ZealOS/docs/Demo/Graphics/Grid.ZC.html
2021-12-11 06:10:58 -05:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF0>#</span><span class=cF1>define</span><span class=cF0> GRID </span><span class=cFE>5</span><span class=cF0>
<a name="l2"></a>
<a name="l3"></a></span><span class=cF1>U0</span><span class=cF0> DrawMyMouse(</span><span class=cF9>CDC</span><span class=cF0> *dc, </span><span class=cF9>I64</span><span class=cF0> x, </span><span class=cF9>I64</span><span class=cF0> y)
<a name="l4"></a>{
<a name="l5"></a> dc-&gt;thick = </span><span class=cFE>1</span><span class=cF0>;
<a name="l6"></a> dc-&gt;flags &amp;= ~(</span><span class=cF3>DCF_TRANSFORMATION</span><span class=cF0> | </span><span class=cF3>DCF_SYMMETRY</span><span class=cF0>);
<a name="l7"></a> </span><span class=cF5>GrRect</span><span class=cF0>(dc, x, y, GRID, GRID);
<a name="l8"></a>}
<a name="l9"></a>
<a name="l10"></a></span><span class=cF1>U0</span><span class=cF0> GridDemo()
<a name="l11"></a>{
<a name="l12"></a> </span><span class=cF9>CGridGlobals</span><span class=cF0> old_grid;
<a name="l13"></a> </span><span class=cF1>U0</span><span class=cF0> (*old_draw_mouse)(</span><span class=cF9>CDC</span><span class=cF0> *dc, </span><span class=cF9>I64</span><span class=cF0> x, </span><span class=cF9>I64</span><span class=cF0> y); </span><span class=cF2>//Can't init this type of variable.</span><span class=cF0>
<a name="l14"></a>
<a name="l15"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(&amp;old_grid, &amp;</span><span class=cFB>mouse_grid</span><span class=cF0>, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CGridGlobals</span><span class=cF7>)</span><span class=cF0>);
<a name="l16"></a> </span><span class=cF5>GridInit</span><span class=cF0>;
<a name="l17"></a> </span><span class=cFB>mouse_grid</span><span class=cF0>.snap = </span><span class=cF3>TRUE</span><span class=cF0>; </span><span class=cF2>//You can set other </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l3726"><span class=cF4>stuff</span></a><span class=cF2>.</span><span class=cF0>
<a name="l18"></a> </span><span class=cFB>mouse_grid</span><span class=cF0>.x = GRID;
<a name="l19"></a> </span><span class=cFB>mouse_grid</span><span class=cF0>.y = GRID;
<a name="l20"></a> old_draw_mouse = </span><span class=cFB>gr</span><span class=cF0>.fp_draw_mouse;
<a name="l21"></a> </span><span class=cFB>gr</span><span class=cF0>.fp_draw_mouse = &amp;DrawMyMouse;
<a name="l22"></a> </span><span class=cF1>while</span><span class=cF0> (!</span><span class=cFB>mouse</span><span class=cF0>.lb)
<a name="l23"></a> </span><span class=cF7>{</span><span class=cF2>//Left button to exit.</span><span class=cF0>
<a name="l24"></a> </span><span class=cF5>GrPlot</span><span class=cF0>(, </span><span class=cFB>mouse</span><span class=cF0>.pos.x, </span><span class=cFB>mouse</span><span class=cF0>.pos.y);
<a name="l25"></a> </span><span class=cF5>Yield</span><span class=cF0>;
<a name="l26"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l27"></a> </span><span class=cF5>DCFill</span><span class=cF0>;
<a name="l28"></a> </span><span class=cFB>gr</span><span class=cF0>.fp_draw_mouse = old_draw_mouse;
<a name="l29"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(&amp;</span><span class=cFB>mouse_grid</span><span class=cF0>, &amp;old_grid, </span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CGridGlobals</span><span class=cF7>)</span><span class=cF0>);
<a name="l30"></a>}
<a name="l31"></a>
<a name="l32"></a>GridDemo;
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