Im working with my project. I have a device called PIR (Passive Infrared Resistor), capable of detecting any kinds of movement. When the device reached the maximum limit of movementthe red light will turn on. The output of my device is -5v. I want my program to respond when my device detects movement
View 2 Replieshow can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
View 3 RepliesA Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
View 2 RepliesIn a WPF application I have specified a class variable with an associated property that will automatically initialise the variable the first time is it accessed.
However after all the values that will be put into it have been added, and the window opens, the if statement that is supposed to check to see if the variable needs initialising appears to get bypassed, and the variable is re-initialised, thus deleting the information that was in there.
Private Shared _types As Specialized.HybridDictionary
Private Const _typesLocker As String = "blah"
Public Shared ReadOnly Property types() As Specialized.HybridDictionary
[Code].....
I have a small network of PCs and I want build an application in order to manage a database. Every user will have his own instalation on his PC. How can I make those aplication to detect the computers in the network, and to detect and interact with the program installed on the other PCs (update records from the instances installed on other computers, add new records to the database from the other computer etc). Where do I start? Is there any book that specifies that?
View 5 RepliesI want to create a event handler that detects a Directory created/deleted event. is it possible to do using a FileSystemWatcher?
View 2 RepliesI'm trying to make a button that, when pressed, activates a function that detects mouse left click this way: whenever I left-click, it sends key 3 and then 1 (keyboard).
View 8 RepliesI'm trying to make a simple program that detects if a game closes, and when it does, it shuts down the computer.
View 1 RepliesI'm currently having some trouble getting an If statement to work. I want the statement to do its thing when it detects a form is not open. this might sound a bit confusing this is what i mean:
If Form2.open = false Then
blah blah blah
blah blah blah
blah blah blah
[CODE]...
Basically i dont know if im able to have an IF statement occur for when a form is not open and i dont know how to word it.
I want to make a program that detects the note that is being played in front of the microphone. I am testing the FFT function of Naudio, but with the tests that I did in audacity it seems that FFT does not detect the pitch correctly. I played an C5, but the highest pick was at E7.I changed the first dropdown box in the frequency analysis window to "enchanced autocorrelation" and after that the highest pick was at C5.
View 3 RepliesI'm trying to write a program that detects the contents inside a textbox, and if empty displays a warning, and does not input anything into a rich text box. However, if something is detected, it would not display the warning and input the textbox's text into the rtb.
I got everything else, just need help with the textbox detection code.
I have a vb.net windows application that i am using, i have embedded a shockwave flash file in one of the forms, in the development enviornment everything works fine. Then I am using the setup and deployment to create a "msi" it automatically detects that the shockwave flash is a dependency for my project and adds the required dll.Once it has created the msi, and i run it on a new machine, the software gets installed, but the flash component inside the form dosent work. is there something special i need to do for that dll?
View 1 RepliesI have to create a block of code that detects the Local IP address of connected adapter and returns it as string to a TextBox.
View 7 RepliesUsing VB on a graphics screen I want to have the cursor move on a grid as opposed to every pixel. I believe I must hide the cursor and then draw it myself over the background, but I do not understand how to do this.
View 9 Replieshow to get VB to detect mouse movement, clicks and keyboard presses. I am creating a screensaver program that does not intergrate with the windows screensaver.
The reason I am doing this is because I am trying to invent a screensaver that people can use their custome pictures to see with password protection for their PC when the screensaver facility has been disabled on a domain.
When I plug in the USB joystick, I'll have to go to the control panel and select game controllers. I click on the properties and a pop-up is displayed. On the top left hand corner of it, there's this small square 'picture' with a plus sign at the middle indicating the joysticks' movement. As I moved up, the sign moves up as well and as I move down it does too. It depicts the movements of the joystick in use.
I was wondering how to code the exact same thing as I'm planning to place the square thingy in a 'question' image which will change after every submitted answer of the image using the joystick.
I have a picturebox (X=1200,Y=800) and there is an area in the picturebox starting at (X=32,Y=32 and is 256x256 in size). I want to keep the mouse pointer in that area for awhile.
Is there a command in vb that lets you do this? If not, can you restrict the mouse to one control?
i need the code for tracking the mouse movement in VB 2008. my program needs to make a pop-up window when the mouse have moven an inch ( ex.)
View 12 RepliesI have 22 30x30 shapes(players) moving around a simulated football field. This is the culmination of 2 years of basement hobby work and it looks pretty good except for some choppy movement. With 11 shapes moving around it really looks good, but doubling the load causes the flicker to be noticeable.I have double-buffered the control that does the drawin
View 6 RepliesI've made a program where a picture of a bee buzzes around the form in random movements (using random number generator code) and have put it in a while loop so that whilst the bee is visible on the form (hasn't flown off the sides) it moves randomly:
While (picBee.Top > 0 And picBee.Top < 725) And (picBee.Left > 0 And Timer1.Enabled = True)
Application.DoEvents()
For i = 1 To 3000000
Next
picBee.Top = picBee.Top - 2 + 4 * Rnd()
picBee.Left = picBee.Left - 2 + 4 * Rnd()
End While
So far the bee does stop moving when it meets one of the four edges of the form but I need to code it so when the be reaches the edges and stops a message box appears declaring the game over.
I have a StatusStrip at the bottom of the Form. When i run the form I am able to drag it and move it towards the top. So the StatusStrip just disappears. I dont want the user to be able to MOVE the strip. How do I do that ??
View 3 RepliesI've got a very simple screen saver program that displays alot of stuff in pictureboxes and labels...dynamic display. I want to end the program on any keystroke or mouse movement. I've placed the statement "me.close()" in Public Sub Form1_KeyDown routine (Form1/Events). Nothing happens when I type though. I've seached the forums.....keypreview is true....
View 1 RepliesOk, so I'm making a simple breakout game, using picture boxes as I didn't want to bother installing picture boxes.Every movement works perfectly fine; the pad moves correctly, the ball bounces right. Except when I move the pad while the ball is moving.If I move the pad while the ball is moving, the ball moves at the same speed as the pad, which is 10 times the speed of the ball.Well here's the movement code.
Code:
Public Sub Movement(ByVal Movement As String) ' Handles movement
If Not IsPlaying Then Exit Sub
[code]......
if its possible to have mouse events like mouse movements, mouse clicks and so on in a specific window only. I'm not sure if you understand this so ill give you an example.
Okay lets say i want this program to only click within a window like Firefox or windows media player only. So that means if i minimize the window it will still click inside that window while its minimized, and i could continue doing other things while its clicking inside that window.
So, I am just trying to get the snake to move after it collides with the picture box. Right now, the snake is moved by using the arrow keys. However, once it collides with "the food", it won't move.
Imports System
Imports System.Drawing
Imports System.Drawing.Graphics
[Code]......
The code I have is meant to be used during possible rapid mouse movement by the user. It is supposed to get the current location (works), move to specified location (works), mouse down(works), mouse up (works), then return the mouse to the old position. I added the delay because it seemed that it was having trouble registering the click if done too quickly. The problem I am having is that if the user is moving their mouse during the time the code is activated, their movement can throw the location of the mouse down or mouse up events off even with the added check routine I added.
'Get current mouse position
Dim MousePosX As Integer = Windows.Forms.Cursor.Position.X
Dim MousePosY As Integer = Windows.Forms.Cursor.Position.Y
Q = True
'Move mouse to Q Location and click
[Code] .....
i want to save location of Form Where mouse Move or Hover and its save in Two Listboxes like :
Listbox1 contain Width
&
Listbox2 contain Height
Basicaly i want to record mouse Moving. i m using Listboxes to save location
Mouse coordinates in Internet Explorer? Also, how do I use HEX code in VB for mouse movement or do you HAVE to use coordinates only?
View 2 RepliesI am want to play a prank on my friend by reversing the movement of the mouse. Like if the user moves the mouse, on the monitor, it will go in the opposite direction.
User - - -Monitor
UP------Down
Left-----Right
Right-----Left
Down-----Up
Is it possible to move my cursor in the right cell of datagridview when i press the enter key. By default it moves in the next row.
View 1 Replies