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Unit unit1; interfaceuses windows, messages, extensions, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; Procedure button1click (Sender: tobject); end; var form1: tform1; implementation {

In this example: CodeFile: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls; Type tform1 = Class (tform) dxpaintbox1: bytes; button1: tbutton; button2: tbutton;

Drawing must have paper, paint brush, and paint brush. Delphi has canvas, pen, and brush. Canvas is the canvas. For example, the canvas attribute of a form is the canvas of a form;Pen is a paint brush. You can set the pen color and width;You can

In this example: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; button2: tbutton; procedure button1click

Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; button2: tbutton; button3: tbutton; button4: tbutton; button5: tbutton; Procedure

The waiting function waitforsingleobject is jumped to because the following synchronization methods, such as mutex, semaphore, event, and waitabletimer, use this function. However, the waiting function can be more than waitforsingleobject, but it is

In this example: Code File: unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls; type tform1 = Class (tform) accept: accept; button1: tbutton; button2:

In this example: Code File: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls; Type tform1 = Class (tform) dxpaintbox1: tdxpaintbox; procedure formcreate

In this example: Code File: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls, extctrls; Type tform1 = Class (tform) dxpaintbox1: bytes; button1: tbutton;

// The paint brush class tbrush has three important attributes: color, style, bitmap. {style: style. Delphi defines the style enumeration tbrushstyle for the paint brush, including the following style:} watermark // Below smallProgramThe filling

//ProgramCode: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, menus, stdctrls; Type tform1 = Class (tform) Procedure formcreate (Sender: tobject); end; var form1: tform1; implementation {

In this example: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, comctrls, stdctrls, grids, extctrls; Type tform1 = Class (tform) treeview1: metric; memo1: tmemo; Panel1:

// These special effects of tdib are annoying: Many, repeated, and imperfect; no test or test failure Methods: Procedure drawshadow (srcdib: tdib; x, y, width, height, frame: integer; filtermode: tfiltermode); Procedure drawshadows (srcdib: tdib; x,

Function createthread (usage: pointer; dwstacksize: DWORD; lpstartaddress: tfnthreadstartroutine; lpparameter: pointer; dwcreationflags: DWORD; {startup options} var lpthreadid: DWORD): thandle; stdcall; The penultimate parameter

In this example: Code File: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls; Type tform1 = Class (tform) dxpaintbox1: bytes; button1: tbutton; Procedure

First read Program , Code File: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) listbox1: tlistbox; button1: tbutton; procedure formcreate

Function createthread (rules: pointer; {Security Settings} dwstacksize: DWORD; lpstartaddress: tfnthreadstartroutine; lpparameter: pointer; dwcreationflags: DWORD; var lpthreadid: DWORD): thandle; stdcall; The first parameter of createthread,

Function createthread (vertex: pointer; dwstacksize: DWORD; lpstartaddress: tfnthreadstartroutine; lpparameter: pointer; {parameter of the entry function} dwcreationflags: DWORD; var lpthreadid: DWORD): thandle; stdcall; The parameter of

In this example: CodeFile: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls; Type tform1 = Class (tform) dxpaintbox1: bytes; button1: tbutton; button2: tbutton;

In this example: Code file: Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, Dib, stdctrls, extctrls; Type tform1 = Class (tform) dxpaintbox1: bytes; radiogroup1: tradiogroup;