private void bnBuzzerOff_Click(object sender, EventArgs e) { uint uRet = BuzzerDll.epcBuzzerOff(); /* 使蜂鸣器一直蜂鸣 */ if (uRet == 0) { MessageBox.Show("蜂鸣器禁止失败"); } }
private void bnBeepFive_Click(object sender, EventArgs e) { uint bRet = BuzzerDll.epcBuzzerBeeps(5, 200, 200); /* 蜂鸣器鸣叫5次 */ if (bRet == 0) { MessageBox.Show("蜂鸣器鸣叫失败"); } }
private void bnBuzzerState_Click(object sender, EventArgs e) { uint dwStatus = BuzzerDll.epcBuzzerGetStatus(); /* 读蜂鸣器状态 */ if (dwStatus > 1) { MessageBox.Show("读蜂鸣器状态失败"); return; } if (dwStatus == 0) { MessageBox.Show("蜂鸣器处于蜂鸣状态"); } else { MessageBox.Show("蜂鸣器处于禁止状态"); } }