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Posted 27 Apr 2004

How to use GDI+ to save image in WMF, EXIF or EMF format

, 27 Apr 2004
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An article on GDI+ and how to save image in WMF, EXIF or EMF format.


When I use the Image::Save() function in GDI+ to save an image as BMP, GIF, TIFF, PNG or JPEG, the program works very well. But it fails to do so if I want to save an image as WMF, EXIF or EMF.

The reason of such a case has been well explained in MSDN.

However, I also found that in C#, we could use Image::Save() function to save an image as WMF, EXIF or EMF format, with no pains.

Finally, Feng Yuan helped me out of this problem. Thanks a lot for him.

The solution

Actually, the solution code is quite simple. First, construct a Metafile object and then draw graphics on it. For example, we can have:

Bitmap* m_pBitmap;
// do some paintings on m_pBitmap
CString sFileName = "c:\\1.emf";
// you can use "c:\\1.exi" or "c:\\1.wmf" here,
// and you can also build it as IStream
CDC *cdc = GetDC();
Metafile *metafile = 
         new Metafile(ToWChar(sFileName.GetBuffer(sFileName.GetLength())), 
Graphics graphics(metafile);
graphics.DrawImage(m_pBitmap, 0, 0, m_pBitmap->GetWidth(), 

Then, we can find the resulting image on driver C:. Simple, isn't it? Here, ToWChar() is a simple function to transform a CString object to WCHAR*. It can be written as:

static WCHAR* ToWChar(char * str) 
  // in GDI+, all the parameters about the symbol are WCHAR type
  // this funciton is a tranformation function

  static WCHAR buffer[1024];
  return buffer;


  • Initial release 2004-04-27.


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Comments and Discussions

SuggestionThe following code works and looks more simple Pin
Miller Chan12-Feb-16 16:42
memberMiller Chan12-Feb-16 16:42 
GeneralImage->Save Pin
Ziggy Short21-Feb-05 7:31
memberZiggy Short21-Feb-05 7:31 
GeneralRe: Image->Save Pin
TeleStar22-Feb-05 6:38
memberTeleStar22-Feb-05 6:38 
QuestionHow to save GDI+ bmp file as PDF File Format. Pin
pubududilena13-Jul-04 20:52
memberpubududilena13-Jul-04 20:52 
AnswerRe: How to save GDI+ bmp file as PDF File Format. Pin
Miller Chan12-Feb-16 16:27
memberMiller Chan12-Feb-16 16:27 
QuestionHow to save GDI+ bmp as CMYK color GDI+ bmp Pin
pubududilena28-May-04 0:42
memberpubududilena28-May-04 0:42 
AnswerRe: How to save GDI+ bmp as CMYK color GDI+ bmp Pin
sanull14-Mar-06 0:28
membersanull14-Mar-06 0:28 
GeneralDownload GDI+ version 1.1 Pin
pubududilena23-May-04 18:47
memberpubududilena23-May-04 18:47 
QuestionHow to save GDI + bmp Image as Interlaced PNG file Format. Pin
pubududilena20-May-04 1:49
memberpubududilena20-May-04 1:49 
AnswerI think you need libpng Pin
TeleStar20-May-04 8:07
memberTeleStar20-May-04 8:07 
QuestionHow do I save Images as EPS File Format Pin
pubududilena29-Apr-04 0:54
memberpubududilena29-Apr-04 0:54 
AnswerEasy, please read Jonathan de Halleux's nice article "Crossing the bridge between Ghostscript and GDI+" Pin
TeleStar29-Apr-04 7:34
memberTeleStar29-Apr-04 7:34 
GeneralRe: Easy, please read Jonathan de Halleux's nice article "Crossing the bridge between Ghostscript and GDI+" Pin
pubududilena29-Apr-04 18:09
memberpubududilena29-Apr-04 18:09 
Generaloops, for the inverse rendering Pin
TeleStar30-Apr-04 6:57
memberTeleStar30-Apr-04 6:57 

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