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<a href="#define-members">Macros</a> &#124;
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<div class="textblock"><code>#include &lt;<a class="el" href="stdint_8h_source.html">stdint.h</a>&gt;</code><br />
<code>#include &lt;types.h&gt;</code><br />
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<tr class="memitem:afb20967d61db0e3288edbc0c12e31728"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy</a> (<a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> x, <a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> y)</td></tr>
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<tr class="memitem:af36897dea18be4c65b69767be47b98e4"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="drawing_8h.html#af36897dea18be4c65b69767be47b98e4">color</a> (<a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> forecolor, <a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> backcolor, <a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> <a class="el" href="sms_8h.html#aa48d749c9b381d1c30fb864eda3eee9b">mode</a>)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>All Points Addressable (APA) mode drawing library.</p>
<p>Drawing routines originally by Pascal Felber Legendary overhall by Jon Fuge <a href="#" onclick="location.href='mai'+'lto:'+'jon'+'ny'+'@q-'+'co'+'nti'+'nu'+'um.'+'de'+'mon'+'.c'+'o.u'+'k'; return false;">jonny<span style="display: none;">.nosp@m.</span>@q-c<span style="display: none;">.nosp@m.</span>ontin<span style="display: none;">.nosp@m.</span>uum.<span style="display: none;">.nosp@m.</span>demon<span style="display: none;">.nosp@m.</span>.co.<span style="display: none;">.nosp@m.</span>uk</a> Commenting by Michael Hope</p>
<p>Note: The standard text <a class="el" href="stdio_8h.html#a79c1db3e4a2aaa60d5afa76f7d984d0b">printf()</a> and <a class="el" href="stdio_8h.html#a467c1e22595c1f0ce20eb2e73bce398b">putchar()</a> cannot be used in APA mode - use <a class="el" href="drawing_8h.html#a5f7a0ed309f9526e9be285146559848c">gprintf()</a> and <a class="el" href="drawing_8h.html#a57de178908d5dc3e574e666e4d4cb6a7">wrtchr()</a> instead.</p>
<p>Note: Using drawing.h will cause it's custom VBL and LCD ISRs (<code>drawing_vbl</code> and <code>drawing_lcd</code>) to be installed. Changing the mode (<code>mode(M_TEXT_OUT);</code>) will cause them to be de-installed.</p>
<p>The valid coordinate ranges are from (x,y) 0,0 to 159,143. There is no built-in clipping, so drawing outside valid coordinates will likely produce undesired results (wrapping/etc).</p>
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<p><b>Important note for the drawing API :</b></p>
<p>The Game Boy graphics hardware is not well suited to frame-buffer style graphics such as the kind provided in <code>drawing.h</code>. Due to that, <b>most drawing functions (rectangles, circles, etc) will be slow</b> . When possible it's much faster and more efficient to work with the tiles and tile maps that the Game Boy hardware is built around. </p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a9a07c448b4d721dbec2715f51727e099">&#9670;&nbsp;</a></span>GRAPHICS_WIDTH</h2>
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<td class="memname">#define GRAPHICS_WIDTH&#160;&#160;&#160;160</td>
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<p>Size of the screen in pixels </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa9909ac8ecb03cbb763258a8f98f4170">&#9670;&nbsp;</a></span>GRAPHICS_HEIGHT</h2>
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<td class="memname">#define GRAPHICS_HEIGHT&#160;&#160;&#160;144</td>
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<h2 class="memtitle"><span class="permalink"><a href="#aa8abfd58ea514228abd69d8f6330e91d">&#9670;&nbsp;</a></span>SOLID</h2>
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<td class="memname">#define SOLID&#160;&#160;&#160;0x00 /* Overwrites the existing pixels */</td>
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<p>Possible drawing modes </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a3363ca4d6d3cc0230b2804280591c991">&#9670;&nbsp;</a></span>OR</h2>
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<td class="memname">#define OR&#160;&#160;&#160;0x01 /* Performs a logical OR */</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a45cd11034d1a7d86c3a88d36f5e7f1ab">&#9670;&nbsp;</a></span>XOR</h2>
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<td class="memname">#define XOR&#160;&#160;&#160;0x02 /* Performs a logical XOR */</td>
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<td class="memname">#define AND&#160;&#160;&#160;0x03 /* Performs a logical AND */</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a87b537f5fa5c109d3c05c13d6b18f382">&#9670;&nbsp;</a></span>WHITE</h2>
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<td class="memname">#define WHITE&#160;&#160;&#160;0</td>
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<p>Possible drawing colours </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0ffe2221c8690dc80b5f9553474dd096">&#9670;&nbsp;</a></span>LTGREY</h2>
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<td class="memname">#define LTGREY&#160;&#160;&#160;1</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a4dad87d91b9201be3b4ede372f31ae8a">&#9670;&nbsp;</a></span>DKGREY</h2>
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<td class="memname">#define DKGREY&#160;&#160;&#160;2</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a7b3b25cba33b07c303f3060fe41887f6">&#9670;&nbsp;</a></span>BLACK</h2>
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<td class="memname">#define BLACK&#160;&#160;&#160;3</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a91d52443c77ee105bd68cb0b47a8ee49">&#9670;&nbsp;</a></span>M_NOFILL</h2>
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<td class="memname">#define M_NOFILL&#160;&#160;&#160;0</td>
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<p>Possible fill styles for <a class="el" href="drawing_8h.html#a6b7c3151e0778846aa31682ff69b01ac">box()</a> and <a class="el" href="drawing_8h.html#a24838f0ca44f1d69ff94b8f74097015d">circle()</a> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aad3d180e0f12d6a6e5278fe0163f4c3e">&#9670;&nbsp;</a></span>M_FILL</h2>
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<td class="memname">#define M_FILL&#160;&#160;&#160;1</td>
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<h2 class="memtitle"><span class="permalink"><a href="#a4dec4d9b2bace4f5bc6e6337f4086837">&#9670;&nbsp;</a></span>SIGNED</h2>
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<td class="memname">#define SIGNED&#160;&#160;&#160;1</td>
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<p>Possible values for signed_value in <a class="el" href="drawing_8h.html#aad4e32cc775320f61f61c0707aa86a23">gprintln()</a> and <a class="el" href="drawing_8h.html#a73925b79fb8d1cf6c40602b113913f25">gprintn()</a> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a08cbc66092284f7da94279f986a0aae9">&#9670;&nbsp;</a></span>UNSIGNED</h2>
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<td class="memname">#define UNSIGNED&#160;&#160;&#160;0</td>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aef65e5faa0adb82768fca06aafbe50e8">&#9670;&nbsp;</a></span>gprint()</h2>
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<td class="memname">void gprint </td>
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<p>Print the string 'str' with no interpretation </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#aad4e32cc775320f61f61c0707aa86a23">&#9670;&nbsp;</a></span>gprintln()</h2>
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<td class="memname">void gprintln </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#a66634143db08bebe9b46ab4cb1fc6fd3">int16_t</a>&#160;</td>
<td class="paramname"><em>number</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>&#160;</td>
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<p>Print 16 bit <b>number</b> in <b>radix</b> (base) in the default font at the current text position.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">number</td><td>number to print </td></tr>
<tr><td class="paramname">radix</td><td>radix (base) to print with </td></tr>
<tr><td class="paramname">signed_value</td><td>should be set to SIGNED or UNSIGNED depending on whether the number is signed or not</td></tr>
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<p>The current position is advanced by the numer of characters printed. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a73925b79fb8d1cf6c40602b113913f25">&#9670;&nbsp;</a></span>gprintn()</h2>
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<td class="memname">void gprintn </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>&#160;</td>
<td class="paramname"><em>number</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>&#160;</td>
<td class="paramname"><em>radix</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a>&#160;</td>
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<p>Print 8 bit <b>number</b> in <b>radix</b> (base) in the default font at the current text position.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#aad4e32cc775320f61f61c0707aa86a23">gprintln()</a>, <a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a5f7a0ed309f9526e9be285146559848c">&#9670;&nbsp;</a></span>gprintf()</h2>
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<td class="memname"><a class="el" href="stdint_8h.html#aef44329758059c91c76d334e8fc09700">int8_t</a> gprintf </td>
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<p>Print the string and arguments given by <b>fmt</b> with arguments __...__</p>
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<tr><td class="paramname">fmt</td><td>The format string as per printf </td></tr>
<tr><td class="paramname">...</td><td>params</td></tr>
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<p>Currently supported: </p><ul>
<li>%c (character) </li>
<li>%u (int) </li>
<li>%d (int8_t) </li>
<li>%o (int8_t as octal) </li>
<li>%x (int8_t as hex) </li>
<li>%s (string)</li>
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<dl class="section return"><dt>Returns</dt><dd>Returns the number of items printed, or -1 if there was an error. </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a7ff51a226a56b4813f595892f1ae31d3">&#9670;&nbsp;</a></span>plot()</h2>
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<td class="memname">void plot </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>colour</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>mode</em>&#160;</td>
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<p>Old style plot - try <a class="el" href="drawing_8h.html#af357a92be4a6864d46c28f9530e61429">plot_point()</a> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#af357a92be4a6864d46c28f9530e61429">&#9670;&nbsp;</a></span>plot_point()</h2>
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<td class="memname">void plot_point </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y</em>&#160;</td>
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<p>Plot a point in the current drawing mode and colour at <b>x,y</b> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#aedd9c98ab95b4b4fab93bf1d00e3f01b">&#9670;&nbsp;</a></span>switch_data()</h2>
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<td class="memname">void switch_data </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *&#160;</td>
<td class="paramname"><em>src</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *&#160;</td>
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<p>Exchanges the tile on screen at x,y with the tile pointed by src, original tile is saved in dst. Both src and dst may be NULL - saving or copying to screen is not performed in this case. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a16075b2ab6621bfc1694cc1a92e3df2b">&#9670;&nbsp;</a></span>draw_image()</h2>
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<td class="memname">void draw_image </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> *&#160;</td>
<td class="paramname"><em>data</em></td><td>)</td>
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<p>Draw a full screen image at <b>data</b> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0d0306ae7aafbbf9439e26c85d96e02b">&#9670;&nbsp;</a></span>line()</h2>
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<td class="memname">void line </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>x1</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y1</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<p>Draw a line in the current drawing mode and colour from <b>x1,y1</b> to <b>x2,y2</b> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6b7c3151e0778846aa31682ff69b01ac">&#9670;&nbsp;</a></span>box()</h2>
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<td class="memname">void box </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>x1</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y1</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y2</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<p>Draw a box (rectangle) with corners <b>x1,y1</b> and <b>x2,y2</b> using fill mode <b>style</b> (one of NOFILL or FILL) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a24838f0ca44f1d69ff94b8f74097015d">&#9670;&nbsp;</a></span>circle()</h2>
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<td class="memname">void circle </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>x</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>y</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>radius</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<p>Draw a circle with centre at <b>x,y</b> and <b>radius</b> using fill mode <b>style</b> (one of NOFILL or FILL) </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a93ff760a96e4fbbd42487d0d97bcb3db">&#9670;&nbsp;</a></span>getpix()</h2>
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<td class="memname"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a> getpix </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>x</em>, </td>
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<p>Returns the current colour of the pixel at <b>x,y</b> </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a57de178908d5dc3e574e666e4d4cb6a7">&#9670;&nbsp;</a></span>wrtchr()</h2>
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<td class="memname">void wrtchr </td>
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<p>Prints the character <b>chr</b> in the default font at the current text position.</p>
<p>The current position is advanced by 1 after the character is printed. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#afb20967d61db0e3288edbc0c12e31728">gotogxy()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#afb20967d61db0e3288edbc0c12e31728">&#9670;&nbsp;</a></span>gotogxy()</h2>
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<td class="memname">void gotogxy </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<p>Sets the current text position to <b>x,y</b>.</p>
<p>Note: <b>x</b> and <b>y</b> have units of tiles (8 pixels per unit) </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="drawing_8h.html#a57de178908d5dc3e574e666e4d4cb6a7">wrtchr()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#af36897dea18be4c65b69767be47b98e4">&#9670;&nbsp;</a></span>color()</h2>
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<td class="memname">void color </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>forecolor</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
<td class="paramname"><em>backcolor</em>, </td>
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<td class="paramtype"><a class="el" href="stdint_8h.html#aba7bc1797add20fe3efdf37ced1182c5">uint8_t</a>&#160;</td>
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<p>Set the current <b>foreground</b> colour (for pixels), <b>background</b> colour, and draw <b>mode</b> </p>
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