varvPath:string;beginvPath :='D:\ceshi2';ifTPath.DriveExists(vPath)thenbeginMemo1.Lines.Add('驱动器号存在');ifnotDirectoryExists(vPath)thenMemo1.Lines.Add('文件目录不存在');end;end; System.SysUtils.ExcludeTrailingBackslash 返回不带尾部分隔符的路径名。 beginMemo1.Lines.Add(ExcludeTrailingBacksla...
A character c cannot be converted directly into a standard string in Visual C++. This is required for example at an assignment of a chain of strings to the stringS:S= c + S. Therefore the conversion is made by the constructor "basic_string (size_type n, chartT c, ...)" now, that...
A full description of these functions can be read in theWindows API documentation. As can be seen the calls we need to make are complex and require a lot of pointer manipulation. In the next section we hide some of this complexity in wrapper routines. Delphi wrapper routines Let us now de...
DirectX 11 のサポート Snap-to ヒントとレイアウトガイドラインを搭載した VCL フォームデザイナ VCL および FMX Metropolis(Windows アプリケーション向けモダン UI) *1 Mobile Add-on Pack for Professional を購入 FMX アプリケーションプラットフォーム(FIREMONKEY) New in XE7! 設計段...
NtUtils.SysUtils String manipulation NtUtils.Errors Error code conversion NtUiLib.Errors Error code name lookup NtUiLib.Exceptions SysUtils exception integration DelphiUiLib.Strings String prettification DelphiUiLib.Reflection Base RTTI support DelphiUiLib.Reflection.Numeric RTTI representation of numeric ty...
just as they always have. The vast majority of your code using the VCL should continue to work as normal. We’ve done a lot of work to ensure that the VCL is both Unicode ready and backwards compatible. Normal VCL code that doesn’t do any specific string manipulation will work as ...
that they should actually be functions that return a value, written as they are //they DO NOTHING. You pass the values (e.g. add1, add2 and sum in AddRand) by VALUE not by REFERENCE, so any //manipulation that is happening in the procedure LOST when it returns, so when you try...
Dispose(P);untilFSnakePointList.Count =0;end;end;procedureTSnake.GameOver;varS:string;beginStartSnake :=false; FReadKeyThread.StartRead :=false;//FMyConsole.SetCursorTo(0,16); FMyConsole.WriteText(''); FMyConsole.SetCursorTo(0,16); ...
Unlike the past, when UTF8String was simply an alias of the string type, the new type is now fully recognized: conversions are automatic and all of the existing UTF-8 string manipulation routines have been ported to use the new specific types. Embarcadero Technologies - 15 - Delphi and ...
NtUtils.SysUtils String manipulation NtUtils.Errors Error code conversion NtUiLib.Errors Error code name lookup NtUiLib.Exceptions SysUtils exception integration DelphiUiLib.Strings String prettification DelphiUiLib.Reflection Base RTTI support DelphiUiLib.Reflection.Numeric RTTI representation of numeric ty...