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CommandHandler

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The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at CommandHandler.

CommandHandleris the function identified by the third parameter of theCOMMAND_HANDLER` macro in your message map.

Syntax

 
    LRESULT 
    CommandHandler 
 (
    WORD wNotifyCode,  
    WORD wID,  
    HWND hWndCtl,  
    BOOL& bHandled);

Parameters

wNotifyCode
The notification code.

wID
The identifier of the menu item, control, or accelerator.

hWndCtl
A handle to a window control.

bHandled
The message map sets bHandled to TRUE before CommandHandler is called. If CommandHandler does not fully handle the message, it should set bHandled to FALSE to indicate the message needs further processing.

Return Value

The result of message processing. 0 if successful.

Remarks

For an example of using this message handler in a message map, see COMMAND_HANDLER.

See Also

Implementing a Window
Message Maps
WM_NOTIFY