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I have made an ActiveX that communicates with a web camera. When the ActiveX has received an image from the camera (in jpg format) an event is sent to the VB program that uses the ActiveX. How can I show the jpg from the buffer in the ActiveX in the VB program (picturebox or image)? I do not want to save the image to disk and use the LoadPicture function in VB since the camera is streaming pictures all the time.
I made a method in my ActiveX that returned a IPicture* to the VB program and then set the Picture property of a Form to the returned pointer. This works fine but the image quality is not very good. Why?
To try this I let the ActiveX save the picture to disk (jpg file) and then create the IPicture pointer from the same data. Double clicking on the saved JPG file shows an image of the correct quality but if I load the same jpg file to the Picture property of the Form (using LoadPicture function) shows the image with less quality. Why not the same file show in different quality when showing it on the Form?
Vb forms work at 256 colours.
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The Rater
Could you elaborate it please? I didn't quite get it.
Hi,
the code you writen (that creates a IPicture from JPG file) is just that i'm looking for. Would you post it here please?
Also it will be interesting if it works with other formats (like GIF for exam).
Thanks a lot
Quite some time since I worked with this...
Well...the activex I made is not just a simple code snippet. It consists of ~40-50 files written in pure C++ (i.e. no MFC or ATL).
So if you're not familiar with COM/ActiveX programming in C++ there is no point posting the source here. Sure I could send you the source but I don't have time answering questions about it.
I am also aiming to work on video conferencing
so u r activex is of my use
if it then plz .. can u help me
by sharing it
if u want to any help from me..
i am always ready to help u
Thanx
my mail id is [email protected]/hotmail.com
Thank you. Just a minute ago i found what i've searched for.
Check it here:
http://www.codeguru.com/forum/newrep...threadid=27020
The cksiow code creates IPicture from array of bytes or from string variable. He uses OLELoadPicture and does what LoadPicture does except that the parameter isn't a filename but array.
Sorry the address was
http://www.codeguru.com/forum/showth...threadid=20900
:D