📄 hgedata_state.html

📁 2D游戏引擎hge的代码

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<h1 style="margin-top:0px">HGE System state value class</h1>
<p>
<b>T</b>o change and obtain various <b>HGE</b> internal states the two functions are used:
<a href="hgefunc_systemsetstate.html">System_SetState</a> and <a href="hgefunc_systemgetstate.html">System_GetState</a>.
The <b>hgeValue</b> class serves to pass and receive a value of an arbitrary type.
</p>
<pre>
class hgeValue
{
public:
  hgeValue(int value);
  hgeValue(bool value);
  hgeValue(char *value);
  hgeValue(bool (*value)());

  int     <b>int_value</b>;
  bool    <b>bool_value</b>;
  char*   <b>string_value</b>;
  bool    (*<b>func_value</b>)();
};
</pre>
<p>
So, to pass a value of an arbitrary type to the <a href="hgefunc_systemsetstate.html">System_SetState</a>
function you may specify it directly in the call. And to receive an arbitrary value
returned by <a href="hgefunc_systemgetstate.html">System_GetState</a> function, you just
access the corresponding member of the returned <b>hgeValue</b> object.
</p>
<h2>Requirements</h2>
<p>
<b>Header:</b> hge.h
</p>
<h2>See also</h2>
<p>
<a href="hgefunc_systemsetstate.html">System_SetState</a>,
<a href="hgefunc_systemgetstate.html">System_GetState</a>
</p>
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