How To Get Only Visible Image On Picturebox

Sep 11, 2009

How to get only the visible image on Picturebox the picture size is 320 x 240 and the picturebox is 240 x 240..i want to save the image in 240 x 240 pixels how?

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PictureBox - Visible Loading Image (GIF)

May 30, 2012

I am trying to get a picture box (that has a loading image .gif) to be visible while the program reads a text file and change visible to false when all the information in the file.txt is displayed in the textbox.

Here is my
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
PictureBox1.Visible = True
If System.IO.File.Exists("C: est.txt") = True Then
Dim objreader As New System.IO.StreamReader("C: est.txt")
[Code] .....

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VS 2008 Get Only The Visible Image On Picturebox?

Sep 11, 2009

How to get only the visible image on Picturebox

the picture size is 320 x 240 captured from webcam and the picturebox is 240 x 240 the sizemode of picturebox is centered so the image is centered

when saving the image i got 320 x 240 image not 240 x 240

i want to save the image in 240 x 240 pixels how?

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Make Several PictureBox Images Randomly Visible = False And Then Back To Visible = True Giving The Appearance Of Flashing Or Blinking Images?

Jun 28, 2010

I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:

Dim picLight(2) As
Boolean
For intX

[code]....

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Make PictureBox Visible In Program?

Jun 25, 2009

I have written a VB2008 program in which I want to put graphics output in a PictureBox but keep the PictureBox hidden until a "Show Graphics" button is pressed at runtime. I have done this by setting the PictureBox's Visble property to False at design time and then adding a line in the Button Click code (before the main graphics code) to make .visible = true. Now when I press the button, the picture box becomes visible but stays blank. I have to press the Button a second time to get the graphics to show. It doesn't matter where in the Button code I place the PictureBox1.visible = true line, the result is the sdame. WHY ? Other VB Controls, eg RichTextBox will stand being made visible and then display output with only one click of the button, why is PictureBox different ?

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Visible Surface Of Picturebox Is Too Small?

Jun 27, 2009

I'm drawing lines directly on a PictureBox. My problem is that the visible surface of the PictureBox is smaller than expected, considering the Height and a Width properties.For example, there is a PictureBox with Height = 200 and Width = 400 points.When I draw a point with coordinates of (0,0) it is clearly visible in the topleft corner. But when I draw a point with coordinates of (399,199), it's not visible. Actually, the bottommost and rightmost point in the Picturebox seems to have the coordinates of (397,197).

What's the reason behind this? Is the PictureBox always two points smaller, or is it size-dependent? Or a wrong setting?

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VS 2010 Picturebox Properties Not Visible?

May 20, 2012

Picturebox properties created inside one sub not accesible to other sub, Eventhough Both subs are public.

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Making A Form Resize When A Picturebox Becomes Visible?

Feb 8, 2012

The basis of the program is that the user enters info into to text boxes then hits a button, when the button is clicked and all the parameters are met, the visible property of a rather large picture box becomes true. What I want to do is have the form start off small, just big enough to hold the labels, text boxes and buttons and then resize when the picture box is made visible.

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Drew An Image In A Picturebox With The Image Height As Picturebox Height And Image Width As Picturebox Width

Aug 15, 2011

I drew an image in a picturebox with the image height as picturebox height and image width as picturebox width. The image is placed somewhere on the center of the picturebox. My intention is to scale the image to fit to the picturebox.

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Have An Image On A Form And Only The Image Be Visible?

Feb 10, 2009

I want to have an image on a form and only the image be visible. I can do this now with a square image and hide the form border and make the form the same size as the image. When i run this I get a form where only the image is visible, which is what I want, but what about odd shape image. I'm thinking of using a image of a football helmet and making a custom mp3 player. Where only the image of the helmet is visible, but I haven't been able to do that with odd shaped images.

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Drag Image From Picturebox To A Dynamically Created Picturebox?

Sep 27, 2009

I have a program I'm working on that, for one of the features, allows the user to drag an image from a picturebox, into the main form space, anywhere they want. [code]...

When trying to drag the image from the CurrentTilePicBox, the very moment I move the mouse while dragging the cursor becomes a circle with a cross and won't drag and drop into the new picturebox.

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VS 2008 Add Picturebox During Runtime And Loading Image Into Picturebox?

Feb 8, 2010

i'm doing a simple form tat could add picturebox during runtime and i could add several picture into it.

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Make A Picturebox That Was Made After Pressing A Button Not Visible When Intersecting With A Label?

Mar 20, 2012

In my space invaders game, you press start, which creates 15 pictureboxes. When I hit the spacebar, a bullet moves to the top of the screen. What code would allow me to make a picturebox invisible that isn't named yet?

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Forms :: Random Functions - When Start Program And Click Picturebox - Same Card Will Always Come Visible

Mar 30, 2011

Okay, so I'm doing a card game and I'm trying to set that when picturebox (PictureBox1) is clicked, a random card from 13 cards will come visible. Problem is, that when i start the program and click the picturebox, the same card will always come visible. As you can see i've put a button (Button1) which will hide every card. If I press Button2, then Button1 and then the PictureBox1 it will show differend card, but the cards which come visible are always the same.

e.g i press PictureBox1 (which will make card visible), then Button1 (which will make PictureBox1 non-enabled) and then Button2 (which will hide every card and make PictureBox1 pressable). Lets say i pressed the PictureBox1 four times and i got cards: 9, 6, 7, 3, then I close the program, start it again and press PictureBox1 again 4 times and it will show the same cards (9, 6, 7, 3). How can this be done that it will not show the same cards always?

Here's my code...
Public Class Form1

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
End

[CODE]....

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PictureBox - Image: Select The Path To A Local Folder That Is Within The Application And Get An Image From It?

Sep 15, 2010

I have a Picturebox and a two Buttons on my Form. On click of one of the buttons I want to change the image in the picture box at runtime.

This works fine when I give the location of the image (the full path ) on my computer - but then of course it will not work if I use the solution on a different computer .

So I have made a folder named "Pics" inside my application and added two images into it.

How do I get to this local folder in the following code?

Picturebox1.image = system.drawing.image.fromfile (??? )
instead of the usual,
Picturebox1.image = system.drawing.image.fromfile ("C:UsersMyName My PicturesMyPicture.jpg" )

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Runtime Picturebox.image Update From A Control Owned Imagelist.image

Feb 1, 2012

I'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]

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Add Picture Box Image Name To Textbox - Depending On Image Displayed In Picturebox

May 20, 2009

i'm lost on this code.. i have a picturebox that swaps 2 images, depending on the action, file_red and file_green.. what i'm trying to to is, if a picturebox switches a image or not, to be able to detect that and have textbox8 add a line with the detection.

[Code]...

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FAQ: Draw An Image Respectively On The PictureBox Control And Image Object?

Apr 10, 2009

How do I draw an image respectively on the PictureBox control and Image object? Welcome to the All-In-One Code Framework! If you have any feedback,

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Make A Picturebox Image Equal A Certain Part Of The Image

May 23, 2010

i have a image with four squares evenly spaced out. I want a picturebox's image to be one of the squares at a time so it's like a animation except it's only one image.

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VS 2008 - How To Check If Image Visible On Screen

May 16, 2012

I am trying to code something that will check if a png image is visible on your screen. So lets say the image is a purple square with yellow circles in it (random example). It will keep checking to see if the same purple square with yellow circles is on your screen. What I'm trying to say is, instead of checking for one pixel color, check to see if the actual image is on there (maybe multiple pixels?)

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Convert Visible RichTextBox Area Into Image Object?

Aug 12, 2009

I'm working on a Vb.net project. I have a form with a RichTextBox or a simple TextBox control. It contains hundreds of text lines, so the control has to be scrolled.

I want to send to a printer only the lines that are currently seen on the control window.

That is, I want to convert what I see into an Image and then draw that image thru e.Graphics.DrawImage.

As you can see, it could also be the case of a ListBox, a TreeView or any other scrollable control.

How can I grab that rectangle area and then convert it into an Image? The rest I already know how to do it.

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Comparing PictureBox.Image With Resource Image?

Dec 30, 2010

I have a PictureBox which I would like to check if it's the same as one already imported to resources . If it's the same it'd do a condition otherwise it's do something else .

If I try

If PictureBox1.Image = Jogos_Matem�ticos.My.Resources.Resources.Cross Then
'code here
Else

[Code]....

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Crop Original Image But Not Image In Picturebox?

Feb 8, 2011

I have an application which first load an 1200*800 image into an 600*400 picturebox. When i crop the whole image in picturebox and save it, the size will be 600*400. How can i make it save in 1200*800?

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XP - Background Image Of The Panel Is Only Visible Behind Buttons - But Not In Empty Space

Jul 23, 2010

I have a VB.Net project. The form has a panel and few buttons inside panel... The problem is that the background image of the panel is only visible behind buttons....but not in empty space....The app is running fine on Windows 7 but the problem comes on XP....I have tried "Enable XP Visual Styles" but no luck....When i dock a button to fill all empty space then the background image is visible....but if i remove the button ... background image is not visible....

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VS 2008 : Stray Graphics Path Image Generated When Label Is Set To Visible = False?

Oct 11, 2009

I have a graphics application that uses graphics paths. Code seen below. You can use keyboard characters to display information. When a label is set to visible = false after being turned on for a number of seconds a stray image is generated. The stray images are also sometimes generated when the label is first made visible.

' points p10b, p2b etc are defined elsewhere
Dim GrpPoints As PointF() = {p10b, p2b, p3b, p11b, p5b, p6b, p12b}
GrPath = New GraphicsPath ' 7 path points
GrPath.AddBeziers(GrpPoints)

[code]....

I tried stopping the code from running when the label is set to visible = false but the stray image is still generated but just later. If you want more information let me know.The white arrows points to the stray image that is created just after a label that displayed information was set to visible = false

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Big Panel Visible And Not Visible Based On Selections Made By User

Jan 28, 2009

I've got a panel - that's in a group box. All of this - with lots of other textboxes on labels - is in another panel (the big panel).I make the big panel visible and not visible based on selections made by the user.This small panel - that's in the group box. I cannot seem to make it appear.Even if I leave it VISIBLE at design time - the objects in it will not appear.Is there some kind of nesting problem that I'm not aware of!

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Making Menu Item Visible Or Not Visible In Master Page

Jan 25, 2011

I have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.

[Code]...

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Jumping Between Forms - Making A Form Visible And Not Visible

Jul 17, 2009

I'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.

As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.

If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.

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Add A Image To Picturebox?

Mar 9, 2009

I'm wanting to add a image to the picturebox. The image would be a variable. I'm trying with the following code with no success.[code]...

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Getting Image From A Picturebox?

Sep 9, 2009

how can i get an image that i drawn on a picturebox? in my application i created a form with the freehand drawing.but i can't save the image that i drawn as a file,there have a error message that "object reference not set to an instance of an object".I am using the code me.picturebox1.image.save(filename,sysytem.....jpeg)

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