Qt项目中我设计了两个按钮,当点击其中一个按钮时用QProcess对象打开一个应用,点击另外一个按钮时想把打开的这个应用关掉,但是一直都没成功,怎么实现呢?
1条回答
- oyljerry 2016-05-18 05:44关注
找到句柄来关闭进程
#include <windows.h> ... class ProcessKiller : public QObject { qint64 m_pid; public: ProcessKiller(qint64 pid, QObject * parent = 0) : QObject(parent), m_pid(pid) {} ~ProcessKiller() { HANDLE hApp = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_TERMINATE, FALSE, m_pid); if (hApp == NULL) return; TerminateProcess(hApp, NULL); CloseHandle(hApp); } }
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