hCtl = BCX_COMBOBOX(Text$, _
                   hWndParent, _
                      hCtlID%, _
                        Xpos%, _
                        Ypos%, _
                       Width%, _
                      Height%  _
                  [,WinStyle%] _
                [,ExWinStyle%])

 Parameters:

• Text$ Not used.
• hWndParent Handle to the parent window of the combobox being created.
• hCtlID% Specifies the identifier of the combobox being created. The identifier is an integer value used by the combobox being created to notify its parent about events. The identifier must be unique for each control created with the same parent window.
• Xpos% Specifies the initial horizontal position of the combobox being created. X% is the x-coordinate of the upper-left corner of the combobox being created relative to the upper-left corner of the parent window's client area.
• Ypos% Specifies the initial vertical position of the combobox being created. Y% is the initial y-coordinate of the upper-left corner of the combobox being created relative to the upper-left corner of the parent window's client area.
• Width% Specifies the width, in device units or, if the PIXELS optional parameter was specified in the GUI statement, in pixels, of the combobox being created.
• Height% Specifies the height, in device units or, if the PIXELS optional parameter was specified in the GUI statement, in pixels , of the combobox being created.
• WinStyle% [OPTIONAL] If the WinStyle% parameter is used, the default Window Style for a BCX_COMBOBOX control, WS_CHILD | WS_VISIBLE | CBS_DROPDOWN | CBS_SORT | WS_VSCROLL | WS_TABSTOP, is replaced with the value in WinStyle%. See your Win32 SDK or PSDK Reference help for more information about valid Window Styles.
• ExWinStyle% [OPTIONAL] The default Extended Window Style for a BCX_COMBOBOX control is WS_EX_CLIENTEDGE. See your Win32 SDK or PSDK Reference help for more information about valid Extended Window Styles.

 Return Value:

• hCtl, the return value, is a handle to the combobox if the function succeeds. If the function fails, the return value is NULL.