BPL English full name Borland Package library is a special DLL file that is used for code reuse and for reducing executables. When compiling BPL, you only need to add the appropriate PAS file for the feature, and if you have a form, you need to add the DFM file. Since it is a DLL file, that is the file that is required at run time. BPL equivalent to DLLs in C + +
Release date:Last Updated:Hazard level:Vulnerability Type: Permission permission and Access ControlThreat Type: Local
Vulnerability description:
Sybase Unwired Platform has the Local Security Bypass Vulnerability. Attackers can exploit this vulnerability to bypass certain security restrictions and obtain unauthorized access.
Vulnerability announcement:
Currently, the vendor has released an upgrade patch to fix this security issue. Obtain the patch
In the process of developing a lightweight container Based on Dynamic proxy, it is necessary to dynamically load external custom interfaces, classes, and component functions. You cannot determine whether to use DLL or BPL as the implementation method of custom components. Some technical details were found during repeated tests, especially when the string type was used as a parameter or return value.
Anyone who has developed DLL using Delphi knows that
Some time ago to study the development of the BPL way, just recently there is a small project, so try a bit, the project has been completed. Have some experience and experience, write down with you to share, please put forward insufficient, in addition, in the study of BPL friends, there are problems can be discussed together, in order to go faster. A summary of a project (Exe+
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That is correct. a BPL is a DLL. (but not all DLLs are bpls .)
> But I still found some different, such as that I can create> Object from the host EXE and that pass to a BPL and modify it safely,> If I do same to a DLL, I can not modify any referenced property of the object.
When you use packages, There is only ever one copy of any unit inMemory. One copy of forms, one copy of sysutils, one copy
1. Introduction of various files in Delphi and their relationships.
OXC: ActiveX control. It will be installed in a component package dpk. in imports, three files are created: Pas, DCU, and DCR.
DLL: the dynamic link library file. Its exports can be written in either the project file or the unit file. There is no difference.
Dpk: component package file, which is composed of multiple components (PAS.
BPL: the package file is actually a DLL file, but so
Previously, for the differences between BPL and DLL, it has always been a comprehensive solution, most of which (I have read), even if it is better than the typical Delphi solution, it's also vague! Thanks to the help in finding a better description !!!
That is correct. a BPL is a DLL. (but not all DLLs are bpls .)
> But I still found some different, such as that I can create
> Object from the host
For the BPL package, I personally understand is: is a package, and Dll,exe similar, put the code in the package to save it.First, talk about how to create a BPL package1. Open the Delphi IDE (Delphi7 for example)-->file-->close all (off all)-->file-->new-->other--> in the New Item tab (new)-->package-->ok;2, click OK, Delphi helped us to create a number of packages needed for the basic things, such as,At th
Once heard that "BPL is a special kind of dll", but did not think that this sentence has so much significance. Recently, I was surprised to see someone write the export statement in the unit belonging to a dpk. But all the help of Delphi, and export related is the library. Today read the "Delphi Source code Analysis", just know the meaning of this sentence. So there is the following corollary:
For DLL engineering, exports can either be written in eng
"Can ' t load package C:\Programme\Afalinasoft\Add-in Express 2\D5UNITS\ADXWIZARDD5.BPL.Component tworddocument can ' t be registered by package DCLOFFICE2K50.BPL because it have already been registered by package Dclaxserver50."I Think you have installed "MS OfficeXPSample Automation Server Wrapper Components "and if your follow this linkhttp://www.add-in-express.com/add-in-delphi/ Requirements.php you'll see that MS Office -Sample Automation Server
proceduretform1.formcreate (sender:tobject);varArtticontext:trtticontext; Arttipackage:trttipackage;beginArtticontext:=trtticontext.create; forArttipackageinchArtticontext.getpackages () Do begin ifSametext (Extractfilename (Arttipackage.name),'TEST. BPL') Then beginArttiinstancetype:= Arttipackage.findtype ('Unit2.tform2') asTrttiinstancetype; ifArttiinstancetype Nil Then begin beginFRM:= ARttiInstanceType.MetaclassType.Create asTf
problem Phenomenon: tip can ' t load PACKAGE:DCLITE70.BPLThe cause of the problem: It is all Window2003 Data Execution Prevention (DEF).Workaround:Win2003server SP1 + delphi7, when starting the Delphi will be prompted can ' t load PACKAGE:DCLITE70.BPL, after entering the options when the exception occurs.Workaround:Right-click My Computer. Click Properties.In System Properties, click Advanced.In performance, click Settings.In Performance options, clic
There can be many forms and many functions in the package, but all the exports that can be called externally are required.
ExportsDoshowform;
Function doshowform;BeginFmwindow: = tform. Create (application );Fmwindow. show;End;
Note: If a certain PAS has manyProgramYou can package it into a BPL file so that it will not be used in another package.
In an external executable program, the project option sets the runtime package: VCL; RTL; dbrtl; a
Win2003server SP2 + Delphi7, the system prompts can't load package: dclite70.bpl when you start delphi. An exception occurs when you open options.Solution:
Right-click my computer ". Click properties ".Click Advanced in system properties ".Click set in performance ".In performance options, click data protection ".Click Add ". Select the delphi7installation directory, and then select delphi32.exe under the bindirectory.Restart Delphi.
It is caused by
Tip: Suggest beginners to see three things, see the specific content below. Then go to the Forum, the official technical Support website and other resources.
SUP Mobile development Platform Chinese Video Lectures sup Introductory lecture (Wang
Write your own DPK project to change the test of our conjecture. We first set up a project group that contains three projects:
Program Projectexe;UsesForms,WindowsUnitformmain in ' Unitformmain.pas ' {formmain};{$R *.res}BeginApplication.initialize;
In the DELPHI7 installation directory, list all the controls corresponding to the. bpl file in the BIN folder
The following section describes the controls in the bpl list:
Dclact70.bpl (Borland Actionbar Components)Including controls: TStandardColorMap, TTwilightColorMap, TXPColorMap, TActionToolBar, TActionManager, TActionMainMenuBar, TCustomizeDlg
Dclado70.blp
Controls used in the original version such as D5, D6, and so on, such as Quickrep,fastnet, are still reserved in D7. Only Delphi did not install them in the component panel by default. These control packages are all stored under the bin of the Delphi directory, with a file extension of. BPL (total of nearly 60).The way to install these packages is simple, just click on the menu "component---->install Packages ..." and use "ADD" to select the desired p
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