Forms :: Controlling Microsoft LifeCam Cinema WEBCAM Using .NET (ZOOM Feature)?
May 23, 2011
I have a Microsoft LifeCam Cinema Webcam. I have written a simple application thats STARTS the video capture, STOPS the video capture, captures a STILL image and CLEARS the still image on one form using TWO picture boxes....one to hold the STILL image and the other to show the VIDEO from the Webcam.I am using the VFW(Video for Windows) API to interface to the Webcam and everything in the application is working as intended with NO PROBLEMS. I use No DirectX, No ActiveX/COM, No Intermediary file, just live video stream.I do however wish to control the ZOOM feature of the camera using the VFW API.(increase and decrease)
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Sep 2, 2010
I have a Microsoft LifeCam Cinema Webcam. I have written a simple application thats STARTS the video capture, STOPS the video capture, captures a STILL image and CLEARS the still image on one form using TWO picture boxes....one to hold the STILL image and the other to show the VIDEO from the Webcam.
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Apr 26, 2012
I would like to be able to control the exposure level on a Microsoft Lifecam Studio webcam. The webcam will be taking pictures of lit LEDs. There is a neutral density filter between the webcam and LED to prevent blooming from the really bright LEDs. There is one person who states he is able to control the features of the camera using the native DLLs:
These DLLs are installed by the Microsoft lifecam desktop software, where you can manually control the exposure, white balance, brightness, etc. I have not been able to get is software to work. When I put in the line. Dim x As New Microsoft.LifeCam.CameraList. I get a Microsoft.LifeCam.CameraList is not defined error message. Are there any ideas how I can control the exposure level of the webcam through my VB program?
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Jan 23, 2011
how to make webcam zoom menu in vb.net
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Jan 17, 2010
I've created a paint application, and now I want to implement zooming of the picturebox where everything is drawn.
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Dec 11, 2009
at work here we use a Remote Machine Viewer called FitNet which is proprietary to NCR and WalMart. However, I had no hand in developing this application and the developers no longer are emplyed here or did they assign anyone to take it over. I was asked to take a look at it and see if I could come up with something. The application is a .NET app but when I use .NET Reflector to get an idea aboutthe code it says no CLI header found.
[Code]...
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Jun 12, 2009
I Am Making a WebBrowser and i want to make the zoom feature like Famouse WebBrowser Like Internet Explorer
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May 13, 2012
I am unable to access the TableLayoutPanel feature inside the toolbox in Microsoft Visual Basic Express 2010, I was wondering if this is a feature that is excluded from this package or is it something that I need to download.
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Dec 22, 2010
We've been asked to make a program based on a spec where we enter some details and it will then output a graph.Part of the assignment asks us to set up a timer so that the bar chart will display each bar seperately with a time delay between each one.However the timer is assigned to a form (Form2) while the draw commands are within another class called Expenditure.
While the specification doesn't specifically say we should stop the timer from within the class it is implied.Now I have tried Form2.Timer1.Stop() and Form2.Timer1.Enabled = False within the class without any luck.I'm wondering is it possible for the Expenditure class to stop the timer or does it need to be done within Form2?
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Oct 28, 2009
I am playing with VB 2008 using .Net 2.0 as the target to compile to and am trying to figure out if it is possible to create multiple countdown timers one in each form using a single timer.I have attemtped but the logic escapes me. If this is not possible I know how to use a timer on one form for that form.
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Aug 26, 2010
I program for wm 2003 -pocket pc. in vbnet 2005. I have a picturebox which I load images into it with buttons click. I have another 2 buttons called zoom in and zoom out, what should I do with this buttons that it will function as zoom in and zoom out.
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Oct 24, 2010
how to have only one child form open at a time. I'm trying to close the open one from a second button on the parent form. or maybe there is some way to use the same button to close the first form and open the second.
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Jan 16, 2012
I'm working on an application where I'm using an webcam image. I have code that works when using the built in iSight (It's an Apple running boot camp windows 7) camera. However after installing a second USB powered Microsoft Life Cam I am unable to connect to this second camera. When runnign this code I only ever get one input device:
Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
[Code].....
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Jun 23, 2011
I am working on watermarking image.
In the below code I load the image to the graphics path using resource image and adding text on it. When I add the image through open file dialog it paints on the form with original size but I need to resize it, add it to the PictureBox, add text to it and give zoom and pan options to it and then I need to save with the original size.
When I resize and when save the image I endi up with a small image.
Here is my code:
Imports System.Collections.ObjectModel
Imports System.Drawing.Drawing2D
Public Class Form1
[Code]....
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Apr 9, 2011
I have VS 2008 and am working in VB.Net forms.I have a webbrowser control where I am trying to control input fields that are dynamically created. If a text field has proper handles such as id and name tags there aren't any problems.
For example, I am trying to work with twitter for posts. I know twitter has an API but I want to work with many similar systems and want to avoid the API as its case specific and I want to scale things within the VB.Net form. The login fields for twitter are easily handled, however the posting field once your logged in is just a text area with a class. There is a tagname but I have been unable to post using the tagname element.Any examples of posting to twitter without the API ?
web1.Document.GetElementById ... ?
web1.Document.GetElementsByTagName ... ?
I've done extensive searching but can find nothing to make it happen. DOM inspectors havn't revealed much about the field.
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Dec 19, 2009
I'm trying to create a homepage feature for my program and cant seem to get it to check is its Empty or only contains spaces etc.
[Code]...
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Jul 29, 2010
Dows anyone know how I can build a timeout feature into a windows forms app.
The app is event driven, but I am thinking of somehow using a timer which counts down for say 10minutes, and one the timer ticks then we time out the user.
The problem I have is how can I reset the timer each time the mouse is moved or clicked.
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Apr 4, 2009
How can I zoom in/zoom out screen display? This is to be used for people having eyesight problem. I want to control the screen resolution by percent and not to any fixed size provided in control panel/display settings.I have to control the output of the main display and zoom in/zoom out by percent, according to user's eyesight matching
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Aug 26, 2008
Is there a way to zoom in and zoom out document in webbrowser?
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Mar 28, 2011
Here's the situation: I've got a form that has
- RichTextBox
- OpenButton (to load RTF file)
- SaveButton (to save RTF file after editing)
- Textbox (for search phrase)
- SearchButton
- ExitButton
- 2 RadioButtons (WholeWord and MatchCase search)
All of them are working just the way I want them to except search features; I don't know how to write them properly. At the moment, they search and highlight only the first word they encounter. E.g. say I search for word "the" in the document, only the first "the" it encounters is highlighted. The rest is just untouched.
I understand this is because I've only got few lines of simple code as follows
If rtfText.Find(txtSearch.Text, RichTextBoxFinds.WholeWord) = -1 Then
MessageBox.Show("No results returned. Please try again.", "No matching results.", MessageBoxButtons.OK, MessageBoxIcon.Information)
End If
I did try a few other snippets I found on the Internet including While loop but they didn't work as I wanted them to, and I couldn't understand them either. What I want is, which ever search option is used, when the matching result is found; it will highlight that word and when I click it again it will move onto another word. If I keep clicking, it will highlight the same words (but located in different areas) throughout the whole document and at the end, it will send back to the first matching word. Just like Adobe Reader search.
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Nov 15, 2010
I am trying to add two features to my webbrowser: View Source and Find. Does anyone know how to get the webpages source code and a method to perform a search in the webpage? I was thinking one might lead to the other.
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Sep 17, 2010
I have a program that is reading an Excel (xlsx) file and I am trying to take the data found in one of the cells and split it based upon the '@' symbol inside that cell. Here's an example: value in cell is "XXX @ YYY" I declare 3 strings (strOriginal, strA, strH) strOriginal is the value from the cell ("XXX @ YYY") then my code is supposed to split up the values in the Original string based upon that '@' symbol.So when my code is done, strA should = 'XXX' and strH should = 'YYY'.
Here is my code
strOriginal = dtbExcelData.Rows(0).Item(0).ToString
y = strOriginal.IndexOf("@")
strA = strOriginal.Substring(0, y - 1)
[code]....
For some unknown reason, the y integer (in this case, it is '4') changes to a random number (it has changed to 44, 61, 124) and causes the error "Error with Excel file: Index and length must refer to a location within the string. Parameter name: length" to occur.I understand why the error occurs (my y integer is not staying at 4)...I just don't understand why that y integer is changing numbers when it should remain as the indexof the '@' symbol. I'm looking for any suggestions on how to pull out the data after the space after the '@' symbol (the 'YYY' portion of 'XXX @ YYY'). Also sometimes the 'YYY' is only 'YY' as well.
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Mar 19, 2012
im new to this site and also a beginner on visual basic During form load, the number items required in the Adult ticket and Child ticket CBO's must be populated with code using a single For Loop.The Items Collection in Design mode must not be used to populate these CBO's1. Movie ticket prices, taxes, and fees are as follows:a. Adult Matinee - $9.25
[Code]...
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Oct 30, 2009
I created a Zoom in and Zoom out function for my application and it works great. I would just like your opion on my code, because I am wondering if it can be done a bit neater and more effective.
ts = ToolStrip
cms = ContextMenuStrip
vb.net
If Me.Font.Size < 30 Then
[Code]...
Me.form.font changes the font of all the controls except toolstrips, contextmenu's and menustrips.
Any idea's if this can be done any neater or how you can make menustrip etc.. use the font of the form?
Edit:This is the Zoom In version btw. The Zoom out is identical except it uses - instead of + when declaring the newFontSize.
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Mar 28, 2012
I have a logitech webcam that I use to take pictures of customers to submit to a server/database. Utilizing AVICAP32.DLL calls, I was able to modify my VB.NET program to take these pictures via a button in my program.
My question is, it would me more convenient to my intended users to click the webcam button, instead of clicking on the button in my program.
Is this possible to do in VB.NET? and how can I do this?
If this is not possible to do with my logitech webcam than is there a Microsoft Webcam that can do this?
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Jan 3, 2012
Im making a Cinema Script Editor in VB.net. I import some columns from excel to a database, and put this data into a datagridview to edit it. i have 2 columns in the grid, with multiline like this:
Me.DataGridView1.AutoSizeRowsMode = DataGridViewAutoSizeRowsMode.AllCells
Me.DataGridView1.DefaultCellStyle.WrapMode = DataGridViewTriState.True
I need to navigate in the grid like if i were in Word, i mean, pressing the up or down arrow the cursor should move first in the lines of a cell, and when it reaches the cell end, it has to go to the next cell in the column. But now, if i press up or down arrow, it moves from cell to cell...
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Jul 22, 2010
Ok major problem with a paint program i am making. When i have a window overlap or anything and move to side of screen and minimize and maximize i lose whats in the picturebox...Here is an example of the code I use to draw a line after click a button:
Private Sub btndraw_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnlinedraw.Click
lxs = txtslinelocationx.Text
lxe = txtelinelocationx.Text[code].....
Here is a picture of my program running: How do I stop everything being deleted when things pass it...? how can i add a save feature to this program?
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Oct 13, 2010
vb.net how to add functionality of zoom in and zoom out
in AxWebBrowser in vb.net using buttons .
I am able to do it using ctrl + mousewheel but how to do it programatically.....
If I open an excel file in the axwebbrowser then this functionality will work or not ..
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Jul 19, 2011
how to zoom in and zoom out a richtextbox in vb.net.
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Apr 7, 2011
i have map of a State, i need to let the user to Zoom in amd Zoom out and show some buttons on the Picture if we zoomin or zoomout the buttons also will be moved according to the location like google map how to achive this?
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