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all groups > dotnet drawing api > may 2005 > threads for may 8 - 14, 2005

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draw line?
Posted by Saladin at 5/14/2005 12:00:00 AM
hi Guys Using VB.Net, Winforms. Just starting out so bear with me. I can't locate a control to simply draw a horizontal line (or vert). Just want to draw a line on a form. Actually just want to separate a few labels with something like a line, but can't figure how to do it. Do I need code f...more >>

Replace pixel color
Posted by Mark Heath at 5/13/2005 4:51:03 AM
I have some PNG files containing icons that are entirely one color - a forground color of gray and a transparent background. I have loaded these into Bitmap objects that I am painting using the DrawImage command. I would like to sometimes paint the same icon, but with a different foreground co...more >>

BarCode
Posted by Josh at 5/13/2005 12:00:00 AM
I'm sending a Barcode image to a PDF. On some printers if prints fine, on others its all speccy and mushy looking. Now the Image format I'm using Jpeg, can a Jpeg be reduced to 2 colors and no antialiasing? ...more >>

Poor drawing speed due to C# or GDI+ ? (Important issue)
Posted by Andrew at 5/12/2005 9:13:01 PM
Hello , GDI + seems a well designed and easy to use graphics platform. I am using GDI+ to write the graphics module of a construction based application that also involves a data entry forms module and database module amongst others. I completed the data entry and database modules using...more >>

OnPaint Function Issue
Posted by Andrew at 5/12/2005 8:41:01 PM
Hello, I have a couple of drawing routines that involve drawing basic shapes and I am calling these routines from the my views OnPaint handler . This view class (BuildingView), is a derivative of a generic view class (LayerView), which is itself a TabPage derivative). Other views (C...more >>

How to fill space between two rectangles
Posted by BPatel at 5/12/2005 10:28:32 AM
Hi, I need to fill space between two rectangles with different color. Small rectangle is within the big rectangle. Please let me know how to do it in C#. I could not find a way to get the region of outer Rectangle which is not intersected with the smaller rectangle. Thanks, bpatel ...more >>

passing IMAGE to FreeImage function
Posted by Sanjay at 5/12/2005 12:00:00 AM
hi, how can I use FreeImage in .Net..Their functions like freeimage_adjustContrast ask a parameter "dib" How can I obtain the same from Image in .net. I m working in VB .net Any help is appreciated. thanks sanjay ...more >>

drawing lines between objects.
Posted by WAkthar at 5/12/2005 12:00:00 AM
I have a picture control to which I've added icons in different parts of the control. I also have modeless dialogs which appear when a user clicks on these icons. I need to be able to draw a line from the icon to the dialog, and when the user moves the dialog, redraw the line so it is always ...more >>



Drawing border around control
Posted by Steve Severance at 5/11/2005 11:50:02 AM
I am building a GUI that allows the user to move controls around at runtime. At present the can only move controls derived from a base class MyContatiner. These containers are higher level controls that contain the basic windows controls. I want to draw a border around the container and then h...more >>

Save / Write a PCX file from an Image
Posted by garyalfred at 5/11/2005 11:29:04 AM
I need to write out an 8bit PCX file from an Image or Bitmap object i've created using a GraphicsPath. I had hoped it would be as easy as saving it out using an ImageFormat member, but alas there is no PCX ImageFormat member. >From what I can tell I am going to need to construct this file one ...more >>

Specifying a particular Font
Posted by Eric NO[at]SPAM PWS at 5/11/2005 11:24:01 AM
Hi. I want to use Helvetica Black with the Systems.Drawing (GDI+) library. I know how to use Helvetical bold (font family Helvetica + style Bold), but is there any way to specify a non-bold but bold-related font such as Semibold, Extrabold, or Black? Thanks Eric -- Eric Valinsky P...more >>

Draw windows controls
Posted by Dees at 5/11/2005 4:10:03 AM
Hi, I need to draw the TextBox, OptionButtons, CheckBoxes etc. controls. I do not need to customize any of their default display properties - I just need to draw the controls as they appear at runtime - very basic requirements - it just has to be of defined length and should contain the spe...more >>

Using autoscroll
Posted by Steve Magoon at 5/11/2005 12:00:00 AM
I would like to autoscroll objects as I select them (via hit testing), separately, on a panel. In other words, if I select drawing (A) with the mouse, then the autoscroll function would apply only to that object. Is this possible with autoscroll, or is there a better way? I have several object...more >>

Join two images
Posted by dave bray at 5/11/2005 12:00:00 AM
I can join two images together (transparent gifs) by drawing them on a form; and the saving the form; I want to join images from within an asp page, and don't want to use a form currently i do this; ===================================================================== ' api supporting fu...more >>

Tiff manipulation, how to change byte order?
Posted by Frank Jones at 5/10/2005 10:14:01 AM
In .NET framework is there a way to control the byte order in a Tiff image file? In other words, to control whether the Tiff file is in intel byte order (little endian) or motorola byte order (big endian)? We have seen other posts on the issue but have not seen any solutions. An example post...more >>

HELP! How to read in EPS files? Will PAY $$ for a solution
Posted by Sam Hulick at 5/9/2005 9:34:43 PM
Crap, I'm in a serious bind. I have thousands of images that need to be resized and saved as jpeg. I wrote a tool in C#.NET using the ingenious GDI API. Problem is, this statement bombs on an EPS file: Image img = Image.FromFile(filePath); Bad. Very bad. ALL these files are EPS fi...more >>

Where does Application.ProductVersion come from
Posted by Rachel Suddeth at 5/9/2005 8:34:12 AM
I think it will be the AssemblyVersionAttribute from the executable assembly, but I can't seem to find that documented anywhere... -Rachel ...more >>

Drawing Lines between Datagrid Elements
Posted by Thom Ellis at 5/9/2005 5:29:22 AM
I have a web client form written in Flash that allows me to create a datagrid with 15 number of rows and 15 columns per page. The web client form receives data from several different .NET web services using XML before populating the web client form. Elements within the datagrid may or may not have ...more >>

Moving an image around in a picture control
Posted by WAkthar at 5/9/2005 12:00:00 AM
Hi, I have a picture control which holds a bitmap (map of the UK). I also have draw small images on this bitmap and would like to be able to move the images around the map by selecting them and moving them with the mouse. Can someone show me please? Are there any examples on the web please?...more >>

Lines
Posted by Dan at 5/8/2005 4:33:32 PM
I have webpage with several controls arranged as in an organizational chart. Is there a way to connect these controls with lines? Rectangular coordinates? Angular coordinates? VB in ASP.NET Thanks. ...more >>


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