Rounded Rectangle Not Accurate?
May 19, 2011
Every sample code I've ever found for drawing rounded rectangles using GDI+ goes something like this (lifted and slightly modified from BobPowell.net):
Private Sub Panel1_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles Panel1.Paint
e.Graphics.Clear(SystemColors.Window)
e.Graphics.SmoothingMode = SmoothingMode.None
[code]....
This produces a rounded rectangle where only the top left corner is accurate.AntiAliasing has to be turned off because it is going through a remote desktop connection, and I can't depend on it being available. Besides, I am looking for a crisp rounded rectangle.I've tried resizing the other corners and changing the pen alignments, but nothing seems to produce a simple, accurate rounded rectangle.Is there a way to draw a better rounded rectangle than this in good old winforms?
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Feb 16, 2011
Working on some UI stuff, but I am having a problem drawing 'Top rounded' rectangles when the two top corners are rounded. I have methods to draw all four corners rounded and bottom rounded rectangles and they render fine.
I have attempted the graphics methods in CreateTopRoundedRect() in a variety of different orders, drawing the other corner first, the bottom line first, the bottom line before the left line, etc. In this function you can see a diagonal line splitting the shape. If you were to switch the bottom and left lines only half of the shape would be filled.
[Code]...
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Jan 24, 2011
I know how to create the Rounded Rectangle, but what i don't know how to do, is make the area outside of the rounded rectangle (the corners) become transparent This is going to be used on a usercontrol, so i really need it to be transparent and not just blend in (ie adapt to the colour of the parent form).
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Mar 30, 2011
Is it possible to design my form like 3D? Or having my form displayed as a rounded rectangle?
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Feb 14, 2011
i'm trying to create a flat tabcontrol with a rounded rectangle tab for the selected tab + no border for inactive tabs?basically i'm trying to recreate that ribbon control in a very simplified form as a usercontrol.
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Jul 26, 2010
i've got a little problem with List(on T) variables.
[code]...
It works perfectly fine. Does anyone know what the problem is?
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Feb 22, 2010
Given 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
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Dec 3, 2011
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)
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Jul 26, 2009
I'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?
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Sep 16, 2011
why this code the number i add not expected what i want?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim com As New OleDbCommand
Dim d As Integer
Dim qty1 As Integer
[code]....
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Apr 9, 2011
I want to build a metronome,which sounds a beep in a specified time interval.The beep has to sound exactly the right time, after all, is a metronome.I need a timer that runs events(tick event)accurately.The timer control is not for this.
[Code]...
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Dec 16, 2011
I set the value in VBT as 1.205, but if i print that value in Immediate window it get changed to 1.20492553710938. I need to display the value, whatever i have set.
what is the problem here and the solution to get the value whatever i have set?
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Feb 3, 2009
I am currently using Decimal, thus far I have not checked thoroughly if it will have any inaccuracies so I wish to know from your experiences what is the best variable type for calculations, it would mainly be for areas.
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Aug 6, 2009
Whats with this??the result of:CDbl(csng(35.8))is:35.799999237060547
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Oct 15, 2010
look at this class and say why it's just returning just the first row in the second query, the issue is that the Salary is showing the right value when debugging, but when deployed to IIS it's just returning the 1st row
Imports System
Imports System.Collections
Imports System.ComponentModel
[Code].....
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Jan 3, 2011
I'm using the code below to send large strings (500kB) to a server. I'd like to show the upload speed and in order to do that, I need to calculate the amount uploaded every second.
In a Timer that fires every second I get the BytesUploaded, divide it by 1024 in order to get KiloBytes (kB/s) and show it to the user. Then I set BytesUploaded to 0 and one second later do the same process.
The uploading is done asynchronously and the size of the data is added to BytesUploaded at once. This means that BytesUploaded is not being updated in a constant flow and has a totally different value almost every second.
0
512000
0
0
[Code].....
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Jul 25, 2009
I'm creating a program (SURPRISE!), one of the features it has is a tutorial helping with learning a language which has a lot to do with the program's topic. So, I want the program to be capable of getting what the user inputs using his microphone (as a respond to a question the program asks), then analyze it and compare it to a prerecorded answer, then tell him how well he did. How to do that?
If this can't be done using VB.Net, which wouldn't be much of a surprise, then what programming language or whatever do you recommend for me to create an external .exe file which takes in the input, analyzes it, and returns the result to my program? (Isn't this the longest sentence in the English language!)Yeah, and, how can I control how accurate the program is while comparing them?
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Oct 1, 2010
I have been trying to create a timer program with VB 2010 to the accuraccy of 0.05seconds (If possible, 0.01s)I insert a timer into the form (Timer1, Interval - 50).[code]But when I run the timer for 1min, the recorded time was 48.05 sec.How can I make my timer more accurate? Is there anything i have done wrongly with the code?
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Sep 15, 2011
when i type the number in textbox3, why the number update to database not accurate ?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim com As New OleDbCommand
Dim qty As Integer
Dim d As Integer = 0
[code]....
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May 19, 2012
I am currently creating a program to send keystokes to a program at certain intervals. I need the thread to delay between keystrokes, and i need to be able to have the user input the amount of delay from the GUI via textbox. I have it running perfect with Thread.Sleep(), but it just isn't consistent enough. How can I code it to be accurate to roughly 5ms up or down? thanks, and here is the code. This is in VB 2010 by the way.
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Dec 30, 2008
is it possible to draw an accurate circle in vb.net with mouseDown and mouseUp boundaries? I only manage to create circle-settings with rectangular boundaries using DrawEllipse. I've tried to work around it using pythagoras but it just doesn't work and I'm pretty sure I've got my maths right...
Is it possible to define a circle with DrawEllipse(pencil,x1,y1,width,length) ?
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Apr 1, 2009
I'm working on a calculator application and one function is to find midpoints on a cartesian coordinate system. I have inputs for two x and two y coordinates , and the program calculates the midpoints of both and prints them in a text box as a new set of coordinates. The points are represented by doubles to allow decimal and negative points, but I want to round the final coordinates to 1 decimal place. e.g: (12.5, 9.8) Math.Round would work, except that it only seems to be able to round to a whole number. e.g: (12, 10)
Is there any way to specify how many decimal places Math.Round rounds to, or is there another function that could acheive this result?
[code]...
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Jun 10, 2012
Is ther a simple way to get a picture box to have rounded corners???
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Feb 15, 2011
I have two textboxes that will contain numbers.I convert those text boxes to integers and then want to multiply them by certain values and then show the new value in a different textbox.For example,100 gets converted to an integer and then multiplied by 1.75 and the value displayed in the other textbox is 200 instead of 175.How do I make it so the value isn't rounded to the nearest 100? Here is my code, compTotalPremium.Text and collTotalPremium.text are the boxes that are showing the rounded value.
Dim Comp As Integer = compDedPremium.Text
Dim Coll As Integer = collDedPremium.Text
Dim CompMulti As Integer = compDedMulti.Text[code]....
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Apr 19, 2011
When I draw a line on a VB form the ends are squared off. Is there an easy way to make the ends rounded?
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Jul 31, 2009
actually when I edit float value in datagridcell , I want only two numbers to be displayed after point(.)....i.e 2.35 instead 2.34567 more over am getting it but the actual thing is that value is not getting update in the dataset , but when I reload the form it shows like 2.34567 only instead i want 2.35...
Public
Sub GridCellValidation(ByRef dgvRow As DataGridViewRow, Optional ByVal FillControls As Boolean = False)
[Code].....
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Jun 21, 2010
i have a problem on my DateDiff result. For example the result is 3.5, it will only show 3. How can i control that?
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Jul 28, 2011
How would I make for example a rounded corner textbox is this possible?
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May 13, 2011
I need some help importing data from Excel 2003 into VB10. My goal is to import the data and save it to a 2D array for later use within the application. The data is on sheet 1 of the workbook and goes from A1 to D1072 with a header row. I have done a lot of research on line to find a solution but have been unsuccessful. From what I have found I have put the following code together. When I complile and run the program I get the following errors.
1) I think while compiling it gives me this error: The source file is different from when the module was built.
2) While running the program it stops on the connect.Open() and has this error OleDbException not handled. Could not find installable ISAM.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
' Import float volume data from Excel
[code]....
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Aug 20, 2010
I have read about Round() and MidpointRounding.ToEven but I still could not figure how to use it to achieve what I want. I have numbers (usually from 5 digit decimal) such 125.36 , 125.10, 125.99. I want to make the 2 decimal point rounded to the nearest 20. Means, the 2 decimal point should be either .00 or .20 or 0.40 or .60 or 0.80 only.
125.36 should be 125.40 : 125.10 should be 125.00, 125.99 should be 126.00
125.54 should be 125.60 and so on
Is there math function to make or I should parse the number as text and test the last 2 digit?
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