Detect if running in 64bit OS - Real's PowerBuilder How-to

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Detect if running in 64bit OSTag(s): Win API

One way check is to check if the current Powerbuilder process is running in WOW64 mode (ie. the 32bit emulation mode).

[Local external definitions]

FUNCTION long IsWow64Process(long hwnd, ref  boolean Wow64Process) &
    LIBRARY "KERNEL32.DLL"

FUNCTION long GetCurrentProcess ()  LIBRARY "KERNEL32.DLL"

[Powerscript]

boolean wow64 =false
IsWow64Process(GetCurrentProcess(), wow64)
MessageBox("Running in 64b env", wow64)

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