Pasting A Bitmap Data On Clipboard From Screen Capture
Nov 29, 2011
There is Bitmap data on the clipboard from a screen capture. If I paste it into a RichTextBox it works OK. That is, if I remove the first two lines below.
Dim clipboardDataO As DataObject = CType(Clipboard.GetDataObject(), DataObject)
Clipboard.SetDataObject(clipboardDataO)
RichTextBoxTxt.Paste(DataFormats.GetFormat(DataFormats.Bitmap))
However, If I capture the clipboard data and restore it before I paste I no longer get my bitmap displayed in the box. My problem is, in the real situation I need to use the clipboard before I paste which is why I save it and restore it above.
1) Do you know why restoring doesn't appear to work here?
2) I can't paste before the save/restore. Is there something else I can do?
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Jul 29, 2011
I'm trying to use an image as the fill in a series in a bubble graphic. I know we can set what's in the clipboard as the filling of a bubble, but when I try to record the macro nothing happens...
Can anyone tell me what's the code to put an image from the clipboard as the fill from the selected bubble series?
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Jul 19, 2009
I have a form to email every day that compiles from a VB script I wrote in MS Word 2003. Each day I have text that I need to place in the Introduction area in the email. I usually do this manually by copying the text then pasting it into the Introduction box since the text is usually just snippets of emails and have no common pattern. I would like to have a way to be able to select my text and copy to the clipboard, then run my script and have the contents of the clipboard pasted into the Introduction by the script so the email can then be sent.
Everything works perfectly if I place static text for the Introduction. I just need a way to be able to place the contents of the clipboard into the Introduction.
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Oct 2, 2009
pasting images onto a control and saving it as bitmap
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Feb 7, 2011
a user copies multiple lines of text (say, from an email) into the clipboard. Based on my observations, when one tries to paste the text into a single-line textbox, only the first line is actually pasted in. (I am aware that the "obvious" solution would be to set the Multiline property to True, but there are reasons I am looking to avoid this and to put multi-line data into a single line.)
In the TextChanged event handler, I wrote code that parses the clipboard data to successfully convert it to a single-line, comma-delimited format.
Private Sub txtMassTrackingNo_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles txtMassTrackingNo.TextChanged
[Code].....
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Dec 12, 2011
If I do the same thing in Paint it works OK. But if I open a .bmp file into Photoshop.Select All and Copy to put it on the clipboard. Then my code then reads the stream into a byte array and eventually makes a Bitmap from it.If I assign the bitmap to a background image it displays OK.But if I insert it into a RichTextBox using Khendys Gordon's method it does not display.However, I find if I clear the Clipboard before inserting it, it does display OK.I suspect the Bitmap is using the Clipboard for backing much like when and Image is created from a disk file.But it is confusing because I copy the stream into a byte array and make the Bitmap from the array. It would seem that once the values are copied into a new array the backing would not be in play any more.
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Mar 26, 2012
I am trying to capture when the user pastes some text from the windows clipboard. At the moment, I don't care about files or images. Here is the base code that I am using.
[Code]...
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Aug 20, 2010
I wanted to make a screen recorder (not screen capture) program, but I am not entirely sure how to get it started. I have seen many videos and things on how to make one, but all of these just take multiple pictures and then don't compile them into a movie file, and I don't want to take many pictures (unless that is the only way possible.) I am using Visual Basic 2010 Express and I have looked at the Windows Media Encoder, but I can't seem to figure out how to use/implement it (yes, I have downloaded and installed it.) Maybe I can use some kind of ActiveX control?
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Aug 6, 2009
I have a firewire and a camera. I can see the video as in a preview using tools like MS Movie maker.I want to write a simple program that allows a Preview and when a button is clicked, grabs the snapshot bmp,jpg.I have written a program that works with a webcam and a usb interface. It uses capCreateCaptureWindowA
But this technique displays a blank screen when trying to capture a WDM device. So i am back to square one. There must be a snippet of code out there somewhere to do this.
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Feb 13, 2010
I play a game and in the game you acquire skills which you can display on the screen in a box very similar to a data grid. The grid has 3 columns and X number of rows.Column 1 is the name of the skill, column 2 has a descriptive term like "Beginner" and column has the number of points you have acquired in that skill. So it would look something like this:[code]Remember that it is in a data grid so it has cells like an Excel spreed sheet.The program that I use is able to parse the skill name and the points and save that information outside the game to a n area in the program.My question is, is this possible to do something similar in VB? That is something like, Press a hot key, with will get a screen shot, parse the data and save to a data grid in my VB program.
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Mar 7, 2012
Edit: Fixed, I created a compatibleDC for the graphics object, and a handle for the bitmap (using b.gethbitmap), then used the SelectObject function inside GDI to select those two, and used the compatibleDC instead of hDc in the BitBlt function I've been trying to draw a bitmap to the screen (device 0), however I have encountered a problem copying the graphics using BitBlt.
Initially, I was drawing directly to the desktop using SetPixel (gdi32), but it was slow, so now I am setting the pixels of a bitmap object and then creating graphics from that object, and copying the hdc of the graphics to the screen.My guess is that I am adding the HDC of the graphics object to an intptr, which essentially gives me the HDC of the container of the graphics object, which is not what I need. However even so, I have not found any information on how I could copy a bitmap to a device other than using BitBlt.
This is my current code (Windows forms app, textbox, button) The textbox is the device to copy to, and the button starts it. For testing purposes, set the textbox text to 0, and press the button. You should see a black box (50x50px) in the top left corner of your screen. The colour should be blue if it is working correctly:
Public Class Form1
Declare Function GetDC Lib "user32.dll" (ByVal hwnd As Int32) As Int32
Declare Function ReleaseDC Lib "user32.dll" (ByVal hwnd As Int32, ByVal hdc As Int32) As Int32
[code]....
The way it works is it calls the function setpx, given a location and color from within a loop iterating through all of the pixels in a box (50x50 in my code). The setpx function will then call the setpixel fuction on a bitmap b. This part is working fine.Next, it will define a graphics object g from the bitmap, and I use BitBlt to copy g's hdc (g.gethdc) to the screen. This is not working correctly?
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Mar 2, 2009
I need to find a bitmap on the screen?
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Oct 13, 2010
When I first saw Silverlight, I thought that there was a How Do I: video that demonstrated how to capture the PC screen and save it in a WMV file. Since I can't find anything like that I'm wondering if I was dreaming or it has been removed from the Net. My goal is to create a video capture Class that I can use to demonstrate my program and add the feature in my program so the user can record any issues they are having with my program and send it to me. This way I can see what issues they are having with my program.
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Jan 4, 2011
I am trying to take a png file (around 2000 x 2400) and split it into 8 smaller images of 500 x 1250 each (2 rows of 4), each of which is saved as a png file. I then which to display these smaller png files in a picture box so that they look as if they were one image.
My problem is that when I display the png files in the picture box, lines that look like grid lines show up in the picture box at the points where the png files sit next to each other.
When I view the smaller png files in Paint it appears as if the left column (x=0)and top row (y=0) of each file is set to clear (or transparent). What shows up in the picture box is the background colour of the picture box.
This clear/transparent row and column are not added on to size of the smaller png files. They are still 500 x 1250.Not every file is affected. If the smaller files are created from the original bitmap in the following order[code]...
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Jan 14, 2010
I created a bitmap, that is supposed to be displayed on the screen, in the middle. It will have to be on top of EVERYTHING!! Even if a full screen application is running, I want it to show. My questions are: Is it possible to even display a CUSTOM MADE bitmap on the screen?
Option Strict Off
Imports System.Drawing.Drawing2D
Imports System.IO[code]....
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May 20, 2012
I'm looking to make a program that would capture your whole screen, then have the picture display on the screen (simulating a frozen screen) to where the person handling the program could select a partial segment of the screen with their mouse and then save to a folder.
1. I have no idea how to go by doing this
2. My form is constantly minimized, so I have to do it without MouseDown on the form and whatnot.
How would I go by doing this?
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Sep 1, 2009
I want to capture a video of my screen with vb .net, and i'd like to avoid using directx. I found a tutorial here url... but it resulted in the program instantly crashing, i think it was designed for .net 1.1;
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Aug 30, 2011
I know that a service in Win7 doesnt have a desktop associated to capture a screen - so normal techniques dont work.But how do i overcome this? How do programs like VNC and alikes do it? My code in WIN XP works fine - but in Win 7 i get black image.
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Dec 30, 2008
This code captures screen, but it doesn't capture my forms, only other applications in the background.[ode]...
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Feb 11, 2012
Is there a way to detect screen capture or recording is processing.
Atleast a way to know the process behind screen capturing?
i guess something has to be done with Kernal side of the system but not sure.
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Jun 7, 2011
Does anyone know What the best SDK for video capture is, WME Sdk?
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Mar 21, 2008
Hi how can I capture my screen as a video? Like record what I do with my mouse and so on until I want it to stop and have a File of it ready.?
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Jun 16, 2010
i need to make a screen capture... but just of a web browser control... i got everything but how to get JUST the web control..
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Jul 26, 2010
how would I allow my screen capture to crop and capture only a particular area of a screen?The user should be able to select the area they want to crop. It would be good if the cursor changers to a plus like other screen captures and also the screen is all paused so the user can select the area they want.v
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Apr 26, 2012
How can I capture a part of screen as video in VB.NET? Can I set the location of the screen capture and the width of the capture area?
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May 3, 2009
I have a application (client) that does a screen capture and sends it to another application (server) over tcp/ip.The problem is that sometimes the images recived on the server i corrupt, it only displays a part of the image, like there is data missing.I have tried to set the sendbuffer and recivebuffer to different values, some works better but not good enought.
[Code].....
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Feb 5, 2011
I'm trying to create a DLL with some useful methods and subs for my use. But when I tried declaring an object for Form or using the keyword Screen, Bitmap, etc.. gives an error saying that "The type 'Screen' is not defined" and like that..
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Apr 1, 2010
I found that code somewhere and I find it quite useful but I would like to find a way to make it work so it capture only the given window target. Maybe with a processID or Window Name. Even if that window is not active. I do not want to make that window active but want to get a screen capture like if I was doing Alt+PrintScreen on it.
[Code]....
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Mar 2, 2010
I was about to create a code for capturing screen of the area of a form.. Below code is capturing only the form size but from the top of the screen.. I want to capture the area of screen wherever it placed..
Code:
Dim loBmp As Bitmap = Nothing
'Dim Somebitmap As Bitmap
Dim screenSize As Size = New Size(Me.Bounds.Width, Me.Bounds.Height)
Dim screenGrab As New Bitmap(Me.Bounds.Width, Me.Bounds.Height)
Dim g As Graphics = Graphics.FromImage(screenGrab)
'Dim FiletoDelete
'MsgBox(lsFile)
g.CopyFromScreen(0, 0, 0, 0, screenSize) ("Need Some changes here!!")
screenGrab.Save(LogLib & lsFile)
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Jan 20, 2010
I'm trying to develop a windows form app which will take a screen shot every 30 seconds for about 45 minutes. After 45 minutes, the user will click Finish, and these screenshots will be uploaded to a database. I don't want anything that simulates a PrintScreen key press, because I don't want to alter the users clipboard. The second issue is, for users with multiple screens, I'd like to capture the entire screen image, not just from the primary screen. I'm using Visual Basic .NET 2005.
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