I have an app that needs to bulk rortate a folder of images either left or right using
rotate90flipnone or rotate270flipnone
The app does in fact rotate the images but when viewed as thumbnails in explorer they are not rotated. So my app needs to rotate the thumbnail as well.
What is the best way of quickly loading a datagridview with thumbnails of images and filenames/paths found within a particular folder using a backgroundworker without affecting UI performance ?
While loading, I'd like to continuously filter the dgv's image column through a textbox to display results as the user is typing.
I am working on a desktop application in VB.Net (4.0) There will a lot of SQL scripts which contains a lot of insert queries Currenlty we are running the scripts using SMO (http://msdn.microsoft.com/en-us/library/ms162557.aspx)For performance, we have planned to change the sql scripts to xml file ( instead of insert queries, it will have xml data with a proper xsd defined )Loads xml to dataSet and Using SQL Bulk Copy we are trying to insert to SQL Server.
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When I load images using openfiledialog I need to store a backup copy of the images to the other folder using the same filename and with the same extension.So how do i do that as in the below mentioned code I am able to copy only one image and I have given random string for that image.But I don't need that.I want to copy with the same filename and with the same extension.And if I have the same filename it should overwrite it but not with a different name and extension.[code]
View 3 RepliesI want to simulate a rotating wheel (animation 2D) in vb 2008. the purpose is that when I click a button, the wheel will start rotating.Can I use .jpg image for this and rotate it? or I just need to draw using graphics?
View 7 Repliesi want to work on a shooting game,and i already have a code for the rotation of the image but i have a few problemFirst problem(for the tank /ship): i want the image to AUTOMATICALLY rotate facing the mouse cursor,i know how to rotate but but i dont know how to convert the location of the mouse to an angle that the image will face,,
View 1 RepliesI'm trying to rotate a image/bitmap, i have a code to draw a image wit a rotation but only on a graphic, show do i make it into a image/bitmap?
Dim g = Me.CreateGraphics
g.Clear(Color.White)
Dim bmp As New Bitmap(My.Resources.RedStone_Line)
RedStone.DrawRotateImage(g, bmp, 32, 0, 90)
bmp.Dispose()
g.Dispose()
bmp = New Bitmap(32, 32, g) 'This is giving me an error
how to rotate an image inside a picture box. Saw many for VB6 etc, but when tried it in vb 2008 nothing worked and got lots of weird errors.My project is to read a compass (electronic) send to the PC then create a nice compass image to rotate accordingly. All the rest of my stuff works, GPS reading and parsing etc..But cannot for the life of me, get that image to rotate.
View 17 RepliesHow can i rotate a image in VB 2008.
View 1 Replieshow to rotate image like 3d rotation?
View 2 RepliesI want to rotate an image by x number of degrees.
View 1 RepliesI can get the image to rotate the problem is that on every step throught the loop the image goes to it inverse or draw backwards.
Code:
Public Class Form1
Public K As New Grid_Tiles
Public D As Integer
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I have an application that downloads a .jpg snapshot from an IP camera, writes it to the server hard drive, attaches it to an email and sends it out to my users. Pretty simple until one guy had to mount his camera upside down and that's how he received the image via email.
It gets a bit annoying after a while, so he asked me if I could rotate it 180 degrees before attaching it to the email. I have absolutely no idea - hence my post. The app is on a hosted ASP.Net v3.5 web server.
I wish to import an image such as a wheel and rotate it about a pivot point continuously once a button as been activated. Would some kind person wish to share a code snippet in order for this to be achieved?
View 5 RepliesI am Trying to develop an optical character recognition system. I have a problem regarding the scanned data. Whenever i can a document the scanned image seems to be a little slanted/rotated. I am not able to figure out a way to rotate the image/scanned document.
View 3 RepliesI have made a program that has an image moving across the screen. The image changes its movement direction when the arrows are pressed. Now, I am trying to rotate the image (an arrow) to match the direction. Here is the subroutine to rotate the image. It uses the hidden PictureBox2's image (the original right arrow) as the source, because I couldn't think of any other way.
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how to rotate an image in a picturebox on a button click. I am not getting any rotation in the picturebox properties.
View 5 RepliesThere are some fundemental concepts I am missing about graphics in VB.NET.
I have a control with an image that I want to rotate 15 degrees.
How do you get the contents of a graphic object into a image object?[code]....
Im looking for an image viewer that supports most types of image formats, including PDFs, and has the ability to rotate/zoom, and draw on an image. I've been looking but to no avail. Does anyone have any suggestions on the best way of going about modifying a control so that I would have these features? The main problem that I am running into is the lack of the ability to draw on an image. Im still sort of a newbie to .NET,
View 2 RepliesHow do I rotate a bitmap image that has been placed in a picturebox? I need to make it appear upside down or rotated according to user input. I can't find anything in the properties to do this
View 2 RepliesIn a game i am making, as the mouse cursor i have crosshairs (like those in FPS games) and i would like an image box to change images as the mouse moves so that it appears that the character in the picturebox is following the mouse cursor.
i thought i would do something along the lines of first finding out which side of the picture box its on (left or right) then finding out exactly where with some maths equations and then assigning 1 of 60 pictures so that it appears that the picture is rotating.
I have 8 thumbnails on a thumbnail browser page where each thumbnail is just a rectangle from the main image, not the whole thing.
Problem is, this needs to run on some fairly old machines where it's too slow in VB.net although the old VB6 version worked fine. Any obvious ways of speeding the following code up, or do I need to go back to API or use separate thumbnail images?
Private bmp As Bitmap
Private bmp2 As Bitmap
Private gr As Graphics
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I'm working at a new explorer with checkboxes in VB 2005. It's about to be finished.i have pb to get thumbnails in my listview. Usually, com interface used to get thumbnails is IShellItemImageFactory. I had no pb with this one. But i would use IThumbnailCache because i can hold an ID on thumbnails to register them in a ImageList. I wrote IThumbnailCache as follows:
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I figured out how to show multiple thumbnail at once with OpenFileDialog and FlowPanelLayout but I want to do it with FolderBrowseDialog - when I select one folder to it show me thumbnails of all images in it.
I'm using this code:
Dim OpenFileDialog1 As New OpenFileDialog
OpenFileDialog1.Filter = "Images (*.BMP;*.JPG;*.GIF,*.PNG,*.TIFF)|*.BMP;*.JPG;*.GIF;*.PNG;*.TIFF| All files (*.*)|*.*"
OpenFileDialog1.Multiselect = True
OpenFileDialog1.Title = "Select Photos"
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I have a media gallery type project I'm working on, but I want to enhance it by creating animated thumbnails to "preview" the media. I have already created code to extract 10 incremented images from a pretty much any video format. Now that I have my images, I thought the most efficient way to animate them would be through a GIF. Once you have imported media to a library it will automatically generate the images, and hopefully create the gif thumbnail I'm looking for. How to generate animated GIFs in vb2010?
View 1 RepliesThe fastest way to generate thumbnails using VB.net and multiple computers without bogging down the UI. Right now I have 3 computers and I run an instance of my thumbnail generator code on each. One computer hosts the images. The other two computers access the folder of images via the network. My code is written to compare the main folder and a thumbnail folder to see if new thumbnails need to be generated. If so, a thread is generated and the thumbnail generation code is ran on the thread. There are 5 threads created in all. So, theoretically, across 3 machines, I'm getting 5 independent threads and I'm thinking that Windows 7 automatically spreads the load across the local cores. In an effort to avoid duplicating work, the comparison is done before the generation of each thumbnail.
This method is faster than using only one computer but drags down the performance on all computers (THE UI also becomes unresponsive). I'm looking for a better way to
1.) Produce the thumbnails as fast as possible
2.) Keep all UI's responsive (boy possibly controlling the priority setting) and
3.) Done within a single instance of the program.
In the #3, I mentioned that I would like to use one instance. Is it possible for networking information be used by the hosting computer that will allow threads to run on the other 2 computers? This way, the 15 threads will be controlled by a single host computer.
Here is a snippet of my
Public Sub CreateThumbsFUNCTION(ByVal IMAGE As String, ByVal MAXDIMENSION As Integer)
'following code resizes picture to fit.
'IMAGE needs the full path
'If thumbnail already exists, it will skip
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I am trying to create a photo kiosk software where the user loads images, then they are displayed as thumbnails, and then the user can select a thumbnail (or multiple thumbnails) to choose sizes. (imagine a photo kiosk you would see in walmart for example)
So far I have done the following. I am able to load images. I then dynamically create a panel box for each image, and within the panel box I create a picture box and a label to display the thumbnails and the actual file name.
i want to make a Thumbnails Maker, that makes 20 picture of a video and then a file save dialog will appear when its dune. this is my design i have right now
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I have a program with three tabs. On tab one I use a folder browser dialogue and load file names into a listbox. These are usually ".tif" image files but could be other image formats. I save the folder location in a variable. On tab 2 I have a Flow Layout Panel. I need to 1) use that folder location on tab 1 as the source of files to be loaded into the flow layout panel and have it do so when I use the Folder Browser Dialogue; 2) I need to click on these tab2 images (in the Flow Layout Panel) to select them, and to trigger events. Mainly create a list of selected image thumbnails.
View 3 RepliesDocument Thumbnails in Navigation Window not working on Print Layout, it only works on Outline and Draft view. It does not allow me to checkmark when in print layout.
View 1 Replies