Question

I tried
[DllImport(“user32.dll”)]
static extern bool SetCursorPos(int X, int Y);

and it works pretty fine to move the cursor to the desired point. I have never tried such kind of a DLL import before but it works :). However I want more what else can I extract?
Mainly I want to make double click, click or use wheel options without any mouse input, just the code how can I do that? and how can I check what else is included in user32dll?

Thanx

Answer 1

[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
public static extern void mouse_event(uint dwFlags, uint dx, uint dy, uint cButtons, UIntPtr dwExtraInfo);
private const uint MOUSEEVENTF_LEFTDOWN = 0x02;
private const uint MOUSEEVENTF_LEFTUP = 0x04;
private const uint MOUSEEVENTF_RIGHTDOWN = 0x08;
private const uint MOUSEEVENTF_RIGHTUP = 0x10;

You should Import and Define these Constant’s to work with Mouse using Win32API

Use method’s below to do Mouse Operation’s

void sendMouseRightclick(Point p)
{
    mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, p.X, p.Y, 0, 0);
}

void sendMouseDoubleClick(Point p)
{
    mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, p.X, p.Y, 0, 0);

Thread.Sleep(150);

    mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, p.X, p.Y, 0, 0);
}

void sendMouseRightDoubleClick(Point p)
{
    mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, p.X, p.Y, 0, 0);

    Thread.Sleep(150);

    mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP, p.X, p.Y, 0, 0);
}

void sendMouseDown()
{
    mouse_event(MOUSEEVENTF_LEFTDOWN, 50, 50, 0, 0);
}

void sendMouseUp()
{
    mouse_event(MOUSEEVENTF_LEFTUP, 50, 50, 0, 0);
}

If you want to do a Mouse Drag you should First Send MouseDown(Mouse Click) and keep it Clicked While Changing the Mouse Position than Send MouseUp(Release Click) something like this .

sendMouseDown();
Cursor.Position = new Point(30,30);
sendMouseUp();