解决办法是Form类中定义一个静态的ActiveX对象,在formload中将界面上的ActiveX对象赋值给新定义的对象,类中访问该静态对象即可.
public static AxClientDriver_NTLib.AxClientDriverCtrl com = new AxClientDriver_NTLib.AxClientDriverCtrl();
private void Form1_Load(object sender, EventArgs e)
{
com = this.axClientDriverCtrl1;
isRunning = true;
this.FormClosing += Form1_FormClosing;
Thread t = new Thread(StartServer);
////t.SetApartmentState(ApartmentState.STA);//关键设置
t.Start();
}
public class A
{
public void GetZhiWen()
{
//new AxClientDriver_NTLib.AxClientDriverCtrl().GWQ_SignFinger(); /*报错:
当前线程不在单线程单元中，因此无法实例化 ActiveX 控件“f1b35062-91ea-47fd-a71e-872c114220b0”。System.Threading.ThreadStateException: 当前线程不在单线程单元中，因此无法实例化 ActiveX 控件“f1b35062-91ea-47fd-a71e-872c114220b0”。*/
Form1.com.GWQ_SignFinger();
}
}