Hi! I have a series of JPEG images I wan't to combine into one by just patching them together in a row. I code I have written now however recompresses the final ouput. Is there any "easy" way to patch my images without recompression, lossless? /Andreas Zita ...more >>

Hi I'm trying to draw a 1px horizontal line that has a sunken/bevel effect. Same style as the seperator lines displayed in a file property dialog (open Windows Explorer, right click a file, select Properties) Fairly new to WinForms, so any suggestions are appreciated. Craig...more >>

I'm using DrawImage to draw to walls, one at the top of the screen and one at the bottom. I've got an image which is 32x16 and DrawImage stretches it to ClientWidth x 16. The trouble is, it doesn't complete the end section (It seems to blend the end section with the colour it's writing over). ...more >>

Hi guys I need some help!!! Im now printing out some complex WinForm that holds various controls. This prints out prefectly but know I need to be able to save this printout as PDF??? So I like to ask you if there is some way to save the PrintDocument object as PDF??? Thanks Palli ...more >>

Hi I have a jagged array of Points, ie an array of polygons that I want to draw, using code like this, g being the Graphics object: foreach(Point[] poly in polys) g.DrawPolygon(Pens.Black, poly); My problem is that what is outputted is similar to what i would expect if I called D...more >>

Hi, Refering to the title, I am using Visual Studio .NET 2003, WInXP Pro SP2 to develop C# on PocketPC. To me surprise, I cannot locate the member function, FromFile( ) from the System.Drawing.Image class. My VS only show 8 members functions from the class; (1) Dispose (2) Equal (3) ...more >>

Hi, I created a Windows Application which accepts the filename to open and two color values. The Application opens the given bitmap file and replaces the first color with second color. I done by traversing through the pixels. After completing the whole process i have to save the image to ...more >>

I want to save an image which I converted to grayscale as a real grayscale image. When I save the image and open it in photoshop, the mode is RGB color/ 8bit. I want the mode to be grayscale. I've been searching for a solution for my problem for some time now but I can't seem to find an ...more >>

Hello, In my application I perform all the drawing operations from within the form's OnPaint method (the form is ultimately a TabPage derivative) ie protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); //the base class LayerView.OnPaint handles things like AutoScr...more >>

Folks - I've done some Google searches and come up with nothing. If this has been addressed already, please point me in the right direction. I'm creating a custom Label control for one of my projects, so I can utilize text trimming. I'm inheriting from a standard Label control and overri...more >>

Is there anyway to get an onPaint handler for a textbox? In VB 6 I would subclass the control (never done it with a textbox, but I think it would have worked), but I don't think I can do that here in .Net. Matt ...more >>

Hey, Could someone help me with the following code? I would like ObjectB to remain stationary on the panel while scrolling ObjectA, but I can't figure out how to do it. If I'm saving the Graphics state, it seems to me that any scrolling should not affect ObjectB when I draw it, but only Obj...more >>

Is there a way to create a Bitmap object and draw strings within it. Graphics g = pic1.CreateGraphics(); Bitmap b = new Bitmap(100,100, g); does not work. Or do I have to get into the nitty gritties of the Font object find the position of each pixel in it and use the SetPixel method??? ...more >>

Has anyone seen a widget app called "Konfabulator" (www.konfabulator.com). Interestingly enough it renders the new mac Tiger widgets on a Windows PC. What's most interesting is that the widgets are complex, semi-transparent shapes that reveal the windows and desktop behind them (for instance ...more >>

Hello All, I am new to the image processing things, hence this question might be a bit silly but I could not find any obvious solution.... I have an image object which is to be shown in a picturebox. The picturebox can actually change the size depending on the anchor / docking of the form....more >>

I have created a .NET control, and I want to add the ability to copy/paste the image of the control to MS Word. The tricking thing is that I want the vector image not a bitmap. Does anyone know how to do that? Bitmap PlotBitmap = new Bitmap(500, 500); Metafile mfile = (Metafile) ((Image)...more >>

Using the GDI+ Flat API, I am able to draw at 96dpi resolution to a VB6 PictureBox control, and (awkwardly) dump the image to gdi+ supported file formats, like tif. I need to create higher resolution (say 360dpi) tif files. It seems that .Net can create a high-resolution, in-memory bitmap obj...more >>

I'm using the GDI+ flat API version 5.1.3102.2180 (latest/good version? The SDK shows 5.1.3102.1360!). When I attempt to set smoothing to anything other than AntiAlias, while using a dash pattern other than solid AND the pen width is 1 pixel wide, the pattern is in inches rather than in pixels...more >>

Hi, I am trying to create a image from an xml file. Xml file has string representation of a image. here is the code snippet: DataSet ds=new DataSet(); ds.ReadXml("Northwind.xml"); string pic=ds.Tables[1].Rows[0][3].ToString(); byte[] str=Encoding.UTF8.GetBytes(pic); MemoryStream s...more >>

When I use the following code: myFont = new Font("Tahoma", 24, System.Drawing.GraphicsUnit.Point); GraphicsPath pth = New GraphicsPath(); pth.AddString("Sample", myFont.FontFamily, (int)myFont.Style, myFont.Size, new Point(x, y), StringFormat.GenericTypographic); ...more >>

Is it possible to "emulate" 3D transformation using GDI+ somehow? I would like to rotate a string around vertical axis. I know how to apply rotation transform to Graphics object, but only as 2D transform. I think this will not be possible directly, but hope there is a chance to do it using some...more >>

Hello, I have a byte[] array containing values of 0-255 representing gray levels of a picture. This has no common format (.bmp, .jpg, ...) it only stores the bytes, one per a pixel. I converted it from original matrix byte[,] so I know its real dimensions. Now, I would like to display thi...more >>

Hi all, On a panel where I initially draw a Line, I would like to : Copy the image of the Panel Rewrite the copied image back to the same panel, but 1 pixel to the left of it origin position. Feel like I've tried everyting, but nothing seems to be correct. I'm sure I'm missing something ob...more >>

Hello, I have a bitmap. I use DrawImage() method to show the bitmap. It can scale the picture according to the destination rectangle.. DrawImage( image, scaleToRectangle, 0, 0, imageWidth, imageHeight, Pixel, imageAttributes ); The scaled picture is smooth and its origin...more >>

Hi, I am trying to create a image from an xml file. Xml file has string representation of a image. here is the code snippet: DataSet ds=new DataSet(); ds.ReadXml("Northwind.xml"); string pic=ds.Tables[1].Rows[0][3].ToString(); byte[] str=Encoding.UTF8.GetBytes(pic); MemoryStream s...more >>

(Type your message here) -------------------------------- From: jay jay hi got the same error, byte[] imByte=Convert.FromBase64String(Imagetext); Bitmap b = (Bitmap)Bitmap.FromStream( new MemoryStream(imByte)); // This line is throwing error. Somebody please help me. ---------------...more >>

Hi, I'd lik to know how to get the compression type (LZW, CCITT, RLE, etc) used in a bitmap file. Thanks...more >>

Hi. I'm loading bitmaps into memory, and then I need to save them to a stream. The problem is, that when I save the bitmaps to a stream, it gets much bigger (in kilobytes) than if I save the same bitmaps directly to a file. the bitmaps are about 2500x3500 pixels. For instance, the following...more >>

SGkgQWxsLA0KDQpUbyBwbG90IGEgY2lyY2xlIHdpdGggY2hhbmdlYWJsZSByYWRpdXMgYnkgbW92 aW5nIG1vdXNlIG9wZXJhdGlvbiwgSSBhbHdheXMgd3JpdGUgInBEQy0+U2V0Uk9QMihSMl9OT1RY T1JQRU4pIiBpbiBWaXN1YWwgQysrLiBNeSBxdWVzdGlvbiBpcyBob3cgdG8gcmVhbGl6ZSBpdCBp biAuTmV0IChJJ20gdXNpbmcgVlMgMjAwMykuIFRoZSBmb2xsb3dpbmcgaXMgYSBzZW...more >>

Hi there, Does someone know how to draw a splitter line similar to the splitter line in the Visual Studio .Net IDE, or the splitter control? I'm aware of the DrawReversibleRectangle function for drawing rubber-band or drag/focus lines, but the splitter line from the Visual Studio IDE (or t...more >>

Dear Ng, is it possible to modify the look (e.g. the backcolor) of the menu bar (The one with File, Edit, View, etc..) after I've added it to MyForm? Many thanks and best regards, Patrick...more >>

Hello , I recently posted a question regarding the apparent poor drawing speed of GDI+ and received valuable assistance regarding strategies that involved double buffering... It is only fair to report that since I have removed alot of debug type code (eg Console.WriteLine(........) th...more >>

Hi all Here is my problem I want to create an image so i can pass it on an object to put it as watermark in my pdf report Here is what i have write so far Dim objBitmap As System.Drawing.Bitmap Dim objGraphics As System.Drawing.Graphics Dim cstream As System.IO.MemoryStream Dim ...more >>

I have used this code... //'get original bitmap Bitmap myBitmap = new Bitmap(Server.MapPath("CompanyProfileLogo/" + cid + ".gif")); //'create thumbnail from the orginal bitmap Bitmap myThumbNail = new Bitmap(myBitmap, 120,90); //'Set the content type Response.ContentTyp...more >>

I'ld like to draw a bar in a windows form (C#) with a similar look and shading of the Windows XP themed titlebar. Anyone have some code to do this? Regards, - Mike ...more >>

How come the following snippet compiles: Using System.Drawing; public const GraphicsUnit DISPLAY_UNIT = GraphicsUnit.Point; public static readonly Color PRINT_COLOR = Color.Black; while this snippet fails: Using System.Drawing; public const GraphicsUnit DISPLAY_UNIT = G...more >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>