注意,WM_QUIT永远不会到达窗口过程,因为GetMessage得到WM_QUIT后就会返回FALSE,从而结束消息循环,最后进程结束,程序退出。 假设使用者执行HELLOWIN,并且使用者最终单击了Close按钮,或者假设用键盘或鼠标从系统菜单中选择了Close, DefWindowProc处理这一键盘或者鼠标输入,在检测到使用者选择了Close选项之后,它给窗口消息处理...
该函数会清除更新区域,并向 Windows 发送信号,通知它程序已经完成了窗口的绘制,在下次发送变换之前无需再次发送 WM_PAINT 消息。 窗口关闭消息 用户可以随时点击右上角的关闭按钮或者使用键盘上的ALT+F4 组合键关闭一个应用程序,这两种方式都会触发 WM_CLOSE 消息。 WM_CLOSE 消息可以在用户关闭窗口之前给出一个友好...
Windows sends theWM_INITDIALOGmessage to the dialog box during theCreate,CreateIndirect, orDoModalcalls, which occur immediately before the dialog box is displayed. Override this method if you want to perform special processing when the dialog box is initialized. In the overridden version, first ca...
If // Yes, go ahead and reset the values and close the dialog. return; } m_nMyValue = m_nPrevValue; m_pMyString = NULL; CDialog::OnCancel(); } CDialog::OnInitDialogThis method is called in response to the WM_INITDIALOG message....
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IlOnClosemetodo gestisce WM_CLOSE messaggi. Sintassi C++Copia virtualBOOLOnClose(); Parametri Questo metodo non presenta parametri. Valore restituito RestituisceTRUE. Commenti Nella classe base questo metodo nasconde semplicemente la finestra. In genere, una classe derivata eseguirà l'override ...
CMFCTabCtrl::EnableActiveTabCloseButtonShows or hides a Close button ( X) on the active tab.C++ Copy void EnableActiveTabCloseButton(BOOL bEnable=TRUE); ParametersbEnable [in] TRUE to display the Close button on the active tab; FALSE to display the Close button on the upper-right ...
CMFCTabCtrl::EnableActiveTabCloseButtonShows or hides a Close button ( X) on the active tab.C++ Copy void EnableActiveTabCloseButton(BOOL bEnable=TRUE); ParametersbEnable [in] TRUE to display the Close button on the active tab; FALSE to display the Close button on the upper-right ...
CMFCTabCtrl::EnableActiveTabCloseButtonShows or hides a Close button ( X) on the active tab.C++ Copy void EnableActiveTabCloseButton(BOOL bEnable=TRUE); ParametersbEnable [in] TRUE to display the Close button on the active tab; FALSE to display the Close button on the upper-right ...
When you process the WM_CREATE message for the main frame window, call either CMFCToolBar::Create or CMFCToolBar::CreateEx to create the toolbar and specify its style. Call CBasePane::EnableDocking to specify the docking style. To insert a special button, such as a combo box or drop-...