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cutf-8utf-16winapi

SetWindowText show Unrecognizable Code from InternetReadFile()

i want to convert an utf-8 encoded web page source code downloaded using InternetReadFile to utf-16 which windows can recognize.

here is the code snippet:

HINTERNET hConnect,hSession;
char *szBuffer = malloc(WEBSOURCE_SIZE);
wchar_t *wszBuffer = (wchar_t *)malloc(WEBSOURCE_SIZE);
TCHAR szStr[100];
DWORD dwSize=0;
DWORD dwDownloaded;
if(szBuffer == NULL)
{
    MessageBox(hwndGetBtn,TEXT("error"),TEXT("Error"),MB_ICONHAND);
}
GetWindowText(hwndUrlEdt,szStr,sizeof(szStr)/sizeof(TCHAR));
hSession = InternetOpen(TEXT("testWinINet"), PRE_CONFIG_INTERNET_ACCESS, NULL, INTERNET_INVALID_PORT_NUMBER, 0);
hConnect = InternetOpenUrl(hSession,szStr,NULL,0,INTERNET_FLAG_DONT_CACHE,0);
ZeroMemory(szBuffer,WEBSOURCE_SIZE);
while (InternetReadFile(hConnect,szBuffer,WEBSOURCE_SIZE,&dwDownloaded))
{
    if (0==dwDownloaded) break;
    szBuffer[dwDownloaded]=0;
}
len=MultiByteToWideChar(CP_UTF8,0,szBuffer,-1,NULL,0);
MultiByteToWideChar(CP_UTF8,0,szBuffer,-1,wszBuffer,sizeof(wszBuffer));

SetWindowText(hwndShowEdt,wszBuffer);

hwndShowEdt editbox always show Unrecognizable Code while the web page is utf-8 encoded.

so can anyone find the mistake of my code?

Solution

  • the charset of the web page can only be recognized by HTML meta tag :

    <meta http-equiv="Content-Type" content="text/html;charset=gb2312">