2018-06-20 22:58:05 +00:00
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;license:MIT
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;(c) 2018 by 4am
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;
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; User interface - views and paint routines for credits screen
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;
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; Public functions
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; - CreditsDialog
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;
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; View IDs (application-specific, acceptable range 0..15, no duplicates)
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ID_CREDITS_FRAME = 1
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ID_CREDITS_OK = 2
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; action keys for credits screen
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kCreditsKeys
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!byte $CF,ID_CREDITS_OK ; O
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!byte $EF,ID_CREDITS_OK ; o
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!byte $8D,ID_CREDITS_OK ; Return
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!byte $9B,ID_CREDITS_OK ; Esc
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!byte $8B,ID_SCROLLUP ; up arrow
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!byte $8A,ID_SCROLLDOWN ; down arrow
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_endCreditsKeys
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;------------------------------------------------------------------------------
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; CreditsDialog
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; call WeeGUI to create and paint credits screen, and run to completion
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;
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; in: WeeGUI initialized
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; out: exits via MainScreen
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; all registers and flags clobbered
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;------------------------------------------------------------------------------
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CreditsDialog
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ldx #$FF
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txs
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jsr HardResetWeeGUI
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jsr CreateDialog ; create decorated frame
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!word kViewCreditsFrame
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!word kStringCreditsFrame
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ldx #WGViewSetAction ; set view action (called automatically after scrolling)
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+LDADDR PaintCreditsView
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+STAY PARAM0
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jsr WeeGUI
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jsr CreateButton ; create OK button
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!word kViewCreditsOK
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ldx #WGDesktop ; paint background
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jsr WeeGUI
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jsr PaintTitleBar ; paint top title bar
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ldx #WGViewPaintAll ; paint UI controls (window frame, buttons, checkboxes, radio buttons)
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jsr WeeGUI
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jsr LoadCredits ; fetch contents for credits box
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jsr PaintCreditsView ; paint contents of credits box
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jsr ClearPendingInput
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- ldx #WGPendingViewAction
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jsr WeeGUI ; handle mouse movement and clicks
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lda $C000
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bpl -
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jsr ClearPendingInput
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jsr HandleCreditsKey ; handle keypresses
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bra -
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LoadCredits
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jsr LoadFile ; load credits file at $2800
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!word @kStringCreditsFilename
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!word $2800
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!word kProDOSFileBuffer
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bcs @NoCredits
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ldy #$20
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lda #0
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+STAY PARAM2
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ldy #$28 ; doubles as 40-column width
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+STAY PARAM0
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stz CreditsMaxLine+1
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-- lda (PARAM0)
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inc PARAM0
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bne +
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inc PARAM1
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2018-06-21 07:01:05 +00:00
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+ cmp #$0D
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beq ++ ; ignore CR entirely
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2018-06-20 22:58:05 +00:00
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ora #$80 ; set bit 7
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tax
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2018-06-21 07:01:05 +00:00
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- cpx #$8A ; watch for LF
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2018-06-20 22:58:05 +00:00
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php
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bne +
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lda #$A0 ; switch to spaces
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+ dey
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beq +
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sta (PARAM2)
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inc PARAM2
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bne +
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inc PARAM3
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+ plp
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bne ++
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tya
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bne - ; pad line with spaces until width
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inc CreditsMaxLine+1
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tya
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ldy #$29 ; reload 40-column width, +1 to compensate for DEY
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tax ; replace cached char with #$00
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beq - ; loop to store it and then resume
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++ lda mliparam+6
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bne +
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dec mliparam+7
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+ dec mliparam+6
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dec
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ora mliparam+7
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bne --
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@NoCredits
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rts
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@kStringCreditsFilename
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!byte 11
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!raw "CREDITS.TXT"
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PaintCreditsView
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ldx #WGSelectView
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lda #ID_CREDITS_FRAME
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jsr WeeGUI
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lda #$20
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sta CreditsPosHi+1
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stz CreditsPosLo+1
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stz CreditsCurLine+1
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--
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CreditsCurLine
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lda #$FD ; SMC
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stz PARAM0
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sta PARAM1
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ldx #WGSetCursor
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jsr WeeGUI
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CreditsPosHi
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ldy #$20
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CreditsPosLo
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lda #0
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+STAY PARAM0
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ldx #WGPrint
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jsr WeeGUI
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- lda (PARAM0)
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inc PARAM0
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bne +
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inc PARAM1
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+ tax
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bne -
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lda PARAM0
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sta CreditsPosLo+1
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lda PARAM1
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sta CreditsPosHi+1
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inc CreditsCurLine+1
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lda CreditsCurLine+1
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CreditsMaxLine
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cmp #$FD ; SMC
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bne --
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lda CreditsMaxLine+1 ; minimum content height
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ldx #WGSetContentHeight ; set content height so we stop scrolling on the last line of text
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jmp WeeGUI
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;------------------------------------------------------------------------------
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; internal functions
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;------------------------------------------------------------------------------
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; HandleCredits
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;
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; in: A = key pressed
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; out: all registers and flags clobbered
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;------------------------------------------------------------------------------
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HandleCreditsKey
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ldy #(_endCreditsKeys-kCreditsKeys)-2
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- cmp kCreditsKeys,y
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beq @found
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dey
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dey
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bpl -
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jmp SoftBell
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@found ldx #WGSelectView
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lda kCreditsKeys+1,y
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bpl @activateView ; ID < #$80 is a WeeGUI view, so activate it
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ldy #$FF
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cmp #ID_SCROLLDOWN ; arrow keys scroll the description box
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beq @scroll
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ldy #$01
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@scroll phy
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ldx #WGSelectView
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lda #ID_CREDITS_FRAME
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jsr WeeGUI
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ldx #WGScrollYBy
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pla
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@activateView
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jsr WeeGUI
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jmp SimulateClick
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callback_credits_ok
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jmp MainScreen
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;------------------------------------------------------------------------------
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; WeeGUI view configuration records
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kViewCreditsFrame
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!byte ID_CREDITS_FRAME ; view ID
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!byte 2 ; style (decorated frame)
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!byte 1 ; left
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!byte 3 ; top
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!byte 77 ; visible width
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!byte 20 ; visible height
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!byte 77 ; width
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!byte 100 ; height
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kViewCreditsOK
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!byte ID_CREDITS_OK ; view ID
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!byte 67 ; left
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!byte 4 ; top
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!byte 10 ; width
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!word callback_credits_ok ; callback
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!word kStringOK ; caption
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kStringCreditsFrame
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!text "Credits",0
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