MapleLibName - Maple Programming Help

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MapleLibName

set or query libname in external code

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

MapleLibName(kv, val)

Parameters

kv

-

kernel handle returned by StartMaple

val

-

expression sequence object containing strings

Description

• 

This function is part of the OpenMaple interface to Microsoft Visual Basic.

• 

The MapleLibName function returns the currently assigned value of libname, which controls the location of Maple libraries. If val is not 0, then it also tries to assign libname:=val.

• 

Never directly modify the expression sequence returned by MapleLibName. Always create a new expression sequence to change the value.

Examples

Sub MyLoadPackage(ByVal kv As Long)

    Dim mylib As String

    Dim n, i, libname As Long

    ' find the maple directory

    mylib = MapleToString(kv, MapleKernelOptions(kv, "mapledir", 0))

    mylib = mylib + "tool_lib"

    ' get the current value of libname

    libname = MapleLibName(kv, 0)

    ' copy the current value into a new expression sequence with

    ' room for one more entry.

    n = MapleNumArgs(kv, libname)

    newlibname = NewMapleExpressionSequence(kv, n + 1)

    For i = 1 To n

        MapleExpseqAssign kv, newlibname, i, MapleExpseqSelect(kv, libname, i)

    Next i

    ' append the tool_lib directory to libname

    MapleExpseqAssign kv, newlibname, i, ToMapleString(kv, mylib)

    MapleLibName kv, newlibname

    EvalMapleStatement kv, "libname;"

End Sub

See Also

exprseq

OpenMaple

OpenMaple/VB/API

OpenMaple/VB/Examples

 


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