`WM_` Message Handlers: A - C

The following map entries on the left correspond to the function prototypes on the right:

Map entry	Function prototype
`ON_WM_ACTIVATE()`	`afx_msg void` `OnActivate(UINT, CWnd*, BOOL);`
`ON_WM_ACTIVATEAPP()`	`afx_msg void` `OnActivateApp(BOOL, DWORD);`
`ON_WM_APPCOMMAND()`	`afx_msg void` `OnAppCommand(CWnd*, UINT, UINT, UINT);`
`ON_WM_ASKCBFORMATNAME()`	`afx_msg void` `OnAskCbFormatName(UINT, LPSTR);`
`ON_WM_CANCELMODE()`	`afx_msg void` `OnCancelMode();`
`ON_WM_CAPTURECHANGED()`	`afx_msg void` `OnCaptureChanged(CWnd*);`
`ON_WM_CHANGECBCHAIN()`	`afx_msg void` `OnChangeCbChain(HWND, HWND);`
`ON_WM_CHAR()`	`afx_msg void` `OnChar(UINT, UINT, UINT);`
`ON_WM_CHARTOITEM()`	`afx_msg int` `OnCharToItem(UINT, CWnd*, UINT);`
`ON_WM_CHILDACTIVATE()`	`afx_msg void` `OnChildActivate();`
`ON_WM_CLIPBOARDUPDATE()`	`afx_msg void` `OnClipboardUpdate();`
`ON_WM_CLOSE()`	`afx_msg void` `OnClose();`
`ON_WM_COMPACTING()`	`afx_msg void` `OnCompacting(UINT);`
`ON_WM_COMPAREITEM()`	`afx_msg int` `OnCompareItem(LPCOMPAREITEMSTRUCT);`
`ON_WM_CONTEXTMENU()`	`afx_msg void` `OnContextMenu(CWnd*, CPoint);`
`ON_WM_COPYDATA()`	`afx_msg BOOL` `OnCopyData(CWnd* pWnd, COPYDATASTRUCT* pCopyDataStruct);`
`ON_WM_CREATE()`	`afx_msg int` `OnCreate(LPCREATESTRUCT);`
`ON_WM_CTLCOLOR()`	`afx_msg HBRUSH` `OnCtlColor(CDC, CWnd, UINT);`

See also