工作线程在更新程序界面时,很多时候会出现莫名奇妙的错误。我想了很多方法都不行,今天从委托中得到了灵感。那就是触发界面的事件。
主要的流程是:自定义事件消息 如#define WM_SHOWFLASHADV (WM_USER+103)
自定义事件函数
// LRESULT CAdvisoryWidgetDlg::OnShowFlashAdv(WPARAM wParam, LPARAM lParam) { Advertise * adv=(Advertise*)wParam; int nScreenWidth=::GetSystemMetrics(SM_CXSCREEN); int nScreenHeight=::GetSystemMetrics(SM_CYSCREEN); int nLen=WideCharToMultiByte(CP_ACP,0,adv->strContent.GetBuffer(),-1,0,0,0,0); char * tmp=new char[nLen]; WideCharToMultiByte(CP_ACP,0,adv->strContent.GetBuffer(),-1,tmp,nLen,0,0); m_flashWnd->SetSwfUrl(tmp); ::SetWindowPos(m_flashWnd->m_hWnd,HWND_TOP,nScreenWidth-adv->rightinter-adv->width,nScreenHeight-adv->bottominter-adv->height,adv->width,adv->height,SWP_SHOWWINDOW); delete[] tmp; return 1; }
绑定消息和事件函数ON_MESSAGE(WM_SHOWFLASHADV,OnShowFlashAdv)
在工作线程时按照自己的需要向界面线程发送消息pMain->PostMessage(WM_SHOWFLASHADV,(WPARAM)adv,0);
希望能给困惑中的朋友一些启发
