Deeper down the rabbit hole, more dangerous “useless” blocks of code won’t be found with “find usages” because the usage either:
isn’t in the project, and is external. Like a powershell script calling a function present in the DLL, or your system’s equivalent. Or even hardware accessing it directly at a known address, like an IRQ table
is accessed via reflection, which the IDE won’t know about
for bonus points, the linker depends on it to make a functioning binary. Or some other dodgy code may break at runtime if offset from its original location in the binary…
Deeper down the rabbit hole, more dangerous “useless” blocks of code won’t be found with “find usages” because the usage either:
isn’t in the project, and is external. Like a powershell script calling a function present in the DLL, or your system’s equivalent. Or even hardware accessing it directly at a known address, like an IRQ table
is accessed via reflection, which the IDE won’t know about
for bonus points, the linker depends on it to make a functioning binary. Or some other dodgy code may break at runtime if offset from its original location in the binary…