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QObject銇偣銉儍銉堛倰瑷畾銇椼仸 QMetaObject ::銈掍娇鐢ㄣ仹銇嶃伨銇欍傘儭銈姐儍銉夈亴QObject銇偣銉儍銉夈仹纰哄疅銇懠銇冲嚭銇曘倢銈嬨倛銇嗐伀銇欍倠銇伅銆併儑銉曘偐銉儓銇俱仧銇偔銉ャ兗鎺ョ稓銈掍娇鐢ㄣ仐銇nvokeMethod 銇椼伨銇欍 QObject銇偡銈般儕銉倰鐩存帴鍛笺伋鍑恒仚銇撱仺銈傘仹銇嶃伨銇欍
C++er銇孮t銈掍娇銇嗐伖銇10銇悊鐢盦t銇究鍒┿仾鎵銈掔垂浠.. QOBject銇伅SIGNAL SLOT銇ㄣ亜銇嗐儭銉炽儛銉奸枹鏁般亴銇傘倞銆 connect闁㈡暟銈掍娇銇嗕簨銇с佷簩銇ゃ倰鎺ョ稓銇с亶銇俱仚銆.. C++11銇嬨倝銇鏍笺仹銉炪儷銉併偣銉儍銉夈亴銈点儩銉笺儓銇曘倢銈嬨倛銇嗐伀銇倞銇俱仐銇熴亴銆 Qt.
鑳芥浉銇 銉炪儷銉併偣銉儍銉夈倰Qt銇у啀鐝俱仚銈嬫柟娉曘伅銇勩亸銇ゃ亱銇傘倠銇屻 銇濄伄涓仹銆丵Thread銇稒鎵裤倰鍒╃敤銇欍倠銈傘伄銈掔垂浠嬨仚銈嬨 銈炽兗銉夛細鐗广伀. 銉炪儷銉併偣銉儍銉塓t銈€儣銉偙銉笺偡銉с兂(1) 路 C++ Qt.. 闈㈠掋仹銈傘偡銈般儕銉紡銈广儹銉冦儓銈掔敤銇勩倠銇ㄥ畨鍏ㄣ伀瀹熻銇с亶銈嬨


Signal & slot in QT


Qt銈枫偘銉娿儷銈广儹銉冦儓銈广儸銉冦儔


void MyThread::run(){ 銈广儸銉冦儔銇屽銇俱倠銇ㄣ亶銇紝銇撱倢銇屽懠銇般倢銈 QTimer timer; 銈裤偆銉炪兗銈掍綔鎴愩仚銈嬶紟 connect(&timer, SIGNAL(timeout()), this, SLOT(timerHit()), Qt::DirectConnection ); 銈裤偆銉炪兗銇偡銈般儕銉(timeout)銈掞紝鑷垎鑷韩銇偣銉儍銉堥枹鏁(timerHit())銇.
QObject銇偣銉儍銉堛倰瑷畾銇椼仸 QMetaObject ::銈掍娇鐢ㄣ仹銇嶃伨銇欍傘儭銈姐儍銉夈亴QObject銇偣銉儍銉夈仹纰哄疅銇懠銇冲嚭銇曘倢銈嬨倛銇嗐伀銇欍倠銇伅銆併儑銉曘偐銉儓銇俱仧銇偔銉ャ兗鎺ョ稓銈掍娇鐢ㄣ仐銇nvokeMethod 銇椼伨銇欍 QObject銇偡銈般儕銉倰鐩存帴鍛笺伋鍑恒仚銇撱仺銈傘仹銇嶃伨銇欍
Qt銇仢銈屻亴浣跨敤銇曘倢銈嬪牬鎵銇仱銇勩仸鐭ャ仯銇︺亜銇︺併仢銈屻倰閫佸彈淇°仚銈嬨仺銇嶃伀銇濄倢銈掓繁銇忋偝銉斻兗銇欍倠銇撱仺銈掗伩銇戙伨銇欍亱锛. 銈广儹銉冦儓銇偑銉栥偢銈с偗銉堛仺銇暟銇倠銈广儸銉冦儔銇瓨鍦ㄣ仚銈婹Object銇с偡銈般儕銉倰鐧鸿銇欍倠銇ㄣ併仢銇偡銈般儕銉伅QMetaCallEvent銇ㄣ仐銇.




qt銈枫偘銉娿儷銈广儹銉冦儓銈广儸銉冦儔
Qt銇仢銈屻亴浣跨敤銇曘倢銈嬪牬鎵銇仱銇勩仸鐭ャ仯銇︺亜銇︺併仢銈屻倰閫佸彈淇°仚銈嬨仺銇嶃伀銇濄倢銈掓繁銇忋偝銉斻兗銇欍倠銇撱仺銈掗伩銇戙伨銇欍亱锛. 銈广儹銉冦儓銇偑銉栥偢銈с偗銉堛仺銇暟銇倠銈广儸銉冦儔銇瓨鍦ㄣ仚銈婹Object銇с偡銈般儕銉倰鐧鸿銇欍倠銇ㄣ併仢銇偡銈般儕銉伅QMetaCallEvent銇ㄣ仐銇.
Qt銇偡銈般儕銉仺銈广儹銉冦儓銇ㄣ亜銇嗕粫绲勩伩銇紝銈儢銈搞偋銈儓闁撱伄銈裤偆銉椼偦銉笺儣銇偝銉笺儷銉愩儍銈仹锛屽瀷銇畨鍏ㄦс倰纰轰繚銇楋紝鍗冲. connect()銇伄5鐣洰銇紩鏁皌ype銇э紝銈炽儘銈偡銉с兂銈裤偆銉椼倰鎸囧畾銇楋紝銈广儸銉冦儔闁撱伄鎺ョ稓銇с伅Qt::QueuedConnection銈掍娇銇.

qt銈枫偘銉娿儷銈广儹銉冦儓銈广儸銉冦儔

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QT connect signal to slot


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void MyThread::run(){ 銈广儸銉冦儔銇屽銇俱倠銇ㄣ亶銇紝銇撱倢銇屽懠銇般倢銈 QTimer timer; 銈裤偆銉炪兗銈掍綔鎴愩仚銈嬶紟 connect(&timer, SIGNAL(timeout()), this, SLOT(timerHit()), Qt::DirectConnection ); 銈裤偆銉炪兗銇偡銈般儕銉(timeout)銈掞紝鑷垎鑷韩銇偣銉儍銉堥枹鏁(timerHit())銇.


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Total 13 comments.