VS 2008 Clear A Rectangle Drawn?
Aug 25, 2009So; I've drawn this rectangle vb Dim zr As New Rectangle(100, 100, 100, 100)e.Graphics.DrawRectangle(Pens.Red, zr)
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Restore The Background Behind A Drawn Rectangle?
Apr 14, 2012In my application I need to draw several filled rectangles on a panel with a tiled background image. Depending on user actions, certain - not all - rectangles must be removed afterwards, revealing the background image again. Drawing and filling the rectangles is not so difficult, but how can I remove them in such a way that the background gets restored correctly?
View 2 RepliesAllow User To Resize Drawn Rectangle By Dragging Border?
Feb 24, 2009I want to write a vb program to allow user to draw rectangle. User can click on a point as starting position and drag on the screen. A rectangle is drawn with the current mouse position and the starting position. The user then release the mouse as end position. When the rectangle is drawn, user can resize the rectangle by drag the border of the rectangle.
View 2 RepliesRectangle Drawn On Picturebox Gets Erased When Scroll Image?
Apr 1, 2010rectangle drawn on picturebox gets erased when i scroll image.i.e
i have made application for image cropping. on mouse down and mouse up event, an rectangle is drawn on picturebox using graphics.
1) now the problem is that when scroll image rectangle drawn on picturebox gets erased.
2)now i want resize this rectangle as per user's interest
how to resize the rectangle and drag the rectangle on picture box.
Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 1 RepliesClear Lines Which Previosly Drawn?
Jun 4, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 3 RepliesForms :: Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 3 RepliesAke Image Under Rectangle To Be Clear And Outside Area Translucent?
Mar 27, 2011I am currently working on image cropping software. Any idea how to make image under rectangle to be clear and outside area translucent?
View 5 RepliesHow To Clear Drawn Text Before Drawing A New Text
Dec 1, 2010I'm looking to see if a little more control is possible though. cpustring = string and fontstring = font, both defined earlier in the program.I'm not sure how to clear the drawn text before drawing a new text. I tried with g.clear(color.transparent), but that creates an ugly flickering background for the picturebox (the picturebox is already set to transparent background).I'd also like to be able to fit the text in the picturebox area, max width/height as defined by picturebox, not by fontsize. Font can stretch either way as long as it fills in the picturebox.
View 6 RepliesList(of Rectangle), Rectangle.offset(x,y) Doesn't Work?
Jul 26, 2010i've got a little problem with List(on T) variables.
[code]...
It works perfectly fine. Does anyone know what the problem is?
VS 2008 Creating An Owner Drawn Datetimepicker
Oct 24, 2010how would i go about creating an ownerdrawn dtp, with highlighted dates in the dropdown + also in the collapsed view when a highlighted date is selected? i'm guessing i'd have to inherit a dtp + then handle an event or 2. does anyone have any insight or experience with this?
View 2 RepliesVS 2008 Drag And Drop Drawn Letters?
Sep 11, 20091) Draw three letter's 'P' 'B' & 'C' on a form (at a later date mutiples of each wil be added)
2) to be able to drag them anywhere on the form
3) to be able to lassoo them and drag them all at the same time.
For the moment the third option isn't important just as long as l can drag the letters.
VS 2008 Owner Drawn Combobox The Border?
Jan 26, 2011Ok so i have an owner drawn combobox and everything is fine in the drawitem event,except i'm a perfectionist and there is no border i have a beige backcolor, and i really just want a black border or something first i tried to draw using the given graphics and the given bounds, it failed as the rectangle was drawn oddly inside the combobox for some reason (not on the inner border, almost in the center of the combobox.then i tried the following and was surprised when it didnt work
Dim z2fx As Graphics = Graphics.FromHwnd(cmbBox.Handle)
z2fx.DrawRectangle(Pens.Black, New Rectangle(0, 0, cmbBox.Width, cmbBox.Height))
then i tried this and thought for sure it would work
1 Dim zfx As Graphics = Graphics.FromHwnd(cmbBox.Parent.Handle)
zfx.DrawRectangle(Pens.Black, cmbBox.Bounds)
this drew 2 sides of the border, the bottom and the right then i realized something: the code i used earlier with z2fx made the upper and left borders flicker right when i click the drop down, then it goes away. It is as if they were being redrawn with the background color of the combobox. And this redrawing was taking place after the drawitem event was called.
Something, some event, keeps redrawing the background color of the combobox when i put a button on the form and associate it with the zfx2 code, then when i press this button the combobox draws the 2 borders (upper and left) and they stay drawn until i either hover over the combobox or open the drop down of the combobox.
nvm while typing this i figured out a solution i can use the mouseenter mouseleave and dropdown events
since i typed this already im posting it anyway if i have problems i will let you know.EDIT: failed.SOMETHING keeps redrawing the damn background only after most events have passed! i tried the backgroundcolorchanged event it didnt work. this is annoying.
VS 2008 Saving Lines Drawn In Pictureboxes
Aug 21, 2010On my form, I have a picture box that starts off blank, but draws lines according to mouse click events.
I am now trying to test whether there is colour in individual pixels, yet I am yet to find solid code.
My initial code was along the lines of
Dim bitm as bitmap
bitm = PictureBox1.Image
This would come up with nothing, as there wasn't any image assigned to the picture box.
I was wondering how I could save the lines drawn and use that as a bitmap to test pixel colour.
VS 2008 Why Aren't Controls Drawn Transparently
Jun 3, 2010If you make a Control's BackgroundColor Transparent and put it in front of another control, the other control doesn't show through. Why not? GDI+ makes this easy, doesn't it? Why don't Windows Forms use it?
View 10 RepliesIdentify Subtriangle Within A Rectangle Given A Coordinate In That Rectangle?
Feb 22, 2010Given a rectangle of width w and height h. and a coordinate x,y in that rectangle I would like to identify which triangle I am within.
i.e. the function should take parameters(x,y) and return a,b,c,d or a zero based number representing that triangle index i.e. (0=A,1=B,2=C,3=D) if they are in that order.
I think this would be something like >= the formula of the red line and >= the formula of the green line?
I'd like to implement this in VB.NET
VS 2008 Creating A User-drawn Listbox Class?
Aug 1, 2009having trouble trying to add different items to the listbox. What happens is that the item that's in the listbox gets redrawn every time I try to add new item, why is that?
vb.net
Public Class ColoredListBox
Inherits System.Windows.Forms.ListBox
[code]....
VS 2008 Hide Images Drawn In A Picturebox By E.graphics?
Dec 25, 2009I 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].....
[2008] Custom Icon In Owner-drawn ListView
Feb 1, 2009I created an image (.png) with a transparent background and I'm trying to show it in a ListView. So I added the image to the ImageList belonging to the ListView, however when drawn, there is a partial white circle around the image. I checked and rechecked the actual image and there are absolutely NO white pixels at those positions.
[Code]...
VS 2008 Create An Owner Drawn TabControl That Looks Like The Tabs In Visual Studio On XP?
Jul 8, 2009I'm trying to create an owner drawn TabControl that looks like the tabs in Visual Studio on XP (might look different in Vista, not so sure).So far, I've got the background and the blueish border, and now I've run into some trouble drawing the 'tab headers' (where the text is displayed).Here's what I got so far:
vb.net
Imports System.Drawing.Drawing2D
Public Class cTabControl
#Region " Colors "
[code]....
Why isn't this working? How do I draw a border like this around a 'normal' OwnerDrawn tabcontrol, without the funky SetStyle method..?also, the DoubleBuffer ControlStyle (in the SetStyles method) option is not listed in the Intellisense list, but it is accepted when I finish typing it... Is that a bug?
Draw Rectangle Divided To Four Rectangle?
Dec 3, 2011This 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)
Drawing Rectangle Inside Another Rectangle?
Jul 26, 2009I'M creating a kind of photo viewer, and I cannot figure out how to orient the scroll buttons with the photos I want to draw because they all are different sizes.This is really hard to explain so please ask questions if you don't understand.I'M thinking if i could draw every photo on a single rectangle and then the scroll bars will position that rectangle up or down. but is there a way to make a rectangle inside another one so it only shows inside that rectangle?
View 10 RepliesVS 2008 MSChart - Chart Area Axis's Aren't Drawn When No Data Plotted
Apr 2, 2009MS released the new MSChart for .net 3.5 sp1. I'm trying to get the hang of it in VS2008. One big issue I have is that if I have no data plotted the chart area axis's aren't drawn. Does anyone know a way around that? That seems like a pretty basic/common issue.
View 6 RepliesVS 2008 How To Dispose A Rectangle
Dec 6, 2009Let's say I have a rectangle that has been defined like the following :
Dim rectA as Rectangle
rectA = New Rectangle(0, 0, 100, 600)
When I want to dispose it what do I do.
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VS 2008 - Text Changes But Rectangle Not Moving
Dec 2, 2009I have this
Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
lblText.Text = rectangle1.X
If e.KeyCode = Keys.Right Then
rectangle1.X = rectangle1.X + 5
[Code] .....
And the text changes but the ractangle doesn't move... What can I do?
VS 2008 : DrawString Within Bounds Of Rectangle?
Sep 21, 2010I have this code where I'm wanting to draw text inside a defined rectangle and if it's too wide I want it to be slit onto multiple lines and if it's too tall, I was it to only paint what it can which right now it's not cutting it off it continues on below the bottom border. Here's my
Dim NotesRect As New RectangleF(mMargins.Left + LeftIndent, m_PagePositionSingle, mMargins.Right, mMargins.Bottom)
e.Graphics.DrawString(NotesString, m_ItemFont, Brushes.Black, NotesRect, New StringFormat(StringFormatFlags.FitBlackBox Or StringFormatFlags.LineLimit))
VS 2008 Loop Powerpacks Rectangle
Mar 15, 2010I have a number of rectangles using powerpacks 3.0 named r1, r2 etc. how to loop through these?
View 2 RepliesVS 2008 Take Screen Shot In A Rectangle?
Jul 21, 2009Does anyone know how to take screen shot in a rectangle? And save it as a bitmap?
View 2 RepliesCreate A CLEAR BUTTON Loop To Clear All Textboxes?
Dec 13, 2011this is currently my code to clear my 5 textboxes
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
TextBox1.Clear()
TextBox2.Clear()
TextBox3.Clear()
TextBox4.Clear()
TextBox5.Clear()
End Sub
VS 2008 : Can't Save Rectangle Type Within A Structure
Apr 29, 2010Im trying to save a structure that consists of regular variables, some of my own structures and rectangles. Now while all the other data types get saved/loaded nicely the rect information is lost, why is that?
save sub:
Dim ForSaving As SaveDat
Dim file_num As Integer = FreeFile()
ForSaving.OVIRect = ESpec.OVIRect
[code]....