MLine3 Function | |
Extract a line of text from a string, specifying a required offset argument.
Namespace:
XSharp.Core
Assembly:
XSharp.Core (in XSharp.Core.dll) Version: 2.19
Syntax FUNCTION MLine3(
cString AS STRING,
dwLine AS DWORD,
ptrN REF DWORD
) AS STRING
public static string MLine3(
string cString,
uint dwLine,
ref uint ptrN
)
Request Example
View SourceParameters
- cString
- Type: String
The string that contains the line of text. - dwLine
- Type: DWord
The line number to extract. - ptrN
- Type: DWord
ptrN must be a DWORD variable that is passed by reference.
At the end of the function call, ptrN will contain the offset of the last character of the returned line (cLineString).
Return Value
Type:
String
The specified line.
If the specified line does not exist, the return value is NULL_STRING and
ptrN contains a 0.
Remarks
MLine3() is similar to MLine(), except that all three arguments are required and it stores the offset of the last returned character with respect to the beginning of cString. See MLine() for more information.
Examples
This example displays the content and the size of all lines in a character or memo field:
1LOCAL dwOffset AS DWORD
2LOCAL dwLines AS DWORD
3LOCAL i AS DWORD
4dwLines := MemLines(_FIELD->Mail)
5FOR i := 1 UPTO dwLines
6
7 ? MLine3(_FIELD->Mail, i, @dwOffset)
8 ? dwOffset
9NEXT
See Also