如何使用 NativeCall 正确使用 Perl 6 中的 libXL?
How can I correctly use libXL from Perl 6 using NativeCall?
我尝试将 Perl 6(最新版本)的 libXL 与 NativeCall
一起使用。
我无法使用 utf-8 正确保存创建的 xlsx 文件。
似乎只有 CArray[uint16]
有效,Str 未编码('utf8'),CArray[uint8]
。
最好的结果是保存工作簿,sheet名称和文本;但通常它们以特殊符号结尾。即使设置密钥也“经常”起作用。
我的猜测是需要 utf-8,但 CArray[uint16]
总是给出两个字节,而 utf-8 是一种动态格式。我的猜测也是,我对 libXL.dll 的签名可能是错误的。
我还尝试了适用于 xls 的函数的 A-DLL 版本,但我想要一个 xlsx(XML 格式)。
我尝试更改 NativeCall
的子签名并尝试了不同格式的给定变量。
use v6;
use NativeCall;
constant PathLibXL = "C:/....../libxl-3.8.5.0/bin64/libxl.dll";
sub xlBookSaveW(int32, CArray[uint16]) returns uint8 is native(PathLibXL) {*}; # int xlBookSave(BookHandle handle, const wchar_t* filename)
sub xlBookAddSheetW(int64, CArray[uint16]) returns int64 is native(PathLibXL) {*}; # SheetHandle xlBookAddSheet(BookHandle handle, const wchar_t* name, SheetHandle initSheet)
sub xlBookErrorMessageW(int64) returns Str is encoded('utf8') is native(PathLibXL) {*}; # const char* xlBookErrorMessage(BookHandle handle)
sub xlBookReleaseW(int64) is native(PathLibXL) {*}; # void xlBookRelease(BookHandle handle)
sub xlBookSetKeyW(int64, CArray[uint16], CArray[uint16]) is native(PathLibXL) {*}; # void xlBookSetKey(BookHandle handle, const wchar_t* name, const wchar_t* key)
sub xlCreateBookW() returns int64 is native(PathLibXL) {*}; # Book* xlCreateBook()
sub xlCreateXMLBookW() returns int64 is native(PathLibXL) {*}; # Book* xlCreateBook()
sub xlSheetWriteStrW(int64, int64, int64, CArray[uint16], int64) returns int64 is native(PathLibXL) {*}; # int xlSheetWriteStr(SheetHandle handle, int row, int col, const wchar_t* value, FormatHandle format)
sub test-nativeW(){
my $format = 'utf-8'; # utf8 utf16 utf16le utf16be utf8-c8 iso-8859-1 windows-1251 windows-1252 windows-932 ascii
my $Nr = (11111..99999).rand.Int;
my $sheetName16 = CArray[uint16].new("SheetTest".encode($format).list);
my $text = CArray[uint16].new("Hello, world!".encode($format).list);
my $savePath16 = CArray[uint16].new("C:/Temp/Test.$Nr.perl6.xlsx".encode($format).list);
my $book = xlCreateXMLBookW();
if $book > 0 {
say "savePath16:" ~ $savePath16;
my $name = CArray[uint16].new("DELETED".encode($format).list);
my $key = CArray[uint16].new("DELETED".encode($format).list);
xlBookSetKeyW($book, $name, $key);
say "book:" ~ $book;
say "sheetName16: $sheetName16";
my $sheet = xlBookAddSheetW($book, $sheetName16);
if $sheet > 0 {
say "sheet: $sheet";
xlSheetWriteStrW($sheet, 0, 0, $text, 0);
}else{
say "sheet: $sheet";
my $errMsg = xlBookErrorMessageW($book);
say "error:{ $errMsg.Str }";
}
say "C:/Temp/Test.$Nr.perl6.xlsx".encode($format).Str;
my $R = xlBookSaveW($book, $savePath16);
if $R > 0 {
say "releasing book...";
xlBookReleaseW($book)
}
}else{
say "book:" ~ $book;
my $errMsg = xlBookErrorMessageW($book);
say "error:{ $errMsg.Str }";
}
}
test-nativeW();
- 有时,没有任何内容被保存,代码从 Perl 6 以非 0 代码结束
- 有时,文件名以特殊字符结尾(可能取决于编号)
- A 函数 (ASCII) 起作用
此代码显示如何从 Windows API 调用 *W 函数。这很可能也适用于您的图书馆:
use NativeCall;
constant WCHAR = uint16;
constant INT = int32;
constant UINT = uint32;
constant HANDLE = Pointer[void];
constant LPWCTSTR = CArray[WCHAR];
constant MB_ICONEXCLAMATION = 0x00000030;
sub MessageBoxW( HANDLE, LPWCTSTR, LPWCTSTR, UINT ) is native('user32') returns INT { * };
MessageBoxW( my $handle, to-c-str("๘❤ Raku is awesome ❤๖"), to-c-str("Hellö Wαrld"), MB_ICONEXCLAMATION );
sub to-c-str( Str $str ) returns CArray[WCHAR]
{
my @str := CArray[WCHAR].new;
for ( $str.comb ).kv -> $i, $char { @str[$i] = $char.ord; }
@str[ $str.chars ] = 0;
@str;
}
我尝试将 Perl 6(最新版本)的 libXL 与 NativeCall
一起使用。
我无法使用 utf-8 正确保存创建的 xlsx 文件。
似乎只有 CArray[uint16]
有效,Str 未编码('utf8'),CArray[uint8]
。
最好的结果是保存工作簿,sheet名称和文本;但通常它们以特殊符号结尾。即使设置密钥也“经常”起作用。
我的猜测是需要 utf-8,但 CArray[uint16]
总是给出两个字节,而 utf-8 是一种动态格式。我的猜测也是,我对 libXL.dll 的签名可能是错误的。
我还尝试了适用于 xls 的函数的 A-DLL 版本,但我想要一个 xlsx(XML 格式)。
我尝试更改 NativeCall
的子签名并尝试了不同格式的给定变量。
use v6;
use NativeCall;
constant PathLibXL = "C:/....../libxl-3.8.5.0/bin64/libxl.dll";
sub xlBookSaveW(int32, CArray[uint16]) returns uint8 is native(PathLibXL) {*}; # int xlBookSave(BookHandle handle, const wchar_t* filename)
sub xlBookAddSheetW(int64, CArray[uint16]) returns int64 is native(PathLibXL) {*}; # SheetHandle xlBookAddSheet(BookHandle handle, const wchar_t* name, SheetHandle initSheet)
sub xlBookErrorMessageW(int64) returns Str is encoded('utf8') is native(PathLibXL) {*}; # const char* xlBookErrorMessage(BookHandle handle)
sub xlBookReleaseW(int64) is native(PathLibXL) {*}; # void xlBookRelease(BookHandle handle)
sub xlBookSetKeyW(int64, CArray[uint16], CArray[uint16]) is native(PathLibXL) {*}; # void xlBookSetKey(BookHandle handle, const wchar_t* name, const wchar_t* key)
sub xlCreateBookW() returns int64 is native(PathLibXL) {*}; # Book* xlCreateBook()
sub xlCreateXMLBookW() returns int64 is native(PathLibXL) {*}; # Book* xlCreateBook()
sub xlSheetWriteStrW(int64, int64, int64, CArray[uint16], int64) returns int64 is native(PathLibXL) {*}; # int xlSheetWriteStr(SheetHandle handle, int row, int col, const wchar_t* value, FormatHandle format)
sub test-nativeW(){
my $format = 'utf-8'; # utf8 utf16 utf16le utf16be utf8-c8 iso-8859-1 windows-1251 windows-1252 windows-932 ascii
my $Nr = (11111..99999).rand.Int;
my $sheetName16 = CArray[uint16].new("SheetTest".encode($format).list);
my $text = CArray[uint16].new("Hello, world!".encode($format).list);
my $savePath16 = CArray[uint16].new("C:/Temp/Test.$Nr.perl6.xlsx".encode($format).list);
my $book = xlCreateXMLBookW();
if $book > 0 {
say "savePath16:" ~ $savePath16;
my $name = CArray[uint16].new("DELETED".encode($format).list);
my $key = CArray[uint16].new("DELETED".encode($format).list);
xlBookSetKeyW($book, $name, $key);
say "book:" ~ $book;
say "sheetName16: $sheetName16";
my $sheet = xlBookAddSheetW($book, $sheetName16);
if $sheet > 0 {
say "sheet: $sheet";
xlSheetWriteStrW($sheet, 0, 0, $text, 0);
}else{
say "sheet: $sheet";
my $errMsg = xlBookErrorMessageW($book);
say "error:{ $errMsg.Str }";
}
say "C:/Temp/Test.$Nr.perl6.xlsx".encode($format).Str;
my $R = xlBookSaveW($book, $savePath16);
if $R > 0 {
say "releasing book...";
xlBookReleaseW($book)
}
}else{
say "book:" ~ $book;
my $errMsg = xlBookErrorMessageW($book);
say "error:{ $errMsg.Str }";
}
}
test-nativeW();
- 有时,没有任何内容被保存,代码从 Perl 6 以非 0 代码结束
- 有时,文件名以特殊字符结尾(可能取决于编号)
- A 函数 (ASCII) 起作用
此代码显示如何从 Windows API 调用 *W 函数。这很可能也适用于您的图书馆:
use NativeCall;
constant WCHAR = uint16;
constant INT = int32;
constant UINT = uint32;
constant HANDLE = Pointer[void];
constant LPWCTSTR = CArray[WCHAR];
constant MB_ICONEXCLAMATION = 0x00000030;
sub MessageBoxW( HANDLE, LPWCTSTR, LPWCTSTR, UINT ) is native('user32') returns INT { * };
MessageBoxW( my $handle, to-c-str("๘❤ Raku is awesome ❤๖"), to-c-str("Hellö Wαrld"), MB_ICONEXCLAMATION );
sub to-c-str( Str $str ) returns CArray[WCHAR]
{
my @str := CArray[WCHAR].new;
for ( $str.comb ).kv -> $i, $char { @str[$i] = $char.ord; }
@str[ $str.chars ] = 0;
@str;
}