How can i change the backcolor property of an object to an rgb value?
i do as it says in the help:
Code:
dim ink as long
ink = rgb(233,126,190)
lblInkPot.BackColor = ink
but i get the error "Value of type "Long" cannot be converted to "system.drawing.color"", but it specifically tells you in help to use "long"...
I'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.
I have a form and on it there is listbox. What I want to do is to make the listbox's backcolor transparent. I really do not understand. I have searched many sites but I couldn't find an exact answer. Is it really that hard to make it??? I found this code on a few sites:
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I have a vb2008 combo box with the DropDownStyle property set to DropDownList.Now, when I set the text property to something programatically nothing happens. That is, the "something" doesn't show up on the control with list collapsed. It still doesn't show even if I force an update(If DropDownStyle property is set to DropDown, setting the text property programatically works fine, even without forcing an update).
View 4 RepliesIn the game, I'm using labels and the backcolor property to change their living status. I have an array of the labels. However, when changing their life status using a for loop, i've come across a problem where previous elements in the array effect the next ones before the end of the generation. I found somewhere that recommende I use a different array, However, im not too sure how.
For x = 0 To 400
Boxes(x).Neighbours = GetNeighbours(x)
If Boxes(x).Neighbours = 0 Or Boxes(x).Neighbours = 1 Then
Boxes(x).Alive = False
[CODE]....
I already have one year experienced in c++, and built many private applications.My question is simple to ask, and simple to answer I think.When I select an item in a listview, I want the full item to be selected. Now only the TEXT in the listview item is selected. I've made a picture to clearify my problem.The picture in the link below is splitted up in two pictures. It shows what I currently have, and what I want (my aim)
View 4 RepliesThis is another question about my galaga like game. I want the enemies to move to a random spot one pixel away at each tick of a timer. How would I go about doing this?
View 6 RepliesI tried to create a lineshape and make it visible when a timer ticks. Also tried to set everything that would matter when creating it(border colors and thickness etc)
But still, I got no results.
Code:
Dim line = New Microsoft.VisualBasic.PowerPacks.LineShape(CX, CY, ccx, ccy)
line.Parent = New Microsoft.VisualBasic.PowerPacks.ShapeContainer()
line.Enabled = True
[Code]....
know that there is library which can change the theme of the form but i do not
View 1 RepliesI was wondering if there is a way to have a button/label that would change the selected item color of the combobox from the standard black into a certain color (say green), but not change all of the items' color into green. This is for a to-do list type of application where a user clicks the button to signify that the current item is finished..This is what I was thinking (not in VB code) When button1 is clicked, combobox1. selecteditem. color = green
View 1 RepliesI am trying to put an image selected by the user into the form background. This means that an image from a specified file destination to be set as background.
View 2 Replies[code]For some reason I cannot change the color properties for the MonthCalendar control.[code]No matter what I change it to, it stays to its default color of white and black. Actually none of the color options work on any of the sections of the control.I am trying to hide the white border around the control and but a blue bar under the name of the month (top section).I have tried deleting the control and creating it anew on the form but no luck.It was working a couple of weeks ago.
View 1 RepliesI have got a problem. Here is my problem: I have a CheckListbox and in that checklistbox i insert some checkboxes. But those checkboxes should have different colors dependin on the condition.
View 4 RepliesI have a listview with a number of items with different color backrounds on each. But when i click on one of the items, the color of the item that the selection has just left turns to white, but it is recognised as being green/blue/whatever. If i open up another form on top of that one, and then close it, the colour comes back for the area that the form was covering.
I have a textbox that changes its backround color based on the color of the listview item currently selected, and that always shows the correct color.
I'v crawled the web and can only find one instance of it happening and that was a graphics accelerator problem, but i cant turn off my accelerator.
I have a standard DataGridView. One of the columns is a DataGridViewComboBoxColumn. When I select one of the ComboBox items, I want to trap the change and add additional columns based on the item selected in the ComboBox. I've tried using CellValueChanged for the DataGridView column, and a bunch of other events, but none of them is fired when the DataGridViewComboBox value is changed. What event can I trap to make this happen?
View 1 RepliesI have a qeustion where i made a function that changes the property value of an object. the objects + alias are stored in an array (Objects()) , if the var (NewValue) has a value then it checks the property type and converts the Newvalue and inputs it.
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On form1 I put a picturebox from the toolbox.[code]Is it possible to set picturebox.visible=true of the inherited picturebox?
View 1 RepliesIm 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.
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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.
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drawing 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 Replieshow 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 RepliesHow do I transfer the value of a variable and place it into the text property of an object on form load?
View 2 RepliesI am working on a project that uses lots of custom class objects.Before starting work on real project, I tested the object behaviour on a temporary project. And find that if i add the object to a list and combobox and then make any change to the object property then it reflects in list and combobox.But after using the same process in real project the change does not reflect. Why?Also, how can i update object property placed in the combobox.
for eg.
Class X has property id and name
created objX of type Class X and set id=1 and name='All'
[code].....
In an ASP.NET 3.5 VB web app, I successfully manage to cache an object containing several personal details such as name, address, etc. One of the items is CreditNum which I'd like to change in the cache on the fly. Is there a way to access this directly in the cache or do I have to destroy and rebuild the whole object just to change the value of objMemberDetails.CreditNum?The cache is set using:
Public Shared Sub CacheSet(ByVal key As String, ByVal value As Object)
Dim userID As String = HttpContext.Current.User.Identity.Name
HttpContext.Current.Cache(key & "_" & userID) = value
End Sub
how do i change the property of a created object in the timer event? In other words i have a button that creates a panel for me, in a time event i want to change the created panels to a different backcolor, how would i do this?
View 1 RepliesI'm creating an new class object with a property that holds a generic List(of Singles).After creating this object, I change this generic list. Since I didn't pass that list as ByRef in the New-Procedure, I would expect to already created object instance NOT to change, but that not the case. Where am I wrong?
'Class
Public Class clVessel
Public Sub New(ByVal ID As Integer, ByVal Frequencies As List(Of Single))
[code].....
Ok, 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 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?
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