[URL] In my Windows Form, I wanted the user to give an option to draw all over the form. But, if the user while drawing, enters the region 1, I want to assign a value to variable, say a=1. Correspondingly, if the user without leaving the mouse button previously enter the region 4, I want to b=1.After the user leaves the mouse button, I wanted to compare a and b. If both of them are equal, then Result=Done else not.
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The below picture is generated by the following code:
Public Class Form1
Private Sub Form1_Paint(ByVal sender As Object , ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me .Paint
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What I want to do is when I click on each grid on the form (Touch Screen), a tooltip of some stored information about the grid appears on screen. For example, if I click my mouse on square 6,8 then some stored information such as grid number, grid name, level...etc appears on the tooltip on the screen.
I would like to add a picture on my form, e.g., a map of Europe, and i wanna be able to click on UK or France etc. Each country will be programmed in doing something else. What i wanna do for a start is to make my map active so as to can click on these different countries.
View 10 RepliesSomething is going wrong, I have no idea what it is. I just simply want to draw over pacman so he can open and close his mouth, so there would be 5 pacman's, with different mouth positions.Note: The change of color was just to make sure I was seeing the results.)
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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
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im making a game with XNA, but when I draw diffrent layers it's not drawing them transparancy, why? (just run the game and you'll see)
View 4 Repliesi have a form that looks like this: i need different areas to execute different code, just as if there were buttons. how do i set areas of the form to be clickable in vb.net?
View 2 RepliesI need some code to draw a resizable, draggable rectangular cursor (or selection box) on a picturebox. I found some excellent code (albeit rather old) that does just that, but on a form rather than a picturebox. I have tried converting the code - basically moving things to the picturebox events (Paint, MouseDown, MouseMove etc). It nearly works but leaves a trail behind it when you move or resize the cursor. In other words, the selection rectangle is not being erased before being drawn in the new position.
Is there some fundamental difference between drawing graphics on a form and drawing on a picturebox that would cause this behaviour? Something like, when you invalidate a form and cause a redraw it erases what you did last? If not, then I just need to dig a bit further and work out how the cursor is being erased from the previous position.
Here's the original code that works fine on a form:
Private DragRect As New RectangleF(20, 20, 100, 80)
Private Adornments(7) As RectangleF
Private MouseInRect As Boolean = False
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Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?
View 4 RepliesI was just thinking if there is any component which monitors sound output. My intention is to recognize a particular sound coming out from my soundcard. I know its an issue about the driver of my sound card but is there a way I can get atleast noise level coming out of my speakers and maybe draw a graph and detect the peak at when the sound is played?
View 7 Repliesso in a program I'm working on in VB.NET I'm trying to make it so I can take in a list of strings (each on a different line). For each line I want to take in the line, and break it up into three parts. The first part goes from the beginning of the string to the first colon in the string, the second part goes from the first colon to the at symbol, and the last part goes from the at symbol to the end of the string.
For example, I'd take in a line of the series of lines: hello:world@yay
I'd want to break it into three separate strings of "hello", "world", and "yay".
How would I do such a thing in VB.NET?
I have a function read the text file line by line, i have to detect a specific word in the text file befere proceed to another action. But I can't use substring because i not sure exact location of the word.
View 1 RepliesI have created a class which builds a Crystal report and displays it in a report viewer. However, without the Crystal Redistributable, the code crashes. How can I programatically detect whether the end-user has the Crystal DLL installed? The code I am required to include is:
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I am very new to vb.net. I need to be able to see when a certain popup window appears in another application. The time time it takes to appear varies so I need to know when it appears and in some cases when it has closed.
View 1 RepliesI have a picturebox that the user can draw on and I need the program to detect if a specific point has been drawn on. For example, I need the program to detect whether the user drew at location (8,8) and give a basic True/False answer.
View 4 RepliesSomeome knows some utilities that can detect all the API calls of a specific external application? The application I would like to detect is a console application and, being without form, Spy++ don't find it.
View 2 Repliesi have created an application using vb.net 2008 which will maintain backup of the database in system32 folder
View 2 RepliesI send a message a while ago and no one answerd, how can I draw directly on the screen (not on a specific window) just on the screen, neither if it's on the desktop or anything else.Is there is any option to bring up the switch between applications window (Alt + Tab), I don't want to use sendkeys because the user need to keep the key down and I just want the user to select the application with his mouse.
View 3 RepliesI need to detect shift + arrow key in blank form. But it's not working. I also tried overriding IsInputKey method but it only detects single key press (like arrow key) but when multiple key are pressed it simply doesn't work.
View 5 RepliesImports System.Runtime.InteropServices
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
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My graph code works but i'm afraid it may not be efficient. I'm drawing a graph on a form using GDI. Basically, i'm making the entire form one big graph. Is this the best approach to creating a graph:
Private Sub frmGraphPaper_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim g As Graphics = e.Graphics
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how to draw in vb.net, and I figured the easiest way is to get my hands dirty and start coding. I figure that the best way to start is by drawing a line on the form. What I'm trying to do is use the graphics.drawline(), but I'm failing. This is what I'm using so far
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1)Interestingly, if I try to draw on a Form with formborderstyle = none, no drawing appears.On a form, with borders; no problem
2)If I draw from wihin a paint event, i can draw on both.However, the paint event has its own issues, most irritatingly the fact that it doesn't draw immedately, but only after going all the way back through a whole chain of calls.anyway that I can draw directly on a borderless form?
Drawing with GDI+ on form load?
View 1 RepliesI have a form that I want to draw an image on.I also want this to be an animation so I can't use picturebox.However when I declare the graphics it gives me the error: "Type 'System.Drawing.Graphics' has no constructors"
:I have already import 'system.drawing:
Dim g As New Graphics() 'I get the error here
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
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I'm currently in a programing class for vb.net. It's my first true exposure to OOP and I'm looking for some advice on areas where I could improve. I was wondering if someone would be willing to look at one of my programs that I have written and offer advice on areas where I can improve and things that I made much more complicated than they need to be. I'm not looking for a line by line critique just a general look at things to improve upon in the future.
View 2 RepliesIn my "root" Views folder, I have a _ViewStart with the following code:
@Code
Layout = "~/Views/Shared/_Layout.vbhtml"
End COde
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I'm having difficulty drawing a graph using a picturebox and the graphics type. For some reason my graph doesn't load, even if I put thec code at the end of the on load event. But it works fine of I assign it to a button.
View 2 Repliesi have the blow code that draws forms border with custom color and title.
'A form with custom border and title bar.
'Some functions, such as resize the window via mouse, are not implemented yet.
Public Class CustomBorderColorForm
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I have some code that I've inherited, and it's not the greatest in the world, but it works, with one small exception:
This page is a directory search, it has controls identified by record ID, however there exists a situation where there can be more than one result with the same record ID, thus making .NET barf. I had originally implemented a check that just didn't put the control on the page, if it was already there, but we've been getting negative feedback.
My question is this: Is there a way to put the same control in two places at once, for instance having if a user checks one, the corresponding one checks as well? I'm not terribly well versed in how .NET behaves, but I'll try to provide as much additional context as possible, if needed.
EDIT: Here's the updated code that generates the controls by looping over a datatable of results
Dim cbxSendInfo As CheckBox
Dim strCheckboxID As String = "cbxSendInfo-" & drOrganizer("ID") & "-" & i
Debug.text = Debug.text & " Loading Checkbox (" &
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Where drOrganizer("ID") is the record ID, and i is the result record number.
I know this is a terrible way to do this, at least from my background, but like I said, this is inherited code that's been hacked to pieces.
