C / C++ / MFC

AFX_MANAGE_STATE(AfxGetStaticModuleState());

alex_kenobe wrote:

avi video file

<br />
CAnimateCtrl m_Ctrl;	<br />
m_Ctrl.Create(WS_CHILD|WS_VISIBLE,CRect(0,0,100,100),this,1);	<br />
m_Ctrl.Open("C:\\WINDOWS\\clock.avi");	<br />
m_Ctrl.Play(0,-1,-1);<br />

<br />
MCI_DGV_STATUS_PARMS	mciStatus;<br />
...<br />
...<br />
<br />
mciStatus.dwItem = MCI_DGV_STATUS_HWND;<br />
mciSendCommand(DeviceID,MCI_STATUS, <br />
MCI_STATUS_ITEM,(DWORD)&mciStatus);<br />
<br />
m_hWndMovie = (HWND)mciStatus.dwReturn;//handle movie<br />

Sagito wrote:

The problem is, the function returns a bad pointer (0x00000fb8)

<br />
int _tmain(int argc, _TCHAR* argv[])<br />
{<br />
	int erro = 0;<br />
<br />
	Localizar_ZP3();<br />
<br />
	cout << "A procurar abrir comunicacao com central no endereco: " << endl;<br />
	cout << Devices[1] << endl;<br />
<br />
	hUsbDevice = CreateFile(Devices[0].c_str(), GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);<br />
<br />
	erro = GetLastError();<br />
	cout << endl << "Verificacao de erros no CreateFile: " << erro << endl << endl;<br />
	<br />
	/****************************** Tentar receber dados *********************************/<br />
<br />
	if (!Comunicar())<br />
		cout << "Erro ao estabelecer comunicacao..." << endl;<br />
	else<br />
		cout << "Comunicacao foi estabelecida com sucesso!" << endl;<br />
<br />
	cout << "A terminar ligacao..." << endl;<br />
	CloseHandle(hUsbDevice);<br />
<br />
	if (0 == GetLastError())<br />
		cout << "Ligacao terminada com sucesso!" << endl;<br />
	else<br />
	{<br />
		cout << "Ocorreu um erro ao terminar ligacao..." << endl;<br />
		cout << "Codigo de erro: " << GetLastError() << endl;<br />
	}<br />
<br />
	cout << endl;<br />
	system("pause");<br />
<br />
	return 0;<br />
}<br />
<br />
int Localizar_ZP3()<br />
{<br />
	cout << "A entrar no loop de pesquisa de equipamentos USB..." << endl << endl;<br />
<br />
	HDEVINFO hInfo = SetupDiGetClassDevs(&ZP3COMM_GUID, NULL, NULL, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);<br />
<br />
	int i;<br />
<br />
	for (DWORD i=0; ; ++i)<br />
	{<br />
		SP_INTERFACE_DEVICE_DATA Interface_Info;<br />
		Interface_Info.cbSize = sizeof(Interface_Info);<br />
<br />
		int erro = 0;<br />
<br />
		if (!SetupDiEnumDeviceInterfaces(hInfo, NULL, (LPGUID) &ZP3COMM_GUID,i, &Interface_Info))<br />
		{<br />
			erro = GetLastError();<br />
<br />
			if (erro == 259)<br />
				cout << "Fim dos itens a listar!" << endl;<br />
			<br />
			cout << "Numero de iteracoes: " << i << endl << endl;<br />
<br />
			SetupDiDestroyDeviceInfoList(hInfo);<br />
			return(i);<br />
		}<br />
<br />
		DWORD needed;<br />
		<br />
		SetupDiGetInterfaceDeviceDetail(hInfo, &Interface_Info, NULL, 0, &needed, NULL);<br />
		PSP_INTERFACE_DEVICE_DETAIL_DATA detail = (PSP_INTERFACE_DEVICE_DETAIL_DATA) malloc(needed);<br />
		<br />
		if (!detail)<br />
		{<br />
			SetupDiDestroyDeviceInfoList(hInfo);<br />
			return(i);<br />
		}<br />
<br />
		detail->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);<br />
<br />
		if (!SetupDiGetInterfaceDeviceDetail(hInfo, &Interface_Info,detail, needed,NULL, NULL))<br />
		{<br />
			free((PVOID) detail);<br />
			SetupDiDestroyDeviceInfoList(hInfo);<br />
			return(i);<br />
		}<br />
<br />
		char name[MAX_PATH];<br />
		strncpy(name, detail->DevicePath, sizeof(name));<br />
		free((PVOID) detail);<br />
<br />
		cout << "Endereco " << i << ": " << endl;<br />
		cout << name << endl << endl;<br />
		Devices[i] = name;<br />
	}<br />
<br />
	return 0;<br />
}<br />
<br />
bool Comunicar()<br />
{<br />
	ULONG nBytes;<br />
	DWORD numLidos;<br />
	PVENDORPACKET pPacket = NULL;<br />
	char* BufferLeitura = NULL;<br />
<br />
	bool sucesso = true;<br />
<br />
	sucesso = ReadFile(hUsbDevice, BufferLeitura, 80, &numLidos, NULL); //DeviceIoControl(hUsbDevice, IOCTL_LER, NULL, 0, pPacket, 8, &nBytes, NULL);<br />
<br />
	if (sucesso)<br />
	{<br />
		cout << "A operacao de comunicacao foi bem sucedida." << endl;<br />
		cout << BufferLeitura << endl;<br />
		cout << numLidos << endl;<br />
		cout << endl;<br />
	}<br />
	else<br />
	{<br />
		cout << "Ocorreu um erro ao executar ReadFile()" << endl;<br />
		cout << "Codigo de erro: " << GetLastError() << endl;<br />
	}<br />
<br />
	return sucesso;<br />
}