CharOdd Function |  |
Return the odd-numbered characters in a string.
Namespace: XSharp.Core
Assembly: XSharp.Core (in XSharp.Core.dll) Version: 2.21
SyntaxRequest Example
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Every other character in the string, starting from the first character.
Parameters
- cString
- Type: String
The string whose odd-numbered characters you want to return.
Return Value
Type: StringEvery other character in the string, starting from the first character.
RemarksExamples
The SaveScreenOld() function, whose return value maintains compatibility with the CA-Clipper SaveScreen() function, stores the screen contents in a buffer such that the odd bytes contain the actual screen characters and the even bytes contain the corresponding screen attributes. CharOdd() is useful in extracting the screen contents from such a buffer.
This example saves the screen contents of the first row and redisplays it in many different colors on the next row:
X#
1Function Start() 2 LOCAL i AS SHORTINT 3 LOCAL cBuffer AS STRING 4 LOCAL cCharacters, cAttributes AS STRING 5 LOCAL cSong AS STRING 6 cSong := "Show me your true colors!" 7 ?? cSong 8 cBuffer := SaveScreenOld(0, 0, 0, 79) 9 cCharacters := CharOdd(cBuffer) 10 cAttributes := CharEven(cBuffer) 11 // Change the attributes 12 SEvalA(cAttributes, {|| Chr(i++)}, 1,; 13 SLen(cSong)) 14 // Redisplay with new attributes 15 RestScreenOld(1, 0, 1, 79,; 16 CharMix(cCharacters, cAttributes)) 17 RETURN TRUE
See Also