"jiangdongjin" <[EMAIL PROTECTED]> writes: > If I omit these functions, My test .ppt file opened as fast as MS > Powerpoint(maybe 1-2 seconds slower), but all my pictures are > missing. > Hi jiangdongjin,
okay, it wasn't clear to me from your original mail that delay-loading the images is sufficient for your case (in general, it won't be sufficient to noticeably speed up PPT import - just try a 100 slide document with lots of polygonal content...). > So my plan is, in the load phase, I only load some basic infomation > like width and height of the picture(I think only these are > necessary for formatting), then display.After that if I really need > some pictures(display or operation), I import it from input stream. > Yes, that's a lot easier than delay-loading of the whole document. You'd have to extend the GraphicObject to be able to swap in from streams with a given offset (and live with the fact that some special-casing from the PPT import might no longer work - I vaguely remember MS putting whole GIFs into PNG chunks). HTH, -- Thorsten If you're not failing some of the time, you're not trying hard enough. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
