OpenEuphoria

Re: Help with SystemParametersInfo call

• Posted by CChris <christian.cuvier at agric?lture.g?uv.fr> Nov 07, 2007
• 634 views

There is an inconsistency on MSDN indeed (
http://msdn2.microsoft.com/en-us/library/ms724506.aspx ). The descriotion of the
members wrongly refers to them as pointers to LOGFONT structures, but the list in
the grey rectangle mentions LOGFONT type parameters, which is correct.

By the way, in win32lib 0.70.1 and later:
you can say:

-- define a structure member as a LOGFONT structure
someStruct_myLogFont = w32allot(ID_LOGFONT) 
-- define a structure member as an array of LOGFONT structures 
someStruct_myLogFont = w32allot({3,ID_LOGFONT}) 
-- nested fields can be specified like this
w32store(addr,{someStruct_myLogFont,lfHeight},120)

w32constants.ew has quite a few definitions like this.

Check out the docs for further ways to deal with variable size members, or
arrays which are counted, or whose ends have a specific marker (some Windows
structures are like that :( ). Unions are supported too.

CChris