We Keep Coding

C# Disable mouse takeover

I am currently using the windows on screen keyboard to control the program for the cnc machine. In C# I tried to make a simple on screen keyboard with only the keys I need. I use this command to send key
SendKeys.SendWait("{ENTER}");
or
SendKeys.Send("{ENTER}");
The first click works, but then the background program "takes away" the mouse after the click and then I can no longer control it. While such a problem does not occur on the windows on screen keyboard
Is there a way to avoid this, to make it work like microsoft osk?
Thanks

C# - Force using XP style alt-tab switcher

I would like to ask if anyone would know a way how to force the old XP version of Alt-Tab dialog when inside my C# app.
There is definitely a way how to capture keyboard keys, for example here Global keyboard capture in C# application.
There could be a way to capture alt-tab with KeyPress or KeyDown and then send alt-alt-tab which would show the old version, but that is not a preferable way.
So how to force windows from C# to show the old alt-tab dialogue from the app? Is it even possible?
Thanks in advance.

Perform left mouse click from Background

I have desktop app that is in background. I later want to try this a a service too.
How can I perform mouse click when certain time and date is reached.
I don't want to move user mouse or something. Just send left mouse click from background.

Controling an application via simulated Mouse or Keyboard input goes into the Area of Desktop Automation. There are many existing solutions for it. I advise agaisnt making your own custom hack.
That asumes you do not have control over the target application of course. If that was the case, using a Timer is the obvious way.
As for doing this from a Service: That is nigh impossible. Ever since Windows Vista, Service do not get interactive Sessions by default.This is a rather important part of the UAC security. While getting around it is possible it will propably raise some red flags.

Control OS Mouse Event using Windows Form - C#

The program I am trying to do is to simulate the mouse event of a operating system using keyboard with Windows Form. Right now I am able to change the cursor and do different actions like mouse clicking inside the Form (when the Form is on the Top).
The problem is I would like to extend it to the whole Operating System, which means even if my Windows Form is not at the top, I am still able to control my cursor and do all sorts of mouse event on other applications while the Form is running. How should I do to implement this ?

You might want to look at this library Global System Hooks in .NET which uses global system hooks to detect all mouse and keyboard events include those outside of your application.

You can synthesize OS-wide keystrokes, mouse motions, and button clicks using the Win32 SendInput() API. You can call it from C# using P/Invoke. Sample code can be found here: SendInput on PInvoke.net.
I remember back in the day I used the SendInput (and a screenshot API) to create a Minesweeper bot in C# (2.0 I think). It could solve an Expert puzzle in about one second. I wish I still had the source code to sample here, but I don't.
EDIT: It appears someone has already created a nice .NET warpper for the SendInput(): Windows Input Simulator on CodePlex.

how to use console/windows app without focus on it?

im going to create a KEylog application that enables me to write all data typed(keys pressed) on a text file/database how can i do this without focus on the windows app/console app?
for a reason , for all you to know, this is for my PC and im not trying to hack an account.
just for me to know what they are doing on my computer.

Find an example written in .NET here:
Processing Global Mouse and Keyboard Hooks in C#
This class allows you to tap keyboard and mouse and/or to detect their
activity even when an application runs in the background or does not
have any user interface at all.