShown() affect the entire QHeaderView, is there a way to have it affect only certain sections? Is it possible to reimplement non-virtual slots ?