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hey all, Working with a graphics app in VB for the frist time (usually dont use VB).
Basically, I want to open a file (that contains seperate forms of data, sounds, images etc.) Then, *without* dumping into a temporary file or anything, i want to load an image from it. I know the format very well, so i know where all images and such are. This should be possable right? If not I'm kinda screwed, the other language i develop in can do this, but doesnt off win32 interface.
Note, in VB file positions are one-based! Not zero-based in languages such as C/C++.Code:Dim iFileNum as integer
Dim sMemBuf as string
Dim lMemSize as long, lStartPos as long
iFileNum = freefile
open "myfile.ext" for binary as #ifilenum
lmemsize = <whatever you set it>
smembuf = space$(lmemsize)
lstartpos = <something>
get #ifilenum, lstartpos, smembuf
close #ifilenum
In this example I'm using a string as a buffer to store data into. It can even hold non-ascii characters and doesn't convert returns to Windows-format.
Since you know the used file format well, you should be able to determine what the memsize and startpos will be.
w00t. Ok, hehe, ill humor you some more with my lack of VB experience. How could i get this into a picturebox, without saving it..or hell, with saving it if i have too :)
Read until you are the offset into the file where the graphic starts.
Then write the graphic to a file.
Assuming the graphic is of a type Windows COM controls can use then do
Code:' with a picture box on the form
Picture1.LoadPicture "filename"