Take a look at this code. It sets the style properties for cell (4,2).

SetStyleRange( CGXRange(4, 2), CGXStyle() .SetValue("Welcome") //Text to be displayed .SetControl(GX_IDS_CTRL_STATIC) //Static, no editing .SetVerticalAlignment(DT_VCENTER) //Center vertical .SetHorizontalAlignment(DT_CENTER)//Center horizontal .SetEnabled(FALSE) // User cannot click on it );

At first glance, you might think the syntax is wrong. SetStyleRange() takes two arguments in the above call. The second argument is:

CGXStyle() .SetValue("Welcome") .SetControl(GX_IDS_CTRL_STATIC) .SetVerticalAlignment(DT_VCENTER) .SetHorizontalAlignment(DT_CENTER) .SetEnabled(FALSE)

The methods SetValue(), SetControl(), SetVerticalAlignment(), SetHorizontalAlignment(), and SetEnabled() are all members of CGXStyle. Each of these methods has a return value of the this pointer. That is, each method returns a reference to its object. So the call to CGXStyle().SetValue("Welcome") returns a reference to the style object which allows it to call SetControl(GX_IDS_CTRL_STATIC), which in turn returns a reference to the style object, which allows it to call SetVerticalAlignment(DT_VCENTER), and so on. The code above is a shortcut for writing the code below. It is intelligible and makes it easier for the programmer by allowing him to write a single statement to initialize all the attributes instead of one statement for each attribute.

SetStyleRange(CGXRange(4,2), CGXStyle().SetValue("Welcome")); SetStyleRange(CGXRange(4,2), CGXStyle().SetControl(GX_IDS_CTRL_STATIC)); SetStyleRange(CGXRange(4,2), CGXStyle().SetVerticalAlignment(DT_VCENTER)); SetStyleRange(CGXRange(4,2), CGXStyle().SetHorizontalAlignment(DT_CENTER)); SetStyleRange(CGXRange(4,2), CGXStyle().SetEnabled(FALSE));