CBEM_SETEXTENDEDSTYLE


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CBEM_SETEXTENDEDSTYLE
CBEM_SETEXTENDEDSTYLE
    wParam = (WPARAM)(DWORD) dwExMask;
    lParam = (LPARAM)(DWORD) dwExStyle;
Sets extended styles within a ComboBoxEx control.
Returns a DWORD value that contains the extended styles previously used for the control.

dwExMask
A DWORD value that indicates which styles in dwExStyle are to be affected. Only the extended styles in dwExMask will be changed. If this parameter is zero, then all of the styles in dwExStyle will be affected.
dwExStyle
A DWORD value that contains the ComboBoxEx control extended styles to set for the control.

dwExMask allows you to modify one or more extended styles without having to retrieve the existing styles first. For example, if you pass CBES_EX_NOEDITIMAGE for dwExMask and 0 for dwExStyle, the CBES_EX_NOEDITIMAGE style will be cleared, but all other styles will remain the same.

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