发送消息到插入点 [英] Send a Message to insertion point

问题描述

我可以发送短信而不指定HWND吗?只需发送到插入点，我的意思是键入时该行会出现.

下面的代码不起作用.
sendmessage可以做我想要的吗?

Can i send a text message do not specify the HWND. Just send to the insertion point which i mean the line appear when you typing.

The code below do not work.
Can sendmessage do what i want?

Public Class Form1
    Declare Auto Function SendMessage Lib "User32.dll" _
    (ByVal hWnd As IntPtr, ByVal Msg As Integer, _
     ByVal wParam As Integer, ByVal lParam As String) As Integer
    Private Const WM_SETTEXT As Integer = &HC

    Declare Function GetAsyncKeyState Lib "user32" Alias "GetAsyncKeyState" _
(ByVal vKey As Integer) As Integer
    Dim F8 As Integer = 119

    Private Sub tmr_Tick(ByVal sender As System.Object, _
                         ByVal e As System.EventArgs) Handles tmr.Tick
        If (GetAsyncKeyState(119) < 0) Then
            SendMessage(0, WM_SETTEXT, 0, "12123")
        End If

    End Sub
End Class

推荐答案

您需要的是模拟输入事件，尤其是键事件.在这种情况下，
SendKeys方法非常有限.它将密钥发送到活动的应用程序，但是您无法激活它；还有其他限制.

模拟输入的真正通用方法是P/Invoke Windows API SendInput，请参见

What you need is to simulate input events, in particular key events. In this case,
The SendKeys method is very limited; it will send keys to an active application, but you cannot activate it; there are other limitation.

The really universal way of simulation of input is to P/Invoke Windows API SendInput, see http://msdn.microsoft.com/en-us/library/ms646310(v=vs.85).aspx[^].

In this case you don''t need HWND; the simulation is low-level; you can fully imitate the real keyboard.

I would warn against using it for UI development or application integration; it would be a real abuse of technology.

—SA

或者您也可以使用 ^ ] ...

Or you could just use SendKeys[^]...

您只能将消息发送到窗口句柄.如果您不知道窗口句柄，则必须先找到它.

我不知道你在做什么，所以几乎不可能告诉你正确的行动是什么.

You can only send messages to window handles. If you don''t know the window handle, you must find it first.

I have no idea what you''re doing so it''s pretty much impossible to tell you what the correct corse of action is.

这篇关于发送消息到插入点的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！