I have a form which loads a scanned image of a page of paper as a bitmap from a file and scrolls ok. I would like to draw a rectangle on the image with the following code but of course the image is not saved and when scrolling occurs the rectangle is not redrawn when the rectangle scroll of...more >>

Hi! I'm compressing jpgs with C# in the standard way, and I had to realize, that the quality is pretty poor. I'd like to switch to a 4:4:4 compression (Y:U:V) I couldn't find anything on the web to change the standard encoder to do that. Is there any other dotNet library that I can use to encod...more >>

Is it possible to read an image file into a bitmap of a specific size so if the file image is 1000 pixels by 1500 it will be loaded to a smaller bitmap and shrink it in the process I can specify the exact dimensions of the bitmap Alternatively is it possible to shrink a Jpeg image without l...more >>

I would like to print a large tiff image, the size of the tiff file is about 40k but when I create a bitmap so I can print it the size of the bitmap is 40mb or possibly much more Is there any way to print an image directly from the file (currently I use PrintDocument) Thank you, Samuel ...more >>

Hi, (using vb.net 2005) How do I print a multipage tif? Thanks in advance! M O J O...more >>

I need to read a tiff Image and change it slightly. Currently I create a bitmap then I draw the original image and do the changes. Since the tiff is very large in size the bitmap takes a huge amount of memory Is there anyway to create a bitmap and keep the image compressed? Thank you i...more >>

Hello, If I have the following bitmap: Dim myBitmap As New System.Drawing.Bitmap("C:\Test.Bmp") Could somebody show me how to gradient fill this bitmap? Thanks, Rob Panosh Advanced Software Designs ...more >>

Hi, What does .NET have to read the compression technology used in a TIFF file? thx! Mars *** Sent via Developersdex http://www.developersdex.com ***...more >>

when I do this code Dim HIcon As IntPtr = bmp.GetHicon to convert a Bitmap which is just a 16x16 image I pulled from a resource originally as an icon (16x16x32bit) then converted into a bitmap to draw on it's surface then wanted to convert back to an icon... but when I do the other two comman...more >>

Hi everyone, I'm working in a MCMS 2002 site and for a template I need to create images on the fly. The image format of choice is PNG because this images had to have a transparent background and .NET doesn't go very well with transparent GIFs (black background generated instead). So everyth...more >>

I'm using float height; MeasureString(text, font, size, new StringFormat(), out charCount, out lineCount); to get number of lines, font is Ariel 9pt. Next height = lineCount * font.Height; to get rectangle height. But the height is not big enough. It's OK for 3-4 line but late...more >>

I am using GDI+ to develop a image editor. An image consists of a list of text controls and image controls. I draw everything in a picture box. I use DrawImage() to draw the image layers, but the performance is very bad, especially when the user drags an image (i have implemented a drag a...more >>

Hi; I'm build a wizard and it have a preview document, to this i used PrintPreviewControl, but don't show the document, How do it? Thanks. Alvaro....more >>

I have hundreds of directories with hundreds of images in each directory. When a user steps into the directory for the first time a thumbs.db file is created. Across a network, this can take some time. Is there a .NET Drawing or Windows API function to create these thumbs.db files in adva...more >>

If i find a piece of code I want to use in my own program on this newsgroup, what are the license terms to do so? Thanks...more >>

A C++ DLL has bits for a DIB and a BITMAPINFO structure. biBitCount is 24 and biHeight is positive, treating the DIB as bottom-up[*]. On 32-bit Windows XP and Vista systems, a C# program has Int32 variables that are actually pointers[**] and there is no problem with those. The destination DC ...more >>

I was write follow code in my product. ----------------------------------------- public void Test(Graphics g) { using (Pen pen = new Pen(Color.Red)) { pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dot; pen.DashOffset = 1; g.DrawLine(pen, 0, 0, 1, 0); ...more >>

Hi All I'm tyring to edit an animated gif and saving it back as an animated file. Can someone guide me to the write place? Thanks A...more >>

I am printing on the printer graphics. For some reason before printing (some specific parts of) and image I need to create the image on a separate bitmap which has the same resolution (not same size, which will be a parameter) of the printer graphics. This will allow me to transfer direc...more >>

I have an application that deals with records that all have an image associated with them. These images are all approximately the same size (8.5" x 11" sheet scans). What I would like to do is allow the user to select an image (don't worry about how I'll accomplish that for this discussion), and...more >>

In working with PrivateFontCollections, I recently ran into this bug: Memory corruption or an access violation may occur in a custom application that uses the PrivateFontCollection object in Windows XP http://support.microsoft.com/kb/901026 (Lots of fun with this one...) So I wanted to c...more >>

Hi All, (please excuse the cross post with csharp, i just found this group.) I am new to XAML & C#. Is it possible to display a gif animation ( such as a rotating wheel ) on a form whilst waiting for an operation to complete. I have the .gif file which works fine when viewed in Explorer but d...more >>

I copy text to the clipboard using WordPad and then retrieve it and draw it on a panel. The edges of the text looks bad. I suspect that it's the result of antialiasing and the background of the original and panel are different colors. Can you confirm that that could cause it? Can you...more >>