-/*** Autogenerated by WIDL 0.9.30 from axvlc.idl - Do not edit ***/
+/*** Autogenerated by WIDL 0.9.27 from axvlc.idl - Do not edit ***/
#include <rpc.h>
#include <rpcndr.h>
#ifdef __cplusplus
extern "C" {
#endif
-#include <oaidl.h>
+#include <ocidl.h>
DEFINE_GUID(LIBID_AXVLC, 0xdf2bbe39, 0x40a8, 0x433b, 0xa2,0x79, 0x07,0x3f,0x48,0xda,0x94,0xb6);
) = 0;
virtual HRESULT STDMETHODCALLTYPE takeSnapshot(
- BSTR filePath) = 0;
+ IPictureDisp** picture) = 0;
};
#else
HRESULT (STDMETHODCALLTYPE *takeSnapshot)(
IVLCVideo* This,
- BSTR filePath);
+ IPictureDisp** picture);
END_INTERFACE
} IVLCVideoVtbl;
DWORD* pdwStubPhase);
HRESULT CALLBACK IVLCVideo_takeSnapshot_Proxy(
IVLCVideo* This,
- BSTR filePath);
+ IPictureDisp** picture);
void __RPC_STUB IVLCVideo_takeSnapshot_Stub(
IRpcStubBuffer* This,
IRpcChannelBuffer* pRpcChannelBuffer,
#include <shlwapi.h>
#include <wininet.h>
+#include <tchar.h>
using namespace std;
return hr;
};
-STDMETHODIMP VLCVideo::takeSnapshot(BSTR filePath)
+STDMETHODIMP VLCVideo::takeSnapshot(LPPICTUREDISP* picture)
{
- if( NULL == filePath )
+ if( NULL == picture )
return E_POINTER;
- if( 0 == SysStringLen(filePath) )
- return E_INVALIDARG;
-
libvlc_instance_t* p_libvlc;
HRESULT hr = _p_instance->getVLC(&p_libvlc);
if( SUCCEEDED(hr) )
libvlc_input_t *p_input = libvlc_playlist_get_input(p_libvlc, &ex);
if( ! libvlc_exception_raised(&ex) )
{
- char *psz_filepath = CStrFromBSTR(CP_UTF8, filePath);
- if( NULL == psz_filepath )
+ static int uniqueId = 0;
+ TCHAR path[MAX_PATH+1];
+
+ int pathlen = GetTempPath(MAX_PATH-24, path);
+ if( (0 == pathlen) || (pathlen > (MAX_PATH-24)) )
+ return E_FAIL;
+
+ /* check temp directory path by openning it */
{
- return E_OUTOFMEMORY;
+ HANDLE dirHandle = CreateFile(path,
+ GENERIC_READ,
+ FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
+ NULL,
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS, NULL);
+ if( INVALID_HANDLE_VALUE == dirHandle )
+ {
+ _p_instance->setErrorInfo(IID_IVLCVideo,
+ "Invalid temporary directory for snapshot images, check values of TMP, TEMP envars.");
+ return E_FAIL;
+ }
+ else
+ {
+ BY_HANDLE_FILE_INFORMATION bhfi;
+ BOOL res = GetFileInformationByHandle(dirHandle, &bhfi);
+ CloseHandle(dirHandle);
+ if( !res || !(bhfi.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) )
+ {
+ _p_instance->setErrorInfo(IID_IVLCVideo,
+ "Invalid temporary directory for snapshot images, check values of TMP, TEMP envars.");
+ return E_FAIL;
+ }
+ }
}
- /* TODO: check file security */
+ TCHAR filepath[MAX_PATH+1];
+
+ _stprintf(filepath, TEXT("%sAXVLC%lXS%lX.bmp"),
+ path, GetCurrentProcessId(), ++uniqueId);
+
+#ifdef _UNICODE
+ /* reuse path storage for UTF8 string */
+ char *psz_filepath = (char *)path;
+ WCHAR* wpath = filepath;
+#else
+ char *psz_filepath = path;
+ /* first convert to unicode using current code page */
+ WCHAR wpath[MAX_PATH+1];
+ if( 0 == MultiByteToWideChar(CP_ACP, 0, filepath, -1, wpath, sizeof(wpath)/sizeof(WCHAR)) )
+ return E_FAIL;
+#endif
+ /* convert to UTF8 */
+ pathlen = WideCharToMultiByte(CP_UTF8, 0, wpath, -1, psz_filepath, sizeof(path), NULL, NULL);
+ // fail if path is 0 or too short (i.e pathlen is the same as storage size)
+ if( (0 == pathlen) || (sizeof(path) == pathlen) )
+ return E_FAIL;
+
+ /* take snapshot into file */
libvlc_video_take_snapshot(p_input, psz_filepath, &ex);
libvlc_input_free(p_input);
if( ! libvlc_exception_raised(&ex) )
{
- return NOERROR;
+ hr = E_FAIL;
+ /* open snapshot file */
+ HANDLE snapPic = LoadImage(NULL, filepath, IMAGE_BITMAP,0, 0, LR_CREATEDIBSECTION|LR_LOADFROMFILE);
+ if( snapPic )
+ {
+ PICTDESC snapDesc;
+
+ snapDesc.cbSizeofstruct = sizeof(PICTDESC);
+ snapDesc.picType = PICTYPE_BITMAP;
+ snapDesc.bmp.hbitmap = (HBITMAP)snapPic;
+ snapDesc.bmp.hpal = NULL;
+
+ hr = OleCreatePictureIndirect(&snapDesc, IID_IPictureDisp, TRUE, (LPVOID*)picture);
+ if( FAILED(hr) )
+ {
+ *picture = NULL;
+ DeleteObject(snapPic);
+ }
+ }
+ DeleteFile(filepath);
+ return hr;
}
}
_p_instance->setErrorInfo(IID_IVLCVideo, libvlc_exception_get_message(&ex));