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1995-10-09
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2KB
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59 lines
'
'
' #####################
' ##### Code () #####
' #####################
'
' You can stop GuiDesigner from putting the following comment
' lines in callback functions by removing the comment lines in
' the code.xxx file in your \xb\xxx directory.
'
' This is a callback function that supports the grid function
' of the same name less the last 4 letters (Code).
'
' When an important event occurs in the grid function created
' from your design window, is sends a callback message to this
' function, with the original message in r1.
'
' Most callback functions process only Selection messages
' because usually that's enough to perform their function.
'
' When keystrokes are entered into a TextLine or TextArea grid,
' this callback function receives a TextEvent callback message.
' This function can prevent Keystrokes from inserting characters
' in the TextLine or TextArea grid by returning a -1 in kid.
'
' The first time GuiDesigner generates this function, it puts
' a "SUB Selection" subroutine at the bottom of the function.
' It contains a SELECT CASE block with kid constants named the
' same as the grids you put in the design window. For grids
' you didn't give a name (with the AppearanceWindow), a not
' very useful default name is substituted, so be sure to enter
' good GridNames in the Appearance window for every grid in
' your design windows. If you change the GridNames later, the
' names in the SELECT CASE block are NOT updated, and you'll
' get "Undefined Constant" errors on lines with obsolete constant
' names when you recompile the program. Then you'll have to
' update the names in the SELECT CASE block by hand.
'
' It's easy to find out what your code has to respond to...
' just run your program! When you operate the grids in the
' window, the XuiReportMessage() call in this function prints
' the entry arguments in a ReportMessage window. You can
' comment out this lines to disable this feature, but don't
' remove them entirely - it might come in handy later.
'
'
FUNCTION Code (grid, message, v0, v1, v2, v3, kid, r1)
'
'
XuiReportMessage (grid, message, v0, v1, v2, v3, kid, r1)
IF (message = #Callback) THEN message = r1
'
SELECT CASE message
CASE #Selection : GOSUB Selection ' Common callback message
' CASE #TextEvent : GOSUB TextEvent ' KeyDown in TextArea or TextLine
END SELECT
RETURN
END FUNCTION