Winfo-like window outlining

[Mat]

I have seen a number of application make frames like AutoIt's window info does (the black inverted frame), but can't find anything in the windows api. I've even tried using a winapi monitoring program to try and find out. How is this done?

[Jon]

I have seen a number of application make frames like AutoIt's window info does (the black inverted frame), but can't find anything in the windows api. I've even tried using a winapi monitoring program to try and find out. How is this done?

It's just a rectangle using the R2_NOT mode to invert the colours. You draw it again with R2_NOT to re-invert (i.e. to remove the highlight)

[Mat]

Thanks Jon

[Mat]

R2_NOTXORPEN does the trick R2_NOT fills the whole rectangle inverted which is not what we want.

Thanks again Jon

[Jon]

Oh I think we used a hollowbrush as well or something, been a while since I looked.