Copies a specified number of bytes from a specified position in a source string to a destination string.
Kernel.bdh
GetMem( in sSource : string, in nPosition : number, inout sDest : string, in nLen : number ): boolean;
true if successful
false otherwise
Parameter | Description |
---|---|
sSource | Contains the string to copy from |
nPosition | Specifies the position to start copying from in sSource, where the first position in a string is 1 (not 0) |
sDest | Contains the destination string |
nLen | Length to copy |
dcltrans transaction TGetMem const SIZE_STRUCT := 32; var myBDLstring : string(SIZE_STRUCT); sString : string(6); bOk : boolean; begin ... // Copy sizeof(sString) = 6 bytes from myBDLString starting // at position 2 into sString and thereby (through mapping) get the // elements myShort and myLong in Struct1 bOk := GetMem(myBDLstring, 2, sString, STRING_COMPLETE); if bOk then write("myShort and myLong successfully retrieved"); writeln; else write("error getting myShort and myLong"); writeln; end; end TGetMem;
myShort and myLong successfully retrieved