When the user enter the Button control element,how many time will the program calls the increment function?
For this question,i don't know how to calculate the numbers that program calls the
increment time,the answer is 2,but i don't know the reason,can anyone explain to me?
Your event case is called when mouse button is clicked on your pane and on your button.
Here, You need to notice that your button is on your pane. It means when mouse down event is happened on your button, in the same time, the event is happened on your pane.
So, when you press down your mouse, Labview will recognize mouse down events are happened twice. one time on your pane and one time on your button.
Related
I have developed an application using VB.NET that uses a touchscreen (it's a Point of Sales app). I have used button click events to execute the code like a normal Windows application. Is this correct way to do it, or should I use MouseUp and MouseDown events?
Using Click events is correct. On a touch screen, tapping a button will generate a Click event, just like it would if you clicked the button with a mouse.
P.S. You mention in the comments that sometimes the application hangs when you click a button. This is most likely caused by the code that responds to the Click event, and is not related to using a touch screen.
Just ran into an issue on our Touch POS app yesterday. The click event is fired twice in some cases on some monitors. It seems that different touchscreen monitors handle the click even differently and some have software to prevent it others do not. The specific issue was that our click event was being fired two times so clicking button "1" would result in "11" Only happened when using the touchscreen not the mouse. The first depress of the button would put "1" and then when you took your finger off the button another "1" would appear. If you debugged the click event it would only be fired 1 time and just put 1 in the field. If you took debug out it went back to 11.
Save yourself the headaches and use MOUSEUP.
what i am trying to do is that, when mouse enters on anchor tag, it displays a div on targated anchor tag and when it leaves i simply hide the div but the problem is that, the mouse enter and mouse leave fires multiple times as i mouse the pointer. i noticed that as i move the pointer ,it leaves the mouse and as i move it again it enters.
the below is the jsbin where the example is. please help. thanks.
http://jsbin.com/jucaqereca/1/edit
I am trying to find a way where I can click out side of the program's window and have the program pick up any time I press the mouse (Ex: Have Chrome or a game open and every time the mouse button is pressed processing is told the mouse is being pressed). I do not need any information to be sent to the program besides the fact that the mouse button has been pressed.
Thank you
I have fully programmed my Minesweeper; however, I was having difficulty trying to get the same result as in the original minesweeper for when a user clicks and moves the mouse around while still right clicking. You may notice that in the original Minesweeper, when a user does as explained, the tiles that the user goes to will then look blank. If the user releases the mouse, the current tile they hovered to will become the clicked tile. In my Minesweeper, the tile I click on is the only one that will look blank, and when I hover over to the next tiles, they do not get blank like the first one I clicked on. Then when I release my mouse button when over to another tile, the very first tile I clicked on is the one that gets uncovered. Here is what I already have used. I have the MouseDown event which checks to see if the game has been started to begin the game timer. It also has some color properties for tiles when I click on them and I set a boolean to true or false depending on the user left or right click. I have the MouseUp event which looks at the boolean to determin what the user had clicked on the mouse so I know if I flag or simply click to uncover. Then I have the MouseEnter and MouseLeave which are needed to yield the proper glow I want for the tiles. What should I do to get the same results as in the original Minesweeper with the MouseDown and MouseEnter into other tiles? I tried many other things such as MouseEnter, MouseMove and MouseHover, but all seem to yield the same crummy result as what I already have.
Just another piece of information, the MouseEvents are built in to a UserControl which I then use as my tile in Minesweeper. It almost as if when an event is active, another one cannot be done at the same time.
You might want to consider, DragOver and Drag related events
I've got an app in development where you press a button to play a sound using System beep.
Instead of recording the output, I was thinking of recording the timing of when the buttons were pressed, so when the user presses a 'Play' button, the buttons are pressed in the same timing the user has pressed them, so it acts like the iPhone has recorded the sounds, but it's just playing them in sequence. I'd like this to occur once the user has pressed a Record button.
Example:
User presses record
Timing starts
records timing of each button pressed and when
Timing stops after a button has been pressed
PLay button plays back the sequence of events
Can anybody give any ideas on coding, documents to read etc.
Thanks a lot!
http://pastie.org/376474
This should hopefully help you out a bit.
It works in essence, though I haven't actually tested it, so I'm not positive it works.
I assume you can read through it and find a way to fit it in your own code.
Good luck!
Many system time methods have a way to get the value in seconds since the epoch.
Depending on the granularity of the system clock you can just grab the system time of the start button press and grab the time again when each button is pressed.
To calculate the timing just subtract the start time from the button press time.