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AGL
New Member

Russia
8 Posts

Posted - Mar 01 2006 : 01:21:55 AM

I'm using VAX1440 under VS6
See expression below:

DWORD ofslcharset = (DWORD)&((LOGFONTW*)NULL)->lfCharSet;

VAX can't tell where "lfCharSet" member is declared.
But in the same expression with two additional brackets:

DWORD ofslcharset = (DWORD)&(((LOGFONTW*)NULL)->lfCharSet);

it works fine.

feline
Whole Tomato Software

United Kingdom
19021 Posts

Posted - Mar 01 2006 : 7:11:15 PM

if you mean that lfCharSet is underlined as a mistyped symbol in the first line then i am seeing the same thing here. if you mean something else then i do not follow.

case=1014

zen is the art of being at one with the two'ness

jpizzi
Tomato Guru

USA
642 Posts

Posted - Mar 02 2006 : 12:17:00 AM

quote:
DWORD ofslcharset = (DWORD)&((LOGFONTW*)NULL)->lfCharSet;
DWORD ofslcharset = (DWORD)&(((LOGFONTW*)NULL)->lfCharSet);

Wow. I'm having trouble parsing that. It looks to me like you are explicitly de-referencing a NULL pointer, and then taking the address of the result. How is that supposed to work? (I know, that doesn't make too much difference to the question you posed, but....)

Joe Pizzi

AGL
New Member

Russia
8 Posts

Posted - Mar 02 2006 : 01:11:52 AM

>jpizzi
This code is needed to get offset to lfCharSet member from beginning of structure LOGFONTW

feline
Whole Tomato Software

United Kingdom
19021 Posts

Posted - Mar 02 2006 : 6:30:23 PM

very occasionally i need to get the offset into a structure, and i am sure i do it in a simpler looking manor.

*considers* however i actually have an instance of the structure in hand when i do this, which makes it easier.