how Save a BitMap in 8,16,32 bits

Question

0.00/5 (No votes)

See more:

hi guys,
i have a problem with my project
in this momment im trying to save a bitmap with this syntax
the app is in VB.NET (VS 2010)

VB.NET

Private Function getImage(rect As Rectangle, penWidth As Integer)
Dim bitmap As New Bitmap(rect.Width, rect.Height)
Dim brush As New SolidBrush(Color.White)
Dim graphics As Graphics
graphics = graphics.FromImage(bitmap)
graphics.FillRectangle(brush, 0, 0, rect.Width, rect.Height)

Then i save the bitmap:

VB.NET

bitmap.Save(saveLocation, Imaging.ImageFormat.bmp)

then in other Application developed in VB 6.0

i trying to generate a Report with the image Saved.

i use this syntax in the VB 6.0 App

VB.NET

Printer.paintPicture LoadPicture(Savedlocation,....)

then is in the line shown above when the Error:
"Invalid Pucture"
i think . is a problem with the Bits of Bitmap... i think

thanks por the help
regards from Mexico

Posted 15-Nov-12 12:14pm

Rene Bustos

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Christian Graus · Answer 1 · 2012-11-15T12:18:00

Solution 1

Does Paint open the image ? Is it named .bmp ? Why would you use VB6 at all ? The Bitmap constructor is where you specify a bit depth for your image.

Posted 15-Nov-12 12:18pm

Christian Graus

Comments

Rene Bustos 16-Nov-12 10:25am

Thanks for Answer Christian Graus.
1)Yes, when i do right click an open woth PAINT, this open the image correct.
2)Yes, when i used this sintax bitmap.Save(saveLocation, Imaging.ImageFormat.bmp) , the image is saved in BMP format
3)well, in our company we have an application that was made in VB 6.0. this app has a lot of modules.. so.. is hard to migrate to .NET, that system has 8 years. and the Tablet only has a .NET SDK.
4)Yes it is, but i dont understand yet. how can i know if the image created is 8 bits , 16 bits 32, bits... because.. in the VB 6.0 app.. it appear that only supports 8 bits image in format BMP and WMF.

i trying to create a image in PNG format to.. because i need a background with transparency... for the signature.
Thanks in advance

Christian Graus 16-Nov-12 10:35am

There's a bitmap constructor that takes a bit depth, that's how you specify the bit depth of the image.

Rene Bustos 16-Nov-12 10:54am

ok.. let me check that option. thanks Chistian
regards from Mexico