ç¨Delphiå¼å串å£é信软件ä¸è¬æ两ç§æ¹æ³ï¼ä¸æ¯å©ç¨Windowsçéä¿¡APIå½æ°ï¼å¦ä¸ç§æ¯éç¨MicrosoftçMSCommæ§ä»¶ãå©ç¨ APIç¼å串å£éä¿¡ç¨åºè¾ä¸ºå¤æï¼éè¦ææ¡å¤§ééä¿¡ç¥è¯ï¼å
¶ä¼ç¹æ¯å¯å®ç°çåè½æ´å¼ºå¤§ï¼åºç¨é¢æ´å¹¿æ³ï¼æ´éåäºç¼åè¾ä¸ºå¤æçä½å±æ¬¡éä¿¡ç¨åºãèå©ç¨ MSCommæ§ä»¶åç¸å¯¹è¾ç®åï¼è¯¥æ§ä»¶å
·æ丰å¯çä¸ä¸²å£éä¿¡å¯åç¸å
³çå±æ§åäºä»¶ï¼æä¾äºå¯¹ä¸²å£çåç§æä½ã ä¸ãMSCommæ§ä»¶ç主è¦å±æ§åäºä»¶ ï¼1ï¼CommPortï¼è®¾ç½®æè¿å串è¡ç«¯å£å·ï¼ç¼ºç为1ã ï¼2ï¼Settingï¼è®¾ç½®æè¿å串å£éä¿¡åæ°ï¼æ ¼å¼ä¸ºâæ³¢ç¹çï¼å¥å¶æ ¡éªä½ï¼æ°æ®ä½ï¼åæ¢ä½âãä¾å¦ï¼MSComm1.Setting:='9600,n,8,1' ï¼3ï¼PortOpenï¼æå¼æå
³é串è¡ç«¯å£ï¼æ ¼å¼ä¸ºï¼MSComm1.PortOpen:={True|False} ï¼4ï¼InBufferSizeï¼è®¾ç½®æè¿åæ¥æ¶ç¼å²åºç大å°ï¼ç¼ºçå¼ä¸º1024åèã ï¼5ï¼InBufferCountï¼è¿åæ¥æ¶ç¼å²åºå
çå¾
读åçåèæ°ï¼å¯éè¿è®¾ç½®è¯¥å±æ§ä¸º0æ¥æ¸
空æ¥æ¶ç¼å²åºã ï¼6ï¼RThresholdï¼è¯¥å±æ§ä¸ºä¸éå¼ï¼å®ç¡®å®å½æ¥æ¶ç¼å²åºå
çåè个æ°è¾¾å°æè¶
è¿è¯¥å¼å就产ç代ç 为ComEvReceiveçOnCommäºä»¶ã ï¼7ï¼SThresholdï¼è¯¥å±æ§ä¸ºä¸éå¼ï¼å®ç¡®å®å½åéç¼å²åºå
çåè个æ°å°äºè¯¥å¼å就产ç代ç 为ComEvSendçOnCommäºä»¶ã ï¼8ï¼InputLenï¼è®¾ç½®æè¿åæ¥æ¶ç¼å²åºå
ç¨Input读å
¥çåèæ°ï¼è®¾ç½®è¯¥å±æ§ä¸º0表示Input读åæ´ä¸ªç¼å²åºçå
容ã ï¼9ï¼Inputï¼ä»æ¥æ¶ç¼å²åºè¯»åä¸ä¸²å符ã ï¼10ï¼OutBufferSizeï¼è®¾ç½®æè¿ååéç¼å²åºç大å°ï¼ç¼ºçå¼ä¸º512åèã ï¼11ï¼OutBufferCountï¼è¿ååéç¼å²åºå
çå¾
åéçåèæ°ï¼å¯éè¿è®¾ç½®è¯¥å±æ§ä¸º0æ¥æ¸
空ç¼å²åºã ï¼12ï¼OutPutï¼ååéç¼å²åºä¼ éä¸ä¸²å符ã å¦æå¨éä¿¡è¿ç¨ä¸åçé误æäºä»¶ï¼å°±ä¼å¼åOnCommäºä»¶ï¼å¹¶ç±CommEventå±æ§ä»£ç åæ é误类åï¼å¨éä¿¡ç¨åºç设计ä¸å¯æ ¹æ®è¯¥å±æ§å¼æ¥æ§è¡ä¸åçæä½ãCommEventå±æ§å¼åå
¶å«ä¹å¦ä¸ï¼ ï¼1ï¼ComEvSendï¼å¼ä¸º1ï¼åéç¼å²åºçå
容å°äºSThresholdæå®çå¼ã ï¼2ï¼ComEvReceiveï¼å¼ä¸º2ï¼æ¥æ¶ç¼å²åºå
å符æ°è¾¾å°RThresholdæå®çå¼ã ï¼3ï¼ComEvFrameï¼å¼ä¸º1004ï¼ç¡¬ä»¶æ£æµå°å¸§é误ã ï¼4ï¼ComEvRxOverï¼å¼ä¸º1008ï¼æ¥æ¶ç¼å²åºæº¢åºã ï¼5ï¼ComEvTxFullï¼å¼ä¸º1010ï¼åéç¼å²åºæº¢åºã ï¼6ï¼ComEvRxParityï¼å¼ä¸º1009ï¼å¥å¶æ ¡éªé误ã ï¼7ï¼ComEvEOFï¼å¼ä¸º7ï¼æ¥æ¶æ°æ®ä¸åºç°æ件尾ï¼ASCIIç 为26ï¼å符ã äºãç¨åºæ ·ä¾ å¨Delphi3.0ä¸æ æ³ä½¿ç¨MSCommæ§ä»¶ï¼ç¬è
使ç¨çæ¯Delphi5.0ãMSCommæ§ä»¶æ¯VBä¸çOCXæ§ä»¶ï¼é¦å
éè¦å°å
¶æ·»å å° Delphiä¸ï¼éæ©èåâComponentâââImport ActiveX Controlâï¼å¨âImport ActiveXâ页å
éæ©âMicrosoft Comm Controlâï¼ç¹å»âInstallâå®è£
ï¼å®è£
åå¨âActiveXâç»ä»¶æ¿ä¸åºç°MSCommå¾æ ï¼å³å¯è¢«ä½¿ç¨ãæä¸ç¹è¦æ³¨æï¼å¨Object Inspectorä¸MSCommæ§ä»¶çInputåOutputå±æ§æ¯ä¸å¯è§çï¼ä½å®ä»¬ä»ç¶åå¨ï¼è¿ä¸¤ä¸ªå±æ§çç±»åæ¯OleVariantï¼Oleä¸è½åéï¼ã ä¸é¢æ¯ä¸æ¥æ¶ç¨åºçæ ·ä¾ï¼ä¸»è¦é¨åï¼ï¼å¤§å®¶å¯æ ¹æ®å®é
éè¦è¿è¡å®åã å¨Formä¸æ¾ç½®ä¸Memoæ§ä»¶ç¨äºæ¾ç¤ºæ¥æ¶çæ°æ®ï¼Combobox1éæ©éä¿¡åæ°ï¼Settingå±æ§å¼ï¼ï¼Combobox2éæ©ä¸²å£ï¼CommPortå±æ§å¼ï¼ï¼æButton1å¼å§æ¥æ¶æ°æ®ï¼æButton2åæ¢æ¥æ¶ã proc
温馨提示:答案为网友推荐,仅供参考