MFC CreateDIB and C#

[Mark G]

Hi, with MFC I use the following to display and save a 2
pixels per byte raw image;

m_hDIBTemplate = CreateDIB(unpackedimage, 96, 96);
CreateDIBPalette(m_hDIBTemplate, &Palette);
hPal = (HPALETTE) Palette.m_hObject;
PaintDIB(TheDC.m_hDC, &frame, m_hDIBTemplate,
&templateDIBrect, &Palette);
stat = SaveDIB(m_hDIBTemplate, myfile);


How can I accomplish the same thing using C# and webforms?

Thanks

 

[Dmitriy Lapshin [C# / .NET MVP]]

Hi Mark,

Reference System.Drawing.dll from your Web app.
Create a Bitmap instance having required size and pixel format by using an
appropriate constructor.
Create a Graphics instance with its static FromImage (or FromBitmap, don't
remember exactly)
Do the necessary drawing and save the bitmap with its Save method

P.S. The names of the methods might be inexact, but the general idea is like
this. One more important note is to ensure the Web app has enough
permissions to create files on disk (and to do so in a particular folder).

 

[Mark G]

Hi, Thanks for your reply but I stil can't get anywhere.
What I have in C# is a byte array of a raw image that
comes from a hardware dvice. In MFC all I did was to call
createDIB(ImageArray,96,96) and I could essentially view
or save the image. How can this be done in c#? Again,
thanks.

-----Original Message-----
Hi Mark,

Reference System.Drawing.dll from your Web app.
Create a Bitmap instance having required size and pixel format by using an
appropriate constructor.
Create a Graphics instance with its static FromImage (or FromBitmap, don't
remember exactly)
Do the necessary drawing and save the bitmap with its Save method

P.S. The names of the methods might be inexact, but the general idea is like
this. One more important note is to ensure the Web app has enough
permissions to create files on disk (and to do so in a particular folder).

--
Sincerely,
Dmitriy Lapshin [C# / .NET MVP]
Bring the power of unit testing to the VS .NET IDE today!
http://www.x-unity.net/teststudio.aspx

Hi, with MFC I use the following to display and save a 2
pixels per byte raw image;

m_hDIBTemplate = CreateDIB(unpackedimage, 96, 96);
CreateDIBPalette(m_hDIBTemplate, &Palette);
hPal = (HPALETTE) Palette.m_hObject;
PaintDIB(TheDC.m_hDC, &frame, m_hDIBTemplate,
&templateDIBrect, &Palette);
stat = SaveDIB(m_hDIBTemplate, myfile);


How can I accomplish the same thing using C# and webforms?

Thanks

.

 

[Joel Lucsy]

Hi, Thanks for your reply but I stil can't get anywhere.
What I have in C# is a byte array of a raw image that
comes from a hardware dvice. In MFC all I did was to call
createDIB(ImageArray,96,96) and I could essentially view
or save the image. How can this be done in c#? Again,
thanks.

You want something like:

IntPtr data = /*data from hardware*/;
Bitmap bmp = new Bitmap( 96, 96, 96*4, PixelFormat.Format32bppRgb, data );

However, don't quote me as I'm reading straight from the docs without
trying it.