I'm trying to develop a simple program which will show a form with a listbox and a button. The buttom will allow a listbox entry to be selected and close the form. The entry will them be sent to the previous open application.
For example, I could select my postcode from the listbox and have it sent to the currently selected field in my internet browser. Or the current date to my text editor.[code]...
I created a simple test with SendKeys, and tried both SendWait and Send.[code]I tested in skype, and a few of the letters doubled. I tested in Flash, I got "Iffff yyouu cccaaaannn rrreaaaddd thhhiiisss,,, iiittt wwwooorrrrkkks."Clearly the issue is caused by lag. What can I do to prevent doubling (or tripling) of letters?
View 1 RepliesI am trying to develop a simple inventory system. I now have all the database set up and would like to know if there is any code that I can refer to that alert users when the stock is low (e.g pop out window informing users that stock is low or change the number of stock in the database table into different colors).
View 16 RepliesI am new in programming, I am trying to develop a simple calculator but I am unable to connect the addition, subtraction and equal sign buttons.[code]
View 1 RepliesI have an issue regarding Sendkeys Class, as i want to use this class in order to send some keystroke to the active application. As a first step i want to test the {Enter} keystroke, so in order to achieve that i made a simple application in vb.net 2010
Public Class Form1
Public Shared data As String
Private Sub SendintText(command As String)
[Code].....
By the way in order to use double quotes in a parameter you need "test"...(i have spent 15 min to find out) so it might be usefull...
I am using Visual Basic.net 2010 to try to develop a simple VB application to control a data projector using RS232.So far, I have programmed the 'power on' button to open the serial port and send the power on command.The port opens successfully, but the projector does not receive the command properly, so it never powers on the projector.The RS232 command for power on is: BE EF 03 06 00 BA D2 01 00 00 60 01 00
My code for sending the command is: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
I am trying to develop a simple math calculator that will allow the user to input the right-hand-side (RHS) of an equation into a textbox on the application and have the application evaluate the expression for a given value of x, which is also input
into the application by the user via another textbox.For example, if the user wants to evaluate the following expression,
y = 3 + 4*x + 5*x^2
then they would input into the textbox the RHS of the equation
3 + 4*x + 5*x^2
and then enter a value of x into the another textbox and click on the calculate button.I tried this:
answer = EquationTextBox.Text
but it doesn't work.
Want to develop POS program in visual basic?
View 2 RepliesI am trying to create a Macro for another program.I want to periodically send keys to the program, the keys are F1-F4.The program I am sending it to has different names from time to time.
I have a few ideas on how to do it but it's not working when I put it to code.I tried to make the program sleep and have a loop to send the f1-f4 keys and click on the program I want the macro in. However that does not work.
What is the difference between SendKeys.SendWait and SendKeys.Send?Send obviously will just send they key immediately, but does SendWait actually wait for the message to be processed or does it also send it immediately?The function's name itself is just confusing. Which one should I use if I want to send keystrokes to a 3rd party app immediately, or is there no difference? To me, a few milliseconds is a big difference.
View 3 Repliesi am trying to develop a program that will get all the processes in the task manager and from there, i'll get a specific application so that i will restart it. the problem is this:
I can call that specific application yet before restarting it i shall manipulate it's pause button before i can actually kill it,.HOw do i "click" the pause button on the called application? Can you help me with the code that i need to use?
I'm having problems with a stock program that I'm developing. It's a program that adds a quantity of products to a field called stock quantity in a table named Stocks. In the part of adding a quantity inserted by the user it's ok, it works, but it adds to all fields in the table.I need that the user may choose also the product Id of the product to add, in order to prevent the situation above.
[code]...
I have no problems with the Syntax Errors.So far the only problems I'm having are with the Runtime Errors and Logistic Errors.
View 4 RepliesI'm starting to work through Murach's ASP.Net 4 Web programming with vb2010.
Do I leave the 2010 studio default collection of settings from Visual Basic Development to Web Development or Web Development(Code Only) in order to follow the examples and learn to develop web pages? And are there other things I should do to set up the enviornment for persuing this.
As I need a program to develop an ebook, I wrote one. But perhaps I am re-inventing the wheel. Does such a program already exist in visual basic, that is to say is it available in the forums? If not I am willing to upload it.
View 16 Repliestrying to find out what i need to do to use the "sendkeys.sendwait" method in other programs. I found a method using C# but I need a solution for VB. The one I found for C# was this
//using System.Runtime.InteropServices;
[DllImport("User32.dll")]
public static extern Int32 SetForegroundWindow(int hWnd);
[code].....
I want to develop Modbus RTU Master program ..
I am expert in Modbus communication and I have designed the Modbus pre-programmed remote controls ,, Now I want to interface some Modbus RTU slave devices to my own developed application ...
I am much familiar with the Modbus RTU syntax and I've tried following to initiate the the master query but I am getting initial 3 bytes ok ,, rest of the bytes are changing the values on COM port so slave is not responding to my command ..
CODE:
I dont know how 2 develop PDA system... using vb.net
View 3 RepliesPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
CheckBox1.Checked = True
While CheckBox1.Checked = True
SendKeys("{END}")
End While
End Sub
That is the code, the error is "SendKeys is a type and cannot be used as an expression."
I want to develop Modbus RTU Master program ..I am expert in Modbus communication and I have designed the Modbus pre-programmed remote controls ,, Now I want to interface some Modbus RTU slave devices to my own developed application ... and looking for kind guidance ..I am much familiar with the Modbus RTU syntax and I've tried following to initiate the the master query but I am getting initial 3 bytes ok ,, rest of them are changing the values on COM port so slave is not responding to my command ..
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Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click
Dim BYTE1 As Byte = 1
Dim BYTE2 As Byte = 6
[code].....
I'm trying to develop a program structure in very broad terms. At this point, the Forms used do nothing but call other Forms and allow for their closure. After startup and initialization activities, I want the user to set up options and run the program. The program can be run again (click one button) and again with the same options, or (click another), the options can be changed for the next and subsequent runs. Clicking a third button will cause shutdown activities to be performed.
Sounds pretty simple. However, I get the options form the first time, but subsequent ShowDialog calls cause the form to pop up (I detected a Load and an Activated call) for an instant, then disappear, and the program rolls on without permitting option selection, even though the key variable NewSetup is definitely True.
Code:
Public Class RunMain
<STAThread()> _
Shared Sub Main()
[code]....
am looking to develop a simple program which inputs a students details and prints to the output,
View 3 RepliesI need to know how to develop an inventory system using vb.net with msaccess
View 1 RepliesI want my program to: send.sendkeys(textbox1.text) as many times as someone types in so for example if someone types in 20 it will send it like this:
send.sendkeys(textbox1.text)
send.sendkeys(textbox1.text)
send.sendkeys(textbox1.text)
send.sendkeys(textbox1.text)
[CODE]...
I am trying to develop a program that will allow a user to automatically log into a website with a username and password and click login, which works fine, However after clicking login i am trying to have the pragram click another button to submit a file. This is where the program bombs. This secondclick will work in a separate event but not in the same event as the login.
View 9 RepliesI want my program to: send.sendkeys(textbox1.text) as many times as someone types in so for example if someone types in 20 it will send it like this:
[code]...
Is it possible to develop a program in vb.net which can find the location of vehicle in a cctv camera range?if possible ,what are the APIs and technologies used for it?can any one suggest any link or the steps involved in this process...?
View 5 RepliesI'm looking for the underlying Win32 API call that the DotNET Framework invokes on a SendKeys.Send or .SendWait call, or a Win32 API Equivalent to SendKeys. I've already experimented with SetKeyboardState which seems like the way to go, except that it does not raise any kind of keyboard event that causes the set keystates to register with an active application or the OS (at least not until another key is pressed; for example I can meddle with the keyboardstate before events process on a natural keystroke, but I can't invoke a keystroke programmatically).
View 1 RepliesI have a VB.Net 2.0 application, on my form I am using a Component ONE PDF reader control.I am trying to send to this control a F4 keystoke to close the navigation panel when it opens the PDF file. It is not working or not accepting the sendkey.I put focus on the control first. Code below:
Me.PDF1.Focus()
Me.PDF1.Select()
My.Computer.Keyboard.SendKeys("{F4}", True)
I have tried different variations of the Sendkeys with no success.
Im trying to create a program with a simple gui that enables me to search for and select parent folders containing child folders containing multiple files and then validate those files based off of constants i set per child folder and file.
Example
User selects Parent FolderX
Parent FolderX > (ChildFolder1 ( Constant for ChildFolder1 says open file 4 ) > File 4
Compare multiple strings of text in a specific order based off of file name to constants i have set for that named file Then continue to ChildFolder2 ( Constant for ChildFolder2 says open file 16 ) > File 16 Compare multiple strings of text in a specific order based off of file name to constants i have set for that named file If there is any constants not read in one of the files after all have been checked, return msgbox with a notification and write .txt log with child folder and file names to specified directory?
