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1. Create a global hash table InitializationG_hash: = thashedstringlist. Create;FinalizationFreeandnil (g_hash );   2. Write all the rows read by the specified section of the INI file to the global hash table (the string definition is

Function unicodeencode (STR: string; codePage: integer): widestring;VaRLen: integer;BeginLen: = length (STR) + 1;Setlength (result, Len );Len: = multibytetowidechar (codePage, 0, pchar (STR),-1, pwidechar (result), Len );Setlength (result, Len-1); //

free free : The Memory Page is neither submitted nor retained. It cannot be accessed by processes, but can be allocated by a memory allocation function. reserved reserved : the memory is retained by the calling process and cannot

Unit unit1; Interface UsesWindows, messages, sysutils, variants, classes, graphics, controls, forms,Dialogs, stdctrls; TypeTform1 = Class (tform)Button1: tbutton;Procedure button1click (Sender: tobject );Private{Private

All Server Load balancer products require certain load balancing policies, which are also called Server Load balancer policies.Algorithm. Currently, there are three most common load balancing algorithms: Round Robin (Round-Robin), The minimum number

1. serialization of Component Objects The serialization of Component Objects inherited from tcomponent is simple, because it supports streaming, and streaming achieves the goal of serializing component objects. Both treader and twriter only

Type tloginuser = record // Login User Structure ID: string; Name: string; Ruleid: string; Rulename: string; PWD: string; End;   Psung objectrecord = ^ Tsung objectrecord; Tsung objectrecord = record // Share Object Structure

Data in items using listview and Treeview in Delphi may be ignored due to memory leakage. If data is used as a pointer, the memory will not be released when the project is deleted, you can add dispose (item. data); statement to release.When using

This method can be used to design the function module tree, user permission tree, category tree, and all hierarchical relationships that need to be represented by the tree... This method generates the entire tree by traversing the dataset once.  

Function connremotesvr (CN: tsqlconnection; const hostname, username, password: string; const port: integer): Boolean;BeginTryCN. close;CN. drivername: = 'datasnap ';CN. loginprompt: = false;CN. connectionname: = 'datasnapconnection ';CN. Params.

An error may occur when the DLL directly returns an object. This is because the program and the DLL use different VCL, which is equivalent to different instances of an interface, therefore, an error occurs when VCL-related objects are returned from

It is important to determine whether the network is connected or how it is connected. If you clearly have no connection, you can tell that you have it, and you are connected, but you are not connected, the following two methods are

// Author: cxg 08:22:30 Unit umain;{. $ Hints off}Interface UsesWindows, messages, sysutils, variants, classes, graphics, controls, forms,Dialogs, menus, rztabs, rzsplit, rzpanel, extctrls, comctrls, rzbutton, ADODB, DB, imglist, stdctrls, rzstatus;

1. Status:If rzchecktree1.selected. stateindex = 2 then// It is selected.Else if rzchecktree1.selected. stateindex = 1 then// It is not selectedElse if rzchecktree1.selected. stateindex = 3 then// The status is not all selectedOrIf

UsesZlib; // Compression functionProcedureZip (VaRFS: tmemorystream );VaRCS: tcompressionstream;MS: tmemorystream;Num: integer;BeginIf Not(Assigned (FS)And(FS. size> 0))ThenExit; Num: = FS. size;MS: = tmemorystream. Create;CS: = tcompressionstream.

The number of addresses provided by the system to the program is 4 GB. Why not 3G or 5G? Because the maximum value of the 32-bit pointer is $ ffffffff, it cannot represent more, the root cause is to return to the addressing capability of the CPU,

Write the release in the formclose () of the subform. Procedure tformlogin. formclose (Sender: tobject; var action: tcloseaction );BeginAction: = cafree;Formlogin: = nil;End;   When you close tabsheet, traverse and find the form in it, and then

Main Program Load script Procedure tform1.formcreate (Sender: tobject ); Begin Fsscript1.clear; Fsscript1.parent: = fsglobalunit; Fsscript1.addcomponent (form1 ); Fsscript1.lines.loadfromfile('1.txt '); Fsscript1.run; End;   1.txt File Uses

Use the import tool for scripter to generate the ap_xxx.pas file. In the following example, tprintdbgrideh is supported. Unit myscript;{$ Define printdbgrideh}{$ Define xpman}Interface Implementation Uses ap_db, ap_dbgrids, ap_controls, ap_forms, ap_

In this example, the host Program (exe) only has the interface design, and all the business rules are placed in the script file. This script file is a plain text file and can be modified at will. Once the host program is run, the script-based