C / C++ / MFC

Gdiplus::Bitmap* LoadBitmapFromUrl(CString const& url)
{
   HINTERNET hInternet = WinHttpOpen(L"hello", WINHTTP_ACCESS_TYPE_DEFAULT_PROXY, WINHTTP_NO_PROXY_NAME, WINHTTP_NO_PROXY_BYPASS, 0);
   if (!hInternet) return 0;
   HINTERNET hConnection = WinHttpConnect(hInternet, L"www.python.org", INTERNET_DEFAULT_PORT, 0);
   if (!hConnection) return 0;
   LPCWSTR types[] = { L"image/jpeg", 0 };
   HINTERNET hRequest = WinHttpOpenRequest(hConnection, L"GET", L"/images/success/standrews.jpg", 0, WINHTTP_NO_REFERER, types, 0);
   if (!hRequest) return 0;
   if (!WinHttpSendRequest(hRequest, WINHTTP_NO_ADDITIONAL_HEADERS, 0, WINHTTP_NO_REQUEST_DATA, 0, 0, 0)) return 0;
   if (!WinHttpReceiveResponse(hRequest, 0)) return 0;
   HGLOBAL gblBuffer = GlobalAlloc(0, 1<<20);
   LPBYTE buffer = (LPBYTE)GlobalLock(gblBuffer);
   DWORD nBytesRead;
   if (!WinHttpReadData(hRequest, buffer, 1<<20, &nBytesRead)) return 0;
   IStream* pStream = 0;
   CreateStreamOnHGlobal(gblBuffer, FALSE, &pStream);
   ULARGE_INTEGER size; size.QuadPart = nBytesRead;
   pStream->SetSize(size);
   LARGE_INTEGER offset; offset.QuadPart = 6;
   pStream->Seek(offset, STREAM_SEEK_SET, 0);
   return new Gdiplus::Bitmap(pStream, FALSE);
}

// Initialize GDI+.
Gdiplus::GdiplusStartupInput gdiplusStartupInput;
Gdiplus::GdiplusStartup(&m_gdiplusToken, &gdiplusStartupInput, NULL);

J.B. wrote:

I'd get invalid image if I offset the stream by 6 bytes. I am not sure why it worked in your case.

Stuart Dootson wrote:

Maybe because I was using WinHttpReadData rather than getting a stream directly from the IWinHttpRequest object.

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jimjim733 wrote:

If the button is pressed again I want to close the application. How can I do this safely?

I am BATMAN wrote:

...use TerminateProcess().

jimjim733 wrote:

safely

brucewayn wrote:

this happend for every 5 mins

brucewayn wrote:

However the data is going beyong 800MB and becoz of this the network is getting blocked.

brucewayn wrote:

thus i used an array and send the data from vector to an array

brucewayn wrote:

Thus please let me know how can i send the data from vector to an array even if the size of the data is more than 3GB???

kaku_lala wrote:

Basically, I am looking to use only two states TRUE or FALSE, YES or NO anything which is not FALSE will be TRUE, so no intermediate state.

kaku_lala wrote:

Someone pointed that using float would be wrong. Just looking to know that why it would be wrong.
Quote Selected Text

kaku_lala wrote:

Why can't I use float data type to define my own boolean type?

float f;
if (f) { /* Do stuff */ }

#include <iostream>

int main()
{
   float g = 0.0;
   while (g < 10.0)
   {
      g += 0.1;
      std::cout << g << std::endl;
   }
}

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kaku_lala wrote:

Why can't I use float data type to define my own boolean type?

typedef float FLOATBOOL;

bool func_check_BF(FLOATBOOL x)
{
	if (x)
	{
		cout << x << " is TRUE - FLOATBOOL" << endl;
		return true;
	}
	else
	{
		cout << x << " is FALSE - FLOATBOOL" << endl;
		return false;
	}
	
}

bool func_check(bool x)
{
	if (x)
	{
		cout << x << " is TRUE - bool" << endl;
		return true;
	}
	else
	{
		cout << x << " is FALSE - bool" << endl;
		return false;
	}	
}
int main(int argc, char* argv[])
{	 
	func_check_BF((FLOATBOOL)0);
	func_check_BF((FLOATBOOL)0.1);
	func_check_BF((FLOATBOOL)1);
	func_check((bool)0);
	func_check((bool)0.1);
	func_check((bool)1);
	return 0;
}