Re: PCT's CGA Screen

[steve@dosius.zzn.com (Dosius)]

"Bryan Parkoff" <BParkoff@satx.rr.com> wrote in message news:<L6ednRXjHcc4A8-jXTWQlg@giganews.com>...
> Thank you for the information, but it does not provide me enough
> information.  After dump video memory into filename, which extension should
> be used?  Is it .Fnt or .Bmp, or etc?  I understand that CGA 8x8 pixel font
> contain 8 byte each 80x25 character.

It's a BSAVE file, use any extension.  QBasic will default to .bas
(!).  There's about 7 bytes of junk (the load address, etc.) at the
beginning, followed by the data.  In text mode this is two bytes per
character location (ASCII character, followed by color attribute),
linear (line 2 comes directly after line 1, etc.).  In graphics mode
this is somewhat like the Apple (and the two modes 320x200x4 and
640x200x2 use the same format).  I don't know about it.

You can read the character at a certain location with SCREEN(y,x) and
the pixel at a certain location with POINT(x,y).  See the QBasic
online help for this, if you have it.  (Same for GW)

-uso.