当你遇到“undefined reference to xcb_shm_attach'”这样的编译错误时,通常意味着你的编译器在链接阶段未能找到xcb_shm_attach`函数的定义。这个函数是XCB(X Protocol C Binding)库的一部分,用于处理X Window系统的共享内存扩展。下面是一些解决这个问题的步骤: 确定xcb_shm_attach函数所属的库: xcb_shm_attach...
m_shm_info.shmaddr = m_xcb_image->data = (quint8 *)shmat (m_shm_info.shmid,0,0); m_shm_info.shmseg = xcb_generate_id(xcb_connection());xcb_generic_error_t*error = xcb_request_check(xcb_connection(), xcb_shm_attach_checked(xcb_connection(), m_shm_info.shmseg, m_shm_info....
m_shm_info.shmseg = xcb_generate_id(xcb_connection());xcb_generic_error_t*error =xcb_request_check(xcb_connection(), xcb_shm_attach_checked(xcb_connection(), m_shm_info.shmseg, m_shm_info.shmid,false));if(error) { qWarning() <<"QXcbWindowSurface: Unable to attach to shared memory...
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