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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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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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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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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Apr 20, 2009
I got some set of base classes within one namespace and few sets of derived classes in other namespaces. Everything in one project.[code]...
OK, it can be done declaring .SubElements as Protected in BaseElement class. But in this case I cannot access this property from other classes in Base namespace that are not derived from it.
I tried adding Friend keyword, but it made this property visible when I'm instantiating derived classes too.
So... any way to hide some properties when using derived classes while being able to use them using base class?
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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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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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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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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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May 20, 2012
Picturebox properties created inside one sub not accesible to other sub, Eventhough Both subs are public.
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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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Aug 18, 2009
Below is the exception code info. when I try to make form visible for the first time from another form then I get an exception code. something like 'a required variable not set'
Quote:
CODE:
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May 4, 2012
I'm a beginner at using vb. I'm having a problem with making group boxes visible. I have two buttons: btnLevel1 & btnLevel2. When user clicks btnLevel1 GroupBox3 must be visible and GroupBox4 must be hidden. And when user clicks btnLevel2 GroupBox4 must be visible.
[Code]....
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Apr 7, 2010
i just uninstalled vb2010 express beta 2 + installed vs2010pro rc1.
how do i make the immediate window visible? i tried ctrl+shift+i but it doesn't show...
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Aug 10, 2009
if i set the "window State" to "normal" then my;
Private Sub NotifyIcon1_MouseClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles NotifyIcon1.MouseClick
If Me.Visible = True Then
[Code]....
works fine, however, if i set the "window State" to "Minimized" then clicking the notify icon no longer makes the app visible? :s
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Feb 23, 2011
a common VB.NET class should look like the following:
Public Class MyClassName
End Class
Besides, I have already seen, if I remember correctly, all of the import statements visible just like in C#:
Imports System
Imports System.Data
Imports System.Linq
Public Class MyClassName
End Class
How to make these default imports visible by default in VB.NET using Visual Studio 2008?Is there some setting or the like in the options I shall set?
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Apr 22, 2010
I have this code for hiding a table and a cell in aspx, backend vb.net
Code:
For Each row As HtmlTableRow In tab_a1.Rows
If row.ID = "a1" Then
For Each cell As HtmlTableCell In row.Cells
cell.Visible = (cell.ID = "a1")
[Code] .....
Now instead of tables I'm using tags. How can I use similar code and make div's visible and invisible?
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Aug 3, 2011
Generally speaking, a common VB.NET class should look like the following:Public Class MyClassNameEnd Class
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Jun 28, 2010
i know how to draw a rectangle and fill it but how do i make it visible over a WebBrowser control, also how would i make the FillRectangle 60% transparent? i have found no understandable results on google. could someone please help me figure this out?
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim myGraphics As Graphics
Dim MyBrush As New SolidBrush(Color.FromArgb(128, 0, 0, 255))
myGraphics = Graphics.FromHwnd(TextBox1.Text)
myGraphics.FillRectangle(MyBrush, New Rectangle(0, 0, 100, 100))
End Sub
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Nov 20, 2009
I have a form with six picture boxes on it. Each Picture Box has a button underneath it. When the button in clicked, a "Label" and "Textbox" appears. My question is, how can I close the currently open "Label" and "Textbox", when I click another button. I have a working code below, but it's not efficient. As you can see, I will have to list all labels and textboxes on the form. Is there a way to identify all labels and textboxes without naming them all. [code]...
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Jul 16, 2011
Well im not understanding to much about the panel control. I am not understanding on how to do this panel control put a textbox and button control in it, when the user selects load from Internet, you make the panel control visible, then use the textbox to get the URL from the user and the button to fire the event that makes everything happen
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Jul 17, 2011
I am working on a project where I have to automate Internet Explorer to perform certain tasks. In this context, I have a small snippet of code which creates Internet Explorer Object and navigate to Microsoft website. When I run the code from VS 2008, It works fine and IE is visible. but when I publish the code and run from IIS, it works again but IE is in invisible mode.My Question is how to make the Internet Explorer visible?I also added the impersonation to web.config but the problem still exists.
Code is as under:
Imports SHDocVw
Partial Public Class _Default
Inherits System.Web.UI.Page
[code]...
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Jan 11, 2011
I have a class that inherits from DataGridView. However, when I create a new instance, set the position, width and height and then run the project, the datagridview is not rendered.Is there something else I need to do the make the datagridview become visible?
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Nov 9, 2009
I am trying to make a picturebox follow another picturebox. But I also want this picturebox to be able to collide with the other picturebox if the picturbox stops. I hope this is not too confusing. I cannot figure this one out. The code below is probably nothing like what I should be doing, but i cannot think of any other way to do what I want.
PictureBox1.Location = New Point(PictureBox2.Location.X)
PictureBox1.Location = New Point(PictureBox2.Location.Y)
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Jun 10, 2012
I have two Picturebox and both should be transparent background, but the real problem is both transparent for form background but not over each other .
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Aug 3, 2010
I have a document management system which creates a report showing people who own which document. There are times where people have 0 documents and in that case I would like the repeater table for that person to not be visible. I have looked around for a while and have not had much luck, I have repeaters nested inside repeaters but if the first repeater is not visible the rest should follow.
[code]...
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Jan 13, 2012
In visual basic.net I have been playing around with groupboxes and things of that nature, is there any way to group items into a box, say, buttons, and use the groupbox as a container to move / hold all of its contents while not being visible in any way? (no decoration perhaps?)
I've tried making the groupbox invisible but that makes all the items within the groupbox invisible as well.
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Nov 2, 2009
Is it possible to make an application, but that isn't visible in the taskmanager -> applications
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Jan 27, 2010
I want my form to be invisible but I want the buttons and list-box to still be visible. So basicaly I want a bunch of floating buttons and listboxes on my screen.
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Nov 26, 2011
I have a form which contains the following :
1. Textbox1
2. Button1
3. Label1
Label1.Text = "Updated Successfully"
Label1.Visible = False
Now what I want to do is, when I Enter something on Textbox1 and click Button1, Label1 should be visible and blinking.
Label1.Visible = True
But, when I type something on Textbox1 again (before even hitting Button1), Label1 should not be visible anymore and continues this way.Another way is to make Label1 visible for a specific time, say 5 seconds (blinking) and goes invisible. I prefer the first one though I would love to learn both?
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