Determining What Objects Fall Within A Selection Rectangle (marquee)?
Nov 10, 2010
I'm writing a program that (amongst other things) provides an IDE-like environment for the user where they can select one or more objects with a rectangualr selection tool.All selections will be a simple rectangle, and all selectable objects will be simple rectangles as well.I already have the code (VB.Net) to create the rubber-banding effect visually - what I need is an efficient algorithm that will tell me what objects have at least a portion of their area within the final selection rectangle.
How can I temporarily disable listview selection rectangle, so when someone clicks the listview and holds the button down & moves the mouse, the rectangle is not shown? And how do I enable it again after that? (VB.NET)
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'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?
I have a new application that i am trying to release on my desktop but after it installs it pops up the Cannot Start application dialog window with application cannot be started. contact the application vendor inside the msgbox. Details...> ERROR SUMMARY Below is a summary of the errors, details of these errors are listed later in the log.
* Activation of C:Usersus0TB732DesktopTE2.0_DebugTEAuto.application resulted in exception. Following failure messages were detected:+ Value does not fall within the expected range.
But the crazy part is if i release the same program no changes to the code on my laptop i have no problems with it what so ever. Before you say it i cant just keep using my laptop because i dont like having my personal laptop at work.
i'm using VB.Net 2005 application program.i'm trying to convert VB6 code to VB.Net 2005. QSockB is DLL file.this is the code i used for VB6. This is code i'm using to create socket, when program runs... and when i hit start button it calls Q_SendHeader function.[code]This works fine in VB6... but Q_SendHeader is not working in VB.Net 2005.
I have just made a few changes to an old project I was working on, and now when I try to view the designer, I obtain this error: Value does not fall within the expected range.
Call Stack:
at EnvDTE80.CodeModel2.DotNetNameFromLanguageSpecific(String LanguageName) at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.CodeTypeDeclarationFromCodeClass(CodeClass vsClass) at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomParser.Parse(TextReader codeStream)
Im Wirting a Program that ask a user to Input Rain Fall of Each Month Im using Arrays for this, then once a user clicks on Display Stats, the user should see Annaul Rain Fall, Average Rain fall, Min Rain Fall and finaly Max Rain Fall,Ok any way the Program is Working away but the Min and Max Rain fall is Showing 0.
(code) Public Class Form1 'Const IntNum_Months As Integer = 11 Const intNum_Months As Integer = 11
[code]....
i tryed a Val1 < Min and also a Val2 > Max, in Array(1) but this didnt work either.
How to Add Not condition in the below select case.Is <> works for single value, and 'To' works for a Range but the value are specific values there are not series of numbers. Is it possible to use select case in this scenario, or do i have to switch to if-else. Ex: i don't want case to execute when value is 0 and 3.
From time to time, I see people asking about how to make marquee text. I recently wrote a marquee class I figured I would share, in case anyone finds this useful.
Heres The Class:
Public Class Marquee Private _CurrentText As String = "Paul's Custom Marquee" Private _text As String = "Paul's Custom Marquee"
Using this [URL] to retrieve both address and place name at the same time ("//span[@class='listingTitle']|//div[@class='address']/text()[normalize-space(.)]"), I can get a list of placenames and addresses like this in a richtextbox:
The first line is bad, it doesnt have an address. Line 2 and 4 are good, they have addresses. So what I could do is:Check each line,if the following line doesnt contain "numbers + ON" then delete line. This will leave me with PlaceNames followed by addresses, which I will then split every other line into a new textbox, (so I have one textbox with placenames, and another with addresses).
i'm using VB.Net 2005 application program.i'm trying to convert VB6 code to VB.Net 2005. QSockB is DLL file.this is the code i used for VB6. This is code i'm using to create socket, when program runs... and when i hit start button it calls Q_SendHeader function.
I've got a form that has a ProgressBar on it. The Style is set to Marquee. In the Form.Shown event handler, I call BackgroundWorker. RunWorkerAsync(). In the old version, while this is occurring in the background, the ProgressBar is scrolling, which is exactly what I want.I copied over not only the code from within the file (i.e., the logic code) but also the code from the designer file. So, from what I can tell, there should be NOTHING different between the two files. However, in the new version, the marquee scroll doesn't occur.
Is it possible to have the title bar of your application be a marquee? The only way I know of to make a marquee currently is this:
Public Class Form1 Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick Label1.Left = Label1.Left - 10
[CODE]...
All that does is make "Label1" move from right to left across the form.. is having a marquee in the title bar possible?
I am trying have a data grid selection populate a form. I am new to this.Basically I have a connection persistance object and I would like to call that and call a stored procedure with the value of the selection. The datagrid is bound to an object.
osheet.Range("A1").Select 'The line below is the one I would like to know how should I write it in VB.NET: osheet.Range(Selection, Selection.end(xlDown)).Select
I wanted a ProgressBarStyle.Marquee animation while a query is running. I don't want the user to think the application is locked up. it's really not progress just MarqueeAnimation. the issue I have is it's not running as a thread or in the background.
Private Sub ButtonExcute_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonExcute.Click ProgressBar1.Style = ProgressBarStyle.Marquee ProgressBar1.MarqueeAnimationSpeed = 60 ProgressBar1.Refresh()
How to add scroll delay in this coding for marquee ? It will not scroll till the last character, it will disappear when first character in literal1 will touch the left side ... i want it will scroll till last ..character
I'm coding in VB.Net 2010. What's the most efficient way to create a horizontal scroller (i.e., marquee)? I've found some dead threads and ways to do it in older versions of VB, but I'm not finding anything particularly recent....
There is a question that I have from YEARS after working with DotNetBar Components that How do you set the Marquee style of a normal progress bar on the circular one? The circular progress bar from DotNetBar, i want to be clear.There is no "Style" Property and now I really need to know it for a project I'm doing now
I want to create a custom, good looking, marquee progressbar for my splash screen. I found a good desgin and i am trying to duplicate it, but i am not very good with System.Drawing. I would like to create the following progressbar[url]...
I was wondering if there was a way to get the marquee of a progress bar to change direction when the marquee gets to the end of the progress bar and vice versahere is a small diagram to show you what i mean[---][*--][-*-][--*][-*-][*--][---] = progress bar* = marquee
