Which image file formats does Image/Bitmap support?

[Peter Oliphant]

The Image class allows loading a bitmap from a graphic file. So far I've
gotten it to work with JPG and BMP files.

What other graphic file formats are supported in this way? Is this fixed
based on the .NET Framework used (e.g., the Image class defines which
formats can be used), or can different file formats be added after-the-fact
(end-user capability in contrast to developer implementation) ?

Also, is it possible to save an image in BMP or JPG or etc. graphic formats
natively (part of the language in contrast to written code or 3rd party
stuff)?

Thanks in advance for responses!

[==Peter==]

[Sheng Jiang[MVP]]

Re: Which image file formats does Image/Bitmap support?

I am not clear which image library you are talking about. C++ does not have
any built-in keywords for image processing.
If you are talking about GDI+, yes, it is the same in System.Drawing.
If you want to extend your image format support at runtime, write your own
image processing engines as plugins.


--
Regards
Sheng Jiang
Microsoft MVP in VC++
"Peter Oliphant" <peteroid69@hot mail.comwrote in message
news:BAE085E5-2A75-484D-9C45-620858B16688@mi crosoft.com...

The Image class allows loading a bitmap from a graphic file. So far I've
gotten it to work with JPG and BMP files.
>
What other graphic file formats are supported in this way? Is this fixed
based on the .NET Framework used (e.g., the Image class defines which
formats can be used), or can different file formats be added
after-the-fact (end-user capability in contrast to developer
implementation) ?
>
Also, is it possible to save an image in BMP or JPG or etc. graphic
formats natively (part of the language in contrast to written code or 3rd
party stuff)?
>
Thanks in advance for responses!
>
[==Peter==]

[Peter Oliphant]

Re: Which image file formats does Image/Bitmap support?

OK, sorry, I will try to be a bit clearer.

The following code will work, and successfully loads the image stored in an
image file into a Bitmap:

Bitmap^ image_bm = gcnew Bitmap( "image.JPG" ) ;

and this works as well:

Bitmap^ image_bm = gcnew Bitmap( "image.BMP" ) ;

but this DOESN'T work:

Bitmap^ image_bm = gcnew Bitmap( "image.TXT" ) ;

Thus, I know the language supports READING both JPG and BMP, and seems to do
so on every computer, thus it appears to accept these particular image file
formats natively (without having to install anything first).

What I'm interested in knowing is which OTHER image formats does this work
with? Equivalently, for which extensions .XYZ will the following also work:

Bitmap^ image_bm = gcnew Bitmap( "image.XYZ" ) ;

[==Peter=]


"Sheng Jiang[MVP]" <sheng_jiang@ho tmail.com.discu sswrote in message
news:A7B32D30-A906-4825-AE26-9D9A10DD7A0E@mi crosoft.com...

>I am not clear which image library you are talking about. C++ does not have
>any built-in keywords for image processing.
If you are talking about GDI+, yes, it is the same in System.Drawing.
If you want to extend your image format support at runtime, write your own
image processing engines as plugins.
>
>
--
Regards
Sheng Jiang
Microsoft MVP in VC++
"Peter Oliphant" <peteroid69@hot mail.comwrote in message
news:BAE085E5-2A75-484D-9C45-620858B16688@mi crosoft.com...

>The Image class allows loading a bitmap from a graphic file. So far I've
>gotten it to work with JPG and BMP files.
>>
>What other graphic file formats are supported in this way? Is this fixed
>based on the .NET Framework used (e.g., the Image class defines which
>formats can be used), or can different file formats be added
>after-the-fact (end-user capability in contrast to developer
>implementation )?
>>
>Also, is it possible to save an image in BMP or JPG or etc. graphic
>formats natively (part of the language in contrast to written code or 3rd
>party stuff)?
>>
>Thanks in advance for responses!
>>
>[==Peter==]

>