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There are several function declarations in masm32.inc: Byt2bin_ex proto: byte,: dwordwrd2bin_ex proto: Word,: dworddw2bin_ex proto: DWORD,: dworddw2hex_ex proto: DWORD,: dwordbin2byte_ex proto: DWORD Byt2bin_ex: Count from byte to

Difference between dupestring and stringofchar   Stringofchar is a function that repeats "character" into "string; Dupestring is a function that repeats "string" into "New String; Stringofchar comes from the system unit and can be used

Uses typinfo; {this unit is required to obtain class information} // Obtain the rtti attribute and event functions of the objectFunction getpropertyandeventlist (OBJ: tobject; plist, elist: tstringlist): Boolean;VaRClasstypeinfo: ptypeinfo; {class

Delphi is compatible with the Data Types of COM. Otherwise, it is not true. Here is a simple example: // DelphiProcedure tyn. save2 (data: olevariant; out errcount: integer );BeginDspunit. applyupdates (data, 0, errcount );End; // ComProcedure

The runtime design method is as follows: Preparations for design:Clientdataset1, performance1, and dbgrid1 are associated, which is used for the master table;Clientdataset2, performance2, and dbgrid2 are associated, which will be a

The official example file (main table: orders. xml; slave table: items. XML) is used for the test ). // Add the following to the form: // clientdataset1, performance1, dbgrid1, clientdataset2, performance2, and dbgrid2; then: Procedure

Required, precision, maxvalue, minvalue: Begin {required: required field} with tintegerfield. create (Self) Do begin fieldname: = 'id'; required: = true; Dataset: = clientdataset1; end; {precision: floating point Precision} with tfloatfield.

Blocking connectionsWhen the connection you are using is blocking, your socket must initiate read or write operations through the connection, instead of passively waiting for notifications from the socket connection.Use blocking socket when the read

Size, maximum, and minimum values of the ordered type Procedure Tform1 . Button1click (Sender: tobject ); VaR B: byte; W: word; I: integer; C: Cardinal; Begin Showmessage (inttostr (sizeof (B ))); // Byte size: 1 Showmessage (inttostr (high (B )))

// ================================================ ==========================================================// ADO connection pool cxg 2008-09-26 16:47:40// ================================================ ==========================================

Procedure enumcomports (ports: tstrings );VaRKeyhandle: hkey;Errcode, index: integer;Valuename, data: string;Valuelen, datalen, valuetype: DWORD;Tmpports: tstringlist;BeginErrcode: = regopenkeyex (HKEY_LOCAL_MACHINE,'Hardware/devicemap/serialcomm ',0

View new table ASCII Value Control characters Note 0 Nut 1 Soh Title start 2 STX Start of Text 3 Etx Text ended 4 EOT

Problem Source: http://www.cnblogs.com/del/archive/2008/08/15/1268301.html#1806783 Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs; Type tform1 = Class (tform) Procedure formcreate

Problem Source: http://www.cnblogs.com/del/archive/2009/03/13/1410935.html#1803351 Twebbrowser calls IE, which is only supported after IE7. Preparations:1. Add webbrowser1 and button12. Activate the oncreate event of the form and the onclick

Unit unit1; interfaceuses windows, messages, extensions, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; Procedure formcreate (Sender: tobject); Procedure button1click (Sender: tobject);

General registers Eax Accumulator register Ax (ah, Al) It is often used for multiplication, division, and function return values. EBX Base register Bx (BH, BL) Usually refers to the Memory Data

In this example: Code File: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls, olectrls, shdocvw; Type tform1 = Class (tform) webbrowser1: twebbrowser; button1:

Problem Source: http://www.cnblogs.com/del/archive/2008/09/11/1288760.html#1807074 This topic will involve: Lo, hi, hibyte, loword, hiword, makeword, makelong, int64rec For example, there is an integer of the Cardinal type: 1144

Test diagram: Test code: unit Unit1;interfaceuses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, CheckLst, Grids, DBGrids, DB, DBClient;type TForm1 = class(TForm) ClientDataSet1:

I remember that when I first learned multithreading, I encountered a structure: // Delphi syntax description pcontext = ^ tcontext; _ context = record contextflags: DWORD; dr0: DWORD; DR1: DWORD; DR2: DWORD; dr3: DWORD; dr6: DWORD; dr7: DWORD;