Can Sendmessage Simulate Keypresses
Feb 25, 2010[URL]
Damned. Is there a managed code somewhere in vb.net where mortals can simulate key presses?
Is there an e-book or book somewhere about it?
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Simulating Keypresses With Sendmessage?
Nov 30, 2009I use keybd_event and mouse_event to simulate keypresses. I want taht to still work when the user is switch (Xp supports several users as we know).
Well, it doesn't.
I've heard sendmessage is more reliable,.
I manage to simulate click easily.
SimulateClick2 = SendMessage(hwnd, BM_CLICK, 0, 0)
Now, how to do so to simulate keypresses?
How To Simulate Keypresses And Releases
Dec 28, 2010How can you simulate keypresses and releases? I know you can essentially hit a key with Sendkeys.SendWait, but how can your code press and hold q, for example? I essentially wish to be able to call something like press("q") and release("q"). The effect would be the same as physically holding them down.
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Nov 11, 2010Do anyone has any idea of how can I drop files to another app? I have found that it can be done with SendMessage WM_DROPFILEs, but I don't know how to structure the wParam.
I also found this on MSDN [URL]..But I still don't have any idea of how to do it,I also found this code, but is for Delphi:procedure DoDropFiles(Wnd: HWND; Files: TStringList);
[Code]...
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Apr 17, 2012I found the code linked below on on of Microsoft's websites for listening for keypresses, however I can't seem to ge thte code to respond?
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Feb 1, 2011I want a way to be able to control all the keypresses on a given form. I tried overriding a WndProc of a form to achieve this but I noticed that my text box keypresses are not going to that wndproc. Whats the way to achieve this?
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Jun 20, 2008I am currently creating a Space Invaders game. Basically what I want to do is being able to move and shoot at the same time. The problem is that whenever one button is pressed to execute an action it cancels out any other button being pressed. I don't want that to happen. Currently I am just using Key down. How I can have multiple key presses at once?
Private Sub frmain_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Dim Loc As Point
Select Case e.KeyCode
Case Keys.Left
[Code] .....
That's my code. This is basically the last thing i need done in my project.
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Sep 18, 2010im trying to click a checkbox im using Sendkeys.send("{tab 13}")
sendkeys.send("{+}") which i have been told will click the checkbox but unfortunately its not happening.
Detect Keypresses In Program?
May 22, 2009How do I make VB constantly check for keypresses?[code]...
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Mar 31, 2009I've started building a small game where you move around a PictureBox control with keystrokes using the arrow keys. Everything was working fine....until I added a button.
Now the button steals the focus so that every time I hit an arrow key hoping to move my image, it just selects the button.
Is there any way to make the button selectable only by mouse click?
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Feb 26, 2010I have the following code to handle keypresses on the form:
Private Sub Form1_KeyDown(ByVal sender As Object, _
ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Debug.WriteLine(e.KeyCode)
[Code].....
The first time I press any of the arrow keys the code is not executed and a NumericUpDown(NUD) on the form gets the focus. The rest of the times the arrow keys are pressed everything is fine, until I click on a button. Then the problem repeats, focus NUD, then fine.
[2005] Detect Multiple Keypresses?
Mar 4, 2009I'm making a mario-like clone and I just finished the jumping code. The only problem is that moving while jumping is extremely hard because if you hold down the up key and right key at the same time, neither one activates.
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Dec 2, 2009I am attempting to keep user inputs into our application as clean as possible. One way I am attempting to do this is not allowing incorrect data type in fields (not allowing alpha characters when expecting numeric values)I found and implemented the following code:
Private Sub txtSocial_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtSocial.KeyPress
Dim UserKeyPress As Char = e.KeyChar
Dim isKey As Boolean = e.KeyChar.IsDigit(UserKeyPress)
[code]....
Count The Number Of Keypresses And Keyreleases And Display The Value In The Labels?
Mar 23, 2010The user has to enter the text in the textbox , to write a text user need to press the keys and release the keys. Write a code to count the number of keypresses and keyreleases and display the value in the labels.
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May 26, 2009im trying to make vb.net translate input from an external device into keypresses. when bit = 1 i want the key down, when bit = 0 i want it up unfortunately with sendkeys it just sends the same keystroke over and over again. ive googled for days without finding a good answer.
View 7 RepliesCant Seem To Get Sendmessage To Work
Aug 24, 2010CODE:
Whats wrong with this code? There is no error. But nothing happens when exicuted.
Sendmessage To Webbrowser?
Mar 24, 2010[code].....
View 8 RepliesUsing Sendkeys/sendmessage?
Aug 14, 2010I'm trying to send some words to an application I'm running (exe file, no webpage). To do this I run my vb program and minimize it, so that the application I want to send the words to have focus.Now I've tried sendkeys, but it seems sendkeys only sends my first word and does nothing with the other words. The code below is called 4 times by the main form
If i > 3 Then i = 0
i = i + 1
If i = 1 Then verhaal ="some text 1"[code]....
but this throws in a overflowexception was unhandled error at the apiSendMessage(hWnd, WM_SETTEXT, 0, "Hello") line.I've tried several things but I can't figure it out how to send multiple words to the application without problems .
VS 2008 SendMessage In .net?
Sep 26, 2011I am using SendMessageTimeout to send messages (IPC) to talk between applications ... works fine in vb... but i am trying to build a vb.net implementation to talk between existing vb6 apps and .net ones...
So far i can successfully send data from vb.net to vb6 using:
vb
Dim b = System.Text.UnicodeEncoding.ASCII.GetBytes(Command)
Dim Data As New COPYDATASTRUCT
Data.dwData = New IntPtr
Data.cdData = UBound(b) + 1
[Code]...
.net - Get Position From WM_LBUTTONDOWN SendMessage?
Oct 13, 2011I would like to get the x, y position from the Params when the WM_LBUTTONDOWN is sent in vb.net.I got this to make the param but how do I get the position from it.
IntPtr lParam = (IntPtr)((y << 16) | x);
My function:
Protected Overrides Sub WndProc(ByRef m As Message)
Select Case m.Msg
Case WM_LBUTTONDOWN
[code]....
Update: I just tried this and it works perfectly.
Dim pos As New System.Drawing.Point(CInt(m.LParam))
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Feb 23, 2011Private Const WM_KEYDOWN = &H100
Private Const WM_KEYUP = &H101
Private Const VK_BACKSPACE = &H8
[code].....
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Jul 27, 2009I have this code:
Private Const MOUSEEVENTF_LEFTDOWN = &H2
Private Const MOUSEEVENTF_LEFTUP = &H4
Dim WindowHandle As Long = FindWindow(vbNullString, "Ultima Online")
SendMessage(WindowHandle, MOUSEEVENTF_LEFTDOWN, 0, 0)
SendMessage(WindowHandle, MOUSEEVENTF_LEFTUP, 0, 0)
I know it is getting the windowhandle fine, because I made a conditional statment that pops up a messagebox if windowhandle = 0 The problem is that it is not sending the mouse click to the window.
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Mar 24, 2010Ive been trying to figure out how to sendmessage VK_Space. i found an example and just tried it how it was, but i always get an error.My code
Public Class Form1
Private Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As IntPtr, ByVal wMsg As IntPtr, ByVal wParam As Long, ByVal lParam As IntPtr) As IntPtr
[code].....
Sendmessage Mouseevent Not Working?
Jul 26, 2009bear in mind i am pretty new to thisnow "Ultima Online" is the title of the window/game im trying to send a simple mouseclick to..
View 2 RepliesVS 2008 Need A SendMessage / PostMessage Example
Dec 13, 2009Can anyone give me a SendMessage/PostMessage Example? I want to make SendMessage/PostMessage work like SendKeys, except instead of sending keys to the app in focus, it will send keys to a certain app. I've looked at a lot of examples that use notepad, but they all need to use "find" the "EDIT" thing. I dont want that. Is there any other way?
View 3 RepliesVS 2010 : SendMessage To A Text Box?
Jun 20, 2011I can't seem to get my program to send anything to this text box. I am able to receive the handles of each object, but never able to send to it.
Here is my code.
vb.net
Public Const WM_SETTEXT = &HC
Public Const WM_KEYDOWN = &H100
[code]....
It wont even set focus.I have the right amount of tiers ... perhaps im in need of the use of GetControl?
Winapi - Send Key 46 (Chr(46)) With SendMessage?
Jun 14, 2012I am Automating IBM iSeries Emulators using VB.net, created GUI that embeds the external iSeries Emulator Window in a WindowsForm Panel using the "SetParent" API .. To communicate with the iSeries Window I use the SendMessage API to send Key's to the Screen. I am aware of the sendkeys.keys in .net, but this way I dont have to SetForegroundWindow and reactivate my Form.
[Code]...
Any Harm To Monitor In Using SendMessage Function
Nov 26, 2009I developed a little app which uses SendMessage function to turn off monitor. My friend asked me whether using the app regularly will harm his monitor. He had some issues with his mother board when he used a similar app. Is there any harm (for hardware) in using the function to do things like these?
View 1 Replies