问题
I'm kind of desperate. I have been trying for hours now, but I just can't get SendInput()
to work. To be honest, I can't even get it to be recognized. It always says:
Error 1 The type or namespace name 'INPUT' could not be found (are you missing a using directive or an assembly reference?)
And I just can't find out which libraries to use. There's almost zero information about what to include for this, all I can find is for C++ or is simply not existing when I try using
it. Please Help!
I'm trying to make my program do a mouseclick... Here's the code, it's one of many versions I found and tried to get to work.
In this version, the program also can't find INPUT
and SendInputEventType
using System;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
namespace autoPlayer
{
class Win32
{
enum SystemMetric
{
SM_CXSCREEN = 0,
SM_CYSCREEN = 1,
}
[DllImport("user32.dll")]
static extern int GetSystemMetrics(SystemMetric smIndex);
int CalculateAbsoluteCoordinateX(int x)
{
return (x * 65536) / GetSystemMetrics(SystemMetric.SM_CXSCREEN);
}
int CalculateAbsoluteCoordinateY(int y)
{
return (y * 65536) / GetSystemMetrics(SystemMetric.SM_CYSCREEN);
}
public static void ClickLeftMouseButton(int x, int y)
{
INPUT mouseInput = new INPUT();
mouseInput.type = SendInputEventType.InputMouse;
mouseInput.mkhi.mi.dx = CalculateAbsoluteCoordinateX(x);
mouseInput.mkhi.mi.dy = CalculateAbsoluteCoordinateY(y);
mouseInput.mkhi.mi.mouseData = 0;
mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_MOVE | MouseEventFlags.MOUSEEVENTF_ABSOLUTE;
SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));
mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTDOWN;
SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));
mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTUP;
SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));
}
}
}
I would be so glad If anyone could help!
回答1:
You are missing the INPUT
structure. It doesn't come from System.Windows.Input
if that's what you thought (guessing due to using
).
You can find the necessary C# and VB.NET structures here
Your SendInputEventType
is really just going to be an enum or a class with constants. PInvoke has that defined as well.
internal enum INPUT_TYPE : uint
{
INPUT_MOUSE = 0,
INPUT_KEYBOARD = 1,
INPUT_HARDWARE = 2
}
You can update your code to use this name or rename this enum to match your code. It's up to you.
Here is a great answer that has an example of implementing SendInput
with those structures defined: how to programatically mouse move,click,right click and keypress, etc. in winform and wpf?
回答2:
Don't you need something like this:
[DllImport("user32.dll")]
internal static extern uint SendInput (uint nInputs,
[MarshalAs(UnmanagedType.LPArray), In] INPUT[] pInputs,
int cbSize);
来源:https://stackoverflow.com/questions/28309687/cant-get-sendinput-to-work