關於串口編程的一些總結

     串口通訊兩種方式:

         1.被動接收(我是這樣稀稱呼),即串口通訊設被不停的發送有起始位和接收位的數據.而程式收到數據後根據接收位和起始位,將數據剝出來.進行處理.我給地磅寫的就是利用這種(後面貼出原碼).

  1using System;
  2using System.Drawing;
  3using System.Collections;
  4using System.ComponentModel;
  5using System.Windows.Forms;
  6using System.Data;
  7using System.IO;
  8namespace weight
  9{
 10    /**//// <summary>
 11    /// Form1 的摘要描述。
 12    /// </summary>
 13    public class Form1 : System.Windows.Forms.Form
 14    {
 15        private AxMSCommLib.AxMSComm comm;
 16        
 17        bool cop=false;
 18        bool ctrlcop=false;
 19        string strCollect="";
 20         int iswrite=0;
 21        int btnum=0;
 22        /**//// <summary>
 23        /// 設計工具所需的變數。
 24        /// </summary>
 25        private System.ComponentModel.Container components = null;
 26        public Form1()
 27        {
 28            //
 29            // Windows Form 設計工具支援的必要項
 30            //
 31            InitializeComponent();
 32
 33            //
 34            // TODO: 在 InitializeComponent 呼叫之後加入任何建構函式程式碼
 35            //
 36        }
 37
 38        /**//// <summary>
 39        /// 清除任何使用中的資源。
 40        /// </summary>
 41        protected override void Dispose( bool disposing )
 42        {
 43            if( disposing )
 44            {
 45                if (components != null) 
 46                {
 47                    components.Dispose();
 48                }
 49            }
 50            base.Dispose( disposing );
 51        }
 52
 53        Windows Form 設計工具產生的程式碼#region Windows Form 設計工具產生的程式碼
 54        /**//// <summary>
 55        /// 此為設計工具支援所必須的方法 - 請勿使用程式碼編輯器修改
 56        /// 這個方法的內容。
 57        /// </summary>
 58        private void InitializeComponent()
 59        {
 60            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
 61            this.comm = new AxMSCommLib.AxMSComm();
 62            ((System.ComponentModel.ISupportInitialize)(this.comm)).BeginInit();
 63            this.SuspendLayout();
 64            // 
 65            // comm
 66            // 
 67            this.comm.Enabled = true;
 68            this.comm.Location = new System.Drawing.Point(72, 0);
 69            this.comm.Name = "comm";
 70            this.comm.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("comm.OcxState")));
 71            this.comm.Size = new System.Drawing.Size(38, 38);
 72            this.comm.TabIndex = 0;
 73            this.comm.OnComm += new System.EventHandler(this.axMSComm1_OnComm);
 74            // 
 75            // Form1
 76            // 
 77            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
 78            this.ClientSize = new System.Drawing.Size(256, 174);
 79            this.Controls.Add(this.comm);
 80            this.MaximizeBox = false;
 81            this.Name = "Form1";
 82            this.Opacity = 0;
 83            this.Text = "Form1";
 84            this.WindowState = System.Windows.Forms.FormWindowState.Minimized;
 85            this.Disposed += new System.EventHandler(this.Form1_Disposed);
 86            this.Load += new System.EventHandler(this.Form1_Load);
 87            this.Activated += new System.EventHandler(this.Form1_Activated);
 88            ((System.ComponentModel.ISupportInitialize)(this.comm)).EndInit();
 89            this.ResumeLayout(false);
 90
 91        }
 92        #endregion
 93
 94        /**//// <summary>
 95        /// 應用程式的主進入點。
 96        /// </summary>
 97        [STAThread]
 98        static void Main() 
 99        {
100            Form f = new Form1();
101            f.ShowInTaskbar=false;
102                Application.Run(f);
103        }
104
105        private void axMSComm1_OnComm(object sender, System.EventArgs e)
106        {
107        
108            
109            byte [] bt;
110            char  chBegin='\u0002';
111            char  chEnd='\u0003';
112            bool ctrlCp=true;
113            bt=(byte [])comm.Input;
114            comm.InBufferCount=0;
115                comm.OutBufferCount=0;
116            string strIn;
117            
118            strIn=System.Text.ASCIIEncoding.ASCII.GetString(bt);
119            
120            for(int i=0;i<bt.Length;i++)
121            {
122                
123                if((char)bt[i]==chBegin)
124                {
125                    strIn=System.Text.ASCIIEncoding.ASCII.GetString(bt,i+1,10);
126                    strCollect+=strIn;
127                    break;
128                }
129                
130                
131
132            }
133
134        
135            if(strCollect.Length==10)
136            {
137                string str="";
138                try
139                {
140                    
141
142                    int wei=int.Parse(strCollect.Substring(7,1));
143            
144                
145                    switch(wei)
146                    {
147                        case 0: 
148                            str=strCollect.Substring(0,7);
149                            break;
150                        case 1:
151                            str=strCollect.Substring(0,6)+"."+strCollect.Substring(6,1);
152                            break;
153                        case 2:
154                            str=strCollect.Substring(0,5)+"."+strCollect.Substring(5,2);
155                            break;
156                        case 3:
157                            str=strCollect.Substring(0,4)+"."+strCollect.Substring(4,3);
158                            break;
159                        case 4:
160                            str=strCollect.Substring(0,3)+"."+strCollect.Substring(3,4);
161                            break;
162    
163                    }
164                    
165                    if(str.Length!=8) return;
166                    
167                    FileStream  fs=new FileStream("c:\\temp\\weight.txt",FileMode.Append,FileAccess.Write,FileShare.Write);
168                    fs.Close();
169                    StreamWriter sw=new StreamWriter("c:\\temp\\weight.txt",false,System.Text.Encoding.ASCII);
170                    sw.Write(str);
171                    sw.Close();
172                
173                        Application.Exit();
174                    
175                }
176                catch
177                {
178                        
179                    
180                }
181                finally
182                {
183                
184                    
185                    
186                    
187                }
188            }
189            else
190            {
191                    
192        
193                        
194                
195            }
196            
197        
198        }
199
200        private void Form1_Load(object sender, System.EventArgs e)
201        {
202            comm.PortOpen=true;
203            
204            comm.OutBufferCount=0;
205        
206
207        }
208
209    
210        private void Form1_Disposed(object sender, EventArgs e)
211        {
212            
213        }
214
215        private void Form1_Activated(object sender, System.EventArgs e)
216        {
217            this.Visible=false;
218        }
219
220        
221    }
222}
223

         2.命令應答.這種方式是程式和通訊設備進行交互:程式向設備發出供應商指定的命令,一般在說明書上有,設備跟據命令向程式返饋數據(後有原碼).代碼中有鍵盤鉤子,用於偵測用戶鍵盤計錄(copy他人的,稼接過來.忘具體名字了).

  

  11using System;
  2  2using System.Drawing;
  3  3using System.Collections;
  4  4using System.ComponentModel;
  5  5using System.Windows.Forms;
  6  6using System.Data;
  7  7using System.Threading;
  8  8using System.Runtime.InteropServices;
  9  9using System.Reflection;
 10 10
 11 11namespace ppcom
 12 12{
 13 13    /**//**//**//// <summary>
 14 14    /**//// Form1 的摘要描述。
 15 15    /**//// </summary>
 16 16    
 17 17    public class Form1 : System.Windows.Forms.Form
 18 18    {
 19 19        private System.Windows.Forms.TextBox textBox1;
 20 20        private System.Windows.Forms.Button button1;
 21 21        private System.Windows.Forms.Splitter splitter1;
 22 22        string strIn;
 23 23        string strNum="";
 24 24        private System.Windows.Forms.ComboBox cbRthread;
 25 25        private System.Windows.Forms.Label label1;
 26 26        private System.Windows.Forms.Label label2;
 27 27        private System.Windows.Forms.ComboBox comboBox1;
 28 28        private System.Windows.Forms.Label label3;
 29 29        private System.Windows.Forms.Label label4;
 30 30        private System.Windows.Forms.ComboBox comboBox2;
 31 31        private System.Windows.Forms.Label label5;
 32 32        bool clboard=true;//是否清空剪切板
 33 33        bool ctrlreset=true;
 34 34        
 35 35        bool ctrlKey=true,ctrlCaps=true,ctrlF1=true;
 36 36        private System.Windows.Forms.NotifyIcon notifyIcon1;
 37 37        private System.Windows.Forms.Label label6;
 38 38        private System.Windows.Forms.ComboBox cbSign;
 39 39        private AxMSCommLib.AxMSComm axMSComm1;
 40 40    
 41 41        private System.ComponentModel.IContainer components;
 42 42
 43 43        public Form1()
 44 44        {
 45 45            //
 46 46            // Windows Form 設計工具支援的必要項
 47 47            //
 48 48            InitializeComponent();
 49 49//            tb.KeyPress += new KeyPressEventHandler(keypressed);
 50 50
 51 51
 52 52            //
 53 53            // TODO: 在 InitializeComponent 呼叫之後加入任何建構函式程式碼
 54 54            //
 55 55            HookStart();
 56 56            
 57 57        }
 58 58        public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);
 59 59        static int hKeyboardHook = 0; 
 60 60        HookProc KeyboardHookProcedure;
 61 61
 62 62        public const int WH_KEYBOARD = 13;
 63 63        [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
 64 64        public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, 
 65 65            IntPtr hInstance, int threadId);
 66 66
 67 67        [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
 68 68        public static extern bool UnhookWindowsHookEx(int idHook);
 69 69        [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
 70 70        public static extern int CallNextHookEx(int idHook, int nCode, Int32 wParam, IntPtr lParam);  
 71 71        [DllImport("kernel32.dll")]
 72 72        static extern int GetCurrentThreadId(); 
 73 73
 74 74        public struct KeyMSG
 75 75        {
 76 76            public int vkCode;  
 77 77            public int scanCode; 
 78 78            public int flags;  
 79 79            public int time; 
 80 80            public int dwExtraInfo; 
 81 81        }
 82 82
 83 83        /**//**//**//**//**//**//**//// <summary>
 84 84        /**////
 85 85        /**//// </summary>
 86 86        /**//// <param name="nCode"></param>
 87 87        /**//// <param name="wParam"></param>
 88 88        /**//// <param name="lParam"></param>
 89 89        /**//// <returns></returns>
 90 90        /**//// 
 91 91        private int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
 92 92        {    
 93 93            
 94 94            KeyMSG m = (KeyMSG) Marshal.PtrToStructure(lParam, typeof(KeyMSG));
 95 95            
 96 96            if ((int) m.vkCode == 113)
 97 97            {    
 98 98            
 99 99                
100100                axMSComm1.Output="CR00\r\n";
101101                axMSComm1.OutBufferCount=0;
102102
103103            }
104104            if ((int) m.vkCode == 20)
105105            {    
106106                if(ctrlCaps==true)
107107                {
108108                
109109                    if(cbSign.SelectedIndex==0)
110110                    {
111111                        cbSign.SelectedIndex=1;
112112                        this.Text="否";
113113                    
114114                    }
115115                    else
116116                    {
117117                        cbSign.SelectedIndex=0;
118118                        this.Text="是";
119119                    }
120120                    ctrlCaps=false;
121121                }
122122                else
123123                {
124124                    
125125                
126126                    ctrlCaps=true;
127127                }
128128
129129            }
130130            
131131            if ( (int) m.vkCode == 192)
132132            {
133133                if(ctrlKey==true)
134134                {
135135//                    axMSComm1.Output="IN";
136136//                    axMSComm1.Output="RES2";
137137//                    axMSComm1.Output="PRI\r\n";
138138//                    
139139                    axMSComm1.Output="GA00\r\n";
140140                    ctrlKey=false;
141141                    ctrlreset=false;
142142                    
143143                }
144144                else
145145                {
146146                    ctrlKey=true;
147147                }
148148                return 1;
149149            }
150150            return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam); 
151151        }
152152
153153        /**//**//**//**//**//**//**//// <summary>
154154        /**//// 安??子
155155        /**//// </summary>
156156        public void HookStart()
157157        {
158158            if(hKeyboardHook == 0)
159159            {
160160                KeyboardHookProcedure = new HookProc(KeyboardHookProc);
161161                hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD, KeyboardHookProcedure, IntPtr.Zero,GetCurrentThreadId());
162162                hKeyboardHook = SetWindowsHookEx( WH_KEYBOARD,KeyboardHookProcedure,Marshal.GetHINSTANCE(Assembly.GetExecutingAssembly().GetModules()[0]),0);
163163                // 如果?置?子失?
164164                if(hKeyboardHook == 0 )    
165165                {
166166                    HookStop();
167167                    throw new Exception("SetWindowsHookEx failed.");
168168                }
169169            }
170170        }
171171
172172        /**//**//**//**//**//**//**//// <summary>
173173        /**//// 卸??子
174174        /**//// </summary>
175175        public void HookStop()
176176        {
177177            bool retKeyboard = true;
178178            if(hKeyboardHook != 0)
179179            {
180180                retKeyboard = UnhookWindowsHookEx(hKeyboardHook);
181181                hKeyboardHook = 0;
182182            } 
183183            if (!(retKeyboard)) 
184184            {
185185                throw new Exception("UnhookWindowsHookEx  failed.");
186186            }
187187        }
188188
189189        /**//**//**//// <summary>
190190        /**//// 清除任何使用中的資源。
191191        /**//// </summary>
192192        protected override void Dispose( bool disposing )
193193        {
194194            if( disposing )
195195            {
196196                if (components != null) 
197197                {
198198                    components.Dispose();
199199                }
200200            }
201201            base.Dispose( disposing );
202202        }
203203
204204        Windows Form 設計工具產生的程式碼Windows Form 設計工具產生的程式碼#region Windows Form 設計工具產生的程式碼
205205        /**//**//**//// <summary>
206206        /**//// 此為設計工具支援所必須的方法 - 請勿使用程式碼編輯器修改
207207        /**//// 這個方法的內容。
208208        /**//// </summary>
209209        private void InitializeComponent()
210210        {
211211            this.components = new System.ComponentModel.Container();
212212            System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
213213            this.textBox1 = new System.Windows.Forms.TextBox();
214214            this.button1 = new System.Windows.Forms.Button();
215215            this.splitter1 = new System.Windows.Forms.Splitter();
216216            this.cbRthread = new System.Windows.Forms.ComboBox();
217217            this.label1 = new System.Windows.Forms.Label();
218218            this.label2 = new System.Windows.Forms.Label();
219219            this.comboBox1 = new System.Windows.Forms.ComboBox();
220220            this.label3 = new System.Windows.Forms.Label();
221221            this.label4 = new System.Windows.Forms.Label();
222222            this.comboBox2 = new System.Windows.Forms.ComboBox();
223223            this.label5 = new System.Windows.Forms.Label();
224224            this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
225225            this.label6 = new System.Windows.Forms.Label();
226226            this.cbSign = new System.Windows.Forms.ComboBox();
227227            this.axMSComm1 = new AxMSCommLib.AxMSComm();
228228            ((System.ComponentModel.ISupportInitialize)(this.axMSComm1)).BeginInit();
229229            this.SuspendLayout();
230230            // 
231231            // textBox1
232232            // 
233233            this.textBox1.Location = new System.Drawing.Point(64, 16);
234234            this.textBox1.Multiline = true;
235235            this.textBox1.Name = "textBox1";
236236            this.textBox1.Size = new System.Drawing.Size(224, 56);
237237            this.textBox1.TabIndex = 2;
238238            this.textBox1.Text = "";
239239            // 
240240            // button1
241241            // 
242242            this.button1.Location = new System.Drawing.Point(232, 160);
243243            this.button1.Name = "button1";
244244            this.button1.TabIndex = 1;
245245            this.button1.Text = "接收";
246246            this.button1.Click += new System.EventHandler(this.button1_Click);
247247            // 
248248            // splitter1
249249            // 
250250            this.splitter1.Location = new System.Drawing.Point(0, 0);
251251            this.splitter1.Name = "splitter1";
252252            this.splitter1.Size = new System.Drawing.Size(3, 189);
253253            this.splitter1.TabIndex = 5;
254254            this.splitter1.TabStop = false;
255255            // 
256256            // cbRthread
257257            // 
258258            this.cbRthread.Items.AddRange(new object[] {
259259                                                           "1",
260260                                                           "2",
261261                                                           "3",
262262                                                           "4",
263263                                                           "5",
264264                                                           "6",
265265                                                           "7",
266266                                                           "8",
267267                                                           "9",
268268                                                           "10",
269269                                                           "11",
270270                                                           "12",
271271                                                           "13",
272272                                                           "14",
273273                                                           "15"});
274274            this.cbRthread.Location = new System.Drawing.Point(72, 88);
275275            this.cbRthread.Name = "cbRthread";
276276            this.cbRthread.Size = new System.Drawing.Size(48, 21);
277277            this.cbRthread.TabIndex = 6;
278278            this.cbRthread.Text = "15";
279279            this.cbRthread.SelectedIndexChanged += new System.EventHandler(this.cbRthread_SelectedIndexChanged);
280280            // 
281281            // label1
282282            // 
283283            this.label1.Location = new System.Drawing.Point(16, 88);
284284            this.label1.Name = "label1";
285285            this.label1.Size = new System.Drawing.Size(56, 23);
286286            this.label1.TabIndex = 7;
287287            this.label1.Text = "每次接收";
288288            // 
289289            // label2
290290            // 
291291            this.label2.Location = new System.Drawing.Point(16, 120);
292292            this.label2.Name = "label2";
293293            this.label2.Size = new System.Drawing.Size(160, 23);
294294            this.label2.TabIndex = 8;
295295            this.label2.Text = "關閉程序後是否清空剪切板";
296296            // 
297297            // comboBox1
298298            // 
299299            this.comboBox1.Items.AddRange(new object[] {
300300                                                           "是",
301301                                                           "否"});
302302            this.comboBox1.Location = new System.Drawing.Point(176, 120);
303303            this.comboBox1.Name = "comboBox1";
304304            this.comboBox1.Size = new System.Drawing.Size(48, 21);
305305            this.comboBox1.TabIndex = 9;
306306            this.comboBox1.Text = "否";
307307            this.comboBox1.SelectedIndexChanged += new System.EventHandler(this.comboBox1_SelectedIndexChanged);
308308            // 
309309            // label3
310310            // 
311311            this.label3.Location = new System.Drawing.Point(128, 88);
312312            this.label3.Name = "label3";
313313            this.label3.Size = new System.Drawing.Size(160, 23);
314314            this.label3.TabIndex = 10;
315315            this.label3.Text = "字符就放入剪切板";
316316            // 
317317            // label4
318318            // 
319319            this.label4.Location = new System.Drawing.Point(16, 144);
320320            this.label4.Name = "label4";
321321            this.label4.Size = new System.Drawing.Size(80, 23);
322322            this.label4.TabIndex = 11;
323323            this.label4.Text = "接收數字放大";
324324            // 
325325            // comboBox2
326326            // 
327327            this.comboBox2.Items.AddRange(new object[] {
328328                                                           "1",
329329                                                           "10",
330330                                                           "100",
331331                                                           "1000",
332332                                                           "10000"});
333333            this.comboBox2.Location = new System.Drawing.Point(96, 144);
334334            this.comboBox2.Name = "comboBox2";
335335            this.comboBox2.Size = new System.Drawing.Size(48, 21);
336336            this.comboBox2.TabIndex = 12;
337337            this.comboBox2.Text = "100";
338338            // 
339339            // label5
340340            // 
341341            this.label5.Location = new System.Drawing.Point(144, 144);
342342            this.label5.Name = "label5";
343343            this.label5.Size = new System.Drawing.Size(16, 23);
344344            this.label5.TabIndex = 13;
345345            this.label5.Text = "倍";
346346            // 
347347            // notifyIcon1
348348            // 
349349            this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject("notifyIcon1.Icon")));
350350            this.notifyIcon1.Text = "COM1口連接程式(EF-11PRH)";
351351            this.notifyIcon1.Visible = true;
352352            // 
353353            // label6
354354            // 
355355            this.label6.Location = new System.Drawing.Point(16, 168);
356356            this.label6.Name = "label6";
357357            this.label6.Size = new System.Drawing.Size(80, 23);
358358            this.label6.TabIndex = 16;
359359            this.label6.Text = "是否取絕對值";
360360            // 
361361            // cbSign
362362            // 
363363            this.cbSign.Items.AddRange(new object[] {
364364                                                        "是",
365365                                                        "否"});
366366            this.cbSign.Location = new System.Drawing.Point(96, 168);
367367            this.cbSign.Name = "cbSign";
368368            this.cbSign.Size = new System.Drawing.Size(48, 21);
369369            this.cbSign.TabIndex = 17;
370370            this.cbSign.Text = "是";
371371            // 
372372            // axMSComm1
373373            // 
374374            this.axMSComm1.Enabled = true;
375375            this.axMSComm1.Location = new System.Drawing.Point(16, 24);
376376            this.axMSComm1.Name = "axMSComm1";
377377            this.axMSComm1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axMSComm1.OcxState")));
378378            this.axMSComm1.Size = new System.Drawing.Size(38, 38);
379379            this.axMSComm1.TabIndex = 18;
380380            this.axMSComm1.OnComm += new System.EventHandler(this.axMSComm1_OnComm);
381381            // 
382382            // Form1
383383            // 
384384            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
385385            this.ClientSize = new System.Drawing.Size(320, 189);
386386            this.Controls.Add(this.axMSComm1);
387387            this.Controls.Add(this.cbSign);
388388            this.Controls.Add(this.label6);
389389            this.Controls.Add(this.label5);
390390            this.Controls.Add(this.comboBox2);
391391            this.Controls.Add(this.label4);
392392            this.Controls.Add(this.label3);
393393            this.Controls.Add(this.comboBox1);
394394            this.Controls.Add(this.label2);
395395            this.Controls.Add(this.label1);
396396            this.Controls.Add(this.cbRthread);
397397            this.Controls.Add(this.splitter1);
398398            this.Controls.Add(this.button1);
399399            this.Controls.Add(this.textBox1);
400400            this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
401401            this.MaximizeBox = false;
402402            this.Name = "Form1";
403403            this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
404404            this.Text = "是";
405405            this.WindowState = System.Windows.Forms.FormWindowState.Minimized;
406406            this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.Form1_KeyDown);
407407            this.Load += new System.EventHandler(this.Form1_Load);
408408            ((System.ComponentModel.ISupportInitialize)(this.axMSComm1)).EndInit();
409409            this.ResumeLayout(false);
410410
411411        }
412412        #endregion
413413
414414        /**//**//**//// <summary>
415415        /**//// 應用程式的主進入點。
416416        /**//// </summary>
417417        [STAThread]
418418        static void Main() 
419419        {
420420            Application.Run(new Form1());
421421        }
422422//        void keypressed(Object o, KeyPressEventArgs e)
423423//        {
424424//            // The keypressed method uses the KeyChar property to check 
425425//            // whether the ENTER key is pressed. 
426426//
427427//            // If the ENTER key is pressed, the Handled property is set to true, 
428428//            // to indicate the event is handled.
429429//            if(e.KeyChar == (char)13)
430430//                e.Handled=true;
431431//        }
432432
433433        private void Form1_Load(object sender, System.EventArgs e)
434434        {
435435                axMSComm1.PortOpen=true;
436436//            axMSComm1.Output="RST";
437437//            axMSComm1.Output="EXT3";
438438//            axMSComm1.Output="IN";
439439//            axMSComm1.Output="TOL1";
440440//            axMSComm1.Output="RES2\r\n";
441441        }
442442
443443        private void axMSComm1_OnComm(object sender, System.EventArgs e)
444444        {
445445//            MessageBox.Show("111");
446446                
447447            byte[] bytIn; 
448448            object objIn; 
449449            float fltC;
450450            //            int i; 
451451          
452452            axMSComm1.InputMode=MSCommLib.InputModeConstants.comInputModeBinary; 
453453            axMSComm1.InputLen =short.Parse(cbRthread.Text); 
454454            objIn=axMSComm1.Input;  
455455            bytIn =(byte [])objIn;  
456456
457457            
458458            strIn = System.Text.ASCIIEncoding.ASCII.GetString(bytIn);
459459            if(strIn.IndexOf(',')>0) strIn=strIn.Substring(strIn.IndexOf(',')+1);
460460                textBox1.Text=strIn;
461461            if(cbSign.SelectedIndex==0)
462462                fltC=Math.Abs((float)Math.Round(float.Parse(strIn)*float.Parse(comboBox2.Text),2));
463463            else
464464            fltC=(float)Math.Round(float.Parse(strIn)*float.Parse(comboBox2.Text),2);
465465                    
466466            System.Windows.Forms.Clipboard.SetDataObject(fltC.ToString(),clboard);
467467            if(ctrlreset==false)
468468            {
469469                SendKeys.Send("^v");
470470                SendKeys.Send("{TAB}");
471471
472472                axMSComm1.OutBufferCount=0;
473473                ctrlreset=true;    
474474            
475475
476476                //                System.Threading.Thread.Sleep(500);
477477            }
478478            
479479        
480480        }
481481
482482        private void button1_Click(object sender, System.EventArgs e)
483483        {
484484            axMSComm1.Output="GA00\r\n";
485485        }
486486
487487        private void cbRthread_SelectedIndexChanged(object sender, System.EventArgs e)
488488        {
489489            axMSComm1.RThreshold=short.Parse(cbRthread.Text);
490490        }
491491
492492        private void comboBox1_SelectedIndexChanged(object sender, System.EventArgs e)
493493        {
494494        if(comboBox1.Text.Trim()=="是") clboard=true;
495495            else
496496            clboard=false;
497497        }
498498
499499        private void Form1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
500500        {
501501//            MessageBox.Show("11");
502502        }
503503
504504        
505505
506506    
507507        
508508        
509509
510510        
511511
512512    }
513513}
514514
515