I need to capture when a user keydowns the ALT key and then by code, releasing the key.
I have sent keys before with the help of keybd_event but I need to know if there is another (easier) way of releasing a key by code...
Capturing ctrl keys in form KeyDown event
View 8 RepliesI am trying to capture a stream from a website into my vb.net application. I was able to do it before, but the site is now updated and I cannot play the file again!!!ere is the link:I tried using several methods. looked at the source, flash capture programs, even fiddler to check the requests, but it didn't work at all
View 1 RepliesI'm looking to make a program that would capture your whole screen, then have the picture display on the screen (simulating a frozen screen) to where the person handling the program could select a partial segment of the screen with their mouse and then save to a folder.
1. I have no idea how to go by doing this
2. My form is constantly minimized, so I have to do it without MouseDown on the form and whatnot.
How would I go by doing this?
I have been working on an image capturing tool for a long time now & I was wondering how some of those programs are able to make an aero capture of a form.I know you can capture a window if you have it's handle by using the BitBlt, but that doesn't keep the transparancy of the aero form.Let me give you an example:I did a lot of research on google but I never found anything close to something that explains how to do it.
View 4 RepliesI wrote a gui for a console app, wanted to captaure console app standarderror and standardoutput in the same time. I write a code, but it's not executed in the same time. I searched msdn and found that using DataReceivedEventHandler can be asynchronously collect the redirected StandardOutput or StandardError stream output of a proces. But I dont know how to apply it to my code. please help me. i wanted to collect standardoutput and standarderror and append it to a textbox. here is my code,As far as I understand, I have to read one stream synchronously and one asynchronously to avoid deadlock situations.But now it's not output in the same time. having delay issue for standarderror.
Dim start As New ProcessStartInfo("C:WindowsSystem32java.exe")
start.Arguments = "-jar" + " " + "args"
start.CreateNoWindow = True
[Code]....
Well, the title says it all this time. After I click "yes" on a msgbox,I want to launch the Windows Logon Screen that I can normally launch by pushing Ctrl+Alt+Delete, so how would I do this programatically, or if there's any way to launch that Windows Logon Screen I wouldn't mind.
View 6 Replieshow to get a keydown even to work but in 2010 this seems to have changed
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If e.Keycode = Keys.Enter Then
MsgBox("test")
End If
End Sub
Apparently "KeyCode" is not in use anymore..
I have a DataGridView and want to update the contents of the CurrentCell while the user is typing.e.g. In a cell of fractions I want the user to be able to enter .957 - As soon as the user types the . I want to programatically change it to 0. without the user being aware of the change.
View 3 RepliesI'm working on a project that contains hotkeys, but I don't wish to have global hotkeys. At the moment, I'm using KeyDown and e.KeyCode for hotkeys. I've created test projects where these worked perfectly fine, but on my main project, they don't register.
CODE:
I am using the keydown event so that when i press the right arrow the image changes but when i run it nothing happens when i press the arrow key.I have enabled the keypreview Properties?
Private Sub Level1_KeyDown(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If tmrWalk.Enabled = True Then
Else
If e.KeyCode = Windows.Forms.Keys.Right Then
[code]....
I was wondering if there is any advantage to do everything programmatically instead of using design view to create forms, controls etc. Would there be any difference in size and/or performance after you compile it? So far I've been doing pretty much everything programmatically, specifying all the properties that aren't default for my forms controls but I am starting to wonder is there are any advantages to this, apart from making it easier (sometime) to manage and change the behavior of my controls.
View 10 RepliesCan I let my program select an item in a listbox based on a string (f.e. textbox.text)?
So basicly, if an item in my listbox containst a certain string (text from a textbox), it should select that item..
Got a new one...
Private Sub Form3_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
e.SuppressKeyPress = True 'makes it quit dinging when press enter
[code].....
I have an application similar to calculator, with button from 0 to 9, Enter and Clear. I made it possible to use the buttons by clicking on them and also by using numpad, like shown below: Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Select Case e.KeyCode
[Code]...
Is it possible to set focus on the keydown event so after the button control, sets the focus into the keydown? although says often control can have focus,.Putting a button and a keydown event on a form...
View 2 RepliesI made a program that depends on mysql.data.dll, do I have to distribute the DLL along with my .exe file? or is there a way to make it to where I dont need to include it so the user only needs the .exe
View 5 Repliesim currently developing a program, and i have run into some trouble: you see i have 24 pictures shown in 6 pictureforms (timer) the problem is i wanna delete the pictures in an undo function (after taking them from a webcam), but the system tells me that the pictures is currently in use. i have tried disposing them and everything but i cant seem to get them released and then deleted?
View 2 RepliesIm using a keyboard hook in an application to capture 'hotkeys' pressed.The idéa is that if the user of the computer presses ctrl + alt + 1 then Sendkeys.Send("string of text") should execute and the string is sent to the focused window.
However - the user still is physically pressing ctrl + alt which disturbs the string being sent in sendkeys.
Is there a way to programatically release/disable ctrl and alt keys in the code just before sendkeys, and enable it again after sendkeys.Or - is there a better way of sending the string of text without having to disturb the keyboard?
The complexity of the newer express editions. when i debug it seems to output to another filder not debug. but now i build a final release. I run the program and want to find it as though a new user woudl find it. i.e with all original settings etc...but when i run it it has all the prvious settings. how do i know im not releasing the software on the net with my settigns?
View 2 RepliesI've been trying to send a test-version of my program to the person who has instructed me to create it.Now, the problem is, every method I try seems to fail, either by crashing on start-up or saying it requires Visual Studio to be installed.I've tried giving him the '.exe' from Debug, Release and it just crashed the moment you start it up. (And Windows automatically starts looking for a solution but of course finds none.)
And if I use the "Publish" function and put it in an install, that's when it says it requires Visual Studio to be installed.Is it so difficult to distribute something made in Visual Studio? :< I'm probably overlooking the obvious here..
Well, I've searched numerous threads and I'm stumped. Though my VB.net experience is newb status.I'm interacting with Excel Workbooks/worksheets with:
Imports Excel = Microsoft.Office.Interop.Excel
Now I'm fairly adept with getting data from the excel sheet with no problem.But each and every time I quit my widows form, or execute a new command_button click to repeat an operation, in the task manager, excel.exe then opens up a new instance.Releasing the the Excel COM object seems to offer a bit of head scratching.I realize that you can get your form to activate and retrieve data from whatever spreadsheet has been directed to be opened, but I can't seem to put it back and close it correctly.I have read about the Marshal. release object methods and garbage collection with no luck so far.Do I need to import another liberary that completes this operation? I would asssume this would be taken care of as apart of the:
Imports Excel = Microsoft.Office.Interop.Excel
close excel instances opened up by my windows form? Somethig like this:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim xlWorkSheet As Excel.Worksheet
[code]....
(so that it is no longer looked at as "read only" when the spread sheet is opened up from directly from excel)As A minor work around, I've teminated it from the task Bar with proc.kill() but this does not help because my ultimate goal is to just simply realease the excel sheet when my windows form is finished getting its data.This following code does not seem to work.
releaseObject(xlApp)
releaseObject(xlWorkBook)
releaseObject(xlWorkSheet)
I wrote an application in my free time that helps people create certain files when they want to create a custom level for some game. The application of course is completely free, I made it for fun and to help the community. That community has now requested that I also release the source code of my application, in case I stop being interested and they ever want to fix some bugs (this has happened loads of times in the past in the same community, there are loads of good applications out there with some small annoying bugs where the creator has gone missing and the source is unavailable).
Therefore I would like to release my full source code, but not before consulting here how exactly I should do it..I could of course just zip up the entire Project folder and upload it, but I feel that is probably not the best way to go about it..
[Code]...
Im opening an excel document with vb.net and i dont want vb.net to close it but to release excel so that when the user closes excel it does not remain as a running process... which it currently is doing here is the code i was using
[Code]....
I have a program written in VB.NET which stops a service that uses file x, modifies x, and restarts the service.
I have modified my code for testing so that it just reads in the file as a string and immediately writes it back out.
Shell("net stop " & SERVICE_NAME, , True)
Dim myReader As System.IO.StreamReader
myReader = My.Computer.FileSystem.OpenTextFileReader(x)
fileString = myReader.ReadToEnd()
[Code]....
The stopping of the service is no problem, and modifying the file is no problem, but when the service starts it stops immediately because, as best I can guess, the file is in use. Even when I try to start the service manually, it stops immediately. However, I found that I can open file x, click save without modifying anything, close the file, and start the service and everything works correctly.
If I comment out the writing part, everything works fine.
Also, the file I'm modifying has a .conf file extension. I don't know if this is relevant.
I have a problem with releasing locks on a thread. [Code] If Me.IsStarted Then 'checks if my service is started and ready of service requests 'code here to enqueue my job and objRxResult with the service so it can populate it with the result before Pulsing back 'the service has its own thread that it dequeues jobs off of and processes them on it own time 'during this key enqueue phase we block attempts to stop the service, thus the _objIsStarted lock [Code].
View 4 RepliesTrying to use a str = Replace, but having issue. Seems that after it does the first string replace it will not let go of the file or the Dim or something???
'Make first file
Private Sub MakePwdFile()
Dim fso, inputFile, outputFile
Dim str As String
fso = CreateObject("Scripting.FileSystemObject")
'1 means for reading
[Code] .....
I have some questions about mysql database; I have set up columns and rows on mysql database and I would like to make mysql connection for a test before I would release the project in the near future, but my doubts is that how would I be able to keep mysql admin username and password details secure in the project without anyone could find out??Secondly, I don't want anyone to crack my project to get the details, which it will put me and other clients at risks.
View 22 RepliesI need to detect shift + arrow key in blank form. But it's not working. I also tried overriding IsInputKey method but it only detects single key press (like arrow key) but when multiple key are pressed it simply doesn't work.
View 5 RepliesI would like to know if there is some simple code to release a child control from it's parent control, without having to name the parent control. In pseudocode, I'm looking for something like this:
[Code]...
