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1、<p>  Visual C++程序設(shè)計(jì)</p><p>  21世紀(jì)將是信息化社會(huì),以信息技術(shù)為主要標(biāo)志的高新技術(shù)產(chǎn)業(yè)在整個(gè)經(jīng)濟(jì)中的比重不斷增長(zhǎng),隨著計(jì)算機(jī)技術(shù)的飛速發(fā)展,社會(huì)對(duì)人才的計(jì)算機(jī)應(yīng)用與開(kāi)發(fā)水平的要求也日益增高,為適應(yīng)形式,其中VC++技術(shù)及其產(chǎn)品是當(dāng)今世界計(jì)算機(jī)發(fā)展的一塊巨大領(lǐng)域。Windows xp/vista 是目前主流圖形化操作系統(tǒng),運(yùn)行各種各樣的window操作系統(tǒng)的個(gè)人計(jì)算機(jī)已在

2、全球的家庭和辦公壞境中廣泛使用,而越來(lái)越多的個(gè)人計(jì)算機(jī)具有internet功能和多媒體功能又推動(dòng)了對(duì)各種各樣功能強(qiáng),速度快的應(yīng)用軟件的進(jìn)一步需求。目前有一種對(duì)microsoft所取得的成功進(jìn)行誹謗的氣氛,然而,microsoft的成功加上它對(duì)標(biāo)準(zhǔn)化的承諾,使得有承諾的windows編程人員利用他們掌握的技術(shù)在全球范圍內(nèi)得到越來(lái)越大的回報(bào),由于西方社會(huì)的承認(rèn)和計(jì)算機(jī)已越來(lái)越深入到每個(gè)人的生活中,因而對(duì)他們的技術(shù)需求與日俱增,從而使得他們的

3、回報(bào)、經(jīng)濟(jì)收入和其他各方面相應(yīng)地取得了滿意的結(jié)果。</p><p>  Visual C++編程語(yǔ)言是由Microsoft公司推出的目前極為廣泛的可視化開(kāi)發(fā)工具,利用Visual C++可以開(kāi)發(fā)基于Widnows平臺(tái)的32位應(yīng)用程序,依靠強(qiáng)大的編譯器以及網(wǎng)絡(luò)與數(shù)據(jù)庫(kù)的開(kāi)發(fā)能力,用Visual C++可以開(kāi)發(fā)出功能強(qiáng)大的應(yīng)用程序。</p><p>  VC++6.0是操作系統(tǒng)中快速應(yīng)用開(kāi)發(fā)環(huán)

4、境的最新版本。它也是當(dāng)前Windows平臺(tái)上第一個(gè)全面支持最新WEB服務(wù)的快速開(kāi)發(fā)工具。無(wú)論是企業(yè)級(jí)用戶,還是個(gè)人開(kāi)發(fā)者,都能夠利用VC++6.0輕松、快捷地開(kāi)發(fā)優(yōu)秀的基于通信的程序,開(kāi)發(fā)高效靈活的文件操作程序,開(kāi)發(fā)靈活高效的數(shù)據(jù)庫(kù)操作程序,等等。VC++6.0是惟一支持所有新出現(xiàn)的工業(yè)標(biāo)準(zhǔn)的RAD壞境,包括XML(擴(kuò)展標(biāo)記語(yǔ)言)/XSL(可擴(kuò)展樣式語(yǔ)言),SOAP(簡(jiǎn)單對(duì)象存取協(xié)議)和WSDL(Web服務(wù)器描述語(yǔ)言)等。</p&

5、gt;<p>  VC++6.0是可視化的快速應(yīng)用程序開(kāi)發(fā)語(yǔ)言,它提供了可視化的集成開(kāi)發(fā)壞境,這一壞境為應(yīng)用程序設(shè)計(jì)人員提供了一系列靈活先進(jìn)的工具,可以廣泛地用于種類(lèi)應(yīng)用程序設(shè)計(jì)。在VC++6.0的集成開(kāi)發(fā)壞境中,用戶可以設(shè)計(jì)程序代碼、運(yùn)行程序、進(jìn)行程序錯(cuò)誤的調(diào)試等,可視化的開(kāi)發(fā)方法降低了應(yīng)用程序開(kāi)發(fā)的難度。VC++6.0的基礎(chǔ)編程語(yǔ)言是具有面向?qū)ο筇匦缘腃++語(yǔ)言。C++具有代碼穩(wěn)定、可讀性好、編譯速度快、效率高等優(yōu)點(diǎn),

6、并將面向?qū)ο蟮母拍畹玫匠浞值陌l(fā)揮,使這種語(yǔ)言有了全新的發(fā)展空間。</p><p>  使用VC++6.0,我們幾乎可以做任何事情,還可以撰寫(xiě)各種類(lèi)型的應(yīng)用程序,動(dòng)態(tài)鏈接庫(kù)(DLL)、CON、或CORBA對(duì)象,CGI/ISAPI程序,Microsoft Back Office應(yīng)用程序。程序的規(guī)模小到簡(jiǎn)單的個(gè)人數(shù)據(jù)庫(kù)應(yīng)用,大到復(fù)雜的企業(yè)的多層次分布式系統(tǒng),都可以使用VC++6.0進(jìn)行開(kāi)發(fā),其友好的集成開(kāi)發(fā)界面,可視化

7、的雙向開(kāi)發(fā)模式,良好的數(shù)據(jù)庫(kù)應(yīng)用支持高校的程序開(kāi)發(fā)和程序運(yùn)行,備受廣大程序開(kāi)發(fā)人員的好評(píng)。尤其是VC++6.0對(duì)數(shù)據(jù)庫(kù)應(yīng)用的強(qiáng)大支持,大大提高了數(shù)據(jù)庫(kù)應(yīng)用軟件開(kāi)發(fā)的效率,縮短了開(kāi)發(fā)周期,深受廣大數(shù)據(jù)庫(kù)應(yīng)用程序設(shè)計(jì)人員的喜愛(ài)。VC++6.0為數(shù)據(jù)庫(kù)應(yīng)用開(kāi)發(fā)人員提供了豐富的數(shù)據(jù)庫(kù)開(kāi)發(fā)組件,使數(shù)據(jù)庫(kù)應(yīng)用開(kāi)發(fā)功能更強(qiáng)大,控制更靈活,編譯后的程序運(yùn)行速度更快。</p><p>  在Visual C++中包含了大量新功能:

8、一些新的控件(例如,你可能在Microsoft Outlook 電子郵件應(yīng)用程序中日期選擇器控件)目前已能應(yīng)用到你自己的應(yīng)用程序中。各種圖像現(xiàn)在已能與組合框中的項(xiàng)相關(guān)聯(lián),而且可以利用擴(kuò)充的組合框控件將圖像顯示在組合選擇框中和下列列表中。在Office 97 和 Internet Explorer 4 中已使用的一般的工具條和尺寸可調(diào)節(jié)的工具條都以集成在其類(lèi)庫(kù)中,以供你用于你自己的應(yīng)用程序中。你可以在你自己的應(yīng)用程序中使用Internet

9、 Explorer,查看Web頁(yè)和HTML的內(nèi)容。</p><p>  面向?qū)ο篌w系結(jié)構(gòu)技術(shù)有助于創(chuàng)建行業(yè)性軟件開(kāi)發(fā)機(jī)構(gòu)。例如交通規(guī)劃盡管具有差別,但各城市所需要的軟件基本上是相同的,這就為軟件開(kāi)發(fā)機(jī)構(gòu)提供了一種制作面向交通規(guī)劃的軟件框架(注意這里講的是軟件框架而不是通用性軟件)的機(jī)會(huì)。這種框架一旦開(kāi)發(fā)成功,就可以多次反復(fù)利用。</p><p>  思維方式?jīng)Q定解決問(wèn)題的方式,傳統(tǒng)軟件開(kāi)發(fā)

10、采用自頂向下的思想知道程序設(shè)計(jì),即將目標(biāo)分為若干子目標(biāo),字母表再進(jìn)一步劃分下去,知道目標(biāo)能被編程實(shí)現(xiàn)為止。面向?qū)ο蠹夹g(shù)是包含數(shù)據(jù)和對(duì)數(shù)據(jù)操作的代碼實(shí)體,或者說(shuō)實(shí)在傳統(tǒng)的數(shù)據(jù)結(jié)構(gòu)中加入一些被稱為成員函數(shù)的過(guò)程,因而賦予對(duì)象以動(dòng)作。而在程序設(shè)計(jì)中,對(duì)象具有與現(xiàn)實(shí)世界的某種對(duì)應(yīng)關(guān)系,我們正式利用這種關(guān)系對(duì)問(wèn)題進(jìn)行分解。</p><p>  BMP是bitmap的縮寫(xiě),即為位圖圖片。位圖圖片是一種稱作“像素”的單位存儲(chǔ)圖

11、像信息的。這些“像素”其實(shí)就是一些整體排列的色彩(或黑白)點(diǎn),如果這些點(diǎn)被慢慢放大,你就會(huì)看到一個(gè)個(gè)的“像素中填充著自己的顏色,這些“像素“整齊地排列起來(lái),就成為了一副BMP圖片,并以.bmp(.rle,.dib等)為擴(kuò)展名。BMP(Bitmap-File)圖形文件是Windows采用的圖形文件格式,在Windows壞境下運(yùn)行的所有圖像處理軟件都支持BMP圖像文件格式。BMP:Windows位圖可以用熱河顏色深度(從黑白到24為顏色)存

12、儲(chǔ)單個(gè)光柵圖像。Windows位圖文件格式與其他Microsoft Windows程序兼容。它不支持文件壓縮,也不適用于WEB頁(yè)。</p><p>  從總體上看,Windows位圖文件格式的缺點(diǎn)超過(guò)了它的優(yōu)點(diǎn)。為了保證圖片圖像的質(zhì)量,請(qǐng)使用PNG文件、JPEG文件或者TIFF文件。BMP文件適用于Windows中的強(qiáng)紙。</p><p>  優(yōu)點(diǎn):BMP支持1位到24位顏色色深度。<

13、;/p><p>  BMP格式與現(xiàn)有Windows程序(尤其是較舊的程序)廣泛兼容。</p><p>  缺點(diǎn):BMP不支持壓縮,這會(huì)造成文件非常大。</p><p>  BMP文件不受WEB瀏覽器支持。</p><p>  計(jì)算機(jī)技術(shù)迅速發(fā)展的時(shí)代,圖像文件作為傳遞信息的重要方法之一有著重要作用。每種圖像格式都有自己的特點(diǎn)與應(yīng)用領(lǐng)域,各種圖像文

14、件通過(guò)格式轉(zhuǎn)換軟件實(shí)現(xiàn)相互的轉(zhuǎn)換,用戶根據(jù)自身的需求選擇合適的格式以達(dá)到最佳的使用效果隨著計(jì)算機(jī)軟件、硬件技術(shù)的如新月異的發(fā)展和普及,人類(lèi)已經(jīng)進(jìn)入一個(gè)高速發(fā)展的信息化時(shí)代,人類(lèi)大概有80%的信息來(lái)自圖像,科學(xué)研究,技術(shù)應(yīng)用中圖像處理技術(shù)越來(lái)越成為不可缺少的手段。圖像處理所涉及的領(lǐng)域有軍事應(yīng)用、醫(yī)學(xué)診斷、工業(yè)監(jiān)控、物體的自動(dòng)分檢識(shí)別系統(tǒng)等等,這些系統(tǒng)無(wú)不需要計(jì)算機(jī)提供實(shí)時(shí)動(dòng)態(tài)、效果逼真的圖像。</p><p>&l

15、t;b>  前   言</b></p><p>  會(huì)議,是人類(lèi)社會(huì)經(jīng)濟(jì)生活中不可或缺的一部分,有關(guān)的研究表明,通信的有效性約55%依賴于面對(duì)面(face-to-face)的視覺(jué)效果,38%依賴于說(shuō)話語(yǔ)音,視聽(tīng)是人們獲取信息的最重要形式,而面對(duì)面的討論(face-to-face)是人類(lèi)表達(dá)思想最豐富的一種方式。自工業(yè)革命后,科技的發(fā)達(dá)使得通信技術(shù)有了突破性的進(jìn)展,電話和電報(bào)的

16、發(fā)明,使遠(yuǎn)地的人們可以立即傳送聲音和文檔。然而,除了言語(yǔ)的溝通外,人類(lèi)更注重的是表情和肢體的表達(dá),僅僅是聲音的傳送已經(jīng)無(wú)法滿足現(xiàn)代人交流的需求,即時(shí)并且互動(dòng)的影像更能真實(shí)自然的傳送信息。(1)視頻會(huì)議系統(tǒng)正是在這種迫切需要的推動(dòng)下產(chǎn)生的新一代通信產(chǎn)品。視頻會(huì)議(VideoConference)系統(tǒng)是一種能把聲音、圖像、文本等多種信息從一個(gè)地方傳送到另一個(gè)地方的通信系統(tǒng)。有效發(fā)送基于視頻的信息,可以在遠(yuǎn)程部門(mén)和部門(mén)間開(kāi)展合作,同時(shí)還可以

17、實(shí)現(xiàn)諸如視頻會(huì)議和視頻點(diǎn)播等視頻應(yīng)用技術(shù)。視頻會(huì)議系統(tǒng)是計(jì)算機(jī)技術(shù)與通信技術(shù)相結(jié)合的產(chǎn)物,它作為多媒體通信技術(shù)的一個(gè)重要組成部分,正隨著波及全球的信息高速公路的興起而迅速發(fā)展起來(lái)。    視頻會(huì)議從出現(xiàn)至今已有三十多年,從最開(kāi)始的減</p><p>  視頻會(huì)議系統(tǒng)主要有三個(gè)部分組成,即通信網(wǎng)絡(luò)、會(huì)議終端和多點(diǎn)控制單元。視頻會(huì)議系統(tǒng)實(shí)質(zhì)上是計(jì)算機(jī)技術(shù)和通信技術(shù)相結(jié)合的產(chǎn)物,所以通信

18、網(wǎng)絡(luò)是視頻會(huì)議系統(tǒng)的基礎(chǔ)組成部分之一,會(huì)議終端是將視頻、音頻、數(shù)據(jù)、信令等等各種數(shù)字信號(hào)分別進(jìn)行處理后組合成的復(fù)合數(shù)字碼流,再將碼流轉(zhuǎn)變?yōu)榕c用戶-網(wǎng)絡(luò)兼容的接口,符合傳輸網(wǎng)絡(luò)所規(guī)定的信道幀結(jié)構(gòu)的信號(hào)格式送上信道進(jìn)行傳輸。多點(diǎn)控制單元是視頻會(huì)議系統(tǒng)用于多點(diǎn)視聽(tīng)信息的傳輸與切換部分,它是根據(jù)一定的準(zhǔn)則處理視聽(tīng)信號(hào),并根據(jù)要求分配各個(gè)要連接的信道,但它并不是視頻會(huì)議所必須的。(1)通信網(wǎng)絡(luò)是一系列的設(shè)備、機(jī)構(gòu)和進(jìn)程,通過(guò)它們,附著在網(wǎng)絡(luò)上的

19、終端用戶設(shè)備能夠進(jìn)行有意義的信息交換。它涉及到網(wǎng)絡(luò)傳輸協(xié)議、網(wǎng)絡(luò)編程接口等內(nèi)容。(4)視頻會(huì)議系統(tǒng)的終端設(shè)備承擔(dān)了多種媒體信息的輸入、輸出和處理,以及用戶和網(wǎng)絡(luò)之間的連接、交互和控制等多項(xiàng)任務(wù)。它屬于用戶數(shù)字通信設(shè)備,在系統(tǒng)中處在用戶的視聽(tīng)、數(shù)據(jù)輸入/輸出設(shè)備和網(wǎng)絡(luò)之間。(1)視頻會(huì)議中有時(shí)需要進(jìn)行多點(diǎn)間的信息傳輸和交換,這時(shí)可以借助于多點(diǎn)控制單元(MCU)來(lái)實(shí)現(xiàn)。多點(diǎn)控制單元實(shí)際上就是一臺(tái)多媒體信息交換機(jī),實(shí)現(xiàn)多點(diǎn)呼叫和</

20、p><p>  Fundamentals of Programming Visual C++</p><p>  The 21st century are the information societies, unceasingly grow take the information technology as the main symbol high-tech industry in the

21、 entire economical proportion, along with the computer technology rapid development, the society also day by day enhance to talented person's computer application and the development level request, are the adaption s

22、ituations, VC++ technology and its the product are a huge domain which now the world computer develops. Windows 2000/xp is the present mainstre</p><p>  Visual the C++ programming language is at present extr

23、emely widespread visible development kit which promotes by Microsoft Corporation, may develop using Visual C++ based on the Widnows platform 32 applications procedure, depends upon the formidable compiler as well as the

24、network and the database development ability, may develop the function formidable application procedure with Visual C++.</p><p>  VC++6.0 is in the operating system the rapid application development environm

25、ent newest edition. It also is in the current Windows platform the first comprehensive support newest Web service fast development kit. Regardless of is the enterprise level user, or individual development, all can be re

26、laxed using VC++6.0, quickly develop outstandingly based on the correspondence procedure, the development highly effective nimble document operation sequence, the development nimble highly effective data</p><p

27、>  VC++6.0 is the visible fast application procedure development language, it has provided the visible integrated development environment, this environment has provided a series of nimble and the advanced tool for the

28、 application programming personnel, may widely use in the type application programming. In the VC++6.0 integrated development environment, the user may design the procedure code, the operating procedure, carries on the p

29、rogram error the debugging and so on, the visible method of exploi</p><p>  In 6.0 has contained the massive new functions in Visual C++: Some new controls (for example, you possibly email application proced

30、ure date selector control in Microsoft in Outlook) at present to be able to apply in you application procedure. Each kind of image could now be connected with the combination frame in item, moreover may use the combinati

31、on frame which expands to control and following tabulates the pictorial display in the combination choice frame. The tool strip 97 and Internet Explo</p><p>  The object-oriented system structure technology

32、is helpful to the foundation prefessional software development organization. For example ,transportation plan although has the difference, but various cities need software basically is same, this provided one kind of man

33、ufacture for the software development organization (to pay attention to here lecture face the transportation plan software frame is software frame but was not versatile software) an opportunity. This kind of frame once d

34、evelops succ</p><p>  The thinking mode decided solves the question way, the traditional software development uses the from the top thought instruction programming, soon the goal divides into certain subtarg

35、ets, the subtarget further divides again, can program until the goal the realization. The object-oriented technology brings the enormous change for the software design domain, it carries on the procedure development usin

36、g the software object, the so-called object is contains the data and the logarithm according to</p><p>  BMP is the bitmap abbreviation, namely for position chart picture. The position chart picture is calle

37、d as "the picture element" with one kind the unit storage picture information. These "the picture element" actually is some neat arrangements colored (or black and white) the spot, if these is slowly

38、enlarged, you can see center adds to one each one "the picture element" is imitating own color, these "the picture element" neatly arranges, has become a BMP picture, and take bmp (rle, dib and so o&l

39、t;/p><p>  Looked from the overall that, the Windows position chart document format shortcoming has surpassed its merit. In order to guarantee the picture picture the quality, please use the PNG document, the J

40、PEG document or the TIFF document. The BMP document is suitable in Windows the wallpaper. Merit: BMP supports 1 to 24 colors depths. The BMP form and the existing Windows procedure (an older procedure) widespread is in p

41、articular compatible. Shortcoming: BMP does not support the compression, this can</p><p>  The computer technology rapid development time, the picture document has the vital role one of as transmission infor

42、mation important methods. Each kind of picture form all has own characteristic and the application domain, each kind of picture document through the format conversion software realization mutual transformation, the user

43、acts according to own demand choice appropriate form to achieve the best use effect. </p><p>  The development and the popularization which along with computer software, the hardware technology changes with

44、each new day, the humanity already entered a high speed development the information time, the humanity probably has 80% information to come from the picture, in the scientific research, the technical application the pict

45、ure processing technology more and more to become the essential method. Picture processing involves the domain has the military application, medicine diagnosis, industr</p><p>  1 IntroductionMeeting of hum

46、an society an integral part of economic life, the study shows that approximately 55% of the effectiveness of communication depends on the face (face-to-face) of the visual effects, 38% rely on talking voice, audio-visual

47、 people The most important form of access to information, and face to face discussions (face-to-face) is the most abundant human expression of ideas way. Since the industrial revolution, the technological advancement mad

48、e a breakthrough progress in co</p><p>  Figure 1.1 A typical schematic of a video conferencing systemFrom the above diagram we can basically tell, the video conferencing system has three main components, n

49、amely, communication networks, conferencing terminals and multipoint control unit. Video conferencing systems and computer technology is essentially the product of combining communication technology, so the communication

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