- Add IntLoadKeyboardLayout (Win: LoadKeyboardLayoutWorker) helper function.
- Use it in LoadKeyboardLayoutW and LoadKeyboardLayoutEx functions.
CORE-11700
Need a way to send WM_DEVICECHANGE from the Service manager application.
Next step is to process it in the Client/Server Run-time Subsystem.
See CORE-16492.
This function is a condensed version of LpkPSMTextOut() (from lpk.dll),
but not bug-for-bug equivalent.
The main difference is that the underscore is drawn without taking into
account any kind of script processing.