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何秀奇
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| using Com_CSSkin; | ||
| using Commun.NetWork.MQTT; | ||
| using CommunTools.Common; | ||
| using CommunTools.Common.Twain; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel; | ||
| using System.Data; | ||
| using System.Drawing; | ||
| using System.Linq; | ||
| using System.Runtime.InteropServices; | ||
| using System.Text; | ||
| using System.Windows.Forms; | ||
|
|
||
| namespace CommunTools | ||
| { | ||
| /// <summary> | ||
| /// LPT并口通讯 | ||
| /// </summary> | ||
| public partial class Frm_ComLPT : CSSkinMain | ||
| { | ||
| public Frm_ComLPT() | ||
| { | ||
| InitializeComponent(); | ||
| } | ||
|
|
||
| public class PortControl // Import dll to project | ||
| { | ||
| [DllImport("inpout32.dll", EntryPoint = "Out32")] | ||
| public static extern void Output(int portAddress, int value); // decimal | ||
|
|
||
| [DllImport("inpout32.dll", EntryPoint = "Inp32")] | ||
| public static extern int Input(int portAddress); | ||
| } | ||
|
|
||
| static int portAddress = 0x378; // Typically, 0x378 is the address for LPT1 | ||
| static int portDecData = 0xFF; | ||
|
|
||
| private void btnInp_BtnClick(object sender, EventArgs e) | ||
| { | ||
| // Read a value from the parallel port | ||
| Console.WriteLine("Reading value from the parallel port..."); | ||
| int value = PortControl.Input(portAddress); | ||
| Console.WriteLine($"Value read from port: {value:X}"); | ||
| } | ||
|
|
||
| private void btnOut_BtnClick(object sender, EventArgs e) | ||
| { | ||
| // Write a value to the parallel port | ||
| Console.WriteLine("Writing value to the parallel port..."); | ||
| PortControl.Output(portAddress, portDecData); // Sending 0xFF (all bits high) | ||
| } | ||
| } | ||
| } |
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