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.
View 5 RepliesBack 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.
This is a follow on from a recent thread
View 3 RepliesI 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?
url...But what I'm looking for is just see if any alpha (0-254) is used in at least one of the pixels. Would the Bitmap.Lockbits and BitmapData method be the most efficient (speedy?) or is there another way. I've tried toying around with ColorPalette and the Alpha flag, but never could figure it out (and even if it is a way to check to see if the alpha channel is used at all).
View 5 RepliesI am trying to encrypt text to a textfile(.txt) and then decrypt it in a diff. program.The encrypting part works fine.I have tried these functions in a textbox and they work perfectly, I get InvalidCastException when trying to decrypt from the .txt file.
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I have a form with some text boxes bound to a dataset using the binding source component I'd like to change one of the unbound fields in the current record programmatically before posting any changes from the bound controls
View 13 RepliesI need to overlay the word 'VOID' over a textbox but in a semi transparent way so the text in the textbox underneath 'VOID' can still be seen.
I have tried using various controls with no luck and there is no paint event for the textbox.
I have PNG and need to know if it has an alpha (or if the alpha is completely white)? How can I accomplish this in vb.net code.
View 1 Replieshow to draw text on alpha blended form?
View 2 RepliesI have encrypted a string to something like this:
1. Asak2$)kla1015QAXKFskfa332aSJ2(Ska@Skljcmcel3p.lq,aowpqaskla2@)Skx.:Pdm^),dfs;
what i want to is convert this string to something like this
2. JXK2LB AP2WXB S1P0XE ZXPA3H X1LAKW DOXPS3
both 1 & 2 the above strings are fictitious (i made them up to make my point clear)
I am trying to make a licensing system for my VB 2010 express application. (2) above will act as a serial key which can be derived from (1) which is an encrypted form of something unique of the client computer.
I will then confirm the (2) from the client.
I'm using Bitmap to show picture box like slideshow using Timer. For each timer interval, I've to go for new instance of Bitmap, there System memory increases to 1MB, How to resolve this, 'BG is picture box
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tic Dim img As Bitmap
img = New Bitmap(System.Drawing.Bitmap.FromFile(FileIO.FileSystem.GetFiles
[CODE]...
My goal was to make something that would constantly update the amount of gold that someone had. If they had X number of gold, it would display a certain image for a picturebox. You get the deal.I get "Error1'Money_Checker_Loop.My.Resources' is a namespace and cannot be used as an expression. C:**AppDataLocalTemporary ProjectsMoney Checker LoopForm1.vb3347Money Checker Loop.[code]
View 1 RepliesI'm trying to use a ToolTip directly to a Bitmap Object (System.Drawing.Bitmap), aparently I can't do this because Bitmap isnt a Windows Control.
View 1 RepliesI'm trying to resize a .NET bitmap without actually scaling the image. The idea here is to create a space above and below the image, fill it with a black rectangle, and place some text there (without covering up or destroying any part of the original image).
All the code and examples I've seen of this thus far just show how to scale the image, not expand the canvas. So far, everything I've tried on my own also scales/stretches the image.[code]....
Can I Draw text onto a bitmap? or can I convert a string to a bitmap?
View 4 RepliesI want to add some text to a photo (held in a bitmap) but rather than write over the photo itself I want to add a small black bar to the bottom of the image and write some white text in it.
e.g. a 640 x 480 photo becomes 640 x 510 with the black bar at the bottom.
I have three Tables in the MS Access database as below:
Company_Data
Name|Age|Department|Salary
User_Data
[Code].....
and i have a compare button on the VB form. Is there any code that can compare the Company_Data with User_Data and copy all the records not found in User_Data to Changes_Data table. When updating it should update the "updated on" Column to the current Date.
Same needs to be done in the opposite way. Compare User_Data with Company_Data and note the diff. No Need to update Salary in this case.
I need to create two diff app
1.Windows application
2.WPFapplication
in a same project.I need to call forms and pages of both app and integrate them ex How to call WPF page from a win application)
I have created a small app that gives, User Name, Pc Name, Domain & Local IP Address. I run the exe from my pc (development pc), it works fine. I put the exe on network shared folder and run it from my pc, It works fine. I put the exe on network shared folder and run it from another pc (logged in as admin) it gives "Application attempt to perform an operation not allowed by the security policy. To Grant this application the required permission, contact your system administrator, or use the Microsoft .Net framework Configuration Tool."
so, I contacted my self (since I am the System admin) :) and myself did not know the answer even after I read this [URL]... which says On the Web server, open Administrative Tools, and then double-click Microsoft .NET Framework Configuration. and the the other pc is XP not Windows server.Now If i copy the exe to this pc on a local drive, it will work fine and give right result. Another weird thing is when I run this exe from Windows 2003 server, and it gives a security warning, after i press ok, all the result was fine except the ip address with was "::1"
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Below is the code that i use to call up a new form. I wish to pass the variable 'connstr' into frmRace.
Public Function ShowRaceForm(ByVal userName As String, ByVal connStr As String) As Form
Dim frmRace As New RaceForm
Return frmRace
End Function
how can i create a monochrome bitmap from a semi transparent bitmap in vb.net? the bmp is for a transparency mask image for an icon i'm trying to create with the CreateIconIndirect API function.
i'm using vb2008 .Net3.5, but i would prefer an answer that would also work in vb2005
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.
I have a pretty complicated project with lots of class files, code modules, etc. There was a changed to one of my referenced DLLs that requires an isolated change in a single Sub within my solution. Unfortunately, this new Sub is not compatible with most of my clients' configuration but is required by some of my other clients. So now I must keep two versions in Source Safe of my solution - which I do not want to do. What I would like to do is to be able to determine which DLL is running and flip a switch to use the either the old Sub or the new Sub. Currently the sub is in a class, but I could break it out. Is it possible to determine which assembly version DLL is running? Also, if I reference the new DLL, the old Sub will not build. If I reference the old DLL, the new Sub will not build. So is there a way to keep both Subs in the same project?
View 1 RepliesI am trying to convert from a text file to an image(bitmap) file.
For example, test.txt: 01 23 34 56 78 90
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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:
[Code]....
I have a bitmap file which has only tamil language text and English text.
View 1 RepliesSo what's happening is, I open the original image, get the graphics object, draw a string to it then save it as a new file.
vb
Dim path As String = ImageThumbs.Rows(0).Cells(ImageThumbs.Rows(0).Cells.IndexOf(ImageThumbs.SelectedCells(0))).T
[code].....
i have 5 columns & it bind to gridview.nw i want to link in the 2nd column which redirect to diff page.
View 1 RepliesHere is a short program to demonstrate my question. I just want to extraxct a rectangle bitmap from a big bitmap.Code as follows:
Private
Sub Button3_Click(ByVal sender
As System.Object,[code]....
Execution stops when hitting the Dim cloneBitmap statement, which should have created a bitmap out of the rectangle cut out.The message is:
"MissingMemeberException was unhandled.
No default member was found for type 'bitmap"
I just don't get it. Seems that the method Clone(Rectangle, PixelFormat was not found.
I have a grass image located here in my directory. I want to just create a Bitmap, but I am getting an error. (Parameter is not valid.) Immediate Window: A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll
[URL]
private void Form1_Load(object sender, EventArgs e)
{
Bitmap bmp = new Bitmap("grass.jpg");
}
bertino