Create A Nonexistent Imaging.PropertyItem In An Image?
Nov 4, 2011I have an image (Image1) and want to create a property item in it that doesn't yet exist. [code]...
View 1 RepliesI have an image (Image1) and want to create a property item in it that doesn't yet exist. [code]...
View 1 RepliesHow to use the Image.PropertyItem class? I am loading an image from a path an "Image" variable and trying to get it's properties, and displaying a certain property in a messagebox.
MsgBox(Image1.GetPropertyItem())
that's as much as i can figure out. The tags i can find for arguments for the GetPropertyItem are things like 0x5090 when an integer is required.
I'm using the ExifTools code to read and update the EXIF for JPEGs in a VB.NET project I am developing. So far I've been successful with doing what I need to but I'm having difficulty with the last thing on my wishlist- the "Keywords" or "Tags" entry. The "Tags" property (as accessed by file right-click->properties->Details and just below the rating stars) is populated with information but if I use the PropertyItem for Keywords (Value 40094) with the ExifTools GetPropertyValue() function, it returns nothing.
It's pretty obvious that the "Tags" entry under file properties is not the same thing as what EXIF defines as "Keywords" but I have not been able to figure out what the correct PropertyItem value to pass is.
I'm making a program to detect polygon intersections, and it's all set up. I just need to know... how do you determine whether a region is of size zero?
View 2 RepliesIn RowCreated of the GridView i add following script to select a row:
Select Case e.Row.RowType
Case DataControlRowType.DataRow
e.Row.Attributes("onclick") = Me.Page.ClientScript.GetPostBackClientHyperlink(Me.MainGrid, "Select$" & e.Row.RowIndex)
End Select
This works like a charm(i thought).But when i debug the SelectedIndexChanging and the following SelectedIndexChanged events, i observe that the RowState of the selected Row switches from normal{0}/alternate{1} to 3 instead of selected{2}. This occurs between SelectedIndexChanging and SelectedIndexChanged. Why does this happen? The next time i programmatically set the selectedIndex(f.e. after a new row was created), i have two rows that are selected and no (un-hacky) way to deselect the old in RowDataBound, because of the invalid RowState of 3(should only be 0,1,2,4 or 8).
I have some VB.NET (which I don't normally deal with) code which must be converted to C# (which I normally do).The code happens to be in a Windows Forms app. I notice a couple of places such as:
Public Sub New()
ParentWindow = Me
where there is no ParentWindow variable defined, and it doesn't seem to be inherited here:
Public Class MainWindow
Inherits System.Windows.Forms.Form
Private Shared parentWindow As MainWindow
'....
(Though note that there is a similar variable with a lower-case first letter.)
and this:
DocumentCount = 0;
where, again, there is no corresponding variable definition and a straight conversion to C# Windows Forms indicates that there is no such member in the parent class.Am I missing an import somewhere, or is this a feature peculiar to VB.NET that doesn't translate directly to C#?
I'm getting a message when I try to import this namespace that "Namespace or type specified in the Imports System.Windows.Media.Imaging doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined etc..."
View 7 Replies"Cannot create ActiveX component" When I run this simple vbscript I get no errors:
Dim doc
set doc = CreateObject("MODI.Document")
msgbox "Task completed."
But when I translate it to vb.Net I get the error above:
Dim doc As Object = CreateObject("MODI.Document")
[Code]...
I tried unregistering the DLL (I know it unregistered because the script stopped working) and then I reregistered it again (whence the script started working again), but I still get the error in VB.Net.
I have a .net application running on a symbol mc75 (motorola) using the scanner. I am now trying to add functionality for the camera and I am running into issues.
To find the 'devices' you are supposed to use the library's 'available devices' function.
With the barcode it is symbol.barcode.devices.availabledevices and it returns two items (you can scan from the scanner or using the camera device) However, when I do the camera library it does not find any devices - symbol.imaging.devices.availabledevices returns 0
I can take a picture using the software on the mc75, so I know the functionality is there, I just can't figure out how to get to it programmatically..
Exists a good tutorial or example that shows how to use these classes from namespace System.Drawing.Imaging.
My idea is, to produce Bitmaps and to compress them. I don't know if for my case IO Streaming is important because I don't want to save the bitmap on my hard disk.
I have spent the best part of a day to try and get metadata out of a jpg.
Function getmetadata(ByVal f As String) As String
Dim txt As String
Dim fs As New System.IO.FileStream(f, FileMode.Open, FileAccess.Read, FileShare.Read)
[Code]....
create ISO image in Vb.net. How I am starting Code and Which Module I use in Vb.net Environment?
View 1 RepliesI've got some code from the internet to create a image with some text on it. I'm a newbie with this. I wil not have one color as background but a image ("bg.jpg"). I want this because im try to create a captcha.
[Code]...
I would like to assignload a file to "Public jChart As Image" and use it through the module.
View 1 RepliesIs there a fast way to create a tiled image? What I mean is there some 'magic' method that does it or should I manually calculate rectangles and call the DrawImage method the necessary number of times?
P.S. No, I can't use the ImageLayout.Tile itself because I'm overriding this property in a usercontrol.
I am programming a design surface where I add Image objects to the surface when an image is added it calls the draw objects command. It works fine I would like to figure out how to covert the object to an image to save it? Below is the draw sub used to draw objects onto the surface:
Public Sub DrawObjects(ByVal g As Graphics, ByVal Scale As Single)
Dim drawObj As GraphicObject
Dim i As Integer
[code]....
Is this possible? For example, if I did like[code]...
View 3 RepliesWe want to create a letter in GIF format with below attributes of GIf file.
Non-Interlaced GIF (CompuServe) 89a
2 colors (1-bit)
Horizontal Resolution 96 dpi
[code].....
If I have two images, how can i attach the other image to the other creating one image? Basically copy one image, paste it to another and save that image.
View 1 RepliesI'm using this snippet to create a blank image in a picturebox, but is it possible to have the image coloured so that I can see it. (I'll need to colour it later anyway).
.Image = New Bitmap(newPictureBox.Width, newPictureBox.Height) 'blank image.
Also if it is possible, I intend to draw lines, rectangles on the image (hopefully) and save the lot, so would I lose the colour, or would it get saved, or does it depend on what it gets saved as?
i would like to create a fixed size frame for user photos uploaded.
I've tought: i, can create a fixed sized image (200 width x 600 height for example), with my personal frame (top, left, bottom, right element graphics) , and in the center a transparency.
Ok, but i don't know how to merge the photo into the frame and save the new photo format.
Can I create an image editor similar to Windows Paint with Visual Basic.net 2005. I have tried to create one that can draw lines. But I feel little uncomfortable with my code.
View 4 RepliesIs there a way to create an image from a graphics object?
View 3 RepliesI am creating an application where when I click on an image I need to mark the place using the x and y co-ordinates given by the click and then after marking I put a red dot/circle on that spot and then I need to save this image to a file including the dot/circle I marked. I have tried saving the image to the file but to no avail, I have been able to only save the PictureBox image and that doesn't include the graphics. It is only the base image. I have tried to save it as a bitmap but have not gotten anywhere with that either. It seems whenever I call the image.save it takes only the value of the underlying image and saves it.
Private Sub BtnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnCreate.Click
pointmarked = False
[Code]......
I am building a program which offers solutions to the travelling salesman problem (finding shortest tour between a set of cities while visiting each only once).
My program loads a bitmap image of a map into a picture box. From there, graphics which point out the cities as well as tour paths are drawn onto the map. My problem is that when the option to plot ALL cities is enacted, the user may choose to pinpoint a specific city with a separate control. When the user erases that pinpoint via an invalidation routine, though, it erases all graphics beneath it, which is undesirable. How can I make my tour graphics and city plots semi-permanent by drawing them directly on the image? I tried drawing them on a separate bitmap, but it 'covered up' the map image.
i am wondering how to create a work area that i can store images that i have saved or scanned in my program. and i would like a page number folder aswell so you can see how many pages are in each folder when you choose the folder. so i know what i want it to look like, i will have two group boxes one called work area, and the other called pages. so when i click the work area folder called mike, it will show that mike has 59 pages in his folder and i can scroll and click each page(number) to view it in my picturebox. i would like to be able to create as many work areas as possible. i just need to know how to get started
View 3 RepliesI am developing a software that needs a function to clone CDs to image files (preferably bin cue). I have googled but not found any piece of code, class, dll or activeX control that can do this.My best bet is to use CDRDAO compiled for windows
View 7 RepliesWith the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
[code].....
What is the best way to create a non editable image from a text string? Currently I am saving a number of strings to .csv files. Are there any options that do not involve buying additional products? I am using VB.net 2005.
View 8 RepliesCreate an email message (with image attachment)?
View 11 Replies