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.
I am trying to get the position and text of all DeskTop icons, by sending a SendMessage to the desktop's listview, using LVI_GETITEMTEXT. Works oke on 32 bits, but on 64-bits I always get an empty string back. I also tried to do this using LVI_GET_ITEM< but the same result. No errors, but also no text string. (I do get the x,y position of the icon). What is wrong here?
First of all, is it even remotely possible to have PostMessage or SendMessage "press keys" inside of a Fullscreen game? I.e. use the Chat? (Requires the user to activate the chat box, type in the message, then send it, which is all done with the keyboard)
I've tried many different ways using WM_KEYDOWN and WM_CHAR, and nothing worked.
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I am trying to get it to activate the user's chat by pressing enter, type in the text, then press enter again. Except, I would like for the game to be minimized and allow this to work. Or, if while the game was running in fullscreen, that I was able to use SendMessage or PostMessage to type text into a Command Prompt Window.
Public Sub setmouse(ByVal xx As Double, ByVal yy As Double) 'New method Dim pt As Point = MousePosition()
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What the sub/function is meant to do is move the mouse cursor on the screen. The values passed to it and the amount to shift the cursor in the x and y in pixels. The setcurpos works fine but i thought this new method may be more accurate as it uses screen co-ordinates and the full range of the mouse.
But it does not work. Is there something wrong with this code?
The code works fine when I made an app using it, but not with the dll. Is this because the dll itself does not have a form?
I'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 .
I 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
I 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
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Update: I just tried this and it works perfectly.
Dim pos As New System.Drawing.Point(CInt(m.LParam))
I am trying to write a small plugin for eventghost for one of my software (audio player). EventGhost can send SendMessage or PostMessage messages to control other apps. How can I receive such messages in a VB.NET app?
Ive 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
Can 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?
I 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.
I 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?
I am launching an external that brings up a window that is split into two frames. I am able to get the handle of the frame and what I want to do is click inside the frame in a certain area.
For example, if I open "System Information" by launching msinfo32.exe, how would I click on Internet Settings in the left window pane? I don't need the exact coordinates, just an explanation of how it can be done using SendMessage or PostMessage.
I wasn't sure if the end two numbers would be coordinates, but if they are, I've tried different numbers and can't seem to get it to click anything other than the first item in the list of the left window frame.
I need an API for sendmessage and sendmessagetimeout for my VB .net application. I have searched quite a bit, and everything I find doesn't seem to work: either the message just doesnt seem to be sent, or the message appears to be sent with the msg parameter always 0, and the wparam setting as what I enter for the msg setting. Pinvoke's also always seems to throw an AccessViolationException for I have no idea what reason. I tried playing around with maybe just where I put the variable, but unsurprisingly, there is not a simple logical switch of the variables.I have tried pinvoke's:
<DllImport("user32.dll", SetLastError:=True)> _ Public Shared Function SendMessageTimeout(ByVal windowHandle As IntPtr, ByVal Msg As Integer, ByVal wParam As IntPtr, ByVal lParam As IntPtr, ByVal flags As
I am currently writing a program that must extract data from the screen of another application. This application is a client side database interface. When the client retrieves data from the database it is displayed on this form. I am currently using.
i have read around 500 websites/forum posts about this already (felt like 500 :)) but i _never_ got it to work.i'm trying to click on a specific position in a background window.. like when notepad, another app or a game is minimized.this is the code i've got now.. (just parts of it, i have a lot more but its commented and not working either):
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _ ByVal wParam As Long, ByVal lParam As Long) As Long Dim DaWord As Long DaWord = MakeDWord(800, 600)
Example I would want my program. To press a button on a window. Like notepad.exe I already know how to get the window handel and call gettext or send. To the edit textbox. But how would a preform a click event? I think its called child class? Say I wanted to click the fille button. How would I start ? I know how to get the name threw spy++ but am not sure how to sendmessage to the button.
another problem related to what I posted earlier but a different problem. I've got the open window list and all that, now I'm trying to get icons from the windows... but the only window that I can get to return an Icon is internet explorer?
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I know all the variables are set correctly since obviously it can get Internet Explorer's icon, but I can't figure out a way to get icons from any of the other windows. I've tried ICON_SMALL BIG and SMALL2
how to type a hello word in notepad using sendmessage? i just want to write a simple word like "hello" in notepad and also, what is the difference between sendmessage , postmessage and keybd_event, etc?
I have read numerous postings but this is my first contribution. I am trying to use Sendmessage to send a string of text from one application to another. I have created a sandbox to work out the details. I have used the Notepad example and I have gotten that to function. This is what I have that works.
I have this window with hwnd = 132240. I am trying to use WIN32 API's SendMessage function to send a WM_SETEXT message to the window.Code that I have written
Const wm_settext As Long = &HC 'sendmessage(66824 Dim rc As Long
I was wondering if i have multiple emulated mouse devices created already can I have a window that accepts WM_INPUT messages be sent messages as if it was from a specific emulated mouseFor instance, I have mouse device 1 (not system mouse device but the extra one) installed but wish to receive messages from it and the system mouse still and be able to send messages that appear as if they are coming from that device.Is that scenario possible?I can provide hardware specific information if need be because its just a generic mouse device and report descriptors are provided at usb.org for them. I know what the input report is going to contain i just need to send it as if it comes from a specificmouse device.
