__MVSCOPE()

If variable exists then returns its scope.

Syntax

__MVSCOPE( <cVarName> )

Arguments

<cVarName> = a string with a variable name to check

Returns

The symbolic values are defined in include/hbmemvar.ch HB_MV_NOT_FOUND =variable is not declared (not found in symbol table) HB_MV_UNKNOWN =if variable doesn't exist (but found in symbol table) HB_MV_ERROR =if information cannot be obtained (memory error or argument error) HB_MV_PUBLIC =for public variables HB_MV_PRIVATE_GLOBAL =for private variables declared outside of current function/procedure HB_MV_PRIVATE_LOCAL =for private variables declared in current function/procedure
Examples

PROCEDURE MAIN() PUBLIC mPublic PRIVATE mPrivateGlobal CallProc() ? __mvScope( "mPrivateLocal" ) //HB_MV_UNKNOWN RETURN PROCEDURE CallProc() PRIVATE mPrivateLocal ? __mvScope( "mPublic" ) //HB_MV_PUBLIC ? __mvScope( "mPrivateGlobal" ) //HB_MV_PRIVATE_GLOBAL ? __mvScope( "mPrivateLocal" ) //HB_MV_PRIVATE_LOCAL ? __mvScope( "mFindMe" ) //HB_MV_NOT_FOUND IF( __mvScope( "mPublic" ) > HB_MV_ERROR ) ? "Variable exists" ELSE ? "Variable not created yet" ENDIF RETURN
Status

Ready

Compliance

This function is a Harbour Extension

Files

Library is vm

See Also