| Description |
The PWideChar type holds a pointer to a WideChar value.
It can also be used to point to characters within a WideString, as in the example code.
As with other pointers, integer arithmetic, such as Inc and Dec can be performed on a PWideChar variable, also shown in the example.
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| Notes |
PWideChar is principally used when processing null-terminated (C-like) strings.
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| Related commands |
| $ExtendedSyntax |
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Controls some Pascal extension handling |
| Dec |
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Decrement an ordinal variable |
| Inc |
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Increment an ordinal variable |
| PAnsiChar |
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A pointer to an AnsiChar value |
| PChar |
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A pointer to an Char value |
| PWideString |
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Pointer to a WideString value |
| WideChar |
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Variable type holding a single International character |
| WideString |
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A data type that holds a string of WideChars |
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| Example code : Display all characters in a string |
var
myWideString : WideString;
myWideCharPtr : PWideChar;
i : Integer;
begin
// Create a string of WideChar's
myWideString := 'Hello';
// Point to the first character in the string
myWideCharPtr := Addr(myWideString[1]);
// Display the string
ShowMessage(myWideCharPtr);
// Now increment the pointer
Inc(myWideCharPtr,2);
// And see what is shows now
ShowMessage(myWideCharPtr);
// Display all characters in the string
while i <= Length(myWideString) do
begin
ShowMessage(myWideCharPtr^);
Inc(i);
Inc(myWIdeCharPtr);
end;
end;
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| Show full unit code |
Hello
llo
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