Center A Cursor At The Top Of A Line In Freehand Painting?
May 27, 2012
How to center a cursor at the top of a line in freehand painting. I made a freehand painting program in Visual Basic 2010, I used m_Graphics.FillEllipse(brush1, e.X, e.Y, 40, 40) for painting a broad line. It works.. But.. the cusor is not centered on the front of the broad line. He is at the Left Top of the rectangle that describes the FillEllipse. How can I make the cursor to stay in the middle of the front , while moving around, so that I can more precise paint with him ?
[Code]...
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Apr 12, 2012
I want to add a picture box to the form every time the mouse is clicked. But i want the cursor position to be the center of the picture box location.
Private Sub Form1_Click(sender As Object, e As System.EventArgs) Handles Me.Click
Dim PB As New PictureBox
With PB
[Code]....
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Feb 19, 2010
I have to draw a black line across the center of the picture from one side to the other, how do I do that. Here is the code:
Dim bmp As Bitmap
Dim x, y As Integer
Dim pixel As Color
lblLeft.Image = Image.FromFile(tbFileName.Text)
bmp = Bitmap.FromFile(tbFileName.Text)
' manipulate bmp here
lblRight.Image = bmp
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Jun 11, 2011
is it possible to set all the textbox align to center within a form using just only one line of code? Rather than using
123TextBox.TextAlign = HorizontalAlignment.Center
456TextBox.TextAlign = HorizontalAlignment.Center
for every Textbox.
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Feb 15, 2010
catalsyt control center can not be open im monitor display, the warning says command line intrface has stoped working already try to downlowload new dr
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Sep 22, 2010
How to get the line number where the cursor is in a RichTextBox? I'm using VB 2010
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Jan 28, 2011
I am trying to implement a feature that would allow me to move the cursor to the end of a line in a Rich Text Box. Is that possible?
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Jan 3, 2012
When I call this Messagebox, is it possible to center the Messagebox on the parent form rather than centering it on the center of the screen?
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Apr 3, 2009
Is it possible to move the cursor position in a multi line textbox? Here's an example; I have a form with a multi line textbox and a button. The button inserts several lines of [Code] How could I make the cursor go to the blank line between the parenthesis? [Code]
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Jun 11, 2012
i found this video today and its a simple vb game but made me wonder how they kept the charater centered during movement.url...Anyone have a simple snippet to demostrate how they made a larger resulution then vewable and kept the picturebox centered and only moved the viewable area?
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Dec 19, 2011
I need to draw several line-graphics on a form, then select and drag individual graphics to new locations. Is it possible for example to give each graphic path an identity when drawn, then select any one (via mousedown, whatever) and link it to the dragged mouse co-ordinates until released? MS Visio has exactly this ability - can it be done in .NET?
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Jan 14, 2010
how can i make my cursor to jump to the next textbox after i type the digit
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Feb 16, 2011
This VS010 solution is not providing my intended outcome as a custom override of a 'crosshair' or 'reticle' cursor e.Graphics.DrawPath() is the function that isn't working. This
WORKING solution demonstrates how it's supposed to work. The additonal PictureBox added to a Panel is, for reasons I don't understand, not allowing the 'new' cursor to appear.
Option Explicit On
Option Strict On
Imports System.Drawing
[Code]....
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Apr 28, 2009
I have a user control, and want to be able to update its cursor while it is disabled. For example, say that I have a user control whose cursor is Default. The below code works ONLY when the user control is already enabled; if it is disabled the below code doesn't work and the cursor remains Default: Me.MY_USER_CONTROL.Cursor = System.Windows.Forms.Cursors.WaitCursor
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Jul 2, 2009
How can I set the curosr to 'cursor.wait' for the whole display screen and not just for the application form? I have tried "Windows.Forms.Cursor.Current = Cursors.WaitCursor" And several variations but without success.
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Nov 6, 2009
I have a custom cursor that I have as a ico file as cur files are only mono coloured and 32x32.
The only problem in using a ico file is that I can't set where the hot spot is and at the moment it is set in the middle of the icon which is no help
I was looking on the msdn website and it said to set the hotspot like this
Dim instance As Cursor
Dim value As Point
value = instance.HotSpot But I don't know how to set the point value to (0,54) which is where I want the hotspot to be located.
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Aug 19, 2009
This is mis system projectcell painting in datagrid when error while calculating datai have made a datagrid with 7 columns firstly 7 r with values 0 at beginning when user enters input then in the datagrid with first 6 columns & 7 one with total i.e. total (column 7) = col1 + ...to Col7now, when the total entered by user is different from total it should match itif same then no cellpainting is done
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Sep 29, 2010
Has anyone ever noticed that when adding many rows to a datagridview the scroll bar has a problem painting and the user can no longer use it? How do I fix this?
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Dec 2, 2010
Their system executes a DB query everytime they select something, causing performance issues. So I thought that I would read the superset of data into a datatable, and then whenever they want subsets, simply run against the datatable. I've done some testing and the performance difference is HUGE.The problem is how the screen paints on postbacks. The screen will temporarily go blank then the data will appear as expected. Of course, they don't want the blanking of the screen each time they select a subset of data.
I am currently using a repeater to handle the display of data due to the nature of what they want to display. A datagrid might be a good alternative for sorting functions, but I think it would still blank the screen when it data binds.How do I go about filling the repeater without blanking the screen? Is it even p[ossible? Logically I would think not but I don't have the experience. Or perhaps I can fill a datagrid without blanking the screen on the postback?I'd rather not have to go out to the database every time, but if that's the way to go then I can live with that.
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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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Feb 18, 2011
I just finished creating a program where you find the area of a 5 sided polygon. But not I want to actually draw the polygon given the coordinates
Private Sub PI_Estimation_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim myGraphics As Graphics
[code].....
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Oct 16, 2009
Drawing on top of a RichTextBox control has always been a pain due to the Paint event, and related OnPaint() method being suppressed. Here is a bit of code that gets around this issue.The following derived RichTextBox will use a seperate NativeWindow control to hook into the message stream of the RichTextBox, listen for the WM_PAINT message, and then raise the Paint event on the RichTextBox for you.In this way, it is possible to use the Paint event handler of the RichTextBox control to paint on top of the control after it has performed its default rendering of the text.The following code is an initial implementation but appears to be pretty solid so far. 'Based in part on code located at: [URL]
''' <summary>
''' A RichTextBox object which raises, and utilizes, its own Paint event.
''' </summary>
''' <remarks></remarks>
[Code].....
I may continue to expand upon this idea, but I wanted to get the initial code out here as this seems to be the minimum to get the painting functionality to work.Reed Kimble - "When you do things right, people won't be sure you've done anything at all"
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Jan 2, 2010
in the painteventargs of the form, i've got something like this: [Code] i'm getting a very cool gradient effect from red to yellow, but why is that the case? shouldn't the 1x1 portion be totally red? and the remaining pixels be totally yellow?
i'm not trying to paint a 1x1 portion in my form, im trying to know why e.Graphics.DrawImage(bm, 0, 0, 100, 100) doesn't draw a 1x1 red portion on my form through the code provided above. my understanding is that 0,0 specifies the point to draw the image. bm specifies the image actually drawn, which is 1x1 px. and 100,100 specifies the allowed space for the graphics to draw, if this is correct, the first pixel should be red and the remaining 9999 pixels should be yellow but they aren't.
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Mar 5, 2009
I'm not sure if this should be here or in the Graphics subforum. Basically, I want to simulate the monitor(s) going black (it's an immature April Fool's Day prank). My initial thought was to create a borderless form that is the size of all the monitors with a backcolor of black. Then, slowly, increase the opacity of the form. This approach works great as far as the visual effect I'm trying to achieve...the problem is that it's a form. If the form is on top - while you can *see* windows below it - you can't interact with them. I'm wondering if there is a way to create the same visual effect without using a form so that the PC will remain usable while the monitor appears to slowly be getting darker?
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Feb 18, 2011
painting only part of text in cells like my column is NAME and values are bahushekh ,bahushekh1,msdn ,abc etc for that column. Now I want to paint only bahu in Red if it exists rest part will be black
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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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Apr 28, 2010
I've never had a need minimize my application until today. But when I did, and I brought it back up, it looked... strange. Which makes me think it has something to do with a paint problem... or something.
Before:
After:
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Apr 29, 2010
I have a datagridview, wich on colum is a Combobox getting data from another table.This column it's an evaluation score mark, who permit user choose between number 1 and 10I wanna do the following:In my DGV, if the value is lower than 5, then paint this cell, and only this cell, redIf the value is uper than 5, than paint this cell green (and only this cell).That means in the DGV I will have at the same time, red and green cells.
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Nov 24, 2010
How do I paint the part pointed to?
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Sep 20, 2009
I am not doing something right! I just changed my program over to painting to a picturebox instead of the form. Anyway I want to be able to print the picturebox as big as it can on a 8.5x11 size piece of paper without streching the image!
First of all I can't even get it to print at any size... it says I have no Picturebox1.image!
Public Sub Picturebox1_Paint(ByVal sender As System.Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint, PictureBox1.Paint
g = e.Graphics
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