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197 lines
12 KiB
197 lines
12 KiB
14 years ago
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/dialogs/qinputdialog.cpp:65 -->
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>QInputDialog Class</title>
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Functions</font></a>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QInputDialog Class Reference</h1>
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<p>The QInputDialog class provides a simple convenience dialog to get a single value from the user.
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<a href="#details">More...</a>
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<p><tt>#include <<a href="qinputdialog-h.html">qinputdialog.h</a>></tt>
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<p>Inherits <a href="qdialog.html">QDialog</a>.
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<p><a href="qinputdialog-members.html">List of all member functions.</a>
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<h2>Static Public Members</h2>
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<ul>
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<li class=fn>QString <a href="#getText"><b>getText</b></a> ( const QString & caption, const QString & label, QLineEdit::EchoMode mode = QLineEdit::Normal, const QString & text = QString::null, bool * ok = 0, QWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn>int <a href="#getInteger"><b>getInteger</b></a> ( const QString & caption, const QString & label, int value = 0, int minValue = -2147483647, int maxValue = 2147483647, int step = 1, bool * ok = 0, QWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn>double <a href="#getDouble"><b>getDouble</b></a> ( const QString & caption, const QString & label, double value = 0, double minValue = -2147483647, double maxValue = 2147483647, int decimals = 1, bool * ok = 0, QWidget * parent = 0, const char * name = 0 )</li>
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<li class=fn>QString <a href="#getItem"><b>getItem</b></a> ( const QString & caption, const QString & label, const QStringList & list, int current = 0, bool editable = TRUE, bool * ok = 0, QWidget * parent = 0, const char * name = 0 )</li>
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</ul>
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<hr><a name="details"></a><h2>Detailed Description</h2>
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The QInputDialog class provides a simple convenience dialog to get a single value from the user.
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<p> The input value can be a string, a number or an item from a list. A
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label must be set to tell the user what they should enter.
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<p> Four static convenience functions are provided:
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<a href="#getText">getText</a>(), <a href="#getInteger">getInteger</a>(), <a href="#getDouble">getDouble</a>() and <a href="#getItem">getItem</a>(). All the
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functions can be used in a similar way, for example:
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<pre>
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bool ok;
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<a href="qstring.html">QString</a> text = QInputDialog::<a href="#getText">getText</a>(
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"MyApp 3000", "Enter your name:", QLineEdit::Normal,
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<a href="qstring.html#QString-null">QString::null</a>, &ok, this );
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if ( ok && !text.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
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// user entered something and pressed OK
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} else {
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// user entered nothing or pressed Cancel
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}
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</pre>
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<p> <center><img src="inputdialogs.png" alt="Input Dialogs"></center> <p>See also <a href="dialogs.html">Dialog Classes</a>.
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<hr><h2>Member Function Documentation</h2>
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<h3 class=fn>double <a name="getDouble"></a>QInputDialog::getDouble ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & label, double value = 0, double minValue = -2147483647, double maxValue = 2147483647, int decimals = 1, bool * ok = 0, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )<tt> [static]</tt>
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</h3>
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Static convenience function to get a floating point number from
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the user. <em>caption</em> is the text which is displayed in the title
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bar of the dialog. <em>label</em> is the text which is shown to the user
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(it should say what should be entered). <em>value</em> is the default
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floating point number that the line edit will be set to. <em>minValue</em> and <em>maxValue</em> are the minimum and maximum values the
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user may choose, and <em>decimals</em> is the maximum number of decimal
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places the number may have.
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<p> If <em>ok</em> is not-null <em>*</em><em>ok</em> will be set to TRUE if the user
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pressed OK and to FALSE if the user pressed Cancel. The dialog's
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parent is <em>parent</em>; the dialog is called <em>name</em>. The dialog will
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be modal.
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<p> This function returns the floating point number which has been
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entered by the user.
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<p> Use this static function like this:
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<p> <pre>
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bool ok;
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double res = QInputDialog::<a href="#getDouble">getDouble</a>(
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"MyApp 3000", "Enter a decimal number:", 33.7, 0,
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1000, 2, &ok, this );
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if ( ok ) {
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// user entered something and pressed OK
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} else {
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// user pressed Cancel
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}
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</pre>
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<h3 class=fn>int <a name="getInteger"></a>QInputDialog::getInteger ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & label, int value = 0, int minValue = -2147483647, int maxValue = 2147483647, int step = 1, bool * ok = 0, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )<tt> [static]</tt>
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</h3>
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Static convenience function to get an integer input from the
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user. <em>caption</em> is the text which is displayed in the title bar
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of the dialog. <em>label</em> is the text which is shown to the user
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(it should say what should be entered). <em>value</em> is the default
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integer which the spinbox will be set to. <em>minValue</em> and <em>maxValue</em> are the minimum and maximum values the user may choose,
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and <em>step</em> is the amount by which the values change as the user
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presses the arrow buttons to increment or decrement the value.
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<p> If <em>ok</em> is not-null *<em>ok</em> will be set to TRUE if the user
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pressed OK and to FALSE if the user pressed Cancel. The dialog's
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parent is <em>parent</em>; the dialog is called <em>name</em>. The dialog will
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be modal.
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<p> This function returns the integer which has been entered by the user.
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<p> Use this static function like this:
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<p> <pre>
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bool ok;
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int res = QInputDialog::<a href="#getInteger">getInteger</a>(
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"MyApp 3000", "Enter a number:", 22, 0, 1000, 2,
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&ok, this );
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if ( ok ) {
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// user entered something and pressed OK
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} else {
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// user pressed Cancel
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}
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</pre>
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<h3 class=fn><a href="qstring.html">QString</a> <a name="getItem"></a>QInputDialog::getItem ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & label, const <a href="qstringlist.html">QStringList</a> & list, int current = 0, bool editable = TRUE, bool * ok = 0, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )<tt> [static]</tt>
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</h3>
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Static convenience function to let the user select an item from a
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string list. <em>caption</em> is the text which is displayed in the title
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bar of the dialog. <em>label</em> is the text which is shown to the user (it
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should say what should be entered). <em>list</em> is the
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string list which is inserted into the combobox, and <em>current</em> is the number
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of the item which should be the current item. If <em>editable</em> is TRUE
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the user can enter their own text; if <em>editable</em> is FALSE the user
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may only select one of the existing items.
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<p> If <em>ok</em> is not-null <em>*</em><em>ok</em> will be set to TRUE if the user
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pressed OK and to FALSE if the user pressed Cancel. The dialog's
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parent is <em>parent</em>; the dialog is called <em>name</em>. The dialog will
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be modal.
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<p> This function returns the text of the current item, or if <em>editable</em> is TRUE, the current text of the combobox.
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<p> Use this static function like this:
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<p> <pre>
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<a href="qstringlist.html">QStringList</a> lst;
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lst << "First" << "Second" << "Third" << "Fourth" << "Fifth";
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bool ok;
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<a href="qstring.html">QString</a> res = QInputDialog::<a href="#getItem">getItem</a>(
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"MyApp 3000", "Select an item:", lst, 1, TRUE, &ok,
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this );
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if ( ok ) {
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// user selected an item and pressed OK
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} else {
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// user pressed Cancel
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}
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</pre>
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<h3 class=fn><a href="qstring.html">QString</a> <a name="getText"></a>QInputDialog::getText ( const <a href="qstring.html">QString</a> & caption, const <a href="qstring.html">QString</a> & label, <a href="qlineedit.html#EchoMode-enum">QLineEdit::EchoMode</a> mode = QLineEdit::Normal, const <a href="qstring.html">QString</a> & text = QString::null, bool * ok = 0, <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0 )<tt> [static]</tt>
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</h3>
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Static convenience function to get a string from the user. <em>caption</em> is the text which is displayed in the title bar of the
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dialog. <em>label</em> is the text which is shown to the user (it should
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say what should be entered). <em>text</em> is the default text which is
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placed in the line edit. The <em>mode</em> is the echo mode the line edit
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will use. If <em>ok</em> is not-null <em>*</em><em>ok</em> will be set to TRUE if the
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user pressed OK and to FALSE if the user pressed Cancel. The
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dialog's parent is <em>parent</em>; the dialog is called <em>name</em>. The
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dialog will be modal.
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<p> This function returns the text which has been entered in the line
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edit. It will not return an empty string.
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<p> Use this static function like this:
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<p> <pre>
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bool ok;
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<a href="qstring.html">QString</a> text = QInputDialog::<a href="#getText">getText</a>(
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"MyApp 3000", "Enter your name:", QLineEdit::Normal,
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<a href="qstring.html#QString-null">QString::null</a>, &ok, this );
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if ( ok && !text.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
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// user entered something and pressed OK
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} else {
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// user entered nothing or pressed Cancel
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}
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</pre>
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<!-- eof -->
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<hr><p>
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This file is part of the <a href="index.html">Qt toolkit</a>.
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Copyright © 1995-2007
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<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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