#include <windows.h>
#include <dbt.h>

char FirstDriveFromMask (ULONG unitmask)
{
	char i;

	for (i = 0; i < 26; ++i)
	{
		if (unitmask & 0x1)
			break;
		unitmask = unitmask >> 1;
	}
	return (i + 'A');
}
void Main_OnDeviceChange (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
	PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
	char szMsg[80];

	switch(wParam)
	{
	case DBT_DEVICEARRIVAL:
		if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)
		{
			PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
			if (lpdbv -> dbcv_flags & DBTF_MEDIA)
			{
				wsprintf (szMsg, "Le lecteur %c: est arrivé\n",
				FirstDriveFromMask(lpdbv ->dbcv_unitmask));
				MessageBox (NULL, szMsg, "WM_DEVICECHANGE", MB_OK);
			}
		}
		break;
	case DBT_DEVICEREMOVECOMPLETE:
		if (lpdb -> dbch_devicetype == DBT_DEVTYP_VOLUME)
		{
			PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
			if (lpdbv -> dbcv_flags & DBTF_MEDIA)
			{
				wsprintf (szMsg, "Le lecteur %c: est parti\n",
				FirstDriveFromMask(lpdbv ->dbcv_unitmask));
				MessageBox (NULL, szMsg, "WM_DEVICECHANGE", MB_OK);
			}
		}
		break;
	}
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
	case WM_DEVICECHANGE:
		Main_OnDeviceChange (hWnd, wParam, lParam);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE, LPTSTR, int nCmdShow)
{
	MSG msg;
	WNDCLASS wc;

	ZeroMemory(&wc, sizeof(wc));
	wc.style = CS_HREDRAW | CS_VREDRAW;
	wc.lpfnWndProc = WndProc;
	wc.hInstance = hInstance;
	wc.lpszClassName = "WND";
	RegisterClass(&wc);
	CreateWindow("WND", "", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
   //ShowWindow(hWnd, nCmdShow);
   //UpdateWindow(hWnd);
	while (GetMessage(&msg, NULL, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}
	return (int) msg.wParam;
}