VS 2008 PictureBox Always Repainted - PaintEventHandler Connected To A Picturebox Via AddHandler
Mar 31, 2010
I have a PaintEventHandler connected to a picturebox via AddHandler.
In PaintEventHandler I have coded this for writing the drawing to PictureBox1.Image:
Dim PictureBox1 As PictureBox = CType(sender, PictureBox)
PictureBox1.Image = New Bitmap(PictureBox1.Width, PictureBox1.Height)
Dim bmp As Image = PictureBox1.Image
Dim g As Graphics = Graphics.FromImage(bmp)
... drawing something ...
PictureBox1.Image = bmp
Everything works fine but after running through the paint event handler and showing the picture on the screen it calls the painthandler again and again. It does not stop.
Replacing the code above with
Dim g As Graphics = e.Graphics
Makes it running. But then I cant save the Image to a file.
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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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Jan 4, 2011
I am trying to draw a line on top of a picturebox but it keeps going behind the picturebox, even when I do Line.BringToFront()
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Jul 13, 2009
I was wondering how could I drag an image from a picturebox to another picture box. Anyone knows? Any tut or something.
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Aug 10, 2011
I have 2 clients connected via a server program.When 1 client hits an arrow key, a picturebox moves on client1 and on client2.Before adding this network functionality, the picturebox on client1 moved fast with each click.Now, there is a delay of like 2-3 seconds.I know the code isn't optimal, but i'm not a networking wizard.What i'm doing is when pressing a key on client 1, it passes a text to a textbox in client 2 which then has the picturebox move in client 2 depending on the text.The slowdown occurs on client 1, which is odd because the picturebox isn't directly connected to the network code.[code]
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Jan 27, 2010
when adding picture to dynamic picturebox from my.resources in .dll a duplicate semi functional picturebox is added too, behind the picturebox i intended to add. has anyone seen this happening before or can provide any insight into this?
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Jul 17, 2010
In VB6 I used some pattern of programming..I passed the picturebox as parameter to some procedure in some class and inside this procedure paint all needed graphics using this class methods.Now I want upgrade my application to vb.netBut all samples for line drawing show me how to draw inside paint event.[code]
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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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Jan 14, 2010
Hey I am making a GDI++ game in vb.net. Now what I want is the monster(picturebox) to go after the player(picturebox). There Are No Vertical Walls. Only The Edge of map barriers. For example to get to the player the AI would have to go to the end of the ledge and either jump off and fall to the lower ledge or take the ladder down. There is no jumping, only falling and going up and down ladders and across the horizontal ledges. So How Can I make this pathfinding system?
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Feb 28, 2012
I have a panel, which contaisn two Pictures.When the panel is mousehover the Pictures appears. When the panel is mouseleave the Pictures disappears.However, when I'm trying to pass the mouse between the Picturebox and Panel, the Picturebox disappears, because the panel doesn't detect that as panel area.
Private Sub Panel_MouseHover(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel.MouseHover
Me.NextIMG.Visible = True
Me.PrevIMG.Visible = True
End Sub
Private Sub Panel_MouseLeave(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel.MouseLeave
Me.NextIMG.Visible = False
Me.PrevIMG.Visible = False
[code].....
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Feb 28, 2009
My app has scrolling images in the background and a picturebox on top. The image in the picturebox has transparent parts. How can It so that the transparent parts show whatever is belo the picture box, not the form background? I have tried taking screenshots and positioning them as background but this just freezes the app.
Dim ScreenSize As Size = New Size(154, 83)
Dim screenGrab As New Bitmap(154, 83)
Dim blank As New Bitmap(100, 300)
[CODE]...
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Jan 31, 2011
I need to plot some analog values read from the serial port.I plot them in a picturebox starting from left. When I reach the end of the control at the right side I shift all values to the left of a point and I plot the new point at the right, (I have some flickering but it could be acceptable). This is my plotting control.My problem is that I have to clear the control (picturebox) in order to plot the shifted graph, but the method Clear of the Graphics class clears everything inside the picturebox, even my grid.How can i make always visible a grid "in" my picturebox?
1.a transparent image with a grid over the PB? (the clear method cannot remove it)
2.an image with a grid below the picturebox that must be with a transparent background to make visible the grid?
3.multiple layers on the same picturebox?
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Nov 11, 2009
Ok, so I have a new challenge for the D.I.C. Heads. I'm making a simple little game using VB controls. I know it's not the best idea in the world but it'll have to do for now!
Here is whats happening. I've created a class that inherits the PictureBox control that I want to use to place my game pieces on the playing field.
Dim pbArmyUnit(0) As ArmyUnit ' ArmyUnit is a Class that inherits Picturebox now I create the playing pieces at runtime as needed and append them to the array. Player currently buys the units and places them on the playing field.
[Code]...
On a side note how can I look at a stack of pictureboxes all created at runtime to determine whats at a particular location? Example. I move my army unit over top of the picturebox that shows my forest. How can I tell what picturebox I just moved on top of? does that make sense? I don't need code for this just directions on looking at the right info so I can figure it out.
I am creating my terrain at runtime as well since it's randomly generated. and I'm basically making an array of 192 pictureboxes with the appropriate terrain image as well as some other modifiers. Just like with my armies above I've inherited picturebox and created a terrain class array, this way I'm able to add my movement modifiers etc, directly to the picturebox I place on the screen. It's these pieces of terrain that I want to be able to check before allowing the unit to move into them! to get movement costs etc.
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Dec 4, 2011
how do i create an event for MouseEnter but instead of the mouse a picturebox?
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Jul 8, 2011
I have a picturebox on a form. The image in the picturebox is actually a report. I want it so if the user clicks on it it will zoom larger --- while the picturebox remains the same size. Of course, the entire image will no longer be seen. So I also want to be able to drap this image around with the cursor. The examples I've found for picturebox zooming cause the picturebox itself to get bigger and smaller. I need it to be like an Access report. Click on the report and it gets bigger. Click again and it goes back to the full image. Does anyone know of an example or tutorial in VB.Net for this type of zoom-with-fixed-size picturebox function?
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Jan 21, 2011
I am working on a small desktop form in VB 2010 and am trying to place a pictureBox with an image in it, next to another pictureBox already located on the form when the user clicks a button.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim tool As String
[Code]....
But for some reason the newPictureBox with image from "ptext" does not show up on the form. When I specify the new Point to be something like, (50,50) instead of getting the first pictureBox coordinates, the new pictureBox shows up in the right place.
Am I using System.Drawing.Point wrong? Or is there some other error that I'm making?
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Dec 16, 2010
How can I get the xml in to a dynamicly created picturebox as a name
Dim SongXmlElement = <PlayList>
<%= From item In El_Song.Elements Select item %>
</PlayList>
[Code]...
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Dec 16, 2009
i would like to drag a picturebox inside of another picturebox and I think I already made it. the problem is the object I am trying to drag is behind the picturebox ....how to I make it so that it will appear infront of the picture box? also when I drag it out again of the picturebox I would like to restrict it so that dragging out of the picturebox is not anymore possible?
HTML
Public Class Form1
Dim dragging As Boolean
Dim mousex As Integer
Dim mousey As Integer
[code]....
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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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Jun 5, 2009
I am making pictureboxes as enemies, and i have a picturebox that that user controls. I want the enemies to move towards the user's picturebox, regardless of their position (Which will be random!).
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May 12, 2010
In my program the PictureBox arriving later in program
casts a much larger needed shaddow over the base picture.
The shaddow would not show on my computer but it appears
when I run the same program on another computer.
Is there a trick to make the shaddow go away?
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Nov 15, 2010
I know when I draw to the form and add controls I get a flicker effect.If I draw to a picturebox on the form and add controls will the picturebox flicker?
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Mar 1, 2012
In VB6 I could embed a panel or picturebox containing controls or images within an outer panel or picturebox. If I moved the outer control then the embedded panel would move with the outer panel and stay in the same relative position, which is what I require. This doesn't seem to happen in VB.NET, the internal panel stays fixed in its location, even if I have pasted this panel within the outer container. Is there are trick to this or do I have to code to get the internal panel to move with the outer one? How does an internal container remain embedded within an outer one?
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Sep 26, 2010
I am developing a math quiz game. I am at the part where in i need to demonstrate place value.
So here's my question.
I have this image.
[URL]
The data is from a database that is why i needed it dynamic.
[URL]
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Nov 21, 2006
I am trying to do something really simple. I have a small PictureBox control whose image is a GIF file that has some transparency (the white background is the transparent color). When I stick this control on a form, it is indeed transparent, as the color of the form shows where the white used to be. So far so good.
Now, I want to stick my small PictureBox on top of a much larger PictureBox, which is full of different colors. When I do so, the transparent gif no longer works - instead of showing the colors 'behind' the white, it is still showing the color of the form!
In VBA (e.g. MS Excel VBA form, using Image controls) this is trivial - you set the 'backstyle' property to 'transparent', and it works like a charm. But in Visual Studio 2005 I cannot for the life of me figure this out - it should be simple.
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Sep 11, 2009
click on a picturebox and get a 'mark' to appear. (This currently works just fine using the code below.)I would like to have only one mark on the picture box at a time, i.e., I need to remove the previous mark on each mousedown event and I am unsure of how to get this done.Once the user has placed the mark correctly on the picturebox they will fill out a few extraneous textboxes of information and press a 'save' button. This will update a table (currently access) with that extraneous data plus the x and y of the mouse position when it was clicked.What I would like to do at this point in the process is remove the mark from the picture box and in it's place add a premade 'pin'. Sort of the thing you do in google earth. This would be a jpg or bmp or png file. The type does not matter.
Private Rectangles As New List(Of Rectangle)
Public Sub New()
InitializeComponent()
[code].....
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Oct 3, 2009
I made a program with an invisible form and a picturebox that follows my mouse around the screen, the problem I'm having is the I cannot click anything, is there a way I can make it where I can see the picture in the picturebox and still not click on it?
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Jul 6, 2009
How in my form1 can I make it so everywhere I move my Mouse the picturebox is right under it? So my mouse would be pointing in the middle of the picture box everywhere I moved it. I tired making my own code but this isn't working the way I want it to
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim mouseLocation As Point = Windows.Forms.Cursor.Position
TextBox1.Text = mouseLocation.X.ToString
TextBox2.Text = mouseLocation.Y.ToString
PictureBox1.Top = TextBox2.Text
PictureBox1.Left = TextBox1.Text
End Sub
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Jun 13, 2010
I'm studying Visual Basic (using Visual Studio 2008) as part of an all-round IT foundation degree...I must confess that programming is becoming my weak spot! Unlike the C++ I was taught last year, I'm not finding VB too easy...probably becasue I've never programmed this way before and I've missed a couple of lessons.
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