My picture box is in a panel. How to prevent lines created using graphics tool from getting erase when moving the picture box around? Sometimes when I minimize my form, the lines goes missing also.. How do I make the lines stay on the picture box?
Example shown below in a gif...
There's this form with many random lines connected to one another using
Me.CreateGraphics.DrawLines(Pens.Black, pointsArray)
There's also a Picturebox that can be moved using the arrow keys...
I want a messagebox to show when the picturebox overlaps/intersects with the lines.
How can I do this?
i am making a program with graphics and im using a picturebox for a button. The image inside picturebox is transparent .gif. The problem is that i don't know how to make picturebox transparent. I searched the internet but all exaples didn't work. Does someone know how to fix this problem?
View 4 RepliesHow can I make a form stay above a game? Something like a D3D/OpenGL game
View 12 Replieswho do i make the second Column on the list view box to all ways stay right
my code
ListView1.Columns.Add("The Path Of The File", 800, HorizontalAlignment.Left)
ListView1.Columns.Add("Size", 80, HorizontalAlignment.Left)
I want to make a Tool Bar in my task bar such as windows media player tool bar.
I'm using VS2005.net Windows xp Professional Edition.
I have an application that has a list of point and I can choose a tool and draw one image to different locations then remove them if I wish, and when I finish editing those images, I can then pick another tool . The images are supposed to go away that were drawn by e.graphics but they only do when I click in the picturebox. How can I hide the images or delete them from graphics when I choose another imageHere's the paint event alone
vb
Private Sub MapGrid_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MapGrid.Paint
[code].....
I have a program for school project that has input fields for Name, Address, City, State and Zip. I need to error check so that the fields are not empty.I have used If statements that check to see if the fields are empty and shows a message box if they are but if I leave the whole form empty and click the button that activates it, all the if statements go- one by one instead of pausing for the user to input the required data.How do I check for data and make the program stay there until the data is input? I have tried TRY/CATCH but it won't catch this type of error.
this is the
'This program computes customer's bills at the pizza shop for all combinations of
'crusts, toppings, sizes and discounts
Option Strict On
Public Class PizzaForm
[code].....
I copied across all the code and got it going, but when I copied across the tool strip menu it came up with a Red X, where on the old project it was displaying fine. I removed the copied tool strip and dragged a new one onto the form, but even a brand new one with no modification comes up with a Red X. I tried a couple of the suggestions I could find on the internet, but none of them seemed to make any difference.
I tired stepping through the code (F8) but it does go anywhere near any tool strip code. I added a New Sub complete with InitializeComponents, but when it gets to initialise it goes yellow and then next step goes to End Sub. I though in previous projects it went to another class and setup the components on the form. Just got home and thought I would throw a button on the form to see if it would display that and it does.
I want to draw string in multiple lines and and I want to know how many lines given string will take. I am using following method.
[Code]...
I'm trying to figure out how to make dragable controls like the ones in paint.net. see the attachment. they look like forms kind of because they have the red x at the top like a form does, but it kind of looks like a custom control too. Is it possible to make these types of controls in VB.Net 2008.
View 2 Repliesim looking for code that will let me keep a form on top with in my application, Like form2.vb will stay on top of my form1.vb, How can i do this i searched the forum and could not find what i was looking for.
View 1 RepliesHow can I make a button once i click it to stay latched and if i click it again it will drop then if i cleck it again it will latch and so on?
View 2 RepliesHo can you make a dynamic label stay right justified, so that when the label.text is filled the text starts at the right edge of the label and fills to the left? Currently the text fills to the right from the left edge of the labels location and tends to run off the form.
View 1 RepliesThis may be a common problem but I'm struggling to find a solution that will fix it
I have a modal popup I am displaying with jQuery, this popup contains a list of Checkboxes and a Button, the code looks like:
<div id="dialog" title="Notify Users" >
<div style="width:100%; height:500px; overflow:auto;">
<asp:CheckBoxList ID="chkNotify"
[Code].....
I have tried moving the CheckBoxList to just inside the form tag so that no other styles can be applied and nothing should affect it however I still get the same issue.
How can i make a program stay above the task bar even when it loses focus with visual basic 2008?
View 1 RepliesWhen I tried to resize the form, the textboxes and buttons stayed on the top left. I would like to know if there is a way to make them stay in the center whenever the form is resized or maximized? I have tried using anchor but the buttons and textboxes ended up getting stretched.
ps: the area highlighted in green represents the size of the original form. Red arrow represents how I resized the form.
Well, in IE at the bottom right, the gray 5 fot looking things help you resize it down there, and stay there even after you maximize the window. When I make a form on VB and all, then maximize the window, it disappears on mine, but stays there every other time, except for while maximized, IE does it, so how do I make my program do it so it will stay there even when maximized? I have tried lengthy work-arounds and such, cause if its at correct size and location, and you maximize it stays, but I cant seem to find out when u maximize to over-ride it, so it'll work right.
View 1 RepliesI have a character that I made in graphics and when an enemy attacks the character, I want it to flicker, how would I do this?
View 2 RepliesI am trying to find information on code to make the lines of a jpg file that have been loaded into a VB.NET WebBrowser control into selectable objects.
I have no idea what to search for or the correct terminology.
This is very similar to using the line tool in word or excel, after you draw a line you are able to select it.
Why is it that I can't seem to make a picturebox transparent? I just can't seem to figure it out, I set the back color to transparent, I even made a color in my image transparent but still no results. I've been able to make the back transparent before.
View 1 RepliesI look at hundreds of VB.Net user interfaces through the internet and they all look horribly unsophisticated from a graphics point-of-view.Compare this to the backgrounds seen on tv broadcast that use blurred line gradients to create graphics that have some interesting appeal and draw the eye to them (at least my eye).I've attached some sample screenshot grabs below that I have annotated with magenta rects showing the interesting sections.What types of graphics routines can produce these types of graphic effects? The options that I have identified so far:
1.) More carefully done line smearing (see below..)
2.) Line drawing with a VB.Net version of the "Bresenham's line drawing algorithm"(as passel mentions in this post) (that might allow a specialized set anti-aliasing routines - like a wu algorithm).
3.) Line drawing with some Gaussian blurring as seen in the attachment to this post from my Perlin Noise thread.
4.) Possibly a gradient shaped by a vector GraphicsPath?
5.) Some other VB.Net gradient generating method?Possible the use of multiple passes with an alphafade brush?
6.) Last resort: manipulating the colors of individual pixels with lockbits marshal copying (highly undesirable).
I've done a fairly complete survey of whats out there on the internet for VB.Net samples for drawing lines to see if any of them combined line drawing with gradient effects and found very little.I played around with some code I found that did line drawing through mouse dragging and managed to achieve what I call the "line smearing" effect.I've attached my Line_Smearing_Demo below..As yet I have been unable to combine lines with shaped bezier curves,to produce Guilloche/Lissajous/complex Spirograph patterns like those seen on this page.
How Can I make a PictureBox follow my mouse when a MouseDown happens? When I click the left button of the mouse on the picture I want it to move with the mouse until the MouseUp.
View 2 RepliesI'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 ?
I've looked and tried.. and for some reason just don't seem to be getting right now.
I have a picturebox that is 250x500, I want to draw a vertical line from the top to the bottom.
Using gs = pbMap.CreateGraphics
'Do While x.X < 250
'gs.DrawLine(Pens.Red, x, y)
[Code].....
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.
I 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'm working on a program that will generate and graph random parabolas with integer vertices. I've got a 360n x360 pictureBox set up and used a for-next loop to draw in a grid consisting of 15 x 15 squares. when I plot the generated parabola I get some unwanted lines/curves. I think this is due to the fact that the (0, 0) point of the picturebox is in the upper left corner and the (0, 0) of my grid is in the center of the picturebox. Is there a way to "move" or "set" the pen position to the first point I wish to plot for my parabola without leaving a mark or trail? Or is there something else I can do? I've tried drawing an invisible line before my g.DrawCurve(plotPen point) but when the DrawCurve is executed I still get an extra line.
Private Sub cmdParabola_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdParabola.Click
Dim x, xPlot, y, yPlot As Single
[Code].....
I need to display various shapes in a picture box, and am trying to do so via a combobox that the user can select from. My problem is clearing a previous selection when a new selection is made.
Code to date is:
Public Class frmGraphics1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Populate cboShape with shapes
cboShape.Items.Add("Select a shape")
[Code] .....
I have a program where I use a picture box (pAudiogram) to display a template. Then I use Graphics (myLine) to plot things on this picture box. Some example code is below:
Dim myBluePen As New Pen(Color.Blue) : myBluePen.Width = 2
Dim myRedPen As New Pen(Color.Red) : myRedPen.Width = 2
Dim myLine As Graphics = pAudiogram.CreateGraphics
[code].....