如题。这个缺少我很困惑，是否并没有测试过哦。

Base64的加解密，得到的结果和大多数的工具对不上：

希望sm等国密算法支持linux及arm和龙芯cpu

只要引用了 CnRandom 单元，什么操作都不用做，启动程序，然后直接退出就会触发异常，100%出现

随便新建一个 VCL 或者 Console 程序，目标平台选择 Windows 64-bit，然后uses CnRandom，然后运行程序，然后关闭程序，异常就触发了

Hi there,

Currently, TCnAAFadeText, TCnAAMarqueeText, TCnAAText support Transparent. Is it possible that we have Transparent property for TCnAAScrollText?

1、cnrsa接口不是太方便签名（还有中文问题，base64），稍微有些不那么亲民^_^
2、签名后内内容在网上《在线RSA加密解密》类验签网站上无法验签，会提示异常，公钥请保留-------BEGIN PRIVATE KEY--------------及---------END PRIVATE KEY----------

1.CnNative.pas asm 汇编报错，发现没加结尾分号，补上好了
2.CnLockFree.pas CnAtomicCompareExchange 函数体无法编译通过，我找到另外个函数替换编译过了
//Result := Pointer(InterlockedCompareExchange(LongInt(Target), LongInt(NewValue), LongInt(Comperand)));
Result := InterlockedCompareExchangePointer(Target, NewValue, Comperand);
3.CnZUC.pas ZUCEEA3函数体，CnZUC.pas(354,7) Error: Internal error 200306031 不知道如何修改

编译器是最新的 FPC 3.3.1，编译时报的错误如图

估计是编译器的bug，但是可以通过调整部分代码避免该问题

我发现只要将
procedure Encry(InData, ASubKey: array of Byte; var OutData: array of Byte);
修改为
procedure Encry(const InData, ASubKey: array of Byte; var OutData: array of Byte);

这个问题就不会出现了

建议将类似的参数定义都加上 const 定义，毕竟 const 定义的话，该参数只会传指针，不会做内存拷贝，效率也会高一些

错误提示：在cnRSA单元里，ECN_OK，ECN_CUSTOM_ERROR_BASE 等均未定义。_CnSetLastError等函数也没有定义。请问该如何修改？谢谢

Delphi中编译不会有问题，不过fpc编译就会报实现与定义不一致

java的key: byte[] keyBytes={17,34,79,88,-120,16,64,56,40,37,121,81,-53,-35,85,102}
加密模式：ECB
填充模式：PKCS7
请教怎么使用cnvcl的SM4模块加密呢
使用如下代码加密的结果与java不一致：
--CNVCL加密代码
const
TmpKeytmp: array[0..15] of Byte =
(17, 34, 79, 88, 255 - 120, 16, 64, 56, 40,
37, 121, 81, 255 - 53, 255 - 35, 85, 102);
procedure TFormCrypt.btnSm4Click(Sender: TObject)
function ArraytoTbytes(bs: array of byte): Tbytes;
begin
setlength(Result, Length(bs));
Move(bs[0], Result[0], Length(bs));
end;
var
Output: AnsiString;
Len: Integer;
TmpSm4Iv: array[0..15] of Byte;
IvStr: AnsiString;
s: ansistring;
m, n: string;
KeyBytes, ResBytes, DataBytes: TBytes;
begin
Len := Length(AnsiString(MMSm4.Text));
if Len < 16 then
Len := 16
else
Len := (((Len - 1) div 16) + 1) * 16;
SetLength(Output, Len);
ZeroMemory(@(Output[1]), Len);
KeyBytes := ArraytoTbytes(TmpKeytmp);//TEncoding.Default.GetBytes(MMKey.Text);
DataBytes := TEncoding.Default.GetBytes(MMSm4.Text);
BytesAddPKCS7Padding(DataBytes, SM4_BLOCKSIZE);
ResBytes := SM4EncryptEcbBytes(KeyBytes, DataBytes);
MMCode.Text := BytesToHex(ResBytes);
end;

CnCommon.pas
function CnUtf8ToAnsi(const Text: AnsiString): AnsiString;
Need to be changed to
function CnUtf8ToAnsi(const Text: UTF8String): AnsiString;

In Delphi 10.3
CnCustBuild.dpr can not display the wizard name and the comments

When ASLR is on in project (Delphi Alexandria 11.3) access violation occurs on rendering image on line
...
c := PSrcDot.rgbtBlue - dx;
...

More on ASLR:
https://en.wikipedia.org/wiki/Address_space_layout_randomization

Some further reading:
https://en.delphipraxis.net/topic/7968-how-does-the-address-space-randomization-aslr-actually-work/

It seams that some code is not properly sized (Integer -> Int64)? Hope that author will update and solve this small issue.

Hi, I found memory leaks in CnTwain.pas.

In methods NativeTransfer, MemoryTransfer and FileTransfer, hbm_acq is not freed after use and causes fast growing memory leak.

I made changed in this places:
NativeTransfer:

...
      TWRC_XFERDONE:
        begin
          hbm_acq := hBitMap;
          twRC2 := lpDSM_Entry(@FappID, @FdsID, DG_CONTROL, DAT_PENDINGXFERS, MSG_ENDXFER, @twPendingXfer);
          if twRC2 <> TWRC_SUCCESS then
            DoTwMessage('DG_CONTROL/DAT_PENDINGXFERS/MSG_ENDXFER', False);
          if twPendingXfer.Count = 0 then
            if (hbm_acq <> 0) and (GlobalLock(hbm_acq) <> nil) then
            begin
              Terminate(True);
              GlobalUnlock(hbm_acq);
            end;
          if hbm_acq > VALID_HANDLE then begin
            DoXferDone(hbm_acq);
            GlobalFree(hbm_acq);
          end else
            DoXferDone(0);
...

MemoryTransfer:

...
                TWRC_XFERDONE:
                  begin
                    GlobalUnlock(hbm_acq);
                    FlipBitMap(FHandle, hbm_acq, info.PixelType);
                    twRC2 := lpDSM_Entry(@FappID, @FdsID, DG_CONTROL, DAT_PENDINGXFERS, MSG_ENDXFER, @twPendingXfer);
                    if twRC2 <> TWRC_SUCCESS then
                      DoTwMessage('DG_CONTROL / DAT_PENDINGXFERS / MSG_ENDXFER', False);
                    if twPendingXfer.Count = 0 then
                      Terminate(True);
                    DoXferDone(hbm_acq);
                    GlobalFree(hbm_acq);
                  end;
...

FileTransfer:

...
              hbm_acq := GlobalAlloc(GHND, header.bfSize);
              if hbm_acq <> 0 then
              begin
                ptr := GlobalLock(hbm_acq);
               //for count:=(header.bfSize-sizeof(BITMAPFILEHEADER)) downto count; count-=num, ptr+=num)
                count := header.bfSize - sizeof(BITMAPFILEHEADER);
                while count > 0 do
                begin
                  if count < num then
                    num := count;
                  _lread(hF, ptr, num);
                  Dec(count, num);
                  Inc(ptr, num);
                end;
                GlobalUnlock(hbm_acq);
              end;
              GlobalFree(hbm_acq);
              _lclose(hF);
...

I'm having random AV when using the TCnAAFadeText component.
Here is the stack trace:

exception class : EOutOfResources
exception message : The parameter is incorrect.

main thread ($dc8c):
005ac0b7 +077 MService.exe Vcl.Graphics GDIError
005ac0f3 +007 MService.exe Vcl.Graphics GDICheck
005b161f +0a7 MService.exe Vcl.Graphics CopyBitmap
005b20cf +063 MService.exe Vcl.Graphics TBitmap.CopyImage
005b428b +04b MService.exe Vcl.Graphics TBitmap.SetSize
005b3acf +00b MService.exe Vcl.Graphics TBitmap.SetHeight
00d51d8c +0bc MService.exe CnAAFont 1356 +10 TCnAAMask.DrawMaskEx
00d523ab +033 MService.exe CnAAFont 1462 +1 TCnAAMask.DrawMask
00d54ef6 +116 MService.exe CnAAFont 2521 +31 TCnAAFontEx.TextOutput
00d5a18a +29e MService.exe CnAACtrls 2296 +40 TCnAAFadeText.DrawFadeBmp
00d5a5b0 +05c MService.exe CnAACtrls 2390 +7 TCnAAFadeText.PaintCanvas
00d58373 +06f MService.exe CnAAFont 3994 +14 TCnAAGraphicControl.Paint
00d5a79b +02b MService.exe CnAACtrls 2436 +4 TCnAAFadeText.SetFadeProgress
00d5a547 +0db MService.exe CnAACtrls 2378 +9 TCnAAFadeText.OnFadeTimer
0066057b +00f MService.exe Vcl.ExtCtrls TTimer.Timer
0066045b +02b MService.exe Vcl.ExtCtrls TTimer.WndProc
005490d0 +014 MService.exe System.Classes StdWndProc

cnFloat could conversion from 12.5 to C.8. Can it be converted to IEEE754's 41 48 00 00.
I think this function is used a lot.
thank you！

应该将 Sha256Dig1[K] := Sha256Dig1[K] xor T1[K]; 修改为 Sha256Dig1[K] := Sha256Dig1[K] xor T256[K];
大佬看一下呢、

Do you plan to add support for the Win64 platform?

TCnFileSystemWatcher seems to be giving memory leaks using Tokyo 10.2.1 when closing the application.

procedure foo();
begin
  while True do
  begin
    var List := Faa(Licence,
      function(Item: TData): TResult
      begin
        Result := crAdd;
      end);
  end;
end;

after

procedure foo();
begin
  while True do
  begin
    var List := Faa(Licence,
  function(Item: TData): TResult
  begin
    Result := crAdd;
  end);
  end;
end;

when you remove var formatting is ok

项目里的介绍全改成中文描述，中文优先。。。
明明大家都是**人，**人开发的控件包，还要打上英文描述，这是组织上缺乏安全感还是没自信？
不要说我看不懂英文，这跟个人毛关系都没有。
不要说这是行业规范，毛规范，**的环境下规范范文也是中文。
别给人一看就觉得是外国佬的写的，这是**人写的，应该有这份自信，不要以为挂着一份英文说明书就觉得这东西好。

I tried to install it for 10.2 but received an error saying that CnPack_D101B is required. I fixed it by changing CnPack_D101B to CnPack_D102T after it opened dclCnPack_D102T.bpl page.

Windows Defender altert for:

cnvcl\Examples\Button\Project1.exe

目前是ANSI的，虽然没什么影响，不过在一些无法切换编码方式的编辑器里看到的中文就都是乱码了，比如在 Github Desktop 里查看修改记录就会看到很多乱码

CnHashTable.pas . 列表..

function TCnBucket.CompareStrings(const S1, S2: string): Integer;

因为XE宽字符变更. LStr1 , LStr2 依赖的是长度. 这里转换不正确.
LStr1 := TCnNativeInt((S1));
LStr2 := TCnNativeInt((S2));
改为
LStr1 := TCnNativeInt(AnsiString(S1));
LStr2 := TCnNativeInt(AnsiString(S2));

不知道是否正确................

Do I understand it correctly? 64-bits is not supported??

以前也一直碰到这个问题。导入无法编译控件。
[dcc32 Fatal Error] CnPack_D110A.dpk(30): E2225 Never-build package 'vcl' must be recompiled
还是非常感谢开源项目，国人之光。

Please could you add Package for C++ Builder Tokyo 10.2

very very very thanks

Rado

CnVcl needs msxml.dcu that it is not present in C++ Builder 6 Professional but only in the Enterprise version.

Hello,

Please note that the save action works only from the menu item but doesn't from the F2 shortcut.

How to reconfigure the F2 shortcut under a Classic IDE?

Best regards.