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#+build windows
package sys_windows

foreign import kernel32 "system:Kernel32.lib"

@(default_calling_convention="system")
foreign kernel32 {
	CreateToolhelp32Snapshot    :: proc(dwFlags: DWORD, th32ProcessID: DWORD) -> HANDLE ---
	Process32FirstW             :: proc(hSnapshot: HANDLE, lppe: LPPROCESSENTRY32W) -> BOOL ---
	Process32NextW              :: proc(hSnapshot: HANDLE, lppe: LPPROCESSENTRY32W) -> BOOL ---
	Thread32First               :: proc(hSnapshot: HANDLE, lpte: LPTHREADENTRY32) -> BOOL ---
	Thread32Next                :: proc(hSnapshot: HANDLE, lpte: LPTHREADENTRY32) -> BOOL ---
	Module32FirstW              :: proc(hSnapshot: HANDLE, lpme: LPMODULEENTRY32W) -> BOOL ---
	Module32NextW               :: proc(hSnapshot: HANDLE, lpme: LPMODULEENTRY32W) -> BOOL ---
	Heap32ListFirst             :: proc(hSnapshot: HANDLE, lphl: LPHEAPLIST32) -> BOOL ---
	Heap32ListNext              :: proc(hSnapshot: HANDLE, lphl: LPHEAPLIST32) -> BOOL ---
	Heap32First                 :: proc(lphe: LPHEAPENTRY32, th32ProcessID: DWORD, th32HeapID: ULONG_PTR) -> BOOL ---
	Heap32Next                  :: proc(lphe: LPHEAPENTRY32) -> BOOL ---
	Toolhelp32ReadProcessMemory :: proc(
		th32ProcessID:       DWORD,
		lpBaseAddress:       LPCVOID,
		lpBuffer:            LPVOID,
		cbRead:              SIZE_T,
		lpNumberOfBytesRead: ^SIZE_T,
	) -> BOOL ---
}

MAX_MODULE_NAME32 :: 255

TH32CS_INHERIT      :: 0x80000000
TH32CS_SNAPHEAPLIST :: 0x00000001
TH32CS_SNAPPROCESS  :: 0x00000002
TH32CS_SNAPTHREAD   :: 0x00000004
TH32CS_SNAPMODULE   :: 0x00000008
TH32CS_SNAPMODULE32 :: 0x00000010
TH32CS_SNAPALL :: TH32CS_SNAPHEAPLIST | TH32CS_SNAPPROCESS | TH32CS_SNAPTHREAD | TH32CS_SNAPMODULE

PROCESSENTRY32W :: struct {
	dwSize:              DWORD,
	cntUsage:            DWORD,
	th32ProcessID:       DWORD,
	th32DefaultHeapID:   ULONG_PTR,
	th32ModuleID:        DWORD,
	cntThreads:          DWORD,
	th32ParentProcessID: DWORD,
	pcPriClassBase:      LONG,
	dwFlags:             DWORD,
	szExeFile:           [MAX_PATH]WCHAR,
}

LPPROCESSENTRY32W :: ^PROCESSENTRY32W

THREADENTRY32 :: struct {
	dwSize:             DWORD,
	cntUsage:           DWORD,
	th32ThreadID:       DWORD,
	th32OwnerProcessID: DWORD,
	tpBasePri:          LONG,
	tpDeltaPri:         LONG,
	dwFlags:            DWORD,
}

LPTHREADENTRY32 :: ^THREADENTRY32

MODULEENTRY32W :: struct {
	dwSize:        DWORD,
	th32ModuleID:  DWORD,
	th32ProcessID: DWORD,
	GlblcntUsage:  DWORD,
	ProccntUsage:  DWORD,
	modBaseAddr:   ^BYTE,
	modBaseSize:   DWORD,
	hModule:       HMODULE,
	szModule:      [MAX_MODULE_NAME32 + 1]WCHAR,
	szExePath:     [MAX_PATH]WCHAR,
}

LPMODULEENTRY32W :: ^MODULEENTRY32W

HEAPLIST32 :: struct {
	dwSize:        SIZE_T,
	th32ProcessID: DWORD,
	th32HeapID:    ULONG_PTR,
	dwFlags:       DWORD,
}

LPHEAPLIST32 :: ^HEAPLIST32

HEAPENTRY32 :: struct {
	dwSize:        SIZE_T,
	hHandle:       HANDLE,
	dwAddress:     ULONG_PTR,
	dwBlockSize:   SIZE_T,
	dwFlags:       DWORD,
	dwLockCount:   DWORD,
	dwResvd:       DWORD,
	th32ProcessID: DWORD,
	th32HeapID:    ULONG_PTR,
}

LPHEAPENTRY32 :: ^HEAPENTRY32