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-
- Image files
-
- You need to be aware that the AVT pays attention to the mode you are
- in when you select SAVE SSTV and LOAD SSTV from the project menu.
-
- If you are in a color mode (111, Robot composite {cmp}, AVT) then the
- AVT system will save and load all three buffers into one file.
- Depending on the particulr mode, that is, whether it is hi-res or lo-res,
- the file extension is changed between these three:
-
- .Ahi, high, and .low
-
- If you are in a B&W mode, again, depending on the resolution, the
- file extension is changed between these two:
-
- .bwh and .bwl
-
- Be careful - make sure the extension that you expected is in the
- extension box in the file requetser - if it's not, you were probably in
- the wrong mode when you selected the file requester. CANCEL the
- requester, select the proper mode for the file you are saving, and
- select save (or load) again.
-
- File Sizes:
-
- SSTv
- .bwl - 16384 bytes 32 blocks
- .bwh - 65536 bytes 256 blocks
- .low - 49152 bytes 96 blocks
- .high - 196605 bytes 768 blocks
-
- FAX
- .fax - 614400 bytes 1200 blocks
-
- Using the File Requester
-
- The file requester used in this program is a very powerful mouse driven
- type developed by Black Belt Systems for use in it's products.
-
- The file requester has three main areas. These are a LIST area, a TEXT
- area, and a CONTROL BUTTON area.
-
- The LIST area contains three independant lists. Each list is constructed in
- the same manner.
-
- There are eight available "slots" in a list. To the left of each "slot" is
- a "select button" that may be pressed to select that item in the list.
-
- To the right of each list is a standard proportional gadget, and two "arrow
- buttons". If there are more than eight entries in a particular list, then
- the knob in the prop gadget will shorten, and you will be able to scan the
- items in the list by moving the knob with your mouse.
-
- Additionally, you may choose to point at and "press" the arrow buttons,
- which will move the items through the list one at a time.
-
- Note that the "slot", or the text area, is a string gadget; you can, if a
- name in the list is too long to see, point and click within the text slot
- and use the cursor keys to scroll the item through the slot horizontally in
- order to read it in it's entirety.
-
- The leftmost list is a list of FILES that are in the currently selected
- directory. Items in the FILE list will only show if (A), they have the same
- extension as is specified in the "Extension:" field of the text area, or
- (B), if the "Extension:" field of the text area is blank.
-
- The center list is a list of VOLUMES that are currently mounted in your
- Amiga's filesystem. This list may also display any "Assigned" volume names
- active in your system if the "Assigns" control button is selected.
-
- The rightmost list is a list of DIRECTORIES that are in the currently
- selected directory.
-
- The TEXT area of the file requester contains five individual text gadgets.
- Four are for your use, and one, the "Messages:" one, is for the file
- requester's use in telling you what is going on with operations you are
- asking it to do. Those provided for your use are used as follows:
-
- PATH:
- This item is used to control where the file requester "looks" for it's
- lists of directories and files. You can type into this item at any time by
- pointing into it with the mouse and clicking once. You can also set this
- item to a particular position in the filesystem by selecting items from the
- list of DIRECTORIES, items from the list of VOLUMES, or by pressing the
- PARENT control button. If you elect to type into it, make sure you press
- one of the ENTER or RETURN keys on the keyboard when you are done editing
- the information inside the PATH item. This forces the file requester to try
- and find that directory in the Amiga's filesystem.
-
- FILE:
- This item is used to determine the actual file that the operation the file
- requester was invoked to perform will use as it's target. You can fill in
- this entry by hand, or by pressing a SELECT button in the FILE list. If you
- enter a file name in here and it does not exist in the current directory,
- then a message to that effect will appear in the "Messages:" item. If you
- have an extension specifed in the "Extension:" field, then the file name
- will NOT have it's extension in the filename area. If you do not have an
- extension specified, the file WILL have it's extension.
-
- EXTENSION:
- This is an optional field that, if filled in, will force the requester to
- only show files in the FILE list that have a matching trailing extension.
- If it is empty, then all files in the directory will show in the FILE list.
-
- COMMENT:
- This item is used to show you comments that are associated with files you
- select. If you are going to be creating a new file, or writing out an old
- one, you can enter text into this item and it will be written with the file
- as a standard AmigaDOS comment.
-
- The CONTROL BUTTON area provides seven different control operations. Each
- is defined in the following section;
-
- <---->:
- The first button will appear with different legends inside it, such as
- load, save, send, capture, and so on. Pressing this button will close the
- file requester and inform the main program that you wish to proceed with
- the chosen operation, and that you wish to use the file you selected.
-
- CANCEL:
- Pressing this button will close the file requester and inform the main
- program that you wish to CANCEL the chosen operation. The file you chose,
- if any, is ignored completely.
-
- PARENT:
- Pressing this button causes the file requester to move "back" one level in
- the file structure, unless it is already at the root of the volume it is
- working on.
-
- DELETE:
- Pressing this button will delete the file you have chosen using the file
- requester. The file requester does NOT terminate, but allows you to select
- another operation instead.
-
- SORT:
- This is a "one-shot" sort button. All three lists are sorted alphabetically
- into ascending order. Using this button can help you to easily find a file
- or directory when the lists are large and hard to manage.
-
- SORTLOCK:
- This is like the Shift-Lock key on your keyboard; if you prefer to have the
- sort function always operate when you are using the file requester, then
- press this button. Each time the file requester is brought up, the lists
- will be sorted for you. Pressing the button again will turn off the
- function.
-
- ASSIGNS:
- This button is also a lock type function. It changes the center list from
- showing only volumes to showing volumes AND "assigns". This can be handy if
- your system is heavily salted with assigned volume names. Pressing the
- button again will turn off the function.
-
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