TRichView.com

Hello Sergey,

Windows 7, Delphi 2010, RichView 13.8

First of all: TDBRichViewEdit works great!

Now my problem:
When loading a PNG graphic (160 KB) into the TDBRichViewEdit (with a simple line of text) and saving the record this takes 62 seconds! Loading takes 20 seconds.

With Paint I converted the PNG graphic to a JPEG which then has a size of 387 KB. Saving in the identical record takes less than 1 second, and also loading is not measureable.

In the support forum I found hints to use:
Classes.RegisterClass(TPngImage);
CRVData.RV_RegisterHTMLGraphicFormat(TPngImage);
CRVData.RV_RegisterPngGraphic(TPngImage);

I tried all that, but it makes no difference. Must I set some addional flags (e. g. rvrtfSaveBitmapDefault) or something like that?

Do you have any advice?

Thanks in advance
Joe

What's the saving format? RTF or RVF?
Can you send the field content with this PNG (saved as a file using BlobField.SaveToStream(FileStream) to richviewgmailcom?)

Hello Sergey,

the field format is rvdbRVF.

All further information is now send to you by email.

Best regards
Joe

Answered by email.

Very detailed information! Great support!

Thank you
Joe

Hi,

Is it possible to provide the information to the public?

With kind regards,
Ruediger Kabbasch

Hello Ruediger,

yes, of course it might be interesting to the public. The problem was caused by the datatype! of the underlying database field.

In this context I ran into another problem, caused by the datatype, too.

See my last answer in the following topic:
http://www.trichview.com/forums/viewtopic.php?t=5379

Best regards
Joe

Thanks!

There were 2 problems

1) Because of "Unicode memo" field type, data were saved as RTF converted to Unicode string. Pictures in RTF ==> twice in size. RTF to Unicode string ==> twice in size. As a result, a picture is increased by 4 times from the original size.
2) Due to property setting or due to the insertion methods, the picture was saved not as PNG but as a metafile containing bitmap (large size).