Hi, I'm currently drawing a bitmap to a panel and have just written a zoom function that allows me to increase the size of the bitmap, which in turn changes the autoscroll property of the panel. I'd like the user to be able to click on the panel and where they have clicked zoom in on that co-...more >>

I have a multi-threaded managed MFC C++ application that is using GDI+ through .NET. I am loading successive JPEGs into a Bitmap object in one thread and displaying them into a Windows Forms PictureBox control in another thread. Mutexs have been put in place to protect the Bitmap object and Pi...more >>

I have created a transparent control and I am using to to create drawing objects Inside the transparent objects I have created I am trying to using the draw shapes oval, rectangle etc. An example would be like in word are when you drag an oval onto the screen, the drawing resizes as the control do...more >>

My application have many picturebox objects,when run it ,sometimes i will have a strange error,how to work out ,help me please!(in windows98,the error cause frequently than in windowsxp System.InvalidOperationExceptionSystem.InvalidOperationException: The object is currently in use elsewhere...more >>

I making a Picture program where I want users to draw a rectangual to select what they want to Crop in a picture. In my currently solution I'm having problem with the crop resutl having more of the picture on the right/bottom side that I selected with the rectangular. Here is what my routines ...more >>

I have a BMP file save to disk. I want to be able to load it, resize it to a specific size (by stretching it and maintaining the aspect ratio), and then saving it under a different name. How can I do this with VB.NET? I have tried several different things by using StretchBlt and I can't g...more >>

Any ideas for transitioning between forms to prevent flicker? tia ...more >>

Hi , I want to know whether we can use dotnet drawing namespace to create a custom design configurator application for windows or doors.This application needs to be a web application. The functionality would be 1) Start with some basic designs like ( rectangle , square etc) 2) Drag and dr...more >>

Hi- Does anyone know how to take a screen scrape of a web page and convert = it to a thumbnail image?=20 I don't know where to start. Thanks in advance, Curtis...more >>

Hi All I'll try to describe my problem as clearly as I can without being able to illustrate it.. I am doing a fill on a form with a gradientbrush. My brush rectangle is as tall and wide as the diagonal measurement of my target form - so I can use a RotateAt to rotate the background to any angle...more >>

Hi , I want to know whether we can use dotnet drawing namespace to create a custom design configurator application for windows or doors. The functionality would be 1) Start with some basic designs like ( rectangle , square etc) 2) Drag and drop some shapes in to the basic designs so the basic ...more >>

Hello I am trying to draw (at runtime) images of what a .NET control would look like. So what I am attempting to do is getting the Graphics object using the CreateGraphics function from the Control. What i cannot figure out, is once I have the Graphics object, how to get a System.Drawing.Image fr...more >>

Hi All, I'm having some difficulty with a graphics issue. I'm not certain I'm approaching the problem the right way... Basically what I need to do is bisect the client area of my form and fill each half with a gradient. BUT, I need to be able to bisect the form at any angle. RotateAt see...more >>

Hi again! I've spent a whole day on tryining to get ExtTextOutW to work. I've found out a lot of things, and it works in VB6 with ExtTextOutA, but I still have problems on VB.Net. It's not possible to pass the font to the function. In VB6, the function uses the font and colors of the Pict...more >>

System.Drawing.Image image = null; MemoryStream m = new MemoryStream(); image = System.Drawing.Image.FromFile(myTIF); image.Save(m, ImageFormat.Gif); Context.Response.BinaryWrite(m.GetBuffer()); The above code works but bottom of the picture is missing. If TIF is small (<75K) all is OK b...more >>

Hi, I'm currently trying to let a string scroll over a picturebox by repeatedly drawing it at changing positions. This is basically the code i'm using: m_gfx.Clear(m_colBackground); iPos -= 5; if(iPos < (0 - iTextWidth)) { iPos = m_iWidth; } Rectangle myRect = new Rectangle(iPos, 1...more >>

Hi, I have a bitmap object that is very high resolution and it takes up 20mb. I want to reduce the color depth to be 2 colors in order to reduce the file size. Any ideas on how? I am using C# Regards Mike ...more >>

My application have many picturebox objects,when run it ,sometimes i will have a strange error,how to work out ,help me please!(in windows98,the error cause frequently than in windowsxp) System.InvalidOperationExceptionSystem.InvalidOperationException: The object is currently in use e...more >>