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
Load and save PNG in TDBRichViewEdit extremely slow
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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
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
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- Posts: 17522
- Joined: Sat Aug 27, 2005 10:28 am
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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).
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).