#include<tchar.h>
#define _HOOK_DLL_
#include"lab4_C_lib.h"

#pragma data_seg(".SHARDATA")
	HWND hWnd=NULL;
	HINSTANCE hInstance;
	HHOOK hHook;
#pragma data_seg()

#pragma comment(linker, "/section:.SHARDATA,rws")

BOOL APIENTRY DllMain( HMODULE hModule, 
					  DWORD  ul_reason_for_call,  LPVOID lpReserved	  )
{	if(ul_reason_for_call == DLL_PROCESS_ATTACH)
	{	hInstance = hModule;
		DisableThreadLibraryCalls(hModule);
	}
	return TRUE;
}
int CALLBACK HookProc(int nCode,WPARAM wParam,LPARAM lParam)
{	INT ret = CallNextHookEx(hHook,nCode,wParam,lParam);
	if(nCode < 0)  return ret;
	if(nCode == HCBT_MOVESIZE)
	{	MessageBox(0,_T("Window was moved or sized!!!"),_T("title"),MB_OK);
		PostMessage(hWnd,HOOK_CBT,wParam,0); 
	}
	return 0;
}
HHOOK InstallHook(HWND hWnd)
{	if(::hWnd != NULL) return FALSE;//уже установили хук
	hHook = SetWindowsHookEx(WH_CBT, (HOOKPROC) HookProc, hInstance, 0); 
	if(hHook != NULL) ::hWnd = hWnd; // ставим hook типа WH_CBT для системы		return hHook;
}
void UninstallHook()
{	if(hWnd == NULL) return;//хук не установлен
	BOOL bResult = UnhookWindowsHookEx(hHook);
	if(bResult == TRUE) hWnd = NULL;
	return;
}