C Mouse Event System Wide
On 4/12/2012 2:50 PM, Steve Richter wrote:experimenting with the SetWindowsHookEx api. The below code is a CCLR Console project. The code calls SetWindowsHookEx( WHMOUSELL. ) to hook system wide mouse events. Then the code doesConsole::ReadLine to wait for keyboard input.From the documentation on LowLevelMouseProc:This hook is called in the context of the thread that installed it.
The call is made by sending a message to the thread that installed the hook. Therefore, the thread that installed the hookmust have a message loop.Emphasis mine.Igor Tandetnik.
C Mouse Event System Wide Screen
Sep 17, 2003 Mousey! Roll Over and Park. The basic technique used is installing a system wide mouse hook. In general, to install a system wide Windows hook, the hook procedure must be written in a separate DLL file and that DLL must be invoked from another executable. All this function does is call the CallNextHookEx API and if any mouse event has. Occurs when the input system reports an underlying drag event with this element as the drag origin. (Inherited from UIElement) PreviewDragOver PreviewDragOver PreviewDragOver PreviewDragOver: Occurs when the input system reports an underlying drag event with this element as the potential drop target. (Inherited from UIElement).
Dev Input Mice Protocol
Well,I'm not skilled enough to create '.dll' and so not in a mood to implement 'Global Mouse Hook'.To know what exactly I'm trying to do you may just look at headings of my previous posts:which were ofcourse answered by you only(-SA)!But,I'll give a small summary.I've a loop that keeps generating X and Y value dynamically using image processing(OpenCV) by detecting the Iris of the user.Next I need to move cursor in sync with the Iris movement and I'm passing the pupil-coordinates as corsorpostion. I've somehow finished that.Next I need to detect blinking to perform mouse clicks(lefteye blink=left click like that) and there are no good methods available for that.So,I'm tweaking the pupildetection procedure.When the user blinks, the pupil-coordinates remain fixed to its previous value, if it remains fixed for few seconds that means user is trying to click.for normal blink rate has to be considered. That is moment when I've to trigger the clicking at current cursor location.I got less that 24hrs to finish that^.so I've to trick it!!I thik this explains my problem. If sound like a challenging problem, and 24 hours like a crazy deadline. I don't know how much work has left though. Maybe I wasn't clear: I mentioned 'hook' only because you did and did not mean you really need to use it.
Just the opposite, I tried to say that the hook cannot simulate input. I just tried to lay out more or less complete information.At the same time, I assumed you really want to simulate input but at the end expressed a doubt you really need. Now I think you don't need it, but probably your algorithm already works with click, so you simply don't have time to abstract our a real computation be separating event from it.Unfortunately, I still did not get the idea, because you did not explain why the user clicks mouse in relation to blinking in first place. However, I got an impression that you simply need to trigger a mouse event which is already handled. So, I added a method you would call do trigger it.Please see if it can work (my updated answer, under EDIT).Good luck,-SA. Sorry for my 'small' summary.Actually, I'm making an iMouse(eye mouse) where user uses my hardware setup(a headmount camera) to interact with computer.The user is a limbic disable(no hands) and can't use the normal mouse.
My application software is to be used like a driver(not actually a driver) which detects headmount camera and allows the user to interact with computer by tracking his/her eyeball movements and blinking.What I should have made clear is that user is 'not clicking'. He/She is just blinking the eye(s) and my app has to detect the blink and perform the clicking at current cursor location.The blink to perform a click is slightly longer than normal blink.So, there are no mouse event from user side(as is the case with all available code samples) and so I can't use 'OnClick' type events handlers:(I can detect blink and all I need is to trigger the click!Moreover I'm a Student and not a professional and so I'm not dragging myself into std GUI practices. I only need to give a demo(in fact, final presentation) that it is possible to click using blink.Thanks for your help -SA!
I think I'm still not clear to You. 'There is no clicking and so I don't think I can use OnMouseClick'.And I think I need this:it's freaking me out!How difficult it could be to perform a simple right click at current cursor location??! Forget everything just write a simple C# program which when run performs a right click!Like have a 'for' loop from 1-10 and for each even value of i(checked after a delay) do a right click.I know I'm very bad at programming.But that's how learning begins. When answering a question please:. Read the question carefully. Understand that English isn't everyone's first language so be lenient of badspelling and grammar. If a question is poorly phrased then either ask for clarification, ignore it, oredit the question and fix the problem.
Insults are not welcome. Don't tell someone to read the manual. Chances are they have and don't get it.Provide an answer or move on to the next question.Let's work to help developers, not make them feel stupid.