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Bernard

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Bernard last won the day on January 30

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  1. Bernard

    RAD Studio 11 Alexandria is now available

    Hi all, So I had been looking forward to some juicy update for this version of Delphi. Looking at the roadmap I thought they have this one in the bag for me. 2 things I was looking forward to were.. 1) Delphi Language Extensions for increasingly powerfull coding 2) Math performance improvements to increase your application speed Do these come in the form of later updates...
  2. Bernard

    RAD Studio 11 Alexandria is now available

    Has there been an improvement in maths performance?
  3. Bernard

    RAD Studio 11 Alexandria is now available

    Is there a list of language enhancements?
  4. Bernard

    Touch Screen VCL

    Thank you both for the feedback. This info should help 🙂
  5. Bernard

    Touch Screen VCL

    Hello Everyone, I have been moving to a keyboard mouse free interface on a machine. I have introduced a Touchscreen interface on a machine running Windows 10 Pro. Issue. On the screen there are a few buttons that jog motors. When you press the key it will not register unless you move (wiggle) your finger about on the screen. So the functionality (on touch screen with finger) I am looking for is... Press and hold button. Motor starts moving. Release button. Motor stops. Thank you.
  6. I did not know that. Makes sense. Thanks
  7. I came accross an issue when assigning values to an 'array of word' earlier This works var WordArray : TArray<Word>; begin setlength(WordArray, 10); WordArray := [0, 7323, 0, 7224, 0, 7124, 0, 7024, 0, 7004]; end; This works var WordArray : TArray<Word>; begin setlength(WordArray, 10); WordArray := [0, word(73232), 0, 7224, 0, 7124, 0, 7024, 0, 7004]; end; This does not work var WordArray : TArray<Word>; begin setlength(WordArray, 10); WordArray := [0, 73232, 0 ,7224, 0, 7124, 0, 7024, 0, 7004]; end; [dcc32 Error] TestArray.pas(28): E1012 Constant expression violates subrange bounds Can someone explain why the above code is not accepted. For curious reasons. I am stupid I see why I was outside the max range of Word.
  8. Bernard

    Inch representation format in TEdit like controls

    I have a half baked component that accepts metric or imperial. Half baked because in metric mode it works in mm only In Imperial mode it works in inches only. It does not display fraction format but accepts it so these are all valid input 6'3" 5m23cm 1 1/5M 3 1/2" 3' 1/2" 12ga If anyone wants to help improve the code let me know, and I will stick it on Github.
  9. Bernard

    Delphi 10.4.2 first impressions

    I am worried about missing VCL styles as I use the "Windows 10 Slate Gray" and designed icons to contrast nicely with the colors (not a graphics guy and I spent more time at this than I needed). Can anyone confirm it is in the latest install.
  10. Bernard

    Hex2Binary

    Nice one. 32bit release Pascal lookup (Stefan): 1449 64bit release Pascal lookup (Stefan): 1434
  11. Bernard

    Hex2Binary

    This has turned into a great thread for learning about speed improvements by simple tweaks. Using Sets instead of Case function HexToBinMahdi5(const HexValue: string): string; type TChar4 = array [0 .. 3] of Char; PChar4 = ^TChar4; const Table1: array ['0' .. '9'] of TChar4 = ('0000', '0001', '0010', '0011', '0100', '0101', '0110', '0111', '1000', '1001'); Table2: array ['a' .. 'f'] of TChar4 = ('1010', '1011', '1100', '1101', '1110', '1111'); Table3: array ['A' .. 'F'] of TChar4 = ('1010', '1011', '1100', '1101', '1110', '1111'); var HexDigit: Char; P: PChar4; begin SetLength(Result, Length(HexValue) * 4); P := PChar4(Result); for var i: integer := low(HexValue) to high( HexValue ) do begin if HexValue[i] in [ '0' .. '9'] then P^ := Table1[HexValue[i]] else if HexValue[i] in [ 'a' .. 'f'] then P^ := Table2[HexValue[i]] else if HexValue[i] in [ 'A' .. 'F'] then P^ := Table3[HexValue[i]] else raise EConvertError.CreateFmt('Invalid hex digit ''%s'' found in ''%s''', [HexDigit, HexValue]); Inc(P); end; end; Compiled 32bit Release Pascal lookup (Heff): 4091 Pascal lookup (Mahdi): 4107 Pascal lookup (Mahdi 3 Table): 4264 Pascal lookup (Mahdi 3 Table Set): 3665 Pascal lookup (Mahdi 3 Table Set Local Var loop): 2951
  12. Bernard

    Hex2Binary

    Speed up the HexToBinMahdi function by adding a 3rd table and removing any calculations function HexToBinMahdi(const HexValue: string): string; type TChar4 = array [0 .. 3] of Char; PChar4 = ^TChar4; const Table1: array ['0' .. '9'] of TChar4 = ('0000', '0001', '0010', '0011', '0100', '0101', '0110', '0111', '1000', '1001'); Table2: array ['a' .. 'f'] of TChar4 = ('1010', '1011', '1100', '1101', '1110', '1111'); Table3: array ['A' .. 'F'] of TChar4 = ('1010', '1011', '1100', '1101', '1110', '1111'); var HexDigit: Char; P: PChar4; begin SetLength(Result, Length(HexValue) * 4); P := PChar4(Result); for HexDigit in HexValue do begin case HexDigit of '0' .. '9': P^ := Table1[HexDigit]; 'a' .. 'f': P^ := Table2[HexDigit]; 'A' .. 'F': P^ := Table3[HexDigit]; else raise EConvertError.CreateFmt('Invalid hex digit ''%s'' found in ''%s''', [HexDigit, HexValue]); end; Inc(P); end; end; Pascal lookup (Heff): 5777 Pascal lookup (Mahdi): 5948 Pascal lookup (Mahdi 2): 5414 asm32: 6800 xmm: 6068
  13. Bernard

    Import .NET Assembly list is empty

    Thank you. Is this problem a that only impacts some installations?
  14. Bernard

    Import .NET Assembly list is empty

    I am having this issue in 10.4 update 1. Have you ever managed to find a resolution?
  15. Bernard

    Your RAD Studio 10.4 Sydney issues

    Found issue For anyone having this issue of the Toggle Switch giving issues. I have a funny feeling that it is not just me. Get an older copy from the latest community edition or your Rio install. Open the Bitmap Style Designer and open C:\Users\Public\Documents\Embarcadero\Studio\20.0\Styles\Windows10SlateGray.vsf Compare it to C:\Users\Public\Documents\Embarcadero\Studio\21.0\Styles\Windows10SlateGray.vsf If you look at the toggle switch in the latest update it is not correct. Hope this helps..
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