Saving panel to file (jpeg format)

[k1_ke]

Hi guys,

I was wondering if there is a way i can save panel to a file but in jpeg format....Currently i use the following to save it bt the file size is huge....

GetPanelDisplayBitmap (video_handle, VAL_VISIBLE_AREA,VAL_ENTIRE_OBJECT, &videobitmaphandle);
 ClipboardPutBitmap (videobitmaphandle);     //copies panel bitmap on clipboard
 SaveBitmapToFile (fname2, videobitmaphandle);   //saves bitmap to file
  DiscardBitmap(videobitmaphandle);

Looking forward for a reply.

Thanks

k1_ke

[RobertoBozzolo]

Which version of CVI are you using? Starting from version 7 (or 7.1, I don't remember) the function you are using was splitted into SaveBitmapToBMPFile and SaveBitmapToJPEGFile.

It seems that you are using an older version: you can still save in jpg format using third party drivers: I am using G.Dargaud functions to save/read in PNG and JPG format.

BTW, you don't need to use ClipboardPutBitmap before saving it unless you need a copy of the image to paste in a separate application.

[k1_ke]

Hi Roberto,

Thanks for the reply. Yeah i am using 7.0......I will try the other method....m sure it will work out.

Thanks

k1_ke

[LXGPanda]

Hi, Roberto,

How can I realize this when using CVI IDE 5.0, since there is not method "SaveBitmapToBMPFile" or "SaveBitmapToJPEGFile", as in the higher version?

Thanks very much!

[RobertoBozzolo]

I have used several time the instruments supplied by Guillaume Dargaud in his website, linked in my previous post in this same thread: have you tried adding readSavePNG or ReadSaveJPEG instruments to your project? You may have problems in using the .fp directly (it seems to me that they can be used starting from version 5.5), but you should be able to call directly commands in the lib files with the supplied includes.

Give a try and let me know if there are problems.

[LXGPanda]

Hi Roberto,

Thanks very much!

I tried as you suggested, it did work.

As you said, the .fp could not been used directly since the version is 5.0, however, it did work  when directly call the commands in the lib files!

Thanks again!Best ragards!

    LIXiaogai

[LXGPanda]

Hi Roberto,
I met another problem.
I use the "graphcursors.fp" file from CVI7.0 (attached), in CVI 5.0, some of the functions could be used, such as GCC_SetCursorName (hgcc, 1, "First Cursor");  
however, some could not be used, such as GCC_New (panelre, PanelRe_Graph_tp, 0, GCC_VAL_POS_BELOW_RIGHT, 2);　Link errors happend, "Undefined symbol '_GCC_New' referenced in "Main.c".
So, any suggestions if　Ｉwant to use the funciton "GCC_New' ",
Thanks very much!

                  LIXiaogai