When i select an image randomly from an imagelist on my form and insert it into a picturebox, how can i stop that image from being selected again while the program is open ?
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I have a Class that has an Image as property. A (possibly very high) number of instances of this class are added to a List(Of thisClass).
In a For Each loop, a new ListViewItem is created for every instance of the class in that List. The Image property of the class should now be the Image of that ListViewItem.
Now, a ListViewItem does not take an Image directly. Instead, I need to assign an ImageList to the SmallImageList property of the ListView, with a specified Key, and assign an ImageKey property to the ListViewItem.
Of course, I could simply add the Image in the Image property of the class to the ImageList, generate a random Key string, and assign that string to the ImageKey property of the created ListViewItem.
That does work, and gives me the correct image for every ListViewItem. However, it is not a very good solution I think, because, in total, there might not be more than like 5 different images! But there may be a LOT of ListViewItems, so there are a lot of duplicate images.
To prevent storing the same image 9183 times in the ImageList, I thought I could generate a Key to use based on the image. If the same image is then encountered later in the loop, I can see that this Key is already in the ImageList, and I don't need to add it a second time. Because they Key is then equal to the 'old' image, already in the imagelist, it will automatically be used for this Listviewitem.
I thought I could use the GetHashCode property of the Image, but apparently not...
Here is my
[Code]....
I thought this would work, but apparently the GetHashCode function returns a different number, even for identical images. I know the images are identical because I tried this by specifying the SAME image object as the Image property of the class, a few times. The GetHashCode is different everytime.
So is there any other property I can use, that is unique for identical images, but different for different images? Or am I going about this completely the wrong way? Or shouldn't I worry that there can be up to 10.000 duplicate images in the Imagelist?
I have an image box full of images , im using a code to select a random image from the imagelist and display it in a picturebox.
My problem now is how can i check what image is in the picturebox and then have it do something else.
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I'm trying to get the image's name from a imagelist..[code]ofcourse that "name" doesn't exists, and I'm trying to find out what another correct way to get the name of that image.
View 1 RepliesI'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
View 2 RepliesDoes anyone know if it is possible to resize an imagelist/listview image without repopulating the image list? I am using scroll bar to change the image size from 25 point to 256 point. When I leave the scroll bar the imagelist repopulates from the files list. This can be very slow when working with high resolution pictures. I don't want to limit the image size to 2 sizes by using large and small imagelist.
View 1 RepliesI have my rpg, still, first time working on it n ages, and I want each user to be able to set their own personalized picture background for the game...
each character in the game has its own dedicated folder for each file that the character has relating to it...
what I want to know how to do, is to have my game copy the loaded/chosen background image to their respective characters data folder, and have the game reload/reset the games default background image, to the one piced by he player...I am having a hard time figuring out how to do this however...I've tried a lot of different things...and nothing is working yet...
here is my example code right now:
[Code].....
Execute the default image viewer when i pass the path of the image.
View 2 RepliesHow can i stop the same image from been selected twice from my image list
[code]...
Im using this so randomly select an image and place it into a picturebox (box_1)I have 22 boxes and 22 images , how do i stop an images appearing twice ?
how to get name of image from imagelist. I can't find any 'name' property in imagelist1.images.
View 4 RepliesI have got an imagelist with many images, many of which have a critical name which can be changed in the desinger, however, since Im NOT using this imagelist in another control (e.g. tabcontrol) I am not able to use imagekey. Therefore, how am I able to get the name of an image in my imagelist?
View 1 RepliesImagelist1.image.add("DSCF00082.jpg")
I tried using the above code to add an image to an IMAGELIST but it is to no success.
I want to know if there is a way to add an image to an image list via code as opposed to using the collection.
im trying to add new images to an image list everytime a function is called. Im unable to clear the image list so im trying to create a new one each time the function executes.
Sub getActors(ByVal directory)
'Get actors and there names
Dim di As New IO.DirectoryInfo(directory)
Dim aryFi As IO.FileInfo() = di.GetFiles("*.jpg")
[code]....
how to clear an imagelist or how to implement a new imagelist
I can not seem to figure out how to change the size of a photo being put into a picture box.I need the photos that are placed in the picture box to come in their original size....I have 4 different pictures in an ImageList and depending on what a Text box from a different form says, one of the photos will be displayed in a picturebox when the form is loaded. Right now all the images show up very blurry and in the predetermined size in the imagelist. Here is my code:[code...]
As you can see I figured out how to autosize the PictureBox (candypic) to the size of the image coming in....just cant get the image to come in as the right size.....
When I created the imagelist all the photos have a default size of 16, 16 when entered into the list.....I see in the imagelist properties how to adjust the image size but it groups them together as one.
I was searching MSDN for a function to grab an image from a website and add to my imagelist control. I could not find any thing on MSDN but did come across this.
image = ImageList.LoadImage(Filepath or URL of image)
http://social.msdn.microsoft.com/For...9-f63e40d2ccce
but there is no property in the imagelist control that does that.
am i missing something? if not what would you suggest best way to grab a url to use in my listview as an icon.
does anybody know how to put an image into a Byte array without specifying a format? I have a Listview with images downloaded from the internet and I want to save them all together to the hard drive as a single file, by using a structure. In order to do this I need to put the Imagelist images into a byte array. When the application starts I reload the images into the Imagelist again.
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I need to get the integer of an image which is located in an imagelist. Dim _blue As Integer = CInt(frm_main.Imagelist1.Images.Item(1)), but image can't be converted to integer.
View 1 Replieshow can i do it so the same image doesnt get repeated more then once. so when two of the same images are already picked, it goes on to select a different image until there are pairs of everything. This is my code
Quote:
Dim intPic As Integer
Dim rand As New Random
intPic = rand.Next(0, ImageList1.Images.Count)[code].....
I am trying to edit an image. I can open the image with Picturebox1.load(mypicture)
I can change the pixels/edit the picture by Dim img as new bitmap(picturebox1.image)
[Code]...
now here is the weird part. When I save the image the filesize INCREASES..but the picture dimensions are the same Example... TEST.PNG 1.3KB, when opened up via picturebox/saved the image is now 2.3KB
not sure why...i even though I specify system.drawing.imaging.imageformat.PNG
samething with JPG... it actually SHRINKS it evenmore.. example 88KB jpeg.. saved as jpeg is now 47.7KB...
How can I make a program that will open an image, put it in picturebox1, and save it resized?So far I have the open code
OpenFileDialog1.ShowDialog()
PictureBox1.ImageLocation = OpenFileDialog1.FileName
Me.Text = OpenFileDialog1.SafeFileName
PictureBox1.SizeMode = PictureBoxSizeMode.Zoom
I am using this code to create a list of open windows. How do I extract an icon from the open program so I can add it to an imagelist?[code]...
View 6 RepliesHow can I get image name of an image from ImageList?
View 3 RepliesI'm having a problem with some code which seems to stop my program from working correctly. Below is my (i have only added to code which i think you will only need to see.
Dim con As New OleDb.OleDbConnection
Dim dbprovider As String
Dim dbsource As String
[code]....
I've been looking for ways to convert a pdf to an image so i can display a preview of the file in my application. I google and find a bunch of api's you have to pay for, but I would like to know how to actually do this myself...
[Code]...
How can I stop text being selected when the mouse is dragged in my webbrowser?I have all the webbrowser mouse events sorted, I just don't know how to stop the selecting!Basically I need something which does: isselecting = False on the mousemove event. How!?
View 3 RepliesOut of curiosity, is there a way i can make a program stop or pause for a period of time (which i would choose) before continuing the code WITHOUT a timer.I think I've seen this done before, but I'm not positive.Also note that I'm talking about a forms application (not a console app if that would be any different.)
View 3 RepliesI am trying to make an application with a start button and a stop button on a stop watch program. These are the codes I am using but my seconds on the stop watch don't start.
Public Form Dim intSecond As Integer = 0
Form 1
Private
Dim intSecond As Integer = 0
intSecond +=1
[Code]...
After I write my code and try to run the program, the seconds will not start,
I want a code that will be usefull to make a program that opens the video camra of the PC and saves the camera sight (or images capture).
View 4 Repliesam trying to replace a image in a picturebox with a new image. I am getting the warning that the file is open (locked). It works a few times and it bomb's out with the warning. How can i unlock the file? I am disposing the current image and setting it to Nothing. [Code]
View 2 RepliesWhy these two different ways of assigning a background image work differently?
When I load the image into an ImageList, and then reference the ImagaList.Images collection to set the background Image for a control, it looks llike crap. The smooth blend I had set up is stratified.
When I load the image directly from the Resource, it looks great.
I assume this has something to do with the bit depth of the image once it is stored in the Image list collection? Or some other conversion issue. However, I can't find a way to adjust these properties on the image list (They are read only).
Here is the way that looks like crap:
code;
