stream problem

[khumbu]

I hope this isn't the wrong room..

Here i go:

 

I figured out how to use streams but i still have a small problem

Here is the code i use (it's behind a button)

It loads a bitmap puts it into a stream so i can change it.

       Dim i As Integer
       Dim mfs As FileStream
       Dim myarray(265650) As Byte
       Dim mms As New MemoryStream()

       mfs = New FileStream("WW" & 1 & ".bmp", FileMode.Open)
       mfs.Read(myarray, 1, 265650)
       mfs.Close()
 
'here i write 0 to certain the elements in the array

       For i = 13879 To 50000 Step 1
           myarray(i) = 0

       Next
       
'when i put the array in the mms it sets all the bytes starting from
13879 at 0 (until the end)
WHY? It should only do it from 13879 To 50000
       
       mms.Write(myarray, 1, 265650)

       pBox.Image = System.Drawing.Bitmap.FromStream(mms)
     

Am i missing somthing?

 

Ty for your help

Edited March 15, 2003 by Robby

[bpayne111]

the value of those bytes are 0 by default.

I'm not sure exactly what you are doing but i think that should help

[khumbu]

thx for the reply but i knew that....

 

when i find it i will post the answer for sure