faq23.htm

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<HTML>

<HEAD>

   <TITLE>Determine the location of the mouse.</TITLE>

   <META NAME="Author" CONTENT="Harold Howe">

</HEAD>

<BODY BGCOLOR="WHITE">



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<H3>

Determine the location of the mouse.

</H3>

<P>

 Call the API <TT>GetCursorPos</TT> function. You pass the function a

pointer to a windows <TT>POINT</TT> structure (in BCB, <TT>TPoint</TT> is the same

thing as the windows <TT>POINT</TT> structure). Here is a code example. To use

this code, create a new project, place a <TT>TLabel</TT> and a <TT>TTimer</TT>

on the form, and place the code inside the <TT>OnTimer</TT> event of the <TT>TTimer</TT>

control. The program will display the mouse coordinates as you move the mouse.

</P>

<pre>

    <b>void</b> <b>__fastcall</b> TForm1<b>:</b><b>:</b>Timer1Timer<b>(</b>TObject <b>*</b>Sender<b>)</b>

    <b>{</b>

      TPoint pt<b>;</b>

      GetCursorPos<b>(</b><b>&</b>pt<b>)</b><b>;</b>



      Label1<b>-></b>Caption <b>=</b> <font color="blue">"("</font> <b>+</b>

                        IntToStr<b>(</b>pt<b>.</b>x<b>)</b> <b>+</b>

                        <font color="blue">")("</font> <b>+</b>

                        IntToStr<b>(</b>pt<b>.</b>y<b>)</b> <b>+</b>

                        <font color="blue">")"</font><b>;</b>

    <b>}</b>

</pre>



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