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?
View 4 Replies
When I add or modify controls on the form the graphics are redrawn many times over.The more graphics that are drawn the slower the machine gets.
View 1 RepliesI have multiple picturebox controls in my form. Both of them contain an image with a transparent background. I want them to be on top of each other. I've already set their BackColor property to Transparent, but when I place one on top of the other one, the following happens: [URL]. How can I make them transparent while they are on top of each other?
View 4 Replieswhen 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?
View 1 RepliesIn 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]
View 2 RepliesI've dynamically added 20 pictureboxes to a panel and would like to see the panel scroll when I use the mouse wheel. To implement this I have tried to set the autoscroll to true on the panel control. Here is the code.
For i As Integer = 1 To 20:
Dim b As New PictureBox()
b.Image = Nothing
[Code]....
It works for "button" control, but not for the "picturebox" or "label" controls?
How can I implementthe scrolling affect using 'mousewheel'?
When my main form loads it also shows two other forms and has them scroll down from the upper right corner of the screen.
Here's the code for one of them:
Me.Visible = True
Dim x As Integer
Dim y As Integer
[Code].....
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()
View 10 RepliesHow 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]...
I have a htpc project that I am working on. The main program loads dlls which are basically other win forms. On each of these forms, including the main program, I use a picturebox (double buffered picturebox) for the background image and then draw everything on it by hand. Whenever I go from the main program to the dll, I get a weird flicker. It looks like it is the previously used double buffer. Is there any way to clear the background double buffer before the flicker?
View 3 RepliesI have a picture box created in the parent form.But whenever i call a child form, the picture box will be at the top and cover the child form.I try with SendToBack and then it is completely hidden at back ofthe parent form.
View 3 RepliesIn 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?
View 4 Replies1. What determines that some controls cannot be added to the form? (I tried several, not all of them)
2. Where does the image for Column 1 About form come from?
How to draw a bitmap in a picturebox based on coordinates of the bitmap inside the picturebox not the form
View 3 RepliesI am trying to draw a rectangle in a PictureBox (100 x 50)
Using gr As System.Drawing.Graphics = Picbox.CreateGraphics
Dim rect As New System.Drawing.Rectangle(10, 10, 80, 30)
gr.DrawRectangle(Drawing.Pens.Blue, rect)
End Using
From looking at the examples in my book, I "think" it should work, but alas, tis not working - nothing is drawn.
draw an image in my picturebox. Is it possible to give it an opacity attribute? I have been looking at the other versions of DrawImage but couldn't find such thing!
View 2 Repliestrying to Draw an image to a picturebox using DrawImage(image,0,0, picturebox.width, picturebox.height).I know I have to use the PAINT argument but still having a little problem getting it to work.how to start the code?
View 5 RepliesI have a picturebox on my form and I have added a references picture file into my project.
I need to code the Onpaint event handler for the picturebox so that it causes the picture (that i have added) to be drawn but using the picturebox Graphics object.[code]...
I am trying to write a graphing program that will draw on/in a picturebox during the form_load event. It works if I connect the code to a button event and click the button but the exact same code in the form_load event seems to do nothing. I've tried calling cmdDraw.PerformClick() and cmdDraw_Click() and although the Draw button works when I physically click the button with the mouse, nothing seems to happen when these functions are called during the form_load.
[Code]...
I'm making the transition from VB6 to VB2008 and I'm having difficulty finding the equivalent to[code]...
It seems in VB2008 I can only use pens inside a picturebox1_onpaint() subroutine, I can't tell a picturebox what to do from a button_click subroutine or form_load subroutine first and then send the results to a picturebox. I have no control over when the graphics are drawn and from which subroutine. How do I solve this in VB2008 ?
How can i draw a rectangle in picturebox using coordinate(X , Y) and size of rectangle from textbox?
View 7 RepliesIn my application there's a PictureBox with a drawing inside. I implemented a zoom function that works in the following way:
- The user clicks somewhere in the PictureBox, and holds the button down. The program stores the cursor position.
- The user moves the mouse, while still holding the button down. The program draws a rectangle between the original and the current cursor position.
- The user moves the mouse further, while still holding the button down. The program deletes the last rectangle, and draws a new rectangle between the original and the current cursor position.
- The user releases the button. The program deletes the last rectangle, and executes the zooming based on the original and the current cursor position.
My problem is that I could only delete the rectangles by drawing same-sized, background-colored rectangles on top of them. But this also deleting the original drawing inside the PictureBox. Is there a way to draw "removable" rectangles?
I have a simple picturebox, line drawing procedure (call it "DrawTheLine"), which fires ok when I call it from a command button. But when I try to call it from the boot form_load procedure it doesn't work; no lines draw. No errors are raised.
Things I've thought of are:
1. The form_load procedure is not done creating all of the controls on the form, so it can't work with them yet. Doesn't make sense because my drawing call is the last thing in the form_load procedure, and it executes, but the picturebox does not show the lines.
2. Tried Application.DoEvents, but no go.
3. Tried using picturebox.invalidate to force a paint event and "called" the drawing procedure that way, with the appropriate arguments. Again, the procedure "DrawTheLine" fires, but no lines draw to the picturebox.
need to draw text (already writen) but the promblem is i need to save it after i wrote it as a .jpg i got the save feature complete but the text doesnt show up what do i need 2 change or do?
View 1 RepliesThis code is used to demonstrate drawing a blue border around a picture box...(I've numbered the lines so I can refer to them below
1 Dim objGraphics As Graphics
2 objGraphics = Me.CreateGraphics
3 objGraphics.Clear(SystemColors.Control)
[code]....
Regarding line 1, the author says, "To instantiate an object in code, you create a variable that holds a reference to an instantiated object".!Regarding line 2, he says "the CreateGraphics method is pretty complicated, but for now, just know that it instantiates a new object that represents the client area of the current form".So now I have two new instances, the one from line 1 - an instance of a graphics object, and this one from line 2 representing the client area of the form.The rest of it is pretty clear; But Why can't I draw the rectangle around the picturebox itself? Why do I have to draw it around the "instance" of the picture box?
How would I Pre-Draw/Pre-Rendering Controls on a form before it appears? Is this possible??
View 10 RepliesI'm trying to add picture boxes on my form for a connect 4 game. I'm trying to make the grid and use a loop to do so. This is the code I have so far, trying to make it a subroutine I can just call on my form_load.
'create picture boxes for game board
Private Sub pb()
Dim i, j As Int16
Dim space As Int16 = 5
For i = 0 To 3
[Code]...
Add scrollbars to picturebox or form when it becomes too big?
View 6 RepliesI finished making a top view shooter game that shows the whole map from above. The map is kind of big so the characters that move around are kind of small. Is there anyway to zoom in on the main character (a picture box), but still keep all the original properties of the form?
View 1 RepliesI want to move a picturebox in my form.[code]I get an error saying: Cross-thread operation not valid: Control 'PictureBox1' accessed from a thread other than the thread it was created on.
View 4 Replies
