Is there an easy way to display the rgb code of system colors in VB2008?
That is, I am looking for some code that will retrieve the names of the colors that are used in the system colors and display their rgb codes (and maybe show a sample), so I could display, for example, what the rgb code for "control" is.
I want four rows in a row to share a color in a datagridview and alternate between two colors every fourth row. What I'm doing is this:
Code:
Public function FormCells() As DataGridViewRow()
Dim NewRow(Forms.length - 1) As DataGridViewRow
[code].....
I'd like to check for all colors in an image. I've already came up with this:
Code:
Dim lst As New List(Of Color)
Dim img As Bitmap = System.Drawing.Bitmap.FromFile("C:image.jpg")
For x = 0 To img.Width - 1
[code]....
Unfortunately this needs to sweep through all the pixels, and it's EXTREMELY slow... method to get all colors in an image without sweeping through all pixels?
can i convert colors values to integer?
View 6 Repliesdrawing text on a window which is not the current form's window.I remember doing this in Win32 api with getwindowdc(handle) to obtain a DC for the Window, then textout() on the DC.
View 2 RepliesIn an application I am using this code for drawing a X/Y graphic line in a panel object (Sungraph):
Dim SunDrawCount As Integer
Dim SunArea As New ShapeContainer
SunArea.Parent = SunGraph
[code]......
I am using several instances of a panel object I am creating.I would like to be able to draw a diagonal line from the upper right to the lower left corner of some of the instances.I have been able to create the panel with a background image that has a white line on a transparent background, and I can switch it on and off, but I would like the line to have the active text color.How can I make an image object that uses the system palette?
View 6 Repliesi'm looking for a way to get the system's folder icon WITHOUT using an icon file. i've also come across this great class that works very well with files but i'm not sure how to make it work with folders.
Code:
Public Class Icons '=====================================================================================
' clsIcon
[Code]......
We are in the final stages of releasing a new in-house written system within our company. We have opted to create a single system/project containing multiple programs (like a mini ERP system).We are stuck on the navigation mechanism which will allow the user to load the appropriate forms. I am personally not a fan of the Tree View control because I think it is unfriendly to users. I have been looking on the web for some inspiration and I am interested in the design of the OPEN BRAVO ERP system. Before we dive in though, I wanted to get other programmers opinions. What do you find works best in VB 2008?
View 3 RepliesI have only recently started using VB.NET after having a little experience in VB6. I am trying hard to force myself into this OOP mindset. I want to know if a certain thing is possible.
I want to be able to call a function in the beginning of my main form's startup sub. The function call would look something like this.
Code:
Private Sub frmMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim Username, Password, NewPassword as String
[Code].....
I am trying to write a program in VB2008 Express. I originally wrote it in excel, but I want to add some features and make it a standalone executable. the program is ideal for a spreadsheet application though.
essentially, there are two input tables. each containing about 6 columns and maybe 10 rows. I assume that could be handled by arrays. the output would be a continuously updated table of output based on calculations using the data from the two input tables. the output table would be about 4 columns by up to 1000+ rows, and would need to be recalculated and displayed each time any data in the input tables has changed.
first, are arrays sufficient to handle this? would databases be more appropriate?
second, what's the best way to display a long list of output, that has a user defined length and is continually updated. it would also be nice to have the ability to click on an individual cell (or value) in the output and have more code executed.
is there a way to incorporate a spreadsheet like tool for this as a backend? I want to make sure i'm using the most efficient approach before i invest too much time.
I don't usually use VB but now I must for an assignment. I would like to know if it's possible to change the display name for an object on a listbox. For instance, if I add to it a user defined class, there's a way to provide it's display name, instead of converting it to string and then add it.
This is what I have
Dim format As String = FormatOutput(object)
Lista.Items.Add(format)
I would like to have the same output, but instead add the object.
Note: if such is not possible, then how can I associate the list box selection to the actual object? Doing it by index is painfull, because I'm using linked lists (ie., instead of arrays).
Note 2: python has a __str__ method which is called by default when the object is cast to string. Is there anything like it in VB?
Im in a win.form app. in .Net 2008 I have a lot of Icons that I want to display on a (TouchScreen enviroment) button The icons are in 8,16; 32 bit in the sizes 16X16 ; 32X32 ; 48X48 The buttons are large enough, they have a dimension of 252X132. The images are loaded via the Button propertie : Image. This has allso a size propertie, but is disabled. And I can see its loading the 32X32 32bpp format But I want the 48X48 size on there. Does some 1 knows how to get those sizes op the button.
View 3 RepliesI was unable to see the code generated by vb for form initialization automatic code generated by vb how can i see it?
View 1 RepliesI've been trying to get some help for this in another thread,but it looks like it's a task that is going to need a wider audience to try and find someone who knows something about writing/creating procedural textures at the pixel level in VB.Net. The VB6 example I'm trying to convert to VB.Net is attached to this post.
[Code]...
below is my code for copying an image from a form to send it to the printer.it works but it tends to be a little blurry. is there anyway to make it sharper?
Bmp = New Bitmap(Me.ClientSize.Width, Me.ClientSize.Height)
Bmp = New Bitmap(800, 500)
Dim G As Graphics = Graphics.FromImage(Bmp)
G.CopyFromScreen(Me.PointToScreen(Me.ClientRectangle.Location), New Point(0, 0), Me.ClientSize)
I'm trying to figure out some simple code to detect when a pixel changes color anywhere on the screen. Maybe with just a msgbox popup when it changes.
View 2 RepliesDoes anyone know how to turn off the blank space delimiter of a dot? I have no idea how I turned it on, but now there's a dot where every whitespace charater would be in the IDE's code window.
View 2 RepliesI need to disable a button after its pressed so the user does not have the ability to click it again as this would replicate the process in some cases. After alot of searching I found some tips - alot of code I found I could not understand.This is what I have come up with:
[code]...
I also read somewhere that I should use: System.Threading.Thread.Sleep(1000) to delay the process or something - not entirely sure why I would do this though.Although, the problem with my above code is that when the code behind page performs validation checks, it exits sub before executing my INSERT SQL code - so when it does this it also disables the button.I am not entirely sure if the above method is fool proof or whether it is a **** piece of code that won't work 100% of the time.On another website I found a script to put on the actual HTML page with <script> tags:
[code]...
But although this works, it does not execute my VB code in the code behind page so I am a little confused where to go here.
I'm making a custom class that mocks the System.Drawing.Rectangle class because the Rectangle class doesn't have a name property. I need a name property because I am adding all of my rectangles to a collection and I need a little more info stored than just their locale and size. So I changed the _onPaint event but nothing is working out when I run the program?
Public Class Rectanglar : Inherits UserControl
Public BackgroundColor As Color = Color.Blue
Public Sub New(ByVal name As String, ByVal XY As Point, ByVal Widthy As Integer, ByVal Heighty As Integer)
[code].....
Im working on a project that needs to print a report of one client.Everything went smooth untill i came across my multiline input text data.When i display it in the PrintPagePreview the text go's outside my page. Even when im printing it only the halve of my text is displayed. I googled and looked everywhere but i can't get a clear fix for it.
[Code]...
I used to program with Visual Basic 6, so I have alot of old programs that I'm updating, plus I'm learning the new VB2008 methods. I'm writing a program that replaces the old "BitBlit" function which is no longer supported by Visual Basic 2008. It involves three picture boxes, one holds the sprite bitmap, a second holds the mask (silhouette) of the sprite bitmap, and a third has a background image.
[Code]...
how to create a user interface in a game such as the application XFire using Visual Basic?
View 3 RepliesI'm working on a design project where I have to use a Graphical User Interface that contains a drag and drop form. It consists of having a window dropped on a wall. Both of them are images to scale. I would like to know what kind of code I would have to use to show the x and y coordinates of one of the points of my window when dragged so when I drop it, I'm dropping in it on the desired coordinate of the wall.
View 2 RepliesOk, I want to create a class that will handle a special rectangle graphic.In my form, I want to have two of these special rectangles. So, basically, I need two instances of that class in my form, right?I manage to initialize two, alright. But, how exactly am I supposed tomanage drawing/graphics etc in a class, and the results to be displayed in my form?
View 13 RepliesUsing graphics paths for designing...but am getting an error when trying to add a shape to : _shapelist.add(createshape())
It says : Value of type 'system.drawing.drawing2d.graphicspath' cannot be converted to '1-dimensional array of system.drawing.drawing2d.graphicspath'
I want to draw a string like WWW with 3 different colors. If i use e.Graphics.DrawString("WWW", RichTextBox1.Font, Brushes.Green, 150, 150) it will print in a color but i want to print in 3 different colors.
View 4 RepliesI was wondering if I could elicit some tips on how to procede with an interface design approach.That is. What is a good way to go about establishing a "work area" where one can have multiple "floating forms" in this area.Can you have a form which occupies the entire windows desk top and the other forms "float" in this space? the "floating" forms would need to interact with each other where pressing buttons etc on them would affect other forms on the "workspace") Or what would be a good way to start accomplishing that? Or is there a better way to get the same effect?
View 4 RepliesI'm trying to make a .dll that contains a lot of basic functionality that a program can use. Currently i am trying to use interfaces to make a lot of this functionallity independend of the program using it but i hit a snag. The Basic idea is that a programmer will create his own object using the interface discribed in my .DLL file. Then implements those functions as he likes. He can then instanciate a controller (found in the same DLL) and sends his custom object implementing the interface to that Controller. The controller can then be started and will take over all the work. I do not know what type of object is send to the controller and idealy i want to program it in such a fashion that i shouldn't care as long as the object send implements that interface.In code I am trying to achieve the following: (quite simplyfied)
.Dll:
Code:
Public Interface MyInterface '<----Decleration of the interfaceFunction GetData() As Integer
Function SetData(Data As Integer)
end interface
[code]....
this propperly. I know that the second i set the interface adaptor in the Controller VS comes nagging that it can not be converted to a "MyInterface" Class. Obviously i am doing something wrong. I can change the datatype that the controller expects to the "MyController" type but that would completely ruin the whole idea of flexibillity. I am hoping someone sees what i am trying to do and can point out where i made the thinking error.
Is this where i would post a picture of my interface and get feedback on changes for easier use? If not is there someplace on this forum or any other forum to do this?
View 1 Replies