[ros-dev] Off-topic: Understanding win32k system calls - help please

[Alex Ionescu]

Hi,

It's well known that sometimes Windows will create Windows with  
negative coordinates (maybe you're treating them as unsigned). This is  
how I believe "minimize" works or some other strange GUI behavior  
that's been there since Win 3.1... rchen blogged about it some couple  
years ago.

On 24-Sep-08, at 3:18 PM, Jeetu Golani wrote:

> Hi,
>
> First, I'd like to apologize since what I'm asking doesn't directly  
> relate to
> ReactOS however I'm hoping someone here might be able to shed some  
> light.
>
> I've built a rudimentary win32k profiler and  I've hooked the win32k  
> SDT and
> hooked onto the NtUserCreateWindowEx function in the hope of  
> studying values
> returned by it. I see some strange (to me) values for the x and y
> coordinates - values such as 1547372 etc. I'm not sure how to  
> interpret these
> values and convert them into pixel units or traditional coordinate
> mechanisms. I first thought there must be something wrong with my code
> however I'm not so sure anymore.
>
> Would someone here be able to guide me on how to interpret these  
> values???
>
> Thanks and sorry again
>
> Bye for now
>
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Best regards,
Alex Ionescu