I want to know, at run time, whether I’m running on 32 bit or 64 bit windows. The OSVERSIONINFOEX structure tells me the major and minor version, but I’m guessing I need the build numbers. Anyone know what they are?
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I want to know, at run time, whether I’m running on 32 bit or 64 bit windows. The OSVERSIONINFOEX structure tells me the major and minor version, but I’m guessing I need the build numbers. Anyone know what they are?
If your application is compiled for 64-bit, then the answer’s easy: you’re running on 64-bit Windows.
If your application is compiled for 32-bit, you need to call IsWow64Process. This function is only exported on Windows XP or later; if you want to support earlier versions of Windows, you’ll need to use GetProcAddress to get a pointer to this function.