Question

wpf中怎么编辑用键盘来下达指令

Answer 1

现在网上的库大部分都是VB的那个发送键盘指令的库，那个在WPF里面是用不了的，WPF的话可以用System.Windows.Forms中的其实跟VB中的Microsoft.VisualBasic.Devices这个里面的SendKeys用法差不多一样，吐槽一下，新的这个也可以在VB中使用好像，我看MSDN中Forms中的SendKeys也能在 VB中用，真是这一个小问题浪费了我一下午的时间。贴上代码

[DllImport("User32.dll", EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpClass, string lpszWindow);

[DllImport("user32.dll ", EntryPoint = "SendMessage")]
public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);

[DllImport("user32.dll", EntryPoint = "SendMessage")]
public static extern IntPtr SendMessage(IntPtr hwnd, int wMsg, IntPtr wParam, IntPtr lParam);

const int WM_CHAR = 0x0102;
const int WM_SETTEXT = 0x000C;
const int VK_RETURN = 0x0d;

private void xin(object sender, RoutedEventArgs e)
{
Thread.Sleep(3000);
IntPtr handle = FindWindow(null, "vshost32.exe");
handle = FindWindowEx(handle, IntPtr.Zero, "Edit", null);
if (handle == IntPtr.Zero)
{
Console.WriteLine("没有找到句柄");
// return;
}
SendMessage(handle, WM_SETTEXT, IntPtr.Zero, "d");
// SendKeys.Send("{TAB}");
//SendMessage(handle, WM_CHAR, (IntPtr)VK_RETURN, IntPtr.Zero);//Enter
SendKeys.SendWait("{d}");
// SendMessage(handle, WM_SETTEXT, IntPtr.Zero, "w");
}
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这里现在也还有很多我还不是很了解的地方，等以后有时间再说吧，现在要赶项目。
最后补充一下，它们其实就是很多个WIN32的API