I am using C++Builder 10.3.2 Community Edition on Windows 10 Home Version 1903.
I tried to use Remy's code below to get the UTC date/time.
When compiling, bcc32c issues an error:
no matching function for call to 'EncodeTime'.
The call to EncodeDate is valid.
I've used exactly the same code in C++Builder 5 on Vista and it works fine.
I've been trying to find a reference to this problem without success. Am I missing something?
TDateTime __fastcall NowUTC(void)
{
SYSTEMTIME SystemTime;
::GetSystemTime(&SystemTime);
return EncodeDate(SystemTime.wYear,SystemTime.wMonth,SystemTime.wDay) + EncodeTime(SystemTime.wHour,SystemTime.wMinute,SystemTime.wSecond);
}
The EncodeTime needs milli-seconds added. Try this line:
return EncodeDate(SystemTime.wYear,SystemTime.wMonth,SystemTime.wDay)+ EncodeTime(SystemTime.wHour,SystemTime.wMinute,SystemTime.wSecond,SystemTime.wMilliseconds);
Related
I recently updated the stock Indy that installs with Delphi 2007 (I think it is 10.5.1.1) with 10.6.2.0, which I downloaded from GitHub.
I'm now getting a compile error:
EAttachmentFileNotFound.IfFalse (FileExists (parActualAttachmentFileID), 'File ' + parActualAttachmentFileID + ' not found.') ;
Error: E2003 Undeclared identifier: 'IfFalse'
The fragment is from my own code but I'm pretty sure that bit came from something I found probably on S/Overflow.
I received a couple of other errors also:
SMTPClient.AuthType := atDefault ;
Error: E2003 Undeclared identifier: 'atDefault'
and
SMTPClient.OnWork := EmailThread.EmailOnWork ;
Error: E2010 Incompatible types: 'Int64' and 'Integer'
but the first is a member that was renamed, and the second a data type that was changed. While these were a simple enough workaround, I'm left wondering
whether there was ever a "breaking changes" document generated.
maybe I accidentally somehow got the wrong source set.
EAttachmentFileNotFound is not a standard Indy exception, so it must be coming from your own code, or another 3rd party library.
Delphi 2007 was released almost 16 years ago. A lot has changed in Indy during that time. In fact, I think the changes you mention were actually made prior to, or maybe around, the release of Delphi 2007 (as they already existed in Indy's code in early 2008).
For instance:
in EIdException, the If(True|False) methods were removed (I don't know when exactly that change happened). In which case, you will have to use your own if and raise expressions now, eg:
if not FileExists(parActualAttachmentFileID) then
raise EAttachmentFileNotFound.Create('File ' + parActualAttachmentFileID + ' not found.');
in TIdComponent, the AWorkCount/Max parameters of the OnWork... events were changed from Integer to Int64 in 2006 (see OnWork Events changed to 64 bit on Indy's blog).
in TIdSMTP, the atDefault value was renamed to satDefault (again, I don't know exactly when this change was made).
So, you need to update your code accordingly.
I'm left wondering whether there was ever a "breaking changes" document generated.
No such document was ever created, no. However, changes that affect user code are typically announced on Indy's blog, under the Changelog category.
We use a Delphi 10 programme that reads in an Access database. I do not deeply understand how it does it, except that I believe it uses units called DAO.pas and DAO_TLB.pas.
I recently upgraded from Office 2007 to Office 2016, and since then the Delphi programme is unable to read from the database; it gives the error:
Project MyProj.exe raised exception class EOleSysError with message 'Class not registered'.
I have tried to search to find how to fix this but am struggling because I don't really understand what's going on under the hood. I tried to install the Access 2016 type library, but that didn't seem to make any difference.
Extremely grateful for any help.
Thanks,
Tom
EDIT: DAO.pas is here. DAO_TLB.pas is where the error is triggered; the function which errors is:
class function CoDBEngine.Create: _DBEngine;
begin
Result := CreateComObject(CLASS_DBEngine) as _DBEngine;
end;
Where CLASS_DBEngine is a constant declared as:
CLASS_DBEngine: TGUID = '{CD7791B9-43FD-42C5-AE42-8DD2811F0419}';
I have also just noticed that, when the error occurs, if I click continue rather than break, a new error appears, saying:
Class not registered, ClassID: {CD7791B9-43FD-42C5-AE42-8DD2811F0419}
i.e. the ClassID is the CLASS_DBEngine constant.
I have question about loading *.fr3 in DelphiXE5,
I designed a report and pointed some text to Memo inside of Fast Report everything was ok until I want to load fast Report file from out site App it works for my PC perfectly but when I install client side it gets Error like this Photo include in this message
And the code I used is:
begin
frxReport1.LoadFromFile(ExtractFilePath(Application.ExeName)+'R1.fr3');
frxReport1.PrepareReport();
frxReport1.ShowReport();
end;
Error message:
'18/89765' is not a valid floatin point value
'238/11039' is not a valid floatin point value
'275/90569' is not a valid floatin point value
'41984/5614698264' is not a valid floatin point value
'41984/5618072454' is not a valid floatin point value
'94/48825' is not a valid floatin point value
I found the problem, the problem was Microsoft windows 8.1
I'm using Microsoft Windows 8.1, Delphi Xe 5 and Fast-report 4.15.6
First I made a report in fast report without any change and then run my app in windows 7 save as Fast-report to file and then use in all version of Microsoft Windows, thanks a lot
The problem has been originated form Regional Settings.
Win 8.1 automatically changes decimal separator as '.' to '/' in Persian language, even in fast reports.
The Microsoft has to figure this problem out.
step 1: open frxutils.pas from fastreport lib
step 2: function frxStrToFloat(s: String): Extended;
step 3: relapse this code: [',', '.']) with [',', '.','/']
I'm trying to install GLScene into RAD Studio 2010, with the aim of using it from a mostly C++ project. I downloaded the latest snapshot (5991, November 2011) and have been trying to compile and install the two main packages: GLScene_DesignTime and GLScene_RunTime. I haven't even tried some of the other libraries (CUDA, etc), I just want to get the base packages running.
I've encountered a number of problems, one of which I can't solve, and I'm seeking the help of anyone on SO who has successfully installed GLScene, or might know how to solve these Delphi compiler errors.
First problem (solved?)
When compiling, a number of files gave the following error:
[DCC Warning] GLSelection.pas(297): W1025 Unsupported language feature: 'abstract class method'
This is caused by a method declaration something like:
TGLBaseSelectTechnique = class
public
class function IsSupported: Boolean; virtual; abstract;
It seems that a virtual abstract class method is not supported in Delphi 2010, and I have solved it by removing 'abstract' and providing a dummy implementation, e.g. just returning false.
The second problem (not solved) - Delphi compiler fatal errors
I am now encountering two more serious errors. When compiling, the compiler fails like so:
[DCC Fatal Error] Exception EAccessViolation: Access violation at address 05AE8ED9 in module 'dcc140.dll'. Read of address 00000003
[DCC Error] Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
It doesn't say what file caused this, but I think it's caused by Spline.pas. Occasionally and not as often, I get this:
[DCC Fatal Error] Spline.pas(1): F2084 Internal Error: AV062D8ED9-R00000003-0
This indicates Spline.pas, and I think the first error is probably related to the file too, because after getting the first one if I then clean the project, cleaning will fail saying it could not delete Spline.hpp. (I have to close and reopen the IDE.) Spline.hpp just contains the following:
// CodeGear C++Builder
// Copyright (c) 1995, 2009 by Embarcadero Technologies, Inc.
// All rights reserved
// (DO NOT EDIT: machine generated header) 'Spline.pas' rev: 21.00
#ifndef SplineHPP
#define SplineHPP
#pragma delphiheader begin
#pragma option push
#pragma option -w- // All warnings off
#pragma option -Vx // Zero-length empty class member functions
#pragma pack(push,8)
#include <System.hpp> // Pascal unit
#include <Sysinit.hpp> // Pascal unit
and there it stops. It looks to me like it failed when trying to generate the HPP file.
I always get one of these two failures. The second is the only one I can tie to a specific file; the first fails halfway through the project, but I can't see where it got up to when it failed. I am compiling from inside the IDE.
I've looked in Spline.pas, and it seems pretty basic code - I can't see anything unusual at all. You can find it here, and apparently the file hasn't been touched for seven years... so I think it should compile :)
If I change the project settings so it does not generate headers, it compiles fine. (Generating just obj files, and any other of the settings that does not include "headers", all work fine.) But this isn't a good workaround for me - after all, I need to use it from C++ Builder, so my normal setting would be "Generate all C++ Builder files". At a bare minimum, I need HPP and OBJ files.
Has anyone here used GLScene in a recent version of C++ Builder? Have you encountered similar problems? Any idea how to solve this one?
I am using:
RAD Studio 2010 (fully patched and up to date; DDevExtensions and IDEFixPack installed.)
The November 2011 snapshot; I tried the March 2011 snapshot too, and got the same problems. Link to snapshots here.
The Delphi 2010 packages modified only by changing the linker output to generate C++ Builder files; and also the BCB 6 packages. Both give the same errors.
Edit: GLScene now has compatibility with RAD Studio XE3 (including C++ Builder.)
Now there is full compatibility of GLScene with Embarcadero RAD Studio
C++Builder XE3 as in design and runtime mode.
You can download it from http://yadi.sk/d/o1QGI2KA10MK1 (95Mb)
-- from Pal Wassail's post on the Embarcadero forum thread.
{quote:title=David M wrote:}{quote}
Hi,
I'm trying to install GLScene into RAD Studio...
David
And here is more simple Test for EMB developers of Delphi XE3 header generator -
1.Create a VCL Form Application
2.Add in Unit1.pas interface section
type
TVector3f = array[0..2] of single;
TVector4f = array[0..3] of single;
function VectorAdd(const v : TVector3f; const f : Single) : TVector3f; overload;
function VectorAdd(const v : TVector4f; const f : Single) : TVector4f; overload;
3.Add in implementation section
function VectorAdd(const v : TVector3f; const f : Single) : TVector3f;
begin
Result[0]:=v[0]+f;
Result[1]:=v[1]+f;
Result[2]:=v[2]+f;
end;
function VectorAdd(const v : TVector4f; const f : Single) : TVector4f;
begin
Result[0]:=v[0]+f;
Result[1]:=v[1]+f;
Result[2]:=v[2]+f;
Result[3]:=v[3]+f;
end;
Set Delphi Compiler option “Generate C++ .objs, headers, namespaces, export”
Build the project
Then Delphi XE3 compiler generates wrong header file Unit1.hpp with lines:
extern PACKAGE TVector3f __fastcall VectorAdd
(float const v, const float f)/ overload */;
extern PACKAGE TVector4f __fastcall VectorAdd
(float const v, const float f)/ overload */;
If now you are trying to use this header file Unit1.hpp in my.cbproj you get fatal error:
“E2238 Multiple declarations in …”
Yes, if you change vector array types to records:
TVector3f = record
case boolean of
true : (Coord: array[0..2] of single);
false : (X,Y,Z: single);
end;
then the problem could be solved, because in this case Delphi compiler generates
extern PACKAGE Vectortypes::TVector3f __fastcall VectorAdd
(const Vectortypes::TVector3f &v, const float f)/* overload */;
extern PACKAGE Vectortypes::TVector4f __fastcall VectorAdd
(const Vectortypes::TVector4f &v, const float f)/* overload */;
and you could build your C++Builder VCL application without "Multiple declaration " error. It was done for old GLScene version in 2007, but now you need to rewrite some part of code in new library, starting from VectorGeometry.pas module.
There are second way to fix such automatic header's errors - improvement of Delphi compiler in Generating C/C++ headers, namespaces and packages option. But it's in hands of EMB developers.
Here's how I do it:
Download and extract this ZIP file (directly into the root folder of GLScene, allowing it to overwrite as necessary)
Load up the appropriate RAD Studio version (2007 to XE2) and open the file *GLScene_Group.groupproj* (where = your RAD Studio version)
Build/Install each Package in group order
I have carefully assembled these fixed packages to ensure they all install and function properly from 2007 to XE2. Some packages (at the bottom of each group) require additional dependencies to function (such as the Python package) so be mindful of these.
I have tested and confirmed that these work on RAD Studio 2007 to XE2 only.
Don't forget to add the \Source folder (and all subfolders) to the Search Paths (either for the IDE itself or an individual Project, as you desire) otherwise the projects using GLScene components will fail to compile complaining of missing units.
Enjoy!
Not for RAD Studio 2009 but for old GLScene installation in BCB6 she was running well. But current version after installation in RAD Studio XE/XE2/XE3 does not work at all. It seems that the main problem is hidden in overload mechanism of procedures in Vectorgeometry.pas, so Delphi compiler (with using an option for Output of all C++ files and packages) creates coincident strings in Vectorgeometry.hpp and others. Thus you have visual components in C++Builder panel, but your application fails with errors during building. It must be repaired in .pas files by GLScene developers.
When you trying to build an application with GLScene under C++Builder XE3 you will get over 50 BCC32 errors in glcrossplatform.hpp, vectorgeometry.hpp and so on. There is a way to repair the library on your own discretion. Make a new copy of GLScene directory. In GLCrossPlatform.pas rename the procedure RGB to GLRGB (it's work!). Then in VectorGeometry.pas and in many others files of source codes change all overload procedures with slightly different parameter names, so you should't encounter coincident procedures in .hpp files after Delphi option output C++ (last option that includes packages). Then rebuild all GLScene packages. At the end of the process I hope it should work for C++Builder XE3.
I have exact he same errors.
#The second problem
Go to "spline.pas" and change
TCubicSplineMatrix = array of array[0..3] of Single;
to
TCubicSplineMatrixEx = array[0..3] of Single;
TCubicSplineMatrix = array of TCubicSplineMatrixEx;
Now "Rad Studio 2009" can compile and install GLScene for C++Builder. I can start a new C++Builder VCL Application and select GLScene components from the toolbox and drop in my VCL form.
I think, this is the solution for your basic problem, but unfortunately I can not compile my VCL project successful. I get over 50 BCC32 errors in glcrossplatform.hpp and vectorgeometry.hpp. If anyone can help here, that would be great.
#Your First problem
I get this warnings too, but I have nothing changed for it. Just ignore it?!
A few month a go i wrote a program, now when i try to compile it i receive this error :
[DCC Fatal Error] PVCM.dpr(7): F1026
File not found: 'dxGDIPlusClasses.dcu'
I don't know which component I've used .
That is a Devexpress component for GDI+. Devexpress units invariably have cx or dx prefixes.
It sounds like a DevExpress component.
I just encountered this problem right now !!!
Go to the unit that generates the error. Look at the top of its source code.
You will find under Uses a unit called: dxGDIPlusClasses. Remove it and you should be fine.
Hint: Next time when you remove a set of components. You have to update the USES block in your previous projects or at least, give'em a double check.