On Windows 10, when I copyed Notepad.exe to the desktop and double-clicked it, it won't start Notepad. This is probably because there is a security protection mechanism (or some mechanism) at work. Tests that assume this mechanism will not work properly on ReactOS. Thus, I had to delete some tests. CORE-17351
KiSetTrapContext is an asm wrapper around RtlSetUnwindContext, which first stores an exception frame to assure that all non-volatile registers were put on the stack, then calls RtlSetUnwindContext to update their first saving positions on the stack and finally restore the exception frame to potentially load any updated registers, that haven't been saved elsewhere on the stack.
RtlpCaptureNonVolatileContextPointers walks the stack and captures the addresses of all non-volatile registers on the stack, when they have been saved first. This is needed to be able to fix up the non-volatile on a system call, which doesn't capture non-volatiles, but relies on them to be restored by the callees.
Instead of only checking for the TargetFrame, also check for a mode change, i.e. RIP went from kernel to user, in which case the target frame was not reached yet, because it was too large, but processing can't continue here.
RtlSetUnwindContext uses RtlpCaptureNonVolatileContextPointers to set the non-volatile registers in the the stack. They will be picked up, when returning back or unwinding, e.g. to the system call handler.
A few of these classes have fixed size lengths, the rest are arbitrary. Also the TokenAuditPolicy class hasn't a size length type specified in the table, which is wrong (and move the corresponding TOKEN_AUDIT_POLICY_INFORMATION structure into the private header).
DLGWINDOWEXTRA is 30 (both on win32 and win64). This has storage for the following entries: DWLP_MSGRESULT (0), DWLP_DLGPROC (8), DWLP_USER (16)
We used to store the dialog info pointer using SetWindowLongPtr (DWLP_ROS_DIALOGINFO == DWLP_USER+sizeof(ULONG_PTR) == 24), which was fine on win32, but failed on win64, since there wasn't enough space left (24 + 8 = 32 > 30).
Rewrite the way the DLGINFO pointer is stored, by adding an additional field to the WND structure and set it using NtUserxSetDialogPointer (which is what it is for).
Also fix too small cbWndExtra for the button class.
CORE-17601
Dynamically load SetThreadUILanguage(), so as to support systems where this API is not present.
Hopefully implemented in a thread-safe manner.
