在我的程序中,我想模拟按下MediaPlayPause键.就像一张纸条,我不想检查按键是否按下或按下,我想通过我的程序按键.
我尝试过SendKeys.Send,但特殊键仅限于{Enter}和{Tab}等.
好的,我从这个答案中移植了c#代码：
https://stackoverflow.com/a/7182076/2000557
我不知道VB.Net,但使用本指南复制并不太难：http://msdn.microsoft.com/en-us/library/172wfck9.aspx
无论如何,我通过点击事件在表单上放了一个按钮.
Imports System.Runtime.InteropServices
Public Class Form1
'this constant represents the hex value for the key to send to user32.dll
Const APPCOMMAND_MEDIA_PLAY_PAUSE = &HE0000
'this constant represents which command. Sort of like the function in user32.dll we are calling.
Const WM_APPCOMMAND = &H319
'this declares the user32.dll call to SendMessageW we are making
Declare Auto Function SendMessageW Lib "user32.dll" Alias "SendMessageW" (
ByVal hWnd As Integer,ByVal Msg As Integer,ByVal wParam As Integer,ByVal lParam As Integer) As Integer
Private Sub Button1_Click(sender As Object,e As EventArgs) Handles Button1.Click
'call the SendMessage function with the current window handle,the command we want to use,same handle,and the button we want to press
SendMessageW(Handle,WM_APPCOMMAND,Handle,APPCOMMAND_MEDIA_PLAY_PAUSE)
End Sub
End Class
我通过打开WMplayer测试了它,按钮播放/暂停了我的音乐.如果您需要任何其他帮助,请告诉我.如果要实现其他密钥,请参考以下内容：http://msdn.microsoft.com/en-us/library/windows/desktop/ms646275(v=vs.85).aspx