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
Related
i have problem i'm trying to do new shortcut but if i put the shortcut i made F11 then will happen is full screen , i want to disable Keyboard inputs form windows or just disable the actions form windows i mean (if i press any key i want to put the action not windows put the action)
i create application that raises the volume , i put the volume up "F11" but in google chrome F11 is full screen, there anther application if i press F11 or F10 or F9 it do something and i dont want this happen.
i'm using Visual Studio Windows forms C#
note: my application work in background (i dont want use From1_KeyUp or Down i know this code)
Thank You for help
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To prevent keys from reaching the target application you must use a low-level keyboard hook and return a non-zero value when you performed your own custom action.
I would like to know if it is possible to SendMessage and PostMessage to/in other application even if it is not activated, or somehow to interact with that application without disturbing the user....
So far all I want to do is detect Pixels at specific coordinates than to Click on specific coordinates.
Note: Please do not misunderstood, the reason I want to detect Pixels and than Click, is because the button does not has Class ID.
It is possible to use SendMessage and PostMessage to send mouse clicks at specific coordinates to a window. The messages to send would be like WM_LBUTTONDOWN, WM_LBUTTONUP, and WM_LBUTTONDBLCLK. These messages can be sent with the window minimized or hidden.
If you have Visual Studio, there is an included application called Spy++ (and Spy++ 64 Bit). If you use those programs and have them monitor the window messages to your target application, you can see the exact window messages that are sent when you manually click on the button.
It is difficult if not impossible to detect pixels when the window is not visible either due to being minimized, hidden, or just covered by another window. If the application will be running in Vista or later, you might try creating a DWM Live Thumbnail of the application inside your app and scanning the pixels from there to determine the button's location.
Hopefully this information will get you started or at least let you know how complicated this may be so you can make an informed decision to continue or not.
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.
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.
Keyboard simulator ، Like Like On-Screen Keyboard
how to make Like "On-Screen Keyboard " ?
In old win 32 API there was a sendKeys() method like API. when user clicks your form, then your form is active and has focus while he has activated the desired control for writing just before giving focus to yours. One solution is monitoring focus changes on controls and when user presses keyboard on your form, you can sendKeys() to appropriate window handle. I don't know what's the real name of that method and it's equivalent ic .NET but it should not be hard to find out. Stick to design.
[edited]
here it is :
http://msdn.microsoft.com/en-us/library/system.windows.forms.sendkeys.aspx