I'm currently using this
Public Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Integer) As Short
Public Function GetKeyState(ByVal Key1 As Integer, Optional ByVal Key2 As Integer = -1, Optional ByVal Key3 As Integer = -1) As Boolean[code].......
But even when I do press control, the message box doesn't pop up.
Private Declare Function GetAsyncKeyState Lib "user32" Alias "GetAsyncKeyState" (ByVal vKey As System.Windows.Forms.Keys) As Short
[Code]...
My Intent:I am developing an application for myself which will take a series of keycodes pressed by me(even if my program is not in focus) and execute commands associated with it.It is basically like developing hotkeys.What I Have Tried:I have searched well and tried to implement GetasyncKeyState() in my program and it works well....but the problem is, it tells if a certain key is pressed but not which key was pressed last, which is what I want........I need to know which key was pressed so that I can make a word out of it and check if it equals my predefined names to execute the command, something like this:
Dim word = lastkey
word = word + lastkey
if (word = "startnotepad")
[code]......
When I press F7, nothing happens. I got the Virtual Key Codes from here.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If GetAsyncKeyState(76) Then
MsgBox("")
ElseIf GetAsyncKeyState(77) Then
[code]....
I use Visual Studio 2003, VB.net, NetFramework 1.4 and Windows XP I have been using the following Code Snippet for a number of years in both Web Services and Windows Applications. However suddenly around the 29th September 2010 it has stopped sending E-Mails from both Web Services and Windows Applications. The same problem has happened not only to my own Network but on two other Networks, one using XP as its Server and the other using Server 2003. All 3 of these are using different ISPs.
[Code]...
on Sockets msg problem see pic and source code edit it for me big
View 3 Replieshow can i send a message to a different program to press a button on it without me doing it with my mouse?
View 2 RepliesI have a password form that contains a load of buttons. The user has to enter a four digit, numeric, password to procede. They do this by pressing one of 10 number buttons on the screen, the keyboard isn't used. If they enter the wrong password an error message pops up (this isn't using the error tool I just added a message box msgbox("Error Code #638492") or something) if the user doesn't enter a password, after 5 seconds (I use a timer called Timer1 with an interval of 5 seconds) the form closes and it goes back to the previous page.
My only problem is when I close the form using Me.close(), the message box is still displayed. And if the message box is still displayed it doesn't work. The form is miminized (I have the application in full screen) so this is very bad. What I need is to simulate the enter key press then close the form so the enter key is pressed, the messagebox close then the password form closes.I can do this using SendKeys.Send("{ENTER}"). Here's the sub I use:
[code]...
However, if I don't have the 'Close()' line of code in the message box closes as it should. If I don't have the message box open and I don't use the SendKeys.Send("{ENTER}") then the close() line works perfectly and close the password form as it should?
In Key Press Event i have put the logic of search in textbox, when i press enter key it will take the values from textbox and brings the data in DataGrid.In another event of GotFocus there is an logic of autocompletestring collection from Table. If i type a in that textbox it will shows all the suggested string in that.If i comment the logic of GotFocus Event for textbox for autocomplete suggestion then only then Key Press events work else its not working.
Code:
Private Sub CustomerName_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles CustomerName.KeyPress
If e.KeyChar = Chr(13) Then
[code].....
I get the following error message whenever I press the delete button in my program.
Unable to complete the delete/cancel operation: Update requires a valid delete command when passed DataRow collection with deleted rows.[code]....
I have the following
[Code]...
I want to make it so it doesn't preform a button click if you press CTRL and Enter.
Is there is any option to send a message to a window to "press" on the maximize button? I thought using the sendmessage API but I don't really know how, I alreday got the window handle, the problem is how to send the message?
View 2 RepliesI have Visual Basics 2008 express and I tried to make a autotyper, so this is my
Button1: Timer1.Start
Timer1: Timer2.Start
Timer2: SendKeys.Send(Textbox.text)
Button2: Timer2.Stop
So it was my first try ever with VB and it kind of worked... Only 2 problems;
1. Button 2 doesn't really work, I have to click it really many times, then go to a different window, then click it really many times again, in the meantime it keeps on spamming
2. How do I make my autotyper press enter every single time after the textbox message was typed?
This is for a blackjack game. Every time the dealer has 3 cards in his hand (first 3 labels) message boxes are supposed to appear corresponding to the value of these labels. When i click my button and 3 labels have a value in them, even thought they are equal to less than 17 and less than 21 a message box doesn't appear. [Code]
View 14 RepliesI'm working on this application, and I was doing the error checking on it, and I can't get the message box to show.
[Code]...
I want a message box to show when a username doesn't exist. I figured this would work but an error shows saying 'FileNotFoundException was Unhandled', for the fist line.
Dim UserFile As New System.IO.StreamReader(sPath & "" & UsernameBox.Text & ".txt")
Username = UserFile.ReadLine
Password = UserFile.ReadLine
[Code].....
How can I check for my combo box to have a selected item? I want to display a message box if the user doesn't select anything from my combo box.
View 3 RepliesI have this function I put together with help online and it works just fine until the program runs over night. I don't think it is night time that is the problem, just the long run time. I take bitmaps and place text on them then convert them to icons so that the image can be used on the system tray.
[Code]...
im trying to generate an error message to the user to let them know a file doesnt exist.So far ive got the user to enter the file name into a textbox, they click search and if successful will load a new form with a PDF file reader built in( AxAcroPDF1 )everytime i enter the right file name i get the file loaded, if enter the wrong name the File page still loads with no pdf and no message saying file doesnt exist.
Private
Sub PictureBox1_Click(ByVal
sender As System.Object,
ByVal e
[code]....
I am looking how to set events to a webrowser which is being created by the following:
[Code]...
I need my application to go to a website, press a button on the website to get data, and then get the data that it shows all without the user seeing the webbrowser control. I'm doing this for a little project. The user could normally just go to the site and press the button themselves, but that would take to long. So how do you programmatically do this?
View 8 RepliesI have just installed VB.Net 2005 to do my Uni project at home.Why cant I find the Data Control in the the tool box and nothing when I press CTRL and T..I need to define the ado control name but having no luck as yet.
View 3 Repliesso I've begun developing another little rpg like game w/ visual studio 2010. I'm trying to have the arrow keys control a little square in the form but I've searched all over the internet and haven't found too much useful info. So first thing's first, how can i make a key perform an action, and then, if you know how, what code do i use to make it move the square on the form.
View 3 Repliesi want to open or start a new application ( example : notepad ) when i press a control ( example : button )how would i do this?
View 2 RepliesI want to create one help file for my whole application. and once user press help button next to any input control then appropriate help topic from file should get display. how can i create this functionality in vb.net?
View 1 RepliesI am really confused! My program doesn't work if I don't have Visual Studio here in my PC. To test it I have uninstalled Visual Studio. But my program doesn't work though Flash Player is present there (I have used Flash animation in the first form).
To be more sure about it I have installed Flash. But it's not working! That means the Flash animation file (.swf) is not making a problem! It needs support from Visual Studio to start. Doesn't it mean that some files are not attached with a setup file as a result it needs Visual Studio to run? Let me tell you how I create a setup file of my program.
CODE:
When I click on the icon of my program it shows the error message
CODE:
Reporting details: This error report includes information regarding the condition of WindowsApplication1. When the problem occurred the operating system version and computer hardware is use; your Digital Product ID, which could be used to identify your license; and the Internet Protocol(IP) anddress of your computer.
I have a really annoying problem. I use GetAsyncKeyState() to determine if a key was pressed or not.Unfortunately, that event fires as long as I hold down a key. Is there any way to check if a Key was released?
View 1 RepliesI have a program that tries to grab keyboard imput using GetAsyncKeyState.On XP 32 bit and win7 32 bit it runs fine but on Windows 7 64bit it doesnt regester any keys being pressed. Any Ideas?
If GetAsyncKeyState(Keys.F12) < 0 Then
If isF12 = False Then
If toggle Then
[code]....
I have looked at many of the tutorials, however, using 64-bit windows vista home premium using those examples, it doesnt seem to work, however, I don't have other computer to test on, is there a good way to do what GetAsyncKeyState does on my system?
View 7 RepliesIf CheckBox_StartHotkey.Checked = True Then
If Not ComboBox_StartHotkey.Text = Nothing Then
Dim StartHotKey As Boolean
StartHotKey = GetAsyncKeyState(ComboBox_StartHotkey.Text)
If StartHotKey = True Then
StartActions()
[Code]...
I am trying to input the function key that a user has selected from a ComboBox (containing the function keys F1~F12 as options) into the GetAsyncKeyState(). However, since the ComboBox_StartHotkey.Text is a string, it cannot be converted into Long data type needed for the GetAsyncKeyState() function. I have tried Conversion and Parse Methods but what I try doesn't seem to work. Anyone know how to effectively convert a String (such as F6) into a Long data type for using in the GetAsyncKeyState() function in this case?
I used the tried to use the ItemData property to hold the Key Code representing the Function Key.