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引用Microsoft Internet Controls
private void Form1_Load(object sender, EventArgs e)
{
this.webBrowser1.Navigate("http://www.baidu.com");
}
private int v = 100;
private void button1_Click(object sender, EventArgs e)
{
v += 10;
object value = v;
object obj = null;
(webBrowser1.ActiveXInstance as SHDocVw.WebBrowser).ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, ref value, ref obj);
}
private void button2_Click(object sender, EventArgs e)
{
v -= 10;
object value = v;
object obj = null;
(webBrowser1.ActiveXInstance as SHDocVw.WebBrowser).ExecWB(SHDocVw.OLECMDID.OLECMDID_OPTICAL_ZOOM, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, ref value, ref obj);
}