1. 你主动调用Create去创建窗口 2. 收到WM_CREATE消息，表示有个窗口正在被创建 3. MFC自动调用OnCreate，你可以重载这个函数。比如如果你想在窗口上添加按钮，文本框什么的，可以在OnCreate里做。
r.assistToken); //callActivityOnCreate()方法最终调用Activity#onCreate() activity.mCalled = false; if (r.isPersistable()) { mInstrumentation.callActivityOnCreate(activity, r.state, r.persistentState); } else { mInstrumentation.callActivityOnCreate(activity, r.state); } } return activity; } ...
{ HRESULT hr = S_OK; BYTE *pData =NULL; DWORD cbRead =0;// Actual amount of data read.IMFMediaBuffer *pBuffer =NULL;// Create the media buffer.// This function allocates the memory for the buffer.hr = MFCreateMemoryBuffer(cbToRead, &pBuffer);// Get a pointer to the memory ...
All child windows, except those that have theWS_EX_NOPARENTNOTIFYextended window style, send this message to their parent windows. By default, child windows in a dialog box have theWS_EX_NOPARENTNOTIFYstyle, unless theCreateWindowExfunction is called to create the child window without this style...
另外需要注意的是onConfigurationChanged()方法中的:super.onConfigurationChanged(newConfig);一定不能省去,否则将引发:android.app.SuperNotCalledException 异常。如果改变了系统屏幕的设置方向,我们不妨可以这么认为,它算是一个触发事件的开始吧,那么假使有人触发了这个事件,我们是否能够直接进行某些操作呢,如改变界面的...
Sent to a window when a significant action occurs on a descendant window. This message is now extended to include theWM_POINTERDOWNevent. When the child window is being created, the system sendsWM_PARENTNOTIFYjust before theCreateWindoworCreateWindowExfunction that creates the window returns. When ...
If you want more than one object in the notification routing to handle a message, you can useON_NOTIFY_EX(orON_NOTIFY_EX_RANGE) rather thanON_NOTIFY(orON_NOTIFY_RANGE). The only difference between theEXversion and the regular version is that the member function called for theEXversion retur...
$$languagesqlcalledonnullinput;createAGGREGATEWMSYS.wm_concat (text) (sfunc=WMSYS.sf_concat,stype=text); 测试: postgres=# select reltype,wmsys.wm_concat(relname) from pg_class group by reltype order by reltype;reltype | wm_concat
wmmarker(lat,lon) displays a marker overlay at the points specified by lat and lon on the current web map. If there is no current web map, wmmarker creates one. wmmarker centers the map so that all vector overlays on the web map are visible. A marker is also called a map pin. exa...
If you want more than one object in the notification routing to handle a message, you can use ON_NOTIFY_EX (or ON_NOTIFY_EX_RANGE) rather than ON_NOTIFY (or ON_NOTIFY_RANGE). The only difference between theEXversion and the regular version is that the member function called for theEX...