Rollo62

Yes, the whole regulation is a maximal stupid and over-complicated implementation, different in every EU country. Thousands of EU officials had a very hard time over many years, to make it as incompatible as possible to the real world, better fitting to their own parallel world. I assume that in practice still many EU companies will print it out on paper and re-scan it to PDF and staple the paper sheet into the folder

Germany has B2B only too.

Perhaps this German project is interesting for you, which is based on the same basics EN 16931 and could be used maybe with small changes. https://github.com/LandrixSoftware/XRechnung-for-Delphi

Does it come with soucecode, or not? Because that would be a no-go for me, if its not.

https://docwiki.embarcadero.com/Libraries/Sydney/de/System.Messaging.TMessageManager.SendMessage https://docwiki.embarcadero.com/Libraries/Sydney/de/System.Messaging.TMessageManager.SubscribeToMessage https://docwiki.embarcadero.com/CodeExamples/Sydney/en/System.Messaging_(Delphi)

Nice component. Unfortunately it doesn't say anything on the homepage, if it comes with sourcecode, its system requirements or something about its origin. Can you maybe clarify this here, also if you plan to extend this component for iOS, Macos, Windows, .... one day ?

You could also switch to a MacMini or MacStudio, to save money in general. I will move away from MacBook in the future ( when Apple decides to make updates impossible ), to such lower-cost items (already tested on MacMini M2 16GB as remote build maching, but I would recommend more GB for using VMs). Concerning that the MacBook keyboard is unsuitable for heavy use, so I do need a high quality external keyboard and larger display anyway. Only if you want to produce small scripts while drinking coffee in a sunny place, then the cost of Apple mobility is perhaps worth the price tag IMHO. I mainly use it stationary right now, which make little sense.

Perhaps you fix your links,# or, Spam, spam, spam, ...

Just downloading the May patch from my.embarcadero and checking ... It seems to be started by this script patch.R123.hotfix.may_install.bat which contains: PatchTool.exe -f R123.hotfix.may.zip -b 23.0 -t 29.0.55362.2017 -a The whole patch is in this zip R123.hotfix.may.zip which contains a folder: x86_64-w64-mingw32 Where and since when is mingw32 used, is this for C++? I've never noticed that before ( but also I'm not yet on Rx12.3 ).

Perhaps a little rework into a record will remove the whole question of the absolute directive completely. So that you get the point of the additional benefits I see from such structure, to have much more related informations included and easy extendable. This way you can use the right types for specific fields, not all as strings. unit PeriodicTable; interface uses System.SysUtils, System.Math; { TElementRecord encapsulates properties of a chemical element } type TElementRecord = record AtomicNumber : Integer; // Ordnungszahl Symbol : string; // Elementsymbol Name : string; // Elementname AtomicMass : Double; // Atommasse in u HasStableIsotopes : Boolean; // True, wenn stabile Isotope existieren Group : Integer; // Gruppennummer (0=unknown) Period : Integer; // Periode (0=unknown) Electronegativity : Double; // (0=unknown) IonizationEnergy : Double; // erste Ionisierungsenergie in eV (0=unknown) AtomicRadius : Double; // Kovalenter Radius in pm (0=unknown) ElectronConfig : string; // Elektronenkonfiguration (' '=unknown) Density : Double; // Dichte in g/cm³ (0=unknown) MeltingPoint : Double; // Schmelzpunkt in K (0=unknown) BoilingPoint : Double; // Siedepunkt in K (0=unknown) OxidationStates : string; // (''=unknown) Abundance : Double; // Natürliche Häufigkeit in ‰ (0=unknown) end; { Enumeration of all 118 elements } TElement = ( elH, elHe, elLi, elBe, elB, elC, elN, elO, elF, elNe, elNa, elMg, elAl, elSi, elP, elS, elCl, elAr, elK, elCa, elSc, elTi, elV, elCr, elMn, elFe, elCo, elNi, elCu, elZn, elGa, elGe, elAs, elSe, elBr, elKr, elRb, elSr, elY, elZr, elNb, elMo, elTc, elRu, elRh, elPd, elAg, elCd, elIn, elSn, elSb, elTe, elI, elXe, elCs, elBa, elLa, elCe, elPr, elNd, elPm, elSm, elEu, elGd, elTb, elDy, elHo, elEr, elTm, elYb, elLu, elHf, elTa, elW, elRe, elOs, elIr, elPt, elAu, elHg, elTl, elPb, elBi, elPo, elAt, elRn, elFr, elRa, elAc, elTh, elPa, elU, elNp, elPu, elAm, elCm, elBk, elCf, elEs, elFm, elMd, elNo, elLr, elRf, elDb, elSg, elBh, elHs, elMt, elDs, elRg, elCn, elNh, elFl, elMc, elLv, elTs, elOg ); { Helper with utilities } TElementHelper = record helper for TElement function ToRecord: TElementRecord; function Symbol: string; function Name: string; // Including HasStableIsotopes bracket convention function MassString: string; function MassValue: Double; class function Count: Integer; static; class function FromSymbol(const ASym: string): TElement; static; class function FromMass(const AMass, ATolerance: Double = 1e-6): TArray<TElement>; static; end; const Elements: array[TElement] of TElementRecord = ( (AtomicNumber:1; Symbol:'H'; Name:'Hydrogen'; AtomicMass:1.00794; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:2; Symbol:'He'; Name:'Helium'; AtomicMass:4.002602; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:3; Symbol:'Li'; Name:'Lithium'; AtomicMass:6.941; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:4; Symbol:'Be'; Name:'Beryllium'; AtomicMass:9.012182; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:5; Symbol:'B'; Name:'Boron'; AtomicMass:10.811; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:6; Symbol:'C'; Name:'Carbon'; AtomicMass:12.0107; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:7; Symbol:'N'; Name:'Nitrogen'; AtomicMass:14.0067; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:8; Symbol:'O'; Name:'Oxygen'; AtomicMass:15.9994; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:9; Symbol:'F'; Name:'Fluorine'; AtomicMass:18.9984032; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:10; Symbol:'Ne'; Name:'Neon'; AtomicMass:20.1797; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:11; Symbol:'Na'; Name:'Sodium'; AtomicMass:22.98976928; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:12; Symbol:'Mg'; Name:'Magnesium'; AtomicMass:24.305; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:13; Symbol:'Al'; Name:'Aluminium'; AtomicMass:26.9815386; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:14; Symbol:'Si'; Name:'Silicon'; AtomicMass:28.0855; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:15; Symbol:'P'; Name:'Phosphorus'; AtomicMass:30.973762; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:16; Symbol:'S'; Name:'Sulfur'; AtomicMass:32.065; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:17; Symbol:'Cl'; Name:'Chlorine'; AtomicMass:35.453; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:18; Symbol:'Ar'; Name:'Argon'; AtomicMass:39.948; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:19; Symbol:'K'; Name:'Potassium'; AtomicMass:39.0983; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:20; Symbol:'Ca'; Name:'Calcium'; AtomicMass:40.078; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:21; Symbol:'Sc'; Name:'Scandium'; AtomicMass:44.955912; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:22; Symbol:'Ti'; Name:'Titanium'; AtomicMass:47.867; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:23; Symbol:'V'; Name:'Vanadium'; AtomicMass:50.9415; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:24; Symbol:'Cr'; Name:'Chromium'; AtomicMass:51.9961; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:25; Symbol:'Mn'; Name:'Manganese'; AtomicMass:54.938045; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:26; Symbol:'Fe'; Name:'Iron'; AtomicMass:55.845; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:27; Symbol:'Co'; Name:'Cobalt'; AtomicMass:58.933195; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:28; Symbol:'Ni'; Name:'Nickel'; AtomicMass:58.6934; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:29; Symbol:'Cu'; Name:'Copper'; AtomicMass:63.546; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:30; Symbol:'Zn'; Name:'Zinc'; AtomicMass:65.38; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:31; Symbol:'Ga'; Name:'Gallium'; AtomicMass:69.723; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:32; Symbol:'Ge'; Name:'Germanium'; AtomicMass:72.63; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:33; Symbol:'As'; Name:'Arsenic'; AtomicMass:74.9216; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:34; Symbol:'Se'; Name:'Selenium'; AtomicMass:78.96; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:35; Symbol:'Br'; Name:'Bromine'; AtomicMass:79.904; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:36; Symbol:'Kr'; Name:'Krypton'; AtomicMass:83.798; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:37; Symbol:'Rb'; Name:'Rubidium'; AtomicMass:85.4678; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:38; Symbol:'Sr'; Name:'Strontium'; AtomicMass:87.62; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:39; Symbol:'Y'; Name:'Yttrium'; AtomicMass:88.90585; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:40; Symbol:'Zr'; Name:'Zirconium'; AtomicMass:91.224; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:41; Symbol:'Nb'; Name:'Niobium'; AtomicMass:92.90628; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:42; Symbol:'Mo'; Name:'Molybdenum'; AtomicMass:95.96; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:43; Symbol:'Tc'; Name:'Technetium'; AtomicMass:98; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:44; Symbol:'Ru'; Name:'Ruthenium'; AtomicMass:101.07; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:45; Symbol:'Rh'; Name:'Rhodium'; AtomicMass:102.9055; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:46; Symbol:'Pd'; Name:'Palladium'; AtomicMass:106.42; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:47; Symbol:'Ag'; Name:'Silver'; AtomicMass:107.8682; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:48; Symbol:'Cd'; Name:'Cadmium'; AtomicMass:112.411; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:49; Symbol:'In'; Name:'Indium'; AtomicMass:114.818; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:50; Symbol:'Sn'; Name:'Tin'; AtomicMass:118.71; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:51; Symbol:'Sb'; Name:'Antimony'; AtomicMass:121.76; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:52; Symbol:'Te'; Name:'Tellurium'; AtomicMass:127.6; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:53; Symbol:'I'; Name:'Iodine'; AtomicMass:126.90447; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:54; Symbol:'Xe'; Name:'Xenon'; AtomicMass:131.293; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:55; Symbol:'Cs'; Name:'Caesium'; AtomicMass:132.9054; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:56; Symbol:'Ba'; Name:'Barium'; AtomicMass:132.9054; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:57; Symbol:'La'; Name:'Lanthanum'; AtomicMass:138.90547; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:58; Symbol:'Ce'; Name:'Cerium'; AtomicMass:140.116; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:59; Symbol:'Pr'; Name:'Praseodymium'; AtomicMass:140.90765; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:60; Symbol:'Nd'; Name:'Neodymium'; AtomicMass:144.242; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:61; Symbol:'Pm'; Name:'Promethium'; AtomicMass:145; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:62; Symbol:'Sm'; Name:'Samarium'; AtomicMass:150.36; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:63; Symbol:'Eu'; Name:'Europium'; AtomicMass:151.964; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:64; Symbol:'Gd'; Name:'Gadolinium'; AtomicMass:157.25; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:65; Symbol:'Tb'; Name:'Terbium'; AtomicMass:158.92535; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:66; Symbol:'Dy'; Name:'Dysprosium'; AtomicMass:162.5; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:67; Symbol:'Ho'; Name:'Holmium'; AtomicMass:164.93032; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:68; Symbol:'Er'; Name:'Erbium'; AtomicMass:167.259; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:69; Symbol:'Tm'; Name:'Thulium'; AtomicMass:168.93421; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:70; Symbol:'Yb'; Name:'Ytterbium'; AtomicMass:173.054; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:71; Symbol:'Lu'; Name:'Lutetium'; AtomicMass:174.9668; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:72; Symbol:'Hf'; Name:'Hafnium'; AtomicMass:178.49; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:73; Symbol:'Ta'; Name:'Tantalum'; AtomicMass:180.94788; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:74; Symbol:'W'; Name:'Tungsten'; AtomicMass:183.84; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:75; Symbol:'Re'; Name:'Rhenium'; AtomicMass:186.207; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:76; Symbol:'Os'; Name:'Osmium'; AtomicMass:190.23; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:77; Symbol:'Ir'; Name:'Iridium'; AtomicMass:192.217; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:78; Symbol:'Pt'; Name:'Platinum'; AtomicMass:195.084; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:79; Symbol:'Au'; Name:'Gold'; AtomicMass:196.966569; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:80; Symbol:'Hg'; Name:'Mercury'; AtomicMass:200.59; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:81; Symbol:'Tl'; Name:'Thallium'; AtomicMass:204.3833; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:82; Symbol:'Pb'; Name:'Lead'; AtomicMass:207.2; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:83; Symbol:'Bi'; Name:'Bismuth'; AtomicMass:208.9804; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:84; Symbol:'Po'; Name:'Polonium'; AtomicMass:209; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:85; Symbol:'At'; Name:'Astatine'; AtomicMass:210; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:86; Symbol:'Rn'; Name:'Radon'; AtomicMass:222; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:87; Symbol:'Fr'; Name:'Francium'; AtomicMass:223; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:88; Symbol:'Ra'; Name:'Radium'; AtomicMass:226; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:89; Symbol:'Ac'; Name:'Actinium'; AtomicMass:227; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:90; Symbol:'Th'; Name:'Thorium'; AtomicMass:232.03806; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:91; Symbol:'Pa'; Name:'Protactinium'; AtomicMass:231.0588; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:92; Symbol:'U'; Name:'Uranium'; AtomicMass:238.02891; HasStableIsotopes:true; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:93; Symbol:'Np'; Name:'Neptunium'; AtomicMass:237; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:94; Symbol:'Pu'; Name:'Plutonium'; AtomicMass:244; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:95; Symbol:'Am'; Name:'Americium'; AtomicMass:243; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:96; Symbol:'Cm'; Name:'Curium'; AtomicMass:247; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:97; Symbol:'Bk'; Name:'Berkelium'; AtomicMass:247; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:98; Symbol:'Cf'; Name:'Californium'; AtomicMass:251; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:99; Symbol:'Es'; Name:'Einsteinium'; AtomicMass:252; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:100; Symbol:'Fm'; Name:'Fermium'; AtomicMass:257; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:101; Symbol:'Md'; Name:'Mendelevium'; AtomicMass:258; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:102; Symbol:'No'; Name:'Nobelium'; AtomicMass:259; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:103; Symbol:'Lr'; Name:'Lawrencium'; AtomicMass:262; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:104; Symbol:'Rf'; Name:'Rutherfordium'; AtomicMass:267; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:105; Symbol:'Db'; Name:'Dubnium'; AtomicMass:268; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:106; Symbol:'Sg'; Name:'Seaborgium'; AtomicMass:271; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:107; Symbol:'Bh'; Name:'Bohrium'; AtomicMass:272; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:108; Symbol:'Hs'; Name:'Hassium'; AtomicMass:270; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:109; Symbol:'Mt'; Name:'Meitnerium'; AtomicMass:276; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:110; Symbol:'Ds'; Name:'Darmstadtium'; AtomicMass:281; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:111; Symbol:'Rg'; Name:'Roentgenium'; AtomicMass:280; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:112; Symbol:'Cn'; Name:'Copernicium'; AtomicMass:285; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:113; Symbol:'Nh'; Name:'Nihonium'; AtomicMass:286; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:114; Symbol:'Fl'; Name:'Flerovium'; AtomicMass:289; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:115; Symbol:'Mc'; Name:'Moscovium'; AtomicMass:290; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:116; Symbol:'Lv'; Name:'Livermorium'; AtomicMass:293; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:117; Symbol:'Ts'; Name:'Tennessine'; AtomicMass:294; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), (AtomicNumber:118; Symbol:'Og'; Name:'Oganesson'; AtomicMass:294; HasStableIsotopes:false; Group:0;Period:0;Electronegativity:0;IonizationEnergy:0;AtomicRadius:0;ElectronConfig:'';Density:0;MeltingPoint:0;BoilingPoint:0;OxidationStates:'';Abundance:0), ); implementation { TElementHelper impl } function TElementHelper.ToRecord: TElementRecord; begin Result := Elements[Self]; end; function TElementHelper.Symbol: string; begin Result := Elements[Self].Symbol; end; function TElementHelper.Name: string; begin Result := Elements[Self].Name; end; // Including HasStableIsotopes bracket convention function TElementHelper.MassString: string; begin if not Elements[Self].HasStableIsotopes then Result := Format('(%s)', [ FloatToStr(Elements[Self].AtomicMass) ]); else Result := FloatToStr(Elements[Self].AtomicMass); end; function TElementHelper.MassValue: Double; begin Result := Elements[Self].AtomicMass; end; class function TElementHelper.Count: Integer; begin Result := Length(Elements); end; class function TElementHelper.FromSymbol(const ASym: string): TElement; var e: TElement; begin for e := Low(TElement) to High(TElement) do if CompareText(Elements[e].Symbol, ASym) = 0 then Exit(e); raise Exception.CreateFmt('Symbol %s not found', [ASym]); end; class function TElementHelper.FromMass(const AMass, ATolerance: Double): TArray<TElement>; var e: TElement; L: TList<TElement>; begin L := TList<TElement>.Create; try for e := Low(TElement) to High(TElement) do if Abs(Elements[e].AtomicMass - AMass) <= ATolerance then L.Add(e); Result := L.ToArray; finally L.Free; end; end; end. Edit: I forgot to add a little how-to-use example program PeriodicTableDemo; {$APPTYPE CONSOLE} uses System.SysUtils, PeriodicTable; var e : TElement; rec : TElementRecord; matches : TArray<TElement>; i : Integer; begin try // 1) Total count of elements Writeln('Total elements: ', TElementHelper.Count); // 2) Lookup for symbol „Fe“ e := TElementHelper.FromSymbol('Fe'); rec := e.ToRecord; Writeln(Format('Element %d: %s – %s, Mass = %s u', [rec.AtomicNumber, rec.Symbol, rec.Name, e.MassString])); // 3) Search for elements with mass ≈ 1.00794 matches := TElementHelper.FromMass(1.00794, 1e-4); if Length(matches) = 0 then Writeln('No matching elements found.') else begin Writeln('Matches for mass ≈ 1.00794:'); for i := 0 to High(matches) do begin e := matches[i]; rec := e.ToRecord; Writeln(Format(' %s (%s), AtomicNumber = %d', [rec.Symbol, rec.Name, rec.AtomicNumber])); end; end; // 4) Iteration over all elements Writeln('Erste 5 Elemente im Periodensystem:'); for i := 0 to Min(4, TElementHelper.Count-1) do begin e := TElement(i); rec := e.ToRecord; Writeln(Format('%2d: %s – %s, Mass = %s u', [rec.AtomicNumber, rec.Symbol, rec.Name, e.MassString])); end; except on E: Exception do Writeln('Error: ', E.ClassName, ': ', E.Message); end; end.

Nice. To handle it more effectively, I would encapsulate this const array in an Enum with a record helper. That allows to add a lot of convenience functions around this table and offers a nice and effective Enum handle.

Try https://docwiki.embarcadero.com/Libraries/Athens/en/FMX.Styles.TStyleManager.SetStyleFromFile ON: TStyleManager.SetStyleFromFile(styleToUse); OFF: TStyleManager.SetStyleFromFile(nil);

Interesting question. Feasibility with Hooks: - Key Hooks (WH_KEYBOARD_LL): These are irrelevant for detecting paste operations, as pasting is typically triggered via mouse or context menu, not keyboard shortcuts. - Global Mouse Hooks: These can detect right-clicks but cannot reliably identify the "Paste" command or the target directory. - Shell Hooks (HSHELL_*): Using SetWindowsHookEx with WH_SHELL or registering for Shell notifications (SHChangeNotifyRegister) might provide some context about Explorer actions, but they do not directly expose paste events or destinations. Alternative Approaches: - Windows Shell Extensions: Create a Shell Extension (e.g., a context menu handler) to intercept paste commands in Explorer. This requires injecting code into Explorer’s process, which is complex and may have security implications. Maybe that could work for you, although it interferes too much with Windows systems for my taste.

Thats a fair move. Videos are not so easy to be changed https://youtu.be/77bQ6Xs0kBE?t=2598 So I hope that at least some core BLE improvements were still visible.

This depends a bit on what you really need to test in your app. If you want to test all kinds of dynamic hardware stuff a phone can do, then I would always recommend a real device. Only that can behave truly by accleration/motion/orientation sensors, touchscreen, phone calls, etc., the simulator can only roughly simulate that. If your app is mainly a "form" app with controls, not using a lot of specific hardware of the phone, then the simulator could be good enough for you. As far as I know, the debugging doesn't work under iOS simulator too, but still under Macos. So it is always a good idea to test under Windows/Macos first, and only then check the "view impression" and handling by iOS simulator or device.