[VB6] - animated gif function errors:(

[jmsrickland]

                                      +---- GIF Header ---+
                                      |                   |
 Packed byte -------------------------|--------------+    | 
 Logical Screen Height ---------------|------------+ |    |
 Logical Screen Width ----------------|---------+  | |    |
                                      |         |  | |    |
                                      +---+---+--+--+-+-+-+
                                      |GIF|89a|  |  | | | |
                                      +---+---+--+--+-+-+-+    
                                                     | | | 
                                                     | | + -- Pixel Aspect Ratio 
                                                     | + ---- Background Color Index
                                                     |
 Global Color Table Size ----------------------+     |
 Sort Flag --------------------------------+   |     |
 Color Resolution ---------------------+   |   |     |
 Global Color Table Flag ----------+   |   |   |     |
                                   |   |   |   |     |
                                   |   |   |   |     |
                                   7 6 5 4 3 2 1 0   |                                              
                                  +-+-----+-+-----+  |                                                              
                                  | |     | |     | -+
                                  +-+-----+-+-----+
                                   |       |
                                   |       + --- 0 Table not sorted
                                   |             1 Table is sorted decreasing importance, most important color first.
                                   |
                                   + 
                                   1 = Global Color Table - Use next byte as index for Background Color
                                   0 = No Global Color Table - Next byte is meaningless                                     

  Size of Global Color Table       3 * (2 ^ ((Value of bits 2 1 0) + 1))

You say you are looking at a 91. Now is that a Decimal 91 (same as Ascii) or is it &H91?

Assuming it is &H91 then you have this:

91 = 1000 0001

Now look at above table I posted and you can see that the high bit is on so therefore you have a Global Color Table and because the last three bit are 001 that says you color table is only 1 which doesn't make sense.

Now if it is Ascii 91 then that means it is &H5B and 5B = 0101 1011

And that says the high bit is off so there is no Global Color Table

Which GIF file are you looking at?