Using Variable In System Graphics
Jan 14, 2012I am trying use a variable which is set by the Color dialog box in the FillPath and Drawpath. ie: to select the color
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Interface And Graphics :: System.Drawing.Graphics.DrawString On Other Window?
Aug 14, 2009drawing 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 RepliesPut Graphics Into A Variable?
Mar 11, 2010I am relatively experienced with vb.net. I am currently creating a program that outputs an image, but the image being outputted consists of text and other graphical elements.
So the text element would look like:
graphics.DrawString(text, variable, variable, variable, variable)
My problem is that I cannot create more than one set of each element that I am creating. And then put that into the code that creates the image.
Is there a way of creating this line of code and then putting it into say a variable and then putting the variable into the code where the image is created?
Convert An Object Form System.Drawing.Graphics To System.Drawing.Image?
May 23, 2009Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?
View 4 RepliesPutting A Graphics Into A Variable?
Dec 5, 2010I am currently creating a program that outputs an image, but the image being outputted consists of text and other graphical elements.
So the text element would look like:
graphics.DrawString(text, variable, variable, variable, variable)
My problem is that I cannot create more than one set of each element that I am creating. And then put that into the code that creates the image. Is there a way of creating this line of code and then putting it into say a variable and then putting the variable into the code where the image is created?
Set A Systems.drawing.graphics Brush To A Variable?
Jun 4, 2009I am coding a reversi game for my computer programming class and I need help with something. I have a list of all the systems.drawing.graphics brushes in a Combobox and I want the user to be able to pick their color. So I have the list of colors I just need to make it so I can set the color the user picks to the brush that is for his team I guess you would say.
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Convert System.Drawing.Graphics To System.Drawing.Image
Jan 20, 2010I have a System.Drawing.Graphics g, which draw something in a PictureBox. Now I want to export this pGraphics to a new System.DrawingImage pImage (or Bitmap). But how?
Dim pImage As Bitmap
Dim g As Graphics
g = Graphics.FromImage(b)
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Convert System.Drawing.Graphics To System.Drawing.Image?
Mar 10, 2010I have two graphics I'm trying to superimpose into one, then display in a DataGridViewImage cell...The Value property of a DataGridViewImage is an Image type.
Dim Image1 As System.Drawing.Image = imgl_Imagelist1.Images(0)
Dim Image2 As New Bitmap(imgl_ImageList2.Images(0))
Dim DualGraphic As Graphics = Graphics.FromImage(Image1)
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'Graphics' Not Part Of System.eventargs?
Feb 15, 2011I am researching ways to use vbTab and Tab stops to create a report in VB 10. I found some code that demostates the tab methods. When I plug the code into Visual Studio 10, I get 'graphics' not part of System.eventsargs, referring to the g.graphics.drawstring command. I have tried several different imports statements with no success.
View 5 RepliesGraphics Is Not A Member Of System.eventArgs?
Jul 11, 2011I have this codes
Private Sub Form5_paint(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Paint
Dim redbrush As New Drawing.SolidBrush(Color.Red)
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but got error "Graphics is not a member of System.eventArgs"
System Displays The Graphics So Slow?
Sep 24, 2011my system is fully designed but everytime I click a button that will to another form (which is also fully designed) the response of my system is to slow. Can you suggest anything to make it faster? I'm afraid that it will catch the attention of the panelist (I have a defense, 2 weeks from now).Here's the image which I've screen shot. Everytime I click a button it will take up to 3 seconds. Thats the sequence.
View 7 RepliesSystem.Drawing.Graphics From Scratch?
Jul 15, 2010Rather than create a Form and use Graphics generated via the CreateGraphics Method, how does a System.Drawing.Graphics Object get built?
View 16 RepliesInterface And Graphics :: Program Generated Variable Length Form?
May 10, 2011I have an existing vb.net application which uses a home grown database. The database has over 60,000 unique multi-field records in it.The user can search in each field using drill-down to find a record, and then can add that record to a separate database.(60,000 collectibles described in a master database. User can drill down by category, manufacturer, year produced, etc. to find a record and then add it to their own 'collection', 'wanted', 'have for sale', or 'spares' database for record keeping.)
Instead of having them drill down, I would like for them to be able to perform a search and have all of the results (any amount of matches from 1 to 60,000+) appear on a scrolling form with a checkbox next to each so that they can simply check any that they want and do a mass add to their list databases.
The part I cannot figure out is how to have vb.net (2008) create a variable length scrolling form with the results, and how to identify the checkboxes (generated by the system for search matches) to see which, if any, have been checked by the user.
Floodfill With A System.Drawing.Graphics() Object
Jun 7, 2011I need to make a basic drawing program in VB that can do three things:
"Draw" with a brush of some sort
Clear the screen
Perform a flood-fill (paintbucket action)
I decided to do the first two tasks first, and got them to work, but the third task completely eludes me. Every way I try seems to pile on exceptions, and every flood-fill algorithm I find seems to require a bitmap, rather than a Graphics() object. Is there any way to accomplish a flood-fill using a Graphics object, or must I restart the project using a bitmap?
Source code for reference:
CODE:
Interface And Graphics :: Get The System Folder Icon?
Feb 5, 2008i'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
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Interface And Graphics :: Menu Navigation For Large System?
May 26, 2010We 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 RepliesVS 2008 : Error1 'Graphics' Is Not A Member Of 'System.EventArgs'
Aug 24, 2009Dim instance As Graphics
Dim blackPen As New Pen(Color.Black, 3)
Dim point1 As New Point(100, 100)
Dim point2 As New Point(500, 100)
e.Graphics.DrawLine(blackPen, point1, point2)
Error1'Graphics' is not a member of 'System.EventArgs'.
VS 2010 System.Drawing.Drawing2d.Graphics Refreshing
Apr 28, 2010So basically I created Dim gr As System.Drawing.Graphics on my picturebox and I am drawing on it.
Each time I cover my window with anything or move it away from the screen whatever was covered/invisible becomes missing.
As I understand I can do:
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But I just can't figure out when should I call restore().
Tried on:
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When should I restore?
Interface And Graphics :: Display The Rgb Code Of System Colors In VB2008?
Mar 10, 2009Is 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.
Cast Array In Object Variable To Type In System.Type Variable?
Apr 14, 2010I have this function:
Public Sub DoStuff(ByVal type as System.Type, ByVal value as Object)
End Sub
The 'value' argument is always an array of the same type as 'type'. How can I loop through the values of the array?
I'd like to be able to do something like this:
DoStuff(GetType(Integer), New Integer(){1,2,3})
Public Sub DoStuff(ByVal type as System.Type, ByVal value as Object)
//Strongly types arr as Integer()
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Creating A System Variable?
Jun 10, 2011WINDOWS PLATFORM: WINDOWS 7APPLICATION LANGUAGE: VISUAL BASIC 2010 EXPRESSWINDOWS FORMS DESIGN.CONTROLS: CHECKBOXES, RADIO BUTTONSDear VB Programmers,The function of the checkbox is to: check whether the application will display a particular page @ start up or not.
View 2 Replies.net - Variable Seen As System.EventArg Which Seems To Be KeyPressEventArg?
Jun 11, 2012Private Sub RichTextView_TextChanged(ByVal sender As Object, ByVal e As
KeyPressEventArgs) Handles RichTextView.KeyPress, RichTextView.TextChanged
Dim c As Char = e.KeyChar
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The above code produces the error: Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.KeyPressEventArgs'. It throws the error at capitalise_first_letter.Add(h) (capitalise_first_letter is a List of String).
Use A Variable With System.Windows.Forms.Keys?
Apr 25, 2012I want to use System.Windows.Forms.Keys with a variable for example
shortcutkey = "A"
keydata = System.Windows.Forms.Keys.shortcutkey
The idea was to implement custom shortcuts that the user specifies to perform certain actions.
My code is like this
If (((BindingFunctions.IsKeyDown(Keys.ControlKey) AndAlso BindingFunctions.IsKeyDown(Keys.ShiftKey)) AndAlso BindingFunctions.IsKeyDown(keyData)) AndAlso (keyData = Keys.L)) Then
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Interface And Graphics :: Making A Custom Class That Mocks The System.Drawing.Rectangle Class?
Jul 6, 2010I'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)
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.net - Invoking Interface Method Using System.Object Type Variable
Jan 6, 2011I have an interface ITest with a method GetResult(). I have a class Test which implements ITest and thereby defines private method GetResult().
Next I create an instance of Test in a different class. The code is as below:
Module NewClass
Public Sub New()
Dim i As ITest = New Test()
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I am migrating existing code from VB 6 to VB.NET and hence I'm not supposed to change the access modifier of GetResult. Leaving it Private will throw InvalidCastException Unable to cast object of type 'System.Object' to type 'ITest'
Object type variable o is used in many places and hence I don't want to change that. And yes, Test implements ITest.GetMember with a different name.
Rendering Graphics Efficiently - DirectX - Graphics Card And Use Of DirectDraw Or OpenGL
Sep 23, 2011We have a GIS application that has some performance issues. It creates and sends an image to a web browser. We start with a Bing Maps imager, add complex polygons (complete with transparent fill), save the finished image as a PNG, and send it to the browser.
The idea has come up that we could possibly install a graphics card and use DirectX or OpenGL to improve performance. I believe this would be the case even though we ultimately generate an image instead of sending the data the the screen. I believe our processes could still make use of the API and the hardware acceleration it provides. Our process is not unlike what CGI film makers do to render individuals frames of a film, though we simply render a single image and send it, as opposed to the hundreds of thousands of images needed for a single CGI film.
So my question is: would a powerful graphics card and use of DirectDraw or OpenGL provide us a worthwhile performance boost? It can take us 20-30 seconds to render a more complex map. Which is a long time to wait on a web page...
Interface And Graphics :: E.Graphics.Drawstring Length Overflow Page?
Nov 19, 2010Im 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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Interface And Graphics :: Passing Bitmaps & Graphics To Subroutines As Arguments
Jan 22, 2011I 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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Interface And Graphics :: Creating A Class Holding Some Graphics?
Jan 12, 2011Ok, 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 RepliesInterface And Graphics :: Error - Graphics Paths For Designing
Oct 29, 2008Using 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'