I have a picturebox. I want to at certain points take a screenshot of whatever is in that picturebox and write it to a bitmap variable.The images in the box will be of varying sizes and i will be tracking the sizes using image.height and image.width. I would like to use those to define the area for my screenshot.
View 14 RepliesI'm trying to make a program that kinda works like Windows 7 when you put you're mouse over a program in the taskbar, and it pops up a small realtime screenshot of the running program while its minimized.Anyone know how I can go about doing this? I took a small code from the internet, but I always a error "Generic Error occurred in GDI+".[code]
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Finally "upgraded" to vbnet and got no idea how to do this! What I'm doing is using bitblt to take a screenshot of the desktop and put it in a picturebox. What I really need is just the raw data from the picture, not the picture showing on a picturebox.
Only problem is that it is not working at all!
Here is the entire sourcecode. How is it not working??
Module1
Module Module1
Public Declare Function GetDesktopWindow Lib "user32" () As Long
Public Declare Function BitBlt Lib "gdi32" (ByVal hDCDest As Long, _
[Code].....
I am making a program to automatically take and save screen shots and I am using the F12 button. It works fine, but the problem I have is when I press F12, it will take and input the picture into the PictureBox1, but if I try to clear it, and then do it a second time, it wont work a second time. My clear button code is:
Picturebox1.dispose()
here is some of the code that i have:
Public Function CaptureImage(ByVal X As Integer, ByVal Y As Integer, ByVal Width As Integer, ByVal Height As Integer) As Bitmap
Dim JPEG As New Bitmap(Width, Height)
Dim G As Graphics = Graphics.FromImage(JPEG)[code]....
when the timer hits a 2 second interval the picturebox on form 3 gets a new image from the screen shot that form 4 takes off of form4's area. i want the user to select a folder with the "folder browser dialog" and i want each frame capture to be saved to the folder (every 2 seconds) that the user chooses as "1.jpg, 2.jpg, 3.jpg" etc .
I'd like to be able to take a "Screenshot" of a specific control within my form (regardless of control type) and place that "Screenshot" inside a PictureBox.There's lots of info available for capturing a whole screenshot, but I am specifically after capturing an image from the bounds of a specific control on my form.here's what I've tried: I get no image in my Picturebox_myCam is a control on my form with the image I'd like to capturecamera1 is a PictureBox on my form that I'd like to place that image invb.net
Dim bmp As New Bitmap(_myCam.Width, _myCam.Height)
Dim gr As Graphics = Graphics.FromImage(bmp)
gr.DrawImage(bmp, New Rectangle(New Point(camera1.Left, camera1.Top), New Size(200, 150)),
[code].....
How can I only add the decimal part of a number to another one?
example: if a number is A = 10.25
Then X = 30
Y = X + 0.25 (Here it added 0.25 which the decimal only NOT 10.25)
Another example, If X = 16.35, A = 102.001
Y = 16.351
I was wondering what the easiest way is to get a portion of text from a string for example, you have:
"example1,example2,example3"
And i need to be able to get all three of the items separate:
"example1"
"example2"
"example3"
The length and number of items will change, I'm using a listview subitem
Lets say I have a variable: varEmail. It contains a variable equal to the user's email address, so it might contain a value likeNow, lets say I want to get just a portion of the email address, e.g. strip off the domain, like so:
View 5 RepliesI am trying to extract the first portion of a string up to the first SPACE or any non-numeric digit.I thought I could do it but the string may contain an alphabet in the front followed by varying digits of numerals, making it more complicated.Here are some examples of the string to be parsed and the expected results:
String[code].....
I would have to use a series of instr statements but the code would be much cleaner using RegEx.
I'm trying to look in the program files for a directory(the gimp directory). I could hard code it but they change the file name and the exe name with the versions. So I only know that the folder contains the word gimp. How do I search for it only knowing a portion of the file name.
My.Computer.FileSystem.FindInFiles(Environment.SpecialFolder.ProgramFilesX86, "gimp", True, FileIO.SearchOption.SearchTopLevelOnly)
This is the code that I've tried but it just doesn't work.
I have a drawing image, Dim DrawingImage as Image = My.Resources.Img, which will be drawn on my form. The DrawingImage is supposed to be 64x64, but the Img.png is 114x114. How can I get this DrawingImage to stretch so that there is no cut off portion?
P.S. Is there a way to BringToFront this DrawingImage?
I need to retrieve a portion of xml into a datatable
<Product>
-<productID>123</productID>
-<productName>123</productName>[code]......
Now Under product tag there are ProductID, ProductName and ProductFeatures.Under ProductFeatures tag there are three "productfeaturetext" tags.I only need to extract "Features" tag into a datatable to loop it, how this can be done ?
What I would like to do is to be able to save a portion of the screen, from Start_X, Start_Y to End_X, End_Y, and then use it as a resource as follows:
DrawImage(SavedImage, New Rectangle(Start_X, Start_Y, End_X, End_Y))
How do i access another user's registry portion in win XP?how do i access another user's HKey_current_user on my machine, in vb2005 or if someone can recommend a software that can already do it.Im trying to make a quick registry repair tool to fix a damaged or corrupted user
View 2 RepliesI have a combobox which is filled with items from a table like this: [Code] What Im trying to do is to when I choose one name from the dropdown list the firstname shall go to one textbox1 and lastname go to textbox2. One way doing this may be to use the ID column wich is the the Primary Key. And do a new search in a button with that ID which fills the textboxes. But how can I get just a portion of the selected string in the combobox to a string so I can do a search on it.
View 5 RepliesI have a sql table with the following fields
ID = PrimaryKey (nvarchar(50))
Name Surname
sample value of ID = RHO-1 How do i automatically increment the numeric portion when adding a new record to the database eg: RHO-2, RHO-3 and so on.
I have a third party GIS tool that I'm using to view maps with. Occasionally we have to take a snapshot of a portion of the map and dump it to a bitmap. The third party tool has a function that will give me the upper left and lower right coordinates of the area selected on the map. These coordinates come out as system.drawing.point objects.
The two point objects are then used to generate a new system.drawing.size object that will give the height and width of the area selected. The height and width values are passed to the constructor for the system.drawing.bitmap.All this works fine most of the time. Sometimes, however, when the user selects a particularly large area, the bitmap constructor bombs with a 'parameter is not valid' error. There isn't any documentation on this error, but I'm assuming it means the height and width are too big.
So what I'm wondering is... is there some way to check my height and width values prior to creating the bitmap and make sure they are in acceptable bounds?
Assume I have a form that has say 5 text boxes and I need to pull some data from a database then set those 5 text boxes with that data.So assume I have 3 basic layers: the code behind for a default.aspx page a BLL class that contacts the DAL and a data access layer (DAL)But I've heard and read that the default.aspx page should not know about sqldatareader, in fact you probably dont want to add the sqlclient namesspace to the default.aspx code behind page. [code] Then the BLL would simply call the DAL to call a stored procedure in SQL Server and do a CommandObject.ExecuteReader, get the results pass it back to BLL and BLL would then send it to the code behind page of default.aspx.I can provide full source code if that doesn't make sense. My question is if its bad that default.aspx actually declares and knows about an SQL Data Reader then what is the better way to do this? What datatype should I be using to avoid having an sqldatareader in my interface code ?
View 2 RepliesI have a userform in 2008 vb express edition. A part number is created from user input via a concat string. I want to then check if a certain portion of the part number exists in the existing file names in a directory. Below is a more detailed explanation.[code]...
View 2 RepliesI need a Data ComboBox having GridView in it's List Portion to have multiple columns in it. Purpose is Consider a 'Products Combo Box' where i want following fields to display
1] Product Icon
2] Product Name/Description
3] Product Price
4] Product Stock In Hand
where i can Format the 'Price' field to say Currency Type, 'Stock In Hand' field set to Particular ForeColors (at Run Time) depends on wheather the current stock is Negative or below minimum range or adiquate stock and so on. Similar controls are already available with MS Access so Why Not In VB?
I know there's way to display portion of image from the original image size, however I still unable to do it successfully. Is there any good examples for me to refer?
View 3 RepliesI have a list box with information that needs to be displayed in a text box. Each of the lines in the list box has 2 types of information-Name and setup data. When I click on the line I need only the setup data to be displayed in a text box. This data on all lines begins at the 42 column. I can display the information using SelectedIndexChanged but the entire line is displayed. In other words I need to display only the data from the 42 column to the end of the selected line.
View 2 Replies[URL] how to enable highlighted portion in visual studio
View 8 RepliesWas trying to make a little project which will login to a site. The problem i am facing is with the captcha code display..
Was searching around to get the captcha to the form directly but didn't found anything useful.
So my question is how to display only the area of the captcha on the form instead of the complete form.
Like suppose I want to display only the portion where the logo of Visual Basic .NET Forums - The Exclusive VB.NET Community is located instead of complete webpage.
Application using : VS 2008
Answer expected for : VB 2008 or C#
If I were to draw a rectangle with e.Graphics.FillRectangle(), how would I make a circular portion of the rectangle transparent?
View 1 RepliesIn VB6.0, you could create a sub that took an array byref, and then call it with an argument that was an indexed element of the array, and it would treat that index as the starting point. This was very useful, for example, if you were trying to create a binary string to send over a communication port.The same thing doesn't work in VS 2008,Let us say for example I have the following Sub:
Public Sub HexToAddr(ByRef addr() As Byte, ByVal addrstr As String)
Dim i As Integer
For i = 0 To 7[code]....
Is there some tricky way to make this work, or do I really have to either (a) create a completely separate array of bytes, call the function, and then copy the data, or (b) create a completely separate version of HexToAddr which takes an "offset" argument for the destination array?
Basically I'm making my own progress bar. i'd like to create a function like
Pseudo
Private Sub ColorProgressBar(ByVal Percentage As Double)
paint picture content of picProgressBkg to picProgress
starting at 0 left and Percentage wide,
paint picture content of picProgressFore to picProgress
End Sub
I used to do this with bitblt in vb6 but I have a feeling there are new methods now.I'm new to vb.net and know nothing about its graphics stuff, so if someone could explain them to me along the way, that would be fantastic
I am trying to use a date time picker to get a month and year from the user (no date). I have the text box portion of the control set correctly but I was wondering if there is a way for me to edit the calendar control so that it only allows selection of months and years or if I can remove that calendar control all together? I have searched for a while but found nothing addressing my question, everything I found refers to the text box portion of the control.
View 1 RepliesWhat is the standard / best practices way to achieve the effect of text formatting within a label in a standard .NET Windows Forms Application? For example, I want a label I would programmatically change. However, I might want a particular word in the label to be bold.
View 2 Replies