C / C++ / MFC

<br />
	MCI_DGV_OPEN_PARMS mciOpen;<br />
	MCI_DGV_STATUS_PARMS mciStatus;<br />
	UINT uDeviceID;<br />
	HWND hwndVideo;<br />
	RECT video_rect;<br />
	//<br />
	ZeroMemory(&mciOpen,sizeof(MCI_DGV_OPEN_PARMS));<br />
	mciStatus.dwItem=MCI_DGV_STATUS_HWND;<br />
	mciOpen.lpstrAlias=_T("thevideo");<br />
	mciOpen.lpstrElementName=(LPWSTR)m_szVideoName.GetString();<br />
	mciOpen.hWndParent=this->m_hWnd;<br />
	mciOpen.dwCallback=(DWORD)this->m_hWnd;<br />
	mciOpen.dwStyle=WS_CHILD;<br />
	//<br />
	DWORD ret = mciSendCommand(0,MCI_OPEN,MCI_OPEN_ALIAS|MCI_OPEN_ELEMENT|MCI_DGV_OPEN_PARENT|MCI_DGV_OPEN_WS,(DWORD)&mciOpen);<br />
	if(ret != 0)<br />
	{<br />
		CString dbg_str;<br />
		wchar_t str[100];<br />
		CMajoyComLog::WriteDefaultLog(L"Can't open this file:"+m_szVideoName);<br />
		mciGetErrorString(ret,str,100);<br />
		dbg_str.Format(_T("Error occured：%s"),str);<br />
		CMajoyComLog::WriteDefaultLog(dbg_str);<br />
		MessageBox(m_szVideoName + _T("Can not open Media File"));<br />
		return 0;<br />
	}<br />
	else<br />
	{<br />
		uDeviceID=mciOpen.wDeviceID;<br />
		mciSendCommand(uDeviceID,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)&mciStatus);<br />
		hwndVideo=(HWND)mciStatus.dwReturn;<br />
		// Window position.<br />
		::GetClientRect(hwndVideo,&video_rect);<br />
		//::SetWindowPos(hwndVideo,HWND_TOP,<br />
		//	video_rect.left,video_rect.top,video_rect.right-video_rect.left,video_rect.bottom-video_rect.top,<br />
		//	SWP_SHOWWINDOW|SWP_DEFERERASE);<br />
		//RECT rc;<br />
		//GetWindowRect(&rc);<br />
		//SetWindowPos(&wndTop,<br />
		//	rc.left,rc.top,video_rect.right-video_rect.left,video_rect.bottom-video_rect.top,<br />
		//	SWP_SHOWWINDOW|SWP_NOREDRAW);<br />
		ShowWindow(SW_SHOW);<br />
		UpdateWindow();<br />
	}<br />
	mciSendString(_T("play thevideo"), 0, 0, 0);<br />
	GetParent()->PostMessageW(WM_VIDEO_START);<br />
	SetTimer(1,1000,NULL);<br />
<br />
	m_szVideoName.ReleaseBuffer();<br />

struct person<br />
{<br />
int a;<br />
}<br />
<br />
int main()<br />
{<br />
struct person* start;<br />
<br />
start = malloc(sizeof(struct person)); // i had to do this or it wont be able to pass to the function<br />
func(start);<br />
<br />
<br />
//////////from here i tryed to printf the values of start to check weather it is the same as wat i defined in the function but it always stays the same as it was originally defined any body can please tell em WHY???<br />
return 0;<br />
}<br />
<br />
void func(struct person* inc)<br />
{<br />
struct person* newnode;<br />
newnode = malloc(sizeof(struct person)); // this is where i create a new instance of person<br />
inc = newnode;<br />
}<br />