Bitmap Effects (Firmware 2.0) Change The Source Of An Image In WPF
Sep 2, 2009
I think that changing from WinForms to WPF just because the blur effect is easier to do in WPF is the stupiest thing i can do right now it took me time to understand how the windows form application works i dont even how change the source of an image in WPF so here we are again. how to blur a speciefied image using CODE ONLY ?
See what im trying to do:
1. Imagine that you turn on your pc. takes some time to load.
2. Finally for the first time you are on the desktop.
3. Before you do something after every icon is loaded my program
takes a picture of the desktop and blurs it.
4. then it runs fullscreen showing the desktop behind as blurred and
not giving you access to the desktop.
5. a login/register border pops up
6. if you login the program closes if you dont it stays there
waiting for you to login or register.
I wont use it that way im planning to do it on the startup of my program only blur the window not the screen (i mean the content of my window) untill you login or register then it clears again. What i need to learn:
1. How to take a screenshot of my program (only yhe content of the window) [Progress: 1% (cause i know how to take a screenshot of the desktop)]
2. How to blur that image [Progress: 100%]
No need for third party programs or dlls i mean isnt there a default function in vb.net the stupiest way to do it?
Back when I used to use an 8 bit home computer I dabbled in machine code with an old version of BASIC which allowed you to POKE values into memory and then call the 1st memory location to execute that code. I used the equivalent HEX values for the processor which ran a series of ROR ( ROtate Right ) or ROL ( ROtate Left )commands through the carry bit as each line of the bitmap consisted of a series of bytes which were an 8 bit BYTE followed by the next BYTE in memory. The effects that I manage to create "in assembly language" as it were:
Scroll leftScroll right By manipulating full bytes in memory I created routines to:Flip the image horizontallyFlip the image verticallyTurn the image upside down Anyway, if you were to try this with the BASIC equivalent to GET and SET pixels, obviously the BASIC was a LOT slower. I am also interested in creating animated bitmaps from one or two images such as the following:Page turn effect.Sliding-in of an image in any direction.Ripple effect.Scratch effect.
I've got a function that's supposed to extract and return a 32x32px bitmap from a larger bitmap which has a set of 32x32 tiles inside it.
Here's the code I have now, but it's wrong since the Tile.GFX_Pos properties are telling it where in the destination image to draw, not where in the source image to draw from.
Overloads Shared Function TileGFX(ByVal SrcGFX As Bitmap, ByVal Tile As TileDef) As System.Drawing.Bitmap Try
[Code]....
So since this doesn't work, what I'm wondering is if anyone knows a good way to select where in the SrcGFX bitmap to blit from, instead of (as currently and incorrectly) selecting where in the destination bitmap to blit to.
I need to overlay the text, a movie or bitmap over a video.It would be possible to use VMR9 filters, but at playing of a wide video, for limits of a black square, it is impossible to overlay in out of video square range.
I have a VB.NET Windows Forms app with a logo image on the form as a System.Drawing.Bitmap inside a PictureBox.I used the Visual Studio Designer to add the logo .bmp image so I don't currently have any VB code doing anything with it.I'd like to make the current logo a clickable object/button so when I click on it a file browser dialog opens and I can select a new image to replace the current image.The current image is a local resource and is set in a PictureBox as a System.Drawing.Bitmap.How would I replace that System.Drawing.Bitmap with a file selected from the file browser dialog?
I want to be able to change an image depending on what is selected in the drop down box. I have this JS code to change the image. Simplified of course.
<script type="text/javascript"> function changeImage() { var oDDL = document.all("ddlNAME"); var NAME= oDDL.options[oDDL.selectedIndex].text; switch(NAME) { [Code] .....
When I call this function I do it in my DDL implementation. <asp:DropDownList ID="ddlNAME" runat="server" OnTextChanged="changeImage()" >
But for some reason the changeImage() is not firing. It is giving me an error saying 'changeImage' is not a member of 'ASP.default_aspx'
I have a code that takes the pink out of a image and makes it transperent. So its just the image no color around it. How do i make a shadow for that image like below to make it look like it has its own shadow?
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.
This code resizes a jpeg image, but instead of saving it I simply want to display the result in a picturebox. I moused over the the image box and the value thumb and they seem to be different formats. How can i convert bitmap to image?
I'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
I need to read a bitmap generated with paint or similar programs and interpert the picture to detect straight lines of black, larger squares in red and smaller squares of yellow, green or red. Which one of the Visual Basic environments are is best suited for this? WPF or Forms or..The lines represent walls and for start we have square objects as obsticles. I would like to create a maze and allow a dot to travel between obstacles leaving a trace of pixels and not hit any of the objects untill it exits.
I like to write the logic for it but I do not know how would I read a 500x500 pixel picture and decode the colors of each pixel. I like to assign a byte for each pixel's color (256color) but only use 4 bits of it to for start.
I am doing this as hobby. So please forgive me because I should only look at your answers during my free times.It will take some time before I could see it and mark your work as Helpful or Answer.
When I type a file with out a path it mean he is in: BIN/DEBUG folder. When I run this program I get a big red 'X' allover here.. Imports System.IO Public Class Form1 Dim SR As StreamReader Dim SW As StreamWriter Dim NumColumns, NumRows As Integer [Code] .....
I knew everything I needed to save an image, so I type in my code, and yet another error pops up. Here's the bit of code: screenshot.Save(CaptureMain.picLocation.ToString, Imaging.ImageFormat.Bmp, "Screenshot")
And, the error's kind of lengthly... Error1Overload resolution failed because no accessible 'Save' can be called with these arguments:
'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type 'String' cannot be converted to 'System.IO.Stream'. 'Public Sub Save(stream As System.IO.Stream, encoder As System.Drawing.Imaging.ImageCodecInfo, encoderParams As System.Drawing.Imaging.EncoderParameters)': Value of type [Code] ..... The variable 'screenshot' is a bitmap.
Imports System.Drawing Imports System.Drawing.Imaging Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click [Code] ...... I am using this, however I get a GDI+ Unhandled Error.
How can I retrieve HDD Firmware Serial number in .net? I am able to retrieve HDD Serial number using WMI calls but not able to find any way to retrieve HDD Firmware Serial number.
I am trying to display a bitmap image and am having a bit of trouble. I am new to VB.net and its functions. Here is a few lines of code I am using REM load the bimap file
I am trying to convert from a text file to an image(bitmap) file. For example, test.txt: 01 23 34 56 78 90
[Code]....
The first step will be reading the data, so I created some VB codes:
Dim openFileDialog1 As New OpenFileDialog() openFileDialog1.Filter = "Text Files (*.txt)|*.txt" openFileDialog1.Title = "Select a text File" ' Show the Dialog.
' If the user clicked OK in the dialog and ' an image file was selected, open it.
If openFileDialog1.ShowDialog() = DialogResult.OK Then ' Open file. [Code]...
The second step will be converting the data to some data format which can be used in a bitmap image. This part is making me confused. Some codes I made is listed below:
I am attempting to create a class library that can either search a bitmap to determine whether or not it contains an exact match to a second bitmap or if it contains a partial match. Currently it only returns true if i search the image for itself or if the sensitivity is below around 15%, even when i search with an image that i know should return true. The images I am using are simply a screenshot saved in paint and a section of that first screenshot also saved in paint. Here is my current .dll coding for VB 2008 Express
I am trying to get a small bitmap from a larger image. something like
Dim bmp As New Bitmap(PictureBox2.Image)
However this just gets the entire picture not just a portion of it, I would like to do something like this where I can specify the starting and stoping points
Dim bmp As New Bitmap(PictureBox2.Image, StartX, StartY, EndX, EndY)
I would also like to take these smaller images and paste them into a single larger image. Is there any way to paste it in starting a a certain point. Such as
my goal is to copy the content of a picturebox, to a System.Drawing.Bitmap object, called tempBMP. but i didnt even use it i just tried to declare it there's an error: Object reference not set to an instance of an object.
here's my
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click Dim colors(sizeX - 1, sizeY - 1) As Color
What i'm trying to do is fill a non rectangular region (actual build up out of 6 points) and draw a bitmap in such a way that it stretches with the region. Now for drawing a normal bitmap or even a trapezoid bitmap there are examples on the net. but drawing anything more then that with GDI+..
How 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
I am using the SmtpClient object to send an email in code. I have the emailing facility working however I wantt to include attaching a bitmap image file to the email and dont know how to do that. Can someone provied me with some simple code to show me how?
Why does "OPTION STRICT ON" complain about casting an Image to Bitmap. When CTYPE is not used but not the other way around?
Dim img As Image = Image.FromFile(My.Computer.FileSystem.SpecialDirectories.MyPictures & "ExampleFile.jpg") 'This is okay with OPTION STRICT ON.>> Dim bmp As Bitmap = CType(img, Bitmap) 'OPTION STRICT ON allows this but why? >> PictureBox1.BackgroundImage = bmp 'Why not? >> PictureBox1.BackgroundImage = CType(bmp, Image)
