Painting To Graphics On A Panel With A BackgroundImage?
Feb 28, 2012
I have a panel that has a BackgroundImage set to "zoom". Because of this, the image usually has some grey "letterboxing" showing the panel beneath the BackgroundImage. I want to paint on the Graphics Object of the Panel using its paint event handler. Is there a way to contrain my painting to just the image part of the panel? Is there a way to find the rectangle that the BackgroundImage is occupying within the panel?
P.S. I don't want to make a graphics object from the BackgroundImage because I'm already using that for some other "paint layers".
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Aug 24, 2010
I downloaded Visual Basic 2010 Express and got familiar with it over several days but the following issues are stumping me:
Where are the art instructions to be found? The ones featured in the examples are pretty basic. I've looked all over but can't find anything.
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Aug 11, 2009
I'm trying to update every millisecond the BackGroundImage of a PictureBox. But it don't works. I think that it comes from the figure that I update every millisecond in the PictureBox.[code]
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Dec 7, 2011
I have inherited the standard panel control to create a panel having custom border color. The problem is, while the panel is on a form and any other form is moved across it, it paints hapazard lines of the same color as the panel custom border color, all throughout background of the panel. I tried to Refresh or Invalidate the panel in its paint event but of no avail. The same is happening while designing in the design editor too. See attached image. Why is this happening and how to get rid of it? My code follows:
[Code]...
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Feb 9, 2009
Well im just upgrading from VB6 and i was able to paint images to the background of a form. The same method does not seem to work in VB 2008. Is there a way i can draw/paint images to the background of my form?
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Apr 1, 2011
IDE: VB Express 2008Problem: Painting DataGridView Columns.I have done extensive Google searches and found very little on the subject.I have searched this site to no avail.
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Feb 19, 2010
I'm writing a simple paint program in VB 2008 that allows the user to create rectangles using MouseDown event to anchor one corner, MouseMove to stretch (or grow) the rectangle, then MouseUp event to complete the rectangle.The last statement in the MouseDown event is Me.Invalidate() to trigger the form's paint event where all the rectangles are drawn (refreshed).
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Nov 11, 2011
I have created a custom ToolStripProgressBar. It is basically a class inherited from ToolStripStatusLabel, and i paint the 'progress' bar myself (just a simple rectangle). I have tried creating a custom ToolStripProgressBar using different methods including inheriting from both ProgressBar, ToolStripProgressBar and ToolStripControlHost. I always ran into difficulties doing in this way. Inheriting from ToolStripStatusLabel works well, but with one issue...
In order to have the progress bar update in the statusbar, i have to call StatusStrip.Refresh. Trouble is, adds a huge overhead to the drawing of the progress bar graphics. Simply calling the invalidate method of my ToolStripStatusLabel does not seem to render anything to the screen. how to have my graphics draw without calling the refresh method?
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Oct 4, 2010
I have a TopBar, A LeftBar, A VScrollBar, A HScrollBar and a Panel inside a SplitContainer Panel.The issue I'm having is that when my SplitContainer Panel is small enough to enable one of the ScrollBars, I will slide the ScrollBar and then when I resize the Split Panel, my Panel1 is staying where I scrolled it too.I'm having troubles thinking of the correct code to fix this.
[Code]...
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Dec 3, 2010
I been trying to create a section for my program to change the backgroundimage property of the main form. let me show the code: (some parts may be bad written but I was trying to try to find the problem) this code is a click event from a button
[Code]...
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Mar 20, 2009
The panel is 989 x 516. The bitmap is 989 * x, 516 * x. The error comes up when I try to increase x to more than 10. Is there some kind of limitation with the panel's size or the bitmap's size? If so, how can I work around it?
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Jul 30, 2009
I have one panel, is there anyway I can control two different drawings in that one panel? I have a gradient background which changes colors, then I have an Ellipse which I would like to move around the panel, without effecting the background gradient.
[Code]...
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Jan 9, 2010
Im wondering how best to create my graphics device. It seems that traditionally in applications that use directx, the graphics device is almost always a new windows form (from the examples ive seen). However, im looking at something different in my application.I have a windows form with a ToolStripContainer that has been subdivided into several other panels using SplitContainer objects So as you can imagine, i have quite a lot of panels on the screen. I want to render my graphics in one of these SplitContainerPanels.My concern is whether this will result in poorer performance or excessive flickering etc.
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Mar 17, 2009
I'm making a plotting program. The panel (vs picturebox) is necessary because the data doesn't all fit into one screen so scrollbars are needed. I'm using graphics to draw the background layer and buttons for the data points.
When I scroll, the background is redrawn incorrectly since the top left corner of the panel is no longer the top left data point. Ideally, I'd like to prevent the background layer from redrawing entirely (after the initial draw). Alternatively, how do I take in consideration the new position of the scrolled panel in drawing the shapes & lines in the background layer?
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Jul 12, 2011
I've got an app that I want to have an MDI with. It functions fine, but there needs to be a control panel off to the side of it to drive the child documents' creation. I have two problems with this.
First, if I add the control panel to the side of the form, it just overlays the MDI portion of the form and the children will spawn behind it. I can more or less manage the positions of these children, but the problem comes when I want to minimize the children, they minimize behind the control panel and I don't know how to move them. So I need to shrink the area they can move around in. I've read in places that you can use the splitter object, but that never seems to cooperate with me and only wants to move to the extreme left or right of the parent form. How can I reduce the area the children get to interact with? I've tried creating a MDI Panel, but VS has a fit with that.
Second, I've got a datagridview holding the data that will spawn the child forms. This is working well, but even though I've set the rows to be not resizeable, I can still make them grow or shrink during run-time (not programmatically). How do I stop this?
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Aug 13, 2009
Is it possible to capture a panel and save it as an image?
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Jun 6, 2009
I need to center the red panel in the middle of the dark grey panel, when you resize the form the red panel should be in the middle, and the red panel can't be resize, anyone have a code or property to do this?
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Feb 24, 2009
I got a PictureBox Control with a BackgroundImage. Related to the active Image I will show the next image by manipulating the name-string. But how to get the name of the actual shown image? All my images stored under ressources.Following wont work:PB.BackgroundImage.ToString it will give: "System.Drawing.Bitmap"
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Feb 20, 2009
Can i set an image as a backgroundimage for a treeview control?
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Oct 10, 2010
I am writing a simulator for a complex technical system. I have created a custom control which inherits from the Button control. My project requires around 100 of these buttons, which function identically except for one difference. The background image cycles between 4 different images, (depending upon whether the button is pressed and/or the state of a Fault parameter), and this group of 4 images is different for many of the buttons. So when I drag a new control onto the form, I'd like to be able to specify which group of 4 images to use for this button.
Currently I'm using this syntax:
if not IsFault and isOn then
MyBase.BackgroundImage = My.Resources.FaultOnButton01
...
But this means I have to change each image in the code for each individual button. To simplify matters I though of using the Tag attribute. That way the class code can select the images by a process like this:
if not IsFault and isOn then
Mybase.BackgroundImage=My.Resources. + mybase.Tag + "01"
Obviously this syntax won't work, so my question is: How can I pass a built-up string value to the MyBase.BackgroundImage?
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Oct 26, 2011
Can the background image in a picture box be moved, or located some where else, not the top left corner?I am aware of the layout that can be changed but that is not what I am after.
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Mar 19, 2012
The code;
Private Sub PictureBox3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox3.Click
If user.Right > PictureBox3.Left Then
PictureBox3.BackgroundImage = (My.Resources.dooropen)
End If
End sub
Will not work as it should, when my player (rectangleshape) right is more than the picturebox.left it will not update the picture of the picturebox.
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Jun 11, 2009
I'll explain this briefly as I need to be sure pretty quickly... basically, I'm developing a game. after the user gets 5 points, an alert box comes up saying "proceed to next level"... on the next (second level) I want the background image to change....
Now the default background is not a picturebox, it's actually part of System.Drawing.Bitmap I am using the same form throughout the entire game, so when it says "Proceed to next level" the game stays on the same form... Here's my Select Case statement to tell it to change the background image:
[Code]...
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Mar 18, 2012
I am using images imported into My.Resources as images for items in my game. Now for the saving procedure I use pnl.BackgroundImage.ToString but that returns System.Drawing.Image. What I'd like to know is how to retrieve the name of the resources object that is the image of the panel.
[code].....
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Dec 20, 2010
A tabcontrol's backgroundimage caused severe flicker problems when resizing a windows form. By setting that property to NONE at designtime and that adding it at the very end of the processing pipeline & after the window had been maximized, the flicker problem on initial form load was solved.
HOWEVER, now when a tabpage resize event is fired, I would like to remove that image at the beginning of the resize and add it back to the tabpage at the end of the resize event. The following code however does NOT work. I get an error in the resize event, Property cannot be found.
Private Sub Form1_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
TabPage.BackgroundImage = My.Resources.GraphicallyIntenseImageToDraw
[Code]....
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Aug 18, 2009
Why when ever i set my form to righttoleft layout to True i lose my background image?
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Feb 23, 2010
i have a form1 and a button1 i want to when i press the button1 ,the recent backgroundimage 'ex.png' changes to be 'ex1.png' what is the code ?
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May 26, 2011
I am using VS2010 VB.net and I am having issues with what would normally apear to be straight forward in VB6... I am looking at a control that will alternate its backgroundimage between two images, I wish to check which image is currently loaded to the control and change it to the alternative image.
If A1RectangleShape.BackgroundImage = my.resource.Image1 then
A1RectangleShape.BackgroundImage = my.resource.Image2
else[code]....
This only yields the type of image thats assigned to the control "System.Drawing.Bitmap" how to return the backgroundimage file name thats been assigned to the control at runtime, IE Image1 or Image2.
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Dec 5, 2011
defauld the usercontrol create(when is used) the backgroundimage property, but these property can be blocked? i'm asking these, because i need the entire control in that property
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Mar 19, 2009
I'm from Holland (The Netherlands) and new to this forum, I'm not 100% sure if I'm posting this thread in the correct subforum... I don't I have a little experience in Visual Basic .NET 2008 Currently I'm developing a program for my job in which you can follow a checklist for doing a certain procedure. With every step you have to click a checkbox and so on. It's saved in an XLS-file and blahblah, all irrelevant for my question.
I've got to the point that I'm almost pulling my hair here, because everything went fine so far with coding my program, but this simple thing I can't solve What I'm trying to do is, change the BackgroundImage of a Button when you click on it. If it is Image1 at the time of clicking it should change to Image2, and vice versa.
[Code]...
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