Load image from file

[Guest]

Hi, I need to load BMP, PNG, JPEG images from file but I don't want to use
Bitmap class. I would like to call some API function that return me an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx) and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza

 

[Chris Tacke, eMVP]

Once loaded what do you plan to do with it?

--
Chris Tacke
Co-founder
OpenNETCF.org
Has OpenNETCF helped you? Consider donating to support us!
http://www.opennetcf.org/donate

 

[Guest]

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

 

[Guest]

I've developed a small cad application and I would like to manage images.

Keven Corazza

 

[Guest]

Thank you Alex for your answer.

I've tried SHLoadImageFile and it works for JPG and GIF image but I don't
get a valid HBITMAP handle when I try to load PNG.

I need also to manage BMP and TIFF files. How can I do that ?

I've seen your function that convert HBITMAP to Bitmap but perhaps I need
the opposite. How can I convert a Bitmap to HBITMAP handle ?

Thank you again for your help.

Keven Corazza

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org

Hi, I need to load BMP, PNG, JPEG images from file but I don't want to use
Bitmap class. I would like to call some API function that return me an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx) and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza

 

[Paul G. Tobey [eMVP]]

It sounds to me like you need to buy an image management library and use
that for loading and displaying your images. I'm a little confused by what
a CAD package has to do with things like JPG images, too...

Paul T.

Thank you Alex for your answer.

I've tried SHLoadImageFile and it works for JPG and GIF image but I don't
get a valid HBITMAP handle when I try to load PNG.

I need also to manage BMP and TIFF files. How can I do that ?

I've seen your function that convert HBITMAP to Bitmap but perhaps I need
the opposite. How can I convert a Bitmap to HBITMAP handle ?

Thank you again for your help.

Keven Corazza

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org

Hi, I need to load BMP, PNG, JPEG images from file but I don't want to
use
Bitmap class. I would like to call some API function that return me an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx)
and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza

 

[Guest]

Could you suggest me some of this library ?

Thanks.

Keven Corazza

It sounds to me like you need to buy an image management library and use
that for loading and displaying your images. I'm a little confused by what
a CAD package has to do with things like JPG images, too...

Paul T.

Thank you Alex for your answer.

I've tried SHLoadImageFile and it works for JPG and GIF image but I don't
get a valid HBITMAP handle when I try to load PNG.

I need also to manage BMP and TIFF files. How can I do that ?

I've seen your function that convert HBITMAP to Bitmap but perhaps I need
the opposite. How can I convert a Bitmap to HBITMAP handle ?

Thank you again for your help.

Keven Corazza

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org


:

Hi, I need to load BMP, PNG, JPEG images from file but I don't want to
use
Bitmap class. I would like to call some API function that return me an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx)
and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza

 

[Paul G. Tobey [eMVP]]

Well, two minutes with Google gives: LEAD Tools, which I've used on the
desktop before. Very complete, there, at least.

You might also check things like magazine awards pages. This one, for
example:

http://www.pocketpcmag.com/awards/category_2004.asp?catid=46

I'm sure that there are others...

Paul T.

Could you suggest me some of this library ?

Thanks.

Keven Corazza

It sounds to me like you need to buy an image management library and use
that for loading and displaying your images. I'm a little confused by
what
a CAD package has to do with things like JPG images, too...

Paul T.

Thank you Alex for your answer.

I've tried SHLoadImageFile and it works for JPG and GIF image but I
don't
get a valid HBITMAP handle when I try to load PNG.

I need also to manage BMP and TIFF files. How can I do that ?

I've seen your function that convert HBITMAP to Bitmap but perhaps I
need
the opposite. How can I convert a Bitmap to HBITMAP handle ?

Thank you again for your help.

Keven Corazza

:

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my
post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org


:

Hi, I need to load BMP, PNG, JPEG images from file but I don't want
to
use
Bitmap class. I would like to call some API function that return me
an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work
in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx)
and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza

 

[Guest]

Have you seen the XrossOne Mobile GDI+?

http://www.xrossone.com/
--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org

Thank you Alex for your answer.

I've tried SHLoadImageFile and it works for JPG and GIF image but I don't
get a valid HBITMAP handle when I try to load PNG.

I need also to manage BMP and TIFF files. How can I do that ?

I've seen your function that convert HBITMAP to Bitmap but perhaps I need
the opposite. How can I convert a Bitmap to HBITMAP handle ?

Thank you again for your help.

Keven Corazza

You can use the SHLoadImageFile if you're running your code on PPC's:

[DllImport("aygshell.dll", EntryPoint="#75", SetLastError=true)]
public static extern IntPtr SHLoadImageFile(
string szFileName );

As for converting HBITMAP to the managed Bitmap take a look at my post:

http://blog.opennetcf.org/ayakhnin/PermaLink.aspx?guid=533715eb-898c-4f60-8560-e1ae9bed9cc3

--
Alex Yakhnin, .NET CF MVP
www.intelliprog.com | www.opennetcf.org

Hi, I need to load BMP, PNG, JPEG images from file but I don't want to use
Bitmap class. I would like to call some API function that return me an
HBITMAP variable.

I've tried with LoadImage but it seems that this function don't work in
WinCE with flag LR_LOADFROMFILE.

Then I've read something about ImageLoader.DLL
(http://msdn.microsoft.com/msdnmag/issues/04/12/NETCompactFramework/default.aspx) and I've tried to use

LoadBitmapFromFile but I get MissingMethodException.

Anyone can help me ?

Thank you in advance.

Keven Corazza