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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit -  The Feature Definition File</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }--></style></head><body bgcolor="#ffffff"><p><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b>  <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align="center"> The Feature Definition File</h1><br clear="all">The file<tt>src/tools/qfeatures.h</tt>includes the file<tt>src/tools/qconfig.h</tt>. By modifying <tt>qconfig.h</tt>, youcan define a subset of the full Qt functionality that you wish tohave available on your installation.<p>Note that such modification is only supported on Qt/Embeddedplatforms, where reducing the size of Qt isimportant and the application-set is often fixed.<p>The <tt>config.h</tt> definition file simply defines macros to disablefeatures.  Some features are dependent on other features and thesedependencies are expressed in <tt>qfeatures.h</tt>.<p>The available options are:<p><table><tr><th><big>Macro</big><th><big>Disables</big><th><big>Set automatically by</big><tr><th colspan=3>Images - <a href="qimageio.html">QImageIO</a><tr><td valign=top>QT_NO_IMAGEIO_BMP <td valign=top>    The Microsoft Bitmap image file format.<tr><td valign=top>QT_NO_IMAGEIO_PPM <td valign=top>    The Portable Pixmap image file format.<tr><td valign=top>QT_NO_IMAGEIO_XBM <td valign=top>    The X11 Bitmap image file format.<tr><td valign=top>QT_NO_IMAGEIO_XPM <td valign=top>    The X11 Pixmap image file format.<tr><td valign=top>QT_NO_IMAGEIO_PNG <td valign=top>    The Portable Network Graphics image file format.<p><tr><th colspan=3>Animation<tr><td valign=top>QT_NO_ASYNC_IO <td valign=top>    Asynchronous I/O - <a href="qasyncio.html">QAsyncIO</a><tr><td valign=top>QT_NO_ASYNC_IMAGE_IO <td valign=top>    Asynchronous Image I/O and GIF image support - <a href="qimagedecoder.html">QImageDecoder</a>, etc.<tr><td valign=top>QT_NO_MOVIE <td valign=top>    Animation support - <a href="qmovie.html">QMovie</a>    <td valign=top>QT_NO_ASYNC_IO, QT_NO_ASYNC_IMAGE_IO<p><tr><th colspan=3>Fonts<tr><td valign=top>QT_NO_TRUETYPE <td valign=top>    TrueType (TTF and TTC) font file format, only used by Qt/Embedded.<tr><td valign=top>QT_NO_BDF <td valign=top>    Bitmap Distribution Format (BDF) font file format, only used by Qt/Embedded.<tr><td valign=top>QT_NO_FONTDATABASE <td valign=top>    Font database.<p><tr><th colspan=3>Internationalization<p><tr><td valign=top>QT_NO_I18N <td valign=top>    Conversions between Unicode and 8-bit encodings.<tr><td valign=top>QT_NO_UNICODETABLES <td valign=top>    Large tables defining such things as upper and lowercase conversions    for all Unicode characters.<p><tr><th colspan=3>MIME<tr><td valign=top>QT_NO_MIME <td valign=top>    Multipurpose Internet Mail Extensions, an internet standard for encoding    and tagging typed data (eg. text, images, colors) - <a href="qmimesource.html">QMimeSource</a><tr><td valign=top>QT_NO_RICHTEXT <td valign=top>    HTML-like text - <a href="qstylesheet.html">QStyleSheet</a>, <a href="qlabel.html">QLabel</a>    <td valign=top>QT_NO_MIME<tr><td valign=top>QT_NO_DRAGANDDROP <td valign=top>    Drag-and-drop data between applications - <a href="qdragobject.html">QDragObject</a>    <td valign=top>QT_NO_MIME<tr><td valign=top>QT_NO_CLIPBOARD <td valign=top>    Cut-and-paste data between applications - <a href="qclipboard.html">QClipboard</a>    <td valign=top>QT_NO_MIME<p><tr><th colspan=3>Sound<tr><td valign=top>QT_NO_SOUND <td valign=top>    Playing audio files - <a href="qsound.html">QSound</a><p><tr><th colspan=3>Scipting<tr><td valign=top>QT_NO_PROPERTIES <td valign=top>    Scripting of Qt-based applications.<p><tr><th colspan=3>Qt/Embedded-specific<p><tr><td valign=top>QT_NO_QWS_CURSOR <td valign=top>    The cursor sprite on Qt/Embedded. Pen-operated devices would not    normally need this feature.<p><tr><td valign=top>QT_NO_QWS_DEPTH_8GRAYSCALE <td valign=top>    8-bit-per-pixel - 256 levels of gray.    Incompatible with QWS_DEPTH_8<p><tr><td valign=top>QT_NO_QWS_DEPTH_8 <td valign=top>    8-bit-per-pixel - 216-color color-cube with 40 auxiliary colors.    Incompatible with QWS_DEPTH_8GRAYSCALE.<p><tr><td valign=top>QT_NO_QWS_DEPTH_15 <td valign=top>    15-bit-per-pixel - 32 levels each of Red, Blue, and Green.<p><tr><td valign=top>QT_NO_QWS_DEPTH_16 <td valign=top>    16-bit-per-pixel - 32 levels each of Red and Blue, 64 of Green.<p><tr><td valign=top>QT_NO_QWS_DEPTH_32 <td valign=top>    32-bit-per-pixel - 256 levels for each of Red, Green, and Blue.<p><tr><td valign=top>QT_NO_QWS_MACH64 <td valign=top>    Mach64 accelerated driver (demonstration only)<p><tr><td valign=top>QT_NO_QWS_VFB <td valign=top>    Virtual framebuffer running on X11 (see reference documentation).<p><tr><th colspan=3>Networking<tr><td valign=top>QT_NO_NETWORKPROTOCOL <td valign=top>    Abstract multi-protocol data retrieval,    with local file retrieval included - <a href="qnetworkprotocol.html">QNetworkProtocol</a><p><tr><td valign=top>QT_NO_NETWORKPROTOCOL_FTP <td valign=top>    FTP-protocol data retrieval.    <td valign=top>QT_NO_NETWORKPROTOCOL<p><tr><td valign=top>QT_NO_NETWORKPROTOCOL_HTTP <td valign=top>    <td valign=top>QT_NO_NETWORKPROTOCOL    HTTP-protocol data retrieval.<p><tr><th colspan=3>Painting/drawing<tr><td valign=top>QT_NO_COLORNAMES <td valign=top>    Color names such as "red", used by some <a href="qcolor.html">QColor</a> constructors    and by some HTML documents - <a href="qcolor.html">QColor</a>, <a href="qstylesheet.html">QStyleSheet</a><p><tr><td valign=top>QT_NO_TRANSFORMATIONS <td valign=top>   // uses floating point    Used by a number of classes in Qt. With this, rotation and scaling    are possible. Without it, only co-ordinate translation - <a href="qwmatrix.html">QWMatrix</a><p><tr><td valign=top>QT_NO_PSPRINTER <td valign=top>    Postscript printer support.<p><tr><td valign=top>QT_NO_PRINTER <td valign=top>    Printer support - <a href="qprinter.html">QPrinter</a>    <td valign=top>QT_NO_PSPRINTER on Unix<p><tr><td valign=top>QT_NO_PICTURE <td valign=top>    Save Qt drawing commands to a files - <a href="qpicture.html">QPicture</a><p><tr><th colspan=3>Widgets<tr><td valign=top>QT_NO_WIDGETS <td valign=top>    Disabling this disables all widgets except <a href="qwidget.html">QWidget</a>.<p><tr><td valign=top>QT_NO_TEXTVIEW <td valign=top>    HTML document viewing - <a href="qtextview.html">QTextView</a>    <td valign=top>QT_NO_WIDGETS, QT_NO_RICHTEXT<p><tr><td valign=top>QT_NO_TEXTBROWSER <td valign=top>    HTML document browsing - <a href="qtextbrowser.html">QTextBrowser</a>    <td valign=top>QT_NO_TEXTVIEW<p><tr><td valign=top>QT_NO_ICONVIEW <td valign=top>    Labelled icons - <a href="qiconview.html">QIconView</a>    <td valign=top>QT_NO_WIDGETS, QT_NO_DRAGANDDROP<p><tr><td valign=top>QT_NO_LISTVIEW <td valign=top>    Lists of information - <a href="qlistview.html">QListView</a>    <td valign=top>QT_NO_WIDGETS<p><tr><td valign=top>QT_NO_CANVAS <td valign=top>    Object canvas - <a href="qcanvas.html">QCanvas</a>    <td valign=top>QT_NO_WIDGETS<p><tr><td valign=top>QT_NO_DIAL <td valign=top>    Value control - <a href="qdial.html">QDial</a>    <td valign=top>QT_NO_WIDGETS<p><tr><td valign=top>QT_NO_WORKSPACE <td valign=top>    Multi-document interface - <a href="qworkspace.html">QWorkspace</a>    <td valign=top>QT_NO_WIDGETS<p><tr><td valign=top>QT_NO_LCDNUMBER <td valign=top>    LCD-like number display - <a href="qlcdnumber.html">QLCDNumber</a>    <td valign=top>QT_NO_WIDGETS<p><tr><th colspan=3>GUI Styles<tr><td valign=top>QT_NO_STYLE_WINDOWS <td valign=top>    Microsoft Windows style - <a href="qwindowsstyle.html">QWindowsStyle</a>    <td valign=top>QT_NO_WIDGETS<tr><td valign=top>QT_NO_STYLE_MOTIF <td valign=top>    OSF Motif style - <a href="qmotifstyle.html">QMotifStyle</a>    <td valign=top>QT_NO_WIDGETS<tr><td valign=top>QT_NO_STYLE_CDE <td valign=top>    Open Group CDE style - <a href="qcdestyle.html">QCDEStyle</a>    <td valign=top>QT_NO_STYLE_MOTIF<tr><td valign=top>QT_NO_STYLE_PLATINUM <td valign=top>    MacOS X style - <a href="qplatinumstyle.html">QPlatinumStyle</a>    <td valign=top>QT_NO_WIDGETS<tr><td valign=top>QT_NO_STYLE_SGI <td valign=top>    SGI style - <a href="qsgistyle.html">QSGIStyle</a>    <td valign=top>QT_NO_STYLE_MOTIF<p><tr><th colspan=3>Dialogs<tr><td valign=top>QT_NO_DIALOGS <td valign=top>    Disabling this disables all common dialogs <a href="qwidget.html">QWidget</a>.    <td valign=top>QT_NO_WIDGETS<p><tr><td valign=top>QT_NO_FILEDIALOG <td valign=top>    The file selection dialog - <a href="qfiledialog.html">QFileDialog</a>    <td valign=top>QT_NO_DIALOGS, QT_NO_NETWORKPROTOCOL, QT_NO_LISTVIEW<p><tr><td valign=top>QT_NO_FONTDIALOG <td valign=top>    The font selection dialog - <a href="qfontdialog.html">QFontDialog</a>    <td valign=top>QT_NO_DIALOGS, QT_NO_FONTDATABASE<p><tr><td valign=top>QT_NO_COLORDIALOG <td valign=top>    The color selection dialog - <a href="qcolordialog.html">QColorDialog</a>    <td valign=top>QT_NO_DIALOGS<p><tr><td valign=top>QT_NO_PRINTDIALOG <td valign=top>    The print selection dialog - <a href="qprintdialog.html">QPrintDialog</a>    <td valign=top>QT_NO_DIALOGS, QT_NO_LISTVIEW<p><tr><td valign=top>QT_NO_INPUTDIALOG <td valign=top>    Text input dialog - <a href="qinputdialog.html">QInputDialog</a>    <td valign=top>QT_NO_DIALOGS<p><tr><td valign=top>QT_NO_MESSAGEBOX <td valign=top>    Message/prompting dialog - <a href="qmessagebox.html">QMessageBox</a>    <td valign=top>QT_NO_DIALOGS<p><tr><td valign=top>QT_NO_PROGRESSDIALOG <td valign=top>    Long-computation progress dialog - <a href="qprogressdialog.html">QProgressDialog</a>    <td valign=top>QT_NO_DIALOGS<p><tr><td valign=top>QT_NO_TABDIALOG <td valign=top>    Tabbed-pages dialog - <a href="qtabdialog.html">QTabDialog</a>    <td valign=top>QT_NO_DIALOGS<p><tr><td valign=top>QT_NO_WIZARD <td valign=top>    Multi-step dialog - <a href="qwizard.html">QWizard</a>    <td valign=top>QT_NO_DIALOGS<p></table><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright
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