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4/8/2010

This message specifies the size of the TBBUTTONstructure.

Syntax 

TB_BUTTONSTRUCTSIZE 
wParam = (WPARAM) 
cb; 

lParam = 0;

Parameters

cb

Size, in bytes, of the TBBUTTONstructure.

lParam

Not used.

Return Value

None.

Remarks

The system uses the size to determine which version of the common control dynamic-link library (DLL) is being used.

If an application uses the CreateWindowExfunction to create the toolbar, the application must send this message to the toolbar before sending the TB_ADDBUTTONSor TB_INSERTBUTTONmessage. The CreateToolbarExfunction automatically sends TB_BUTTONSTRUCTSIZE, and the size of the TBBUTTONstructure is a parameter of the function.

Requirements

Header commctrl.h
Windows Embedded CE Windows CE 1.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also