[Wine] Hey! GWLP_USERDATA is for the user, not for the OS !
yves.surrel
wineforum-user at winehq.org
Mon May 9 10:24:58 CDT 2011
Hi
In the definition of IOCS_Attach in atl_ax.c, a "this" handle is stored in the window user data with SetWindowLongPtr and the GWLP_USERDATA parameter. This is used when an ActiveX control is attached to a window.
The user data is for the user, not for the OS, and a weird interaction happens when a window that already uses the user data is supposed to be hosting an ActiveX object.
Yves
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