c#实现模拟键盘定位将扫描抢扫到的条码发送到另一个软件的扫码框
时间: 2023-09-19 14:10:00 浏览: 126
可以使用C#中的SendKeys类来模拟键盘输入,将扫描到的条码发送到另一个软件的扫码框。
首先需要找到另一个软件的扫码框的句柄,可以使用Windows API函数FindWindow和FindWindowEx来实现。
然后使用SendKeys类的Send方法来模拟键盘输入,将扫描到的条码发送到另一个软件的扫码框。
以下是一个示例代码:
```csharp
using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
public class BarcodeScanner
{
// Windows API functions
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll", SetLastError = true)]
private static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
// SendKeys constants
private const int VK_RETURN = 0x0D;
private const int KEYEVENTF_KEYUP = 0x0002;
private IntPtr _targetWindowHandle;
public BarcodeScanner(string targetWindowName)
{
// Find the target window handle
IntPtr mainWindowHandle = FindWindow(null, targetWindowName);
if (mainWindowHandle == IntPtr.Zero)
{
throw new Exception("Target window not found.");
}
// Find the child edit control handle
IntPtr editControlHandle = FindWindowEx(mainWindowHandle, IntPtr.Zero, "Edit", null);
if (editControlHandle == IntPtr.Zero)
{
throw new Exception("Edit control not found.");
}
_targetWindowHandle = editControlHandle;
}
public void Scan(string barcode)
{
// Set focus to the target window
SetForegroundWindow(_targetWindowHandle);
// Send the barcode
SendKeys.Send(barcode);
SendKeys.Send("{ENTER}");
}
[DllImport("user32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);
}
```
使用示例:
```csharp
BarcodeScanner scanner = new BarcodeScanner("Target Window Title");
scanner.Scan("Barcode");
```
其中,"Target Window Title"是另一个软件的窗口标题,"Barcode"是扫描到的条码。