Show mouse cursor using .net if mouse cursor is invisible

Question

Show mouse cursor using .net if mouse cursor is invisible

Arvind Sonar 0

Hi,

I have touch screen windows pc and no physical keyboard and mouse is not connected.

I have developed virtual mouse to operate from remote PC.

When user starts operating from touch screen, mouse gets disappeared.

I don't want to connect physical mouse.

I am able to get the status of mouse using following code.

        [DllImport("user32.dll")]
        static extern bool GetCursorInfo(ref CursorInfoStruct pci);

        public static bool IsVisible()
        {
            CursorInfoStruct pci = new CursorInfoStruct();
            pci.cbSize = Marshal.SizeOf(typeof(CursorInfoStruct));
            GetCursorInfo(ref pci);
            // const Int32 hidden = 0x00;
            const Int32 showing = 0x01;
            // const Int32 suppressed = 0x02;
            bool isVisible = ((pci.flags & showing) != 0);
            return isVisible;
        }

How can I make cursor visible through applicaiton?

David Lowndes 2,640 Reputation points MVP

2023-06-02T08:22:24.5533333+00:00

See if the ShowCursor API works for you.

Arvind Sonar 0

Hi David,

       Thank you for the quick response.  
        I have tried ShowCursor API. Getting executed successfully, but not showing cursor.  
       Also I have tried  changing cursor, change the cursor position through API, not working.

David Lowndes 2,640 Reputation points MVP

2023-06-02T08:45:10.57+00:00

ShowCursor only works for windows created on the thread you call it from, I'd guess other similar APIs will have the same behaviour. If that's not your situation, then I wouldn't expect it to work.
Arvind Sonar 0 Reputation points

2023-06-02T10:02:36.3966667+00:00

I want to make it system level, not application window level.