screen saving

 BBS: Inland Empire Archive
Date: 03-22-92 (09:27)             Number: 168
From: MARK BUTLER                  Refer#: NONE
  To: SCOTT LEVENTHAL               Recvd: NO  
Subj: screen saving                  Conf: (2) Quik_Bas

 On 03-18-92 Glenn Deneweth wrote to Scott Leventhal...

 GD>  > Once I have constructed a screen in QuickBASIC 4.0, I
 GD>  > may want to save the screen to a file, so that I can
 GD>  > 'pop' it back quickly when I need it.  How do I do
 GD>  > this?
 GD>
 GD>   I'd personally use a Library and save it into an array...but a file is
 GD> just
 GD> as easy....
 GD>
 GD> Def Seg = &HB00  'Use &H000 For monicrome
 GD> BSAVE "FILENAME.BSV"
 GD> Def seg

 I'm afraid that's not right, it should be....

 DEF SEG = &HB800 'for color cards

 or....

 DEF SEG = &HB000 'for monochrome (hercules type) cards

 Then you have to tell QB *where* to start BSAVEing (offset 0) and how
 *much* to save. For 80x25 text save 4000 for screen 1 save 16384 etc.

 So the whole thing should be rewritten like this...

 DEF SEG = &HB800  '<---- assuming a color card
 BSAVE "FILENAME.BSV", 0, 4000  '<--- 4000 if assuming 80x25 text mode
 DEF SEG           '   ^
 '^^^^^^               |
 '  |                  +---------- beginning at offset 0
 '  |
 '  restore default segment

 Sorry to rain on your parade Glenn, but Scott wouldn't have gotten
 anywhere using your method I'm afraid.

 ------------> MHB :-)


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