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Orchid XP v8 wrote:
> So now I'm wondering if Windows provides any easy way to load and save
> bitmapped images. GDI appears to allow you to load and save in Windows
> Bitmap format - arguably amoung the worst file formats *ever*. But what
> about something more sane?
>
Are you using .NET or VB6?
You can download .NET express for free
http://www.microsoft.com/express/vb/Default.aspx
I am currently working an application in .NET that works with image
files (.BMP, .JPG, .PNG) - displays them, draws on them and saves them.
I've done it in both - without too much trouble and without DLL
hell.
.net - almost directly copied out of my application
colors a point
draws a rectangle
this is on a image in memory - it is not visible to the user
just assign the image to a image control to see it
********************************
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Private MasterImage As Bitmap
MasterImage = New Bitmap(imageFilePath, False)
MasterImage.SetPixel(x, y, Color.CornflowerBlue)
Dim graphicsDrawer As Graphics
graphicsDrawer = Graphics.FromImage(MasterImage)
Dim penZoomLines As New Pen(Color.YellowGreen, 1)
penZoomLines.DashStyle = Drawing2D.DashStyle.Dash
Dim zoomRectangle As Rectangle
zoomRectangle.X = (FullCoords.Width / MasterImage.Width) * ZoomCoords.X
zoomRectangle.Y = 0
zoomRectangle.Width = (FullCoords.Width / MasterImage.Width) *
ZoomCoords.Width
zoomRectangle.Height = FullCoords.Height
graphicsDrawer.DrawRectangle(penZoomLines, zoomRectangle)
MasterImage.Save("test.png", System.Drawing.Imaging.ImageFormat.Png)
********************************
********************************
********************************
Good luck getting your app going.
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