Locate

[Walt Decker]

Does LOCATE default to "SCREENY" size?

The reason I ask is based on the following code:

    GOSUB Check_Cursor
    INCR LineY
    INCR LineC
    IF LineC > tC.NumDatas THEN LineC = tC.NumDatas
    IF LineY >= tC.NumDatas + 1 THEN
      LineY = tC.NumDatas + 1             ' strange behavior here
      LOCATE LineY, LineX                   '
      EXIT SELECT
    END IF
    IF LineY > ConsY - 1 THEN
      A$ = SetHeads(tC.NumHeads, tF(), Dhead$())
      COLOR 7, 0
      CLS
      LOCATE 1, 1
      PRINT A$;
      Char = LineC - (ConsY - 2)
      IF Char < 1 THEN Char = 1
      LineY = 2
      FOR I = Char TO LineC
        LOCATE LineY, 1
        PRINT Ddat$(I);
        INCR LineY
      NEXT I
      DECR LineY
      LOCATE LineY, LineX
      COLOR 7, 4
      EXIT SELECT
    END IF
    LOCATE LineY, 1
    PRINT Ddat$(LineC)
    LOCATE LineY, LineX

When tC.NumDatas is greater than the number of rows for the console, the cursor is set at the number of rows in the console.

[Richard Angell]

PB Help Manual, LOCATE topic (emphasis added):
If either expression is missing or invalid, that particular coordinate is left unchanged.

Since LOCATE is based on the console's actual screen rows and columns setting, then trying to exceed the count in either would be invalid.

[Walt Decker]

Thanks, Richard. I missed that in the docs. Gotta learn to read.