I have a form that uses a button to draw a line and a second button to draw a rectangle. I have a third button to clear the form but can't find a code example to code the Clear button.
View 4 Replies
I have a form in which I draw a rectangle and a line depending on the button click. I basically want a dynamic line/ rectangle that moves when the mouse is clicked on another point on the picturebox. I found some code online for a rectangle, and I'm trying to extend it to draw a line too, but i'm having some issues. The line is not displayed when the mouse is lifted(mouse up event).
Here's my code:
Public Class Form1
Dim selection As Rectangle = Nothing
Dim m_Drawing As Boolean = False
Dim m_Start As Point
Dim square_click As Boolean = False
[Code] ......
I have a button with flat appearance and with border size=0.I want to draw lines on the top of the button, but it doesn't work. Why?
Public Class gomb
Inherits Windows.Forms.Button
Const hatterszin = 11395569
Const vonalszin = 5924448
Dim pen As Pen
[Code]...
This code is to draw a circle in the form with one button in vb.net. Dim g as system.drawing.graphics
g=me.creategraphics
dim p as new system.drawing.pent(system.drawing.color.Blueviolet)
g.drawellipse(p,150,100,30,60)
end sub
this is not working it is showing the error in the declaration of p any one can help me out to rectify this error
I'm on page 243 of "Sam's Teach Yourself Visual Basic 2008" and it says: * Display the ViewerForm form in the Form Designer * Double-click on the Draw Border button on the toolbar. Only -- I don't see a Draw Border button on the toolbar.
View 7 RepliesFirstly I am using Vb 2008 Express Edition.I have the following code:
Code:
Private Sub PictureBox1_Paint(ByVal sender As Object, ByVal e _
As System.Windows.Forms.PaintEventArgs) Handles PictureBox1.Paint
Dim x1 As Integer = 0
Dim x2 As Integer = 50
[code]....
When I run the above code it works , no problem. But I want to trigger it only on my Button_click event.
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
End Sub
I don't know how to call the PictureBox1_Paint into my Button1_Click
I'm creating new buttons at runtime that I need to draw on. I have 4 different and I need to draw different shapes on them. I've started with the "rectangle button" and I've approached this
[Code]...
This code is to draw rectangle. How can I draw rectangle divided to four rectangle or more
e.Graphics.DrawRectangle(Pens.Coral, 50, 200, 30, 40)
1. I see some programs like babylon 9 that they create a Caption button with custom image.How to do that?
2. How to draw on caption bar on Vista and Xp ? It' not important for me the language,I know both VB and C#.
Ok..I think it's very simple but I'm still a begineerI'll try to make it clear I need to draw a rectangle when I click on the button..what is the required code?
Quote:
Public Class Form1
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
[code].....
is this possible to draw a red rectangle about a text box? How?
View 4 RepliesI have a datagridview in my application. and I have created a function for searching different words in datagridview. When the functionfind the word in one cell of datagridview, the cell is selected, but I want to draw a red rectangle in the selected cell when I found the searched value.
I have made my application in visual basic.
I 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.
Public Class Form1
Private opsets As New List(Of OpSet)
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
opsets.Add(New OpSet(Me, 100, 300))
[code]....
User launches the application, enters width of circle, then enters width and height of rectangle and presses the button. Then app draws the circle with rectangle inside of it (if it fits). App should output the coordinates x1;y1 , x1;y2 , x2;y1 , x2;y2 (corners of rectangle) somewhere on form and would be great if it could post those coordinates on x and y axes (optional).
View 23 RepliesHow can i draw a rectangle in picturebox using coordinate(X , Y) and size of rectangle from textbox?
View 7 RepliesDraw rectangle outside of form?[url]...
View 1 Repliesi've found this code on the web that allow me to draw a rectangle and keep the Image inside this. But there is a way to make draw this rectangle in all the direction and not only from left to right and top to bottom?
Public Class frmSS
Private Declare Auto Function BitBlt Lib "gdi32.dll" ( _
ByVal hdcDest As IntPtr, _
[code]......
This 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?
Since using the DrawArc function in GDI+ isn't very accurate when drawing a small rounded rectangle, I am using RoundRect instead.
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
Dim hDC As IntPtr = e.Graphics.GetHdc
Dim rc As New Rectangle(10, 10, 64, 24)[code].....
This will draw a nice rounded rectangle, but it will also fill it with a white brush, erasing what I don't want to have erased.How can I draw this without erasing the inside of the rectangle?
I have drawn a diagram of lines on a panel using the g.DrawLine command. I want to be able to zoom in to the diagram and define the zoom area by two cursor picks. I get the coordinates of the picks and draw a rectangle using g.DrawRectangle. This works fine but as I move the cursor around, the rectangle becomes solid black (with all the DrawRectangle commands). In VB6 I used a rectangular shape on top of my diagram but you cannot do this in VB2008. I need something like drawing in XOR mode. Somehow as I move the cursor I need to undraw the old rectangle and draw the new rectangle.
View 11 Replieshow to draw and resize by selecting a rectangle in winformsby using power pack tools or graphics.drawrectangle() method
View 1 RepliesIn order to draw a text over a ComboBox (or whatever else), I override WndProc() and catch 0x000F message -- which is WM_PAINT.Code is like the following:
Protected Overrides Sub WndProc(ByRef m As Message)
MyBase.WndProc(m)
If m.Msg = &HF Then[code].....
It works very well, but there is a problem: if I drag parent window on a side of the screen (in order to hide a part of the window form), the visible part of my control is infinitely redrawn. This makes the text redrawn over itself. I suppose there is a way to draw only invalidated (hidden) part of the control. How can I do?
EDIT:Here is the problem in one picture: http:[url].....(it's a link since I can't post image for now.)
UPDATE: I tried using BeginPaint API, but the RECT structure included in the returned PAINTSTRUCT structure contains only zeros.
If m.Msg = WM_PAINT Then
Dim ps As PAINTSTRUCT = New PAINTSTRUCT
BeginPaint(Handle, ps)[code].....
Can I do something with that? I don't know how to proceed, in order to paint only invalidated area.
I'm using e.graphics in the Me.Paint event to draw a string in the form. There is a rectangle shape with gradient in the form, and the string is supposed to be drawn on top of the rectangle shape. However, when I run the program, the string is drawn under the rectangle shape, and is therefore invisible... How do I fix this?
View 2 RepliesHow to draw Rectangle in Print Preview Dialog I have used Graphic Class For it but it is not working my code is following
[Code]...
It is drawing Rectangle and Line on other Controls but not on Print Preview Dialog
I want to Draw an Rectangle on a PictureBox and after that I must be able to move this Rectangle around. I have made now that I can draw a Rectangle on a Picturebox via MouseDown and MouseMove Events, but I dont know how to Move the Rectangle.
Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseDown
Try
If e.Button = MouseButtons.Left Then
cropX = e.X
cropY = e.Y
[Code] .....
i am making application for image cropping. where in this application i want to draw transparent rectangle on picture box.eg> you must have uploaded photo on orkut , when u upload the photo if photo is too big croping windows comes up and tranparent rectangle with resizable appears on image.similarly i want resizable rectangle on my picturebox where user can resize the rectangle and then user press crop button it crops off that much part.my question
1) how to draw transparent rectangle on picturebox
2) how to resize it.
How to do it?
View 8 RepliesI am wondering if there is any code guide to teach me how to enable the user to draw as many buttons as possible on the windows form and be able to move and resize the buttons on the GUI and also tie the buttons to the timer to toggle the button colour when ever a condition is true
View 5 Replieshow can I draw a rectangle around the listbox's selected item? Something like the default windows focus rectangle.
I know I have to draw a custom ListBox, I have already done everything but this... This is what I'm trying, but it doesn't work
vb.net
If ColoredListBox.SelectedItem <> Nothing Then
Dim pos As Point = Me.PointToClient(Control.MousePosition)
e.Graphics.DrawRectangle(Pens.Red, pos.X, pos.Y, 259, 12)
End If
Is it possible to get the bounds of the selected item?
