command message

基本解釋

If the user chooses a command, that command message will be sent to the window whose handle was passed.
如果用戶選擇命令，該命令消息將發(fā)送到句柄被傳遞的窗口。
The EN_KILLFOCUS notification message is sent when an edit control loses the keyboard focus. The parent window of the edit control receives this notification message through a WM_COMMAND message.
當(dāng)編輯框丟失鍵盤(pán)焦點(diǎn)時(shí)（也就是沒(méi)有光標(biāo)在編輯框內(nèi)閃爍時(shí)），父窗口會(huì)收到這一消息。
The EN_SETFOCUS notification message is sent when an edit control receives the keyboard focus. The parent window of the edit control receives this notification message through a WM_COMMAND message.
當(dāng)編輯框獲得鍵盤(pán)焦點(diǎn)時(shí)（即編輯框由無(wú)光標(biāo)變成有光標(biāo)在閃爍時(shí)），父窗口收到這一消息。

So generally, if you don't get an error message in a command line environment like this, that's good.
一般來(lái)說(shuō)，如果你在命令行界面,沒(méi)有收到錯(cuò)誤信息，那就是好消息。
哈佛公開(kāi)課 - 計(jì)算機(jī)科學(xué)課程節(jié)選

When an incoming call or message arrives, it can be received via voice command without even touching the phone.
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As the target is reading the message, malicious software they had inadvertently installed would report back to a command-and-control server, before collecting information from the phone.
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But by talking prematurely about tax cuts, Mr Duncan Smith is only giving ammunition to Tony Blair and confusing what should be his party's most important message: that the Conservatives' newfound decentralist approach is superior to the philosophically flawed command-and-control methods of the government.
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