How to open wmf files?

[Otto]

WORD2007 makes for every docx also a
thumbnail.wmf .
How can I open a wmf-file?
I tried with testimg.prg but the file does not open.

Thanks in advance
Otto

[ukoenig]

Hello Otto,

after you message, I tested WMF with FREEIMAGE.dll
( needed for testimg.prg ).
The Image is not shown in the preview-window.
I had a look at the FREEIMAGE new doc.

The table with supported formats ( WMF is not included ) :



Regards
Uwe

[Antonio Linares]

Otto,

You can use FWH Class TMetaFile to visualize a WMF file. EMF files are also supported.

Please review FWH\samples\evans.prg

[Carlos Mora]

Hi Otto,

WORD2007 makes for every docx also a
thumbnail.wmf .
How can I open a wmf-file?

Can you tell me how do I get the thumbnail.wmf for a given docx? Will it work with other Office files like Excel or Powerpoint files?

Best regards,

Carlos

[nageswaragunupudi]

Code: Select all  Expand view

#include "fivewin.ch"

function main()

   local aPalBmp, oWnd

   DEFINE WINDOW oWnd TITLE "WMF-VIEWER"

   aPalBmp  := oWnd:ReadPalBmpEx( "sample.wmf" )

   ACTIVATE WINDOW oWnd ;
      ON PAINT oWnd:SayPalBmp( aPalBmp )

   PalBmpFree( aPalBmp[ 1 ], aPalBmp[ 2 ] )

return nil
 

[Carlos Mora]

Hi Nages,

quoting myself, "Can you tell me how do I get the thumbnail.wmf for a given docx?"

The point is to obtain the wmf FROM THE DOCX

[Antonio Linares]

Carlos,

I remember that I saw a very clever implementation from Otto to generate a thumbnail from any image (running app, etc) on the screen.

Basically once the image was shown, he captured the portion of the screen with the image and generated a bitmap from it.

Otto could you explain the way you did it ? many thanks

[Carlos Mora]

Hi Antonio,

It would be interesting to have the Otto procedure, having sth as automatic as posible. I'm not particulary worried about image files, making a thumbnail for an image is something more or less easy to do, imagemagic can do it's 'magic' i think.
But what i need to do is to know how to extract the thumbnails from non-image files, like MS-Word's docx or Excel's xlsx.

For docx, manually (not by program, as I want) the trick is to save it with the 'Generate thumbnail' checkbox in the "Save" dialog. Then, opening the xlsx as a zip file, you can get a wmf file.
My problem is that you have to do all this procedure by hand, i thought Otto got it by program, that is what i'm looking for.

Best regards

[hmpaquito]

Carlos,

He buscado por ahi algo. Alguna pista se puede encontrar con las palabras shellFile.Thumbnail.

Quiza ya lo conozcas.

Saludos

[anserkk]

The MS Office's documents are saved in OOXML format which basically is a zipped archive of "different files". To extract the thumb, just look in the ZIP (docx) archive for a file named "thumbnail" with whatever extension. (Currently is either thumbnail.emf (for docx), wmf (for xlsx) and jpeg (for pptx)). Also, be advised that the thumb (the file) can be missing if the user chose when he save the file from Word/Excel/PowerPoint to NOT include the thumbnail.

The Word Documents in Hard drive


The contents shown, if you try to open the Word docx file via a Zip manager application


The folder where the thumbnail file is stored



Regards

Anser

[Carlos Mora]

Hola HMpaquito,

Lo que encontré con esas palabras es todo para C# o .NET, sigo dándole vueltas a ver si pillo algo para C o, si no queda otra, C++.

Anserkk,

i've already got that, but, as you said, user should check the 'Generate Thumbnail" in the Save dialog. What i want seems that can be done with C#, but no path to write it in just C. I thought Otto already solved the issue, let's cross fingers

[anserkk]

For me, the following code used while saving the word document is working as expected ie it is showing the thumbnail

Use this to save the Word file with Thumbnail enabled

Code: Select all  Expand view

  oWord:ActiveDocument:SaveAs2( "D:\anser.docx", 16, .F., "",  .T., "", .F., .F., .F., .F., .F., 0 )

You may extract the thumbnails from the word file using the zip trick

Regards

Anser

[cnavarro]

Anser as Word is configured so that documents created by users the Thumbnail be included?

Anser, como se configura Word para que en los documentos creados por los usuarios se incluyan los Thumbnail?

[anserkk]

Anser as Word is configured so that documents created by users the Thumbnail be included?

I understand that you need to enable this "Save Thumbnail" option only once in your PC. After that word is remembering the option and is remaining as checked.

[cnavarro]

Thanks, had looked at all options
He had not looked in the dialogue "Save" and "Save As"

Gracias, habia mirado en todas las opciones
No habia mirado en el dialogo "Guardar" y "Guardar como"