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<?xml version="1.0" encoding="ISO-8859-1"?>
<fpdoc-descriptions>
<package name="rtl">
<!--
====================================================================
wincrt
====================================================================
-->
<module name="wincrt">
<short>Auxiliary windows routines for the graph unit</short>
<descr>
The <file>wincrt</file> unit provides some auxiliary routines for use with
the <link id="#rtl.graph">graph</link> unit, namely keyboard support.
It has no connection with the <link id="#rtl.crt">crt</link> unit, nor
with the Turbo-Pascal for Windows <file>WinCrt</file> unit. As such,
it should not be used by end users.
Refer to the <link id="#rtl.crt">crt</link> unit instead.
</descr>
<!-- function Visibility: default -->
<element name="readkey">
<short>Read a key from the keyboard</short>
<descr>
<p>
<var>ReadKey</var> reads a key from the keyboard, and returns the ASCII
value of the key, or the scancode of the key in case it is a special key.
</p>
<p>
The function waits until a key is pressed.
</p>
</descr>
<seealso>
<link id="KeyPressed"/>
</seealso>
</element>
<!-- function result Visibility: default -->
<element name="readkey.Result">
<short>The pressed key</short>
</element>
<!-- function Visibility: default -->
<element name="keypressed">
<short>Check if a key was pressed.</short>
<descr>
<var>KeyPressed</var> returns <var>True</var> if the user pressed a key, or
<var>False</var> if not. It does not wait for the user to press a key.
</descr>
<seealso>
<link id="readkey"/>
</seealso>
</element>
<!-- function result Visibility: default -->
<element name="keypressed.Result">
<short><var>True</var> if the user pressed a key, <var>false</var> if not.</short>
</element>
<!-- procedure Visibility: default -->
<element name="delay">
<short>Pause program execution</short>
<descr>
<var>Delay</var> stops program execution for the indicated number
<var>ms</var> of milliseconds.
</descr>
<seealso>
<link id="sound"/>
<link id="nosound"/>
</seealso>
</element>
<!-- argument Visibility: default -->
<element name="delay.ms">
<short>Number of milliseconds to wait</short>
</element>
<!-- procedure Visibility: default -->
<element name="textmode">
<short>Set indicated text mode</short>
<descr>
<var>TextMode</var> does nothing.
</descr>
</element>
<!-- argument Visibility: default -->
<element name="textmode.mode">
<short>Currently ignored</short>
</element>
<!-- procedure Visibility: default -->
<element name="sound">
<short>Sound PC speaker</short>
<descr>
<var>Sound</var> sounds the PC speaker. It emits a tone with frequency
<var>Hz</var> for 500 milliseconds. (the time argument is required
by the windows API)
</descr>
<seealso>
<link id="nosound"/>
</seealso>
</element>
<!-- argument Visibility: default -->
<element name="sound.hz">
<short>Frequency of sound</short>
</element>
<!-- procedure Visibility: default -->
<element name="nosound">
<short>Stop the speaker</short>
<descr>
<var>NoSound</var> does nothing, windows does not support this.
</descr>
<seealso>
<link id="sound"/>
</seealso>
</element>
<!-- variable Visibility: default -->
<element name="directvideo">
<short>Direct video access</short>
<descr>
On windows, this variable is ignored.
</descr>
</element>
<!-- variable Visibility: default -->
<element name="lastmode">
<short>Unused</short>
<descr>
Is supposed to contain the last used video mode, but is actually unused.
</descr>
</element>
</module> <!-- wincrt -->
</package>
</fpdoc-descriptions>
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