Display transparent Images in picture box

Question

Has anybody tried displaying transparent (GIF) Images in picture box ? I tried to do but it didn't work. A default background is shown instead. There was an image control in vb6 which does this job perfectly but that too not found in vb.net.

rmalli · Answer

hey vinod try this code: in this code i have use a jpg(image.jpg) image. i have written code in VB.NET GDI+. Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) Dim g As Graphics = e.Graphics ' Create an Image from a file Dim curImage As Image = Image.FromFile(image.jpg) ' Draw image g.DrawImage(curImage 0 0 curImage.Width curImage.Height) ' Create pens with different opacity Dim opqPen As New Pen(Color.FromArgb(255 0 255 0) 10) Dim transPen As New Pen(Color.FromArgb(128 0 255 0) 10) Dim totTransPen As New Pen(Color.FromArgb(40 0 255 0) 10) ' Draw graphics object using transparent pens g.DrawLine(opqPen 10 10 200 10) g.DrawLine(transPen 10 30 200 30) g.DrawLine(totTransPen 10 50 200 50) Dim semiTransBrush As New SolidBrush(Color.FromArgb(60 0 255 0)) g.FillRectangle(semiTransBrush 20 100 200 100) End Sub RAJ

rmalli · Answer

hey vinod try this code: in this code i have use a jpg(image.jpg) image. i have written code in GDI+. Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) Dim g As Graphics = e.Graphics ' Create an Image from a file Dim curImage As Image = Image.FromFile(image.jpg) ' Draw image g.DrawImage(curImage 0 0 curImage.Width curImage.Height) ' Create pens with different opacity Dim opqPen As New Pen(Color.FromArgb(255 0 255 0) 10) Dim transPen As New Pen(Color.FromArgb(128 0 255 0) 10) Dim totTransPen As New Pen(Color.FromArgb(40 0 255 0) 10) ' Draw graphics object using transparent pens g.DrawLine(opqPen 10 10 200 10) g.DrawLine(transPen 10 30 200 30) g.DrawLine(totTransPen 10 50 200 50) Dim semiTransBrush As New SolidBrush(Color.FromArgb(60 0 255 0)) g.FillRectangle(semiTransBrush 20 100 200 100) End Sub RAJ

rmalli · Answer

just simply drag a picture box control in form and pick the URL of ur transparent image. this will be work. if u don't have picture box control then customize ur toolbox and add picture box contol. i have made this is't showing any error. RAJ

erushton · Answer

I have a question regarding your book entitled: Graphics Programming with GDI+. In the book it says that Complete source code for the examples in this book (in both C# and Visual Basic.NET) is available for download at www.awprofessional.com/titles/0321160770. I have downloaded the sourcecode file chand_sourcecode.zip and I found only two vbproj project files. I was expecting a corresponding VB.NET project for each of the C# projects in the book. How do I get the VB.NET files?

Mahesh Chand · Answer

Do you have a transparent image or you want to display an image and make it transparent? If an image is transparent shouldn't you be looking at the background color of the control?