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<title>KeyDownEvent struct Reference</title>
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<hr><h1>KeyDownEvent Struct Reference</h1>Information about key presses.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="system_8h-source.html">system.h</a>></code>
<p>
<a href="structKeyDownEvent-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Public Attributes</h2></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="ttypes_8h.html#a3">ulong</a> </td><td valign=bottom><a class="el" href="structKeyDownEvent.html#m2">controlKeyState</a></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="ttypes_8h.html#a0">ushort</a> </td><td valign=bottom><a class="el" href="structKeyDownEvent.html#m0">keyCode</a></td></tr>
<tr><td nowrap align=right valign=top><a class="el" href="structCharScanType.html">CharScanType</a> </td><td valign=bottom><a class="el" href="structKeyDownEvent.html#m1">charScan</a></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
This structure stores information about key presses.
<p>
The KeyDownEvent structure is a union of keyCode (a ushort) and charScan (of type struct <a class="el" href="structCharScanType.html">CharScanType</a>). These two members represent two ways of viewing the same data: either as a scan code or as a key code.
<p>
Scan codes are what your program receives from the keyboard, while key codes are usually needed in a switch statement.
<p>
See file `<a class="el" href="tkeys_8h.html">tkeys.h</a>' for a list of keycodes. <dl compact><dt><b>See also: </b></dt><dd>
<a class="el" href="structTEvent.html">TEvent</a> </dl>
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<p>
Definition at line <a class="el" href="system_8h-source.html#l00239">239</a> of file <a class="el" href="system_8h-source.html">system.h</a>.<hr><h2>Member Data Documentation</h2>
<a name="m1" doxytag="KeyDownEvent::charScan"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="structCharScanType.html">CharScanType</a> KeyDownEvent::charScan
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The same as above, but splitted in its two components. <dl compact><dt><b>See also: </b></dt><dd>
<a class="el" href="structCharScanType.html">CharScanType</a> </dl>
<p>
Definition at line <a class="el" href="system_8h-source.html#l00254">254</a> of file <a class="el" href="system_8h-source.html">system.h</a>. </td>
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<a name="m2" doxytag="KeyDownEvent::controlKeyState"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="ttypes_8h.html#a3">ulong</a> KeyDownEvent::controlKeyState
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<p>
Stores the status of the control keys when the event happened. The following values define keyboard states, and can be used when examining the keyboard shift state:
<p>
<pre>
Constant Value Meaning
kbRightShift 0x0001 Set if the Right Shift key is currently down
kbLeftShift 0x0002 Set if the Left Shift key is currently down
kbCtrlShift 0x0004 Set if the Ctrl key is currently down
kbAltShift 0x0008 Set if the Alt key is currently down
kbScrollState 0x0010 Set if the keyboard is in the Scroll Lock state
kbNumState 0x0020 Set if the keyboard is in the Num Lock state
kbCapsState 0x0040 Set if the keyboard is in the Caps Lock state
kbInsState 0x0080 Set if the keyboard is in the Ins Lock state
</pre>
<p>
Its value is 0 if none of these keys was pressed. Warning: this information is not reliable. Its value depends on your operating system and libraries (gpm, ncurses). Usually only a subset of these flags are detected. See file `system.cc' for details.
<p>
Definition at line <a class="el" href="system_8h-source.html#l00279">279</a> of file <a class="el" href="system_8h-source.html">system.h</a>. </td>
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<a name="m0" doxytag="KeyDownEvent::keyCode"></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="ttypes_8h.html#a0">ushort</a> KeyDownEvent::keyCode
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This is the key code.
<p>
It is the concatenation of the scan code and the character code. <dl compact><dt><b>See also: </b></dt><dd>
<a class="el" href="structCharScanType.html">CharScanType</a> </dl>
<p>
Definition at line <a class="el" href="system_8h-source.html#l00249">249</a> of file <a class="el" href="system_8h-source.html">system.h</a>. </td>
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<hr>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="system_8h-source.html">system.h</a></ul>
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