| 90 | usize kPageSize = 0; |
| 91 | |
| 92 | bool isAddressReadable(void *address) { |
| 93 | if (kPageSize == 0) { |
| 94 | SYSTEM_INFO si = {}; |
| 95 | GetSystemInfo(&si); |
| 96 | kPageSize = si.dwPageSize; |
| 97 | } |
| 98 | void *pageBase = reinterpret_cast<void *>(reinterpret_cast<uintptr>(address) & ~(kPageSize - 1)); |
| 99 | MEMORY_BASIC_INFORMATION info = {}; |
| 100 | if (VirtualQuery(pageBase, &info, sizeof(info)) == 0) { |
| 101 | return false; |
| 102 | } |
| 103 | return (info.Protect & PAGE_READONLY) != 0 || (info.Protect & PAGE_READWRITE) != 0; |
| 104 | } |
| 105 | |
| 106 | int HookIATProcedure(HMODULE hModule, LPCSTR procName, FARPROC replacement) { |
| 107 | if (hModule == nullptr || procName == nullptr || replacement == nullptr) { |