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Is it possible to get the WinInet interface reference of a browser, IE or firefox
Regards
Rajmohan
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Not sure what you mean by WinInet interface for IE.
But you can check out BHOs and some interface you can get from IE like IWebBrowser2 , IHTMLDocument2 , IHTMLElement etc.
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Thank you so much for your response. Actually I was able to get the IWebrowser2 and IHTMLDocument2 for internet explorer. My aim was to get these type of helper objects to assist Firefox, Since firefox is using WinInet dll ( I was able to find with some tool) I queried about WinInet.
Regards
Rajmohan
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How to load PNG image on the dialog using the Resource ID of the PNG imqage.
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Use GDI+ or CxImage
There is sufficient light for those who desire to see, and there is sufficient darkness for those of a contrary disposition.
Blaise Pascal
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If you are using the MFC Feature Pack you can use the CPngImage class. You can simply Load PNG image from the resource and use it as CBitmap because CPngImage inherits it. Other way is to use the CImage class which is part of ATL but it can load PNG only from file. As far as I remember CImage::LoadFromResource can load only bitmaps. IMHO CPngImage is more convenient when you just need HBITMAP of the PNG and CImage is more convenient when you are going to blit it on some HDC. But if you need to load from resource CPngImage is your class.
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Hi All,
I want to change the color depth of JPEG image.How can I do that?
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As far as i know JPGs ALWAYS have 24 bits per pixel, "by definition".
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Computers are evil, EVIL i tell you!! <
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I want to change color depth like 8 bit instead of 24
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Check out CxImage[^], it might have what you need.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Computers are evil, EVIL i tell you!! <
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I dont want to use such huge library. I am spacific for only one file type (jpeg). Can you suggest me some simple and lesser size code?
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Hmm, maybe GDI+[^], it comes with Windows. If you don't like that either then depending on your needs i would google for some 3rd party library like jpeglib.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Computers are evil, EVIL i tell you!! <
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Hi all,
I am working on transcoding using ffmeg.Im having the mpeg4 video and alaw audio which should be converted to the desired video and audio format.Im reading the frame by frame conversion from my media stream using av_read_frame(...)
int main(int argc, char **argv)
{
const char *filename;
AVOutputFormat *fmt;
AVFormatContext *oc;
AVFormatContext *ic;
AVCodecContext *pCodecCtx;
AVCodec *pCodec;
AVStream *audio_st, *video_st;
int i,frame,video_stream;
av_register_all();
filename = "test.mp4";
if(av_open_input_file(&ic, filename, NULL, 0, NULL)!=0)
return -1;
if(av_find_stream_info(ic)<0)
return -1;
video_stream=-1;
for(i=0; i<10; i++)
if(ic->streams[i]->codec->codec_type==CODEC_TYPE_VIDEO)
{
video_stream=i;
break;
}
if(video_stream==-1)
return -1;
pCodecCtx=ic->streams[video_stream]->codec;
pCodec=avcodec_find_decoder(pCodecCtx->codec_id);
if(pCodec==NULL) return -1;
if(avcodec_open(pCodecCtx, pCodec)<0) return -1;
AVPacket pkt;
AVFrame videoFrame;
fmt = guess_format(NULL, filename, NULL);
if (!fmt) {
printf("Could not deduce output format from file extension: using MPEG.\n");
fmt = guess_format("mpeg", NULL, NULL);
}
if (!fmt) {
fprintf(stderr, "Could not find suitable output format\n");
exit(1);
}
oc = av_alloc_format_context();
if (!oc) {
fprintf(stderr, "Memory error\n");
exit(1);
}
oc->oformat = fmt;
_snprintf(oc->filename, sizeof(oc->filename), "%s", filename);
AVStream* stream = av_new_stream(oc, 0);
AVCodecContext* videoEncoderContext = stream->codec;
setupVideoEncode(videoEncoderContext);
stream->sample_aspect_ratio = av_d2q(1, 255);
stream->pts_wrap_bits = 33;
stream->codec->thread_count = 0;
if (av_set_parameters(oc, 0) < 0) {
return 0;
}
AVCodec* codec = avcodec_find_encoder(videoEncoderContext->codec_id);
if (!codec)
{
return 0;
}
if (avcodec_open(videoEncoderContext, codec) < 0)
{
return 0;
}
av_write_header(oc);
const char *ofilename = "testresult.mp4";
if (!(fmt->flags & AVFMT_NOFILE)) {
if (url_fopen(&oc->pb, ofilename, URL_WRONLY) < 0) {
fprintf(stderr, "Could not open '%s'\n", filename);
exit(1);
}
}
int audioFrameFinished = 0;
int videoFrameFinished = 0;
const int outbuf_size = 640000;
uint8_t outbuf[outbuf_size];
int64_t lastpts = 0;
while(av_read_frame( ic, &pkt ) == 0)
{
if (video_stream == pkt.stream_index)
{
avcodec_get_frame_defaults(&videoFrame);
avcodec_decode_video(pCodecCtx, &videoFrame,&videoFrameFinished,pkt.data, pkt.size);
videoFrame.pts = pkt.dts;
if (videoFrameFinished)
{
int out_size = avcodec_encode_video(videoEncoderContext,outbuf, outbuf_size, &videoFrame); if (out_size > 0)
{
AVPacket outpkt;
av_init_packet(&outpkt);
outpkt.data = outbuf;
outpkt.size = out_size;
outpkt.stream_index = 0;
outpkt.dts = outpkt.pts = videoEncoderContext->coded_frame->pts;
outpkt.flags |=(videoEncoderContext->coded_frame->key_frame) ? PKT_FLAG_KEY : 0;
if (av_write_frame (oc, &outpkt) < 0)
{
return 0;
}
}
}
}
av_free_packet( &pkt );
}
av_write_trailer(oc);
avcodec_close(videoEncoderContext);
av_free(videoEncoderContext);
for(i = 0; i < oc->nb_streams; i++) {
av_freep(&oc->streams[i]);
}
if (!(fmt->flags & AVFMT_NOFILE)) {
url_fclose(oc->pb);
}
av_free(oc);
return 0;
} )
In the above code,the bold statements failed always..(avcodec_open() after avcodec_find_encoder() and avcodec_encode_video(...))
Do any one help me?
Thanx..
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Try calling
avcodec_init();
avcodec_register_all();
near av_register_all();
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hi
I have solved that by assigning correct parameters...(In setupVideoEncode(videoEncoderContext)).
But now im getting crash in av_write_frame(..)inside that loop.
pls help me..
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Hi all,
i m working on Rapi function,so i m using Rapi and Ceutil dll,
but here CFileDialog display strange behaviour,
when i open CFileDialog its crash when Mobile device center not installed,or Rapi.dll and Ceutil.dll place in application exe folder.
please help me how can i resolve this.
thanks in advance.
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To rule out MFC, try using GetOpenFileName() or GetSaveFileName() instead.
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Hi. It can be total removed menu toolbar from an MDI project ? I do this thing in an SDI project , but in MDI failed ...
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You can hide a menubar by this:
m_wndMenuBar.ShowWindow(SW_HIDE);
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m_wndMenuBar is not member data of CMainFrame ....
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I work only in VC6 , that's why m_wndMenuBar is not data member of CMainFrame ...
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How do i know that my process is running as an administrator ??
Thanks in advance...
Yes U Can ...If U Can ,Dream it , U can do it ...ICAN
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How can CreateProcess() be used to tell if a process is being run as administrator?
"One man's wage rise is another man's price increase." - Harold Wilson
"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons
"Man who follows car will be exhausted." - Confucius
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Hey Everyone. My problem is it seems that when I create a .cpp file for a .hpp, when dealing with inheritance, I get the same error which is :
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.hpp(20) : error C2146: syntax error : missing ';' before identifier 'GeoGroup'
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.hpp(20) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.hpp(20) : error C2470: 'GeoGroup' : looks like a function definition, but there is no parameter list; skipping apparent body
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.hpp(20) : error C2059: syntax error : 'public'
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(14) : error C2653: 'GeoGroup' : is not a class or namespace name
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(15) : error C2270: 'draw' : modifiers not allowed on nonmember functions
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(16) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(16) : error C2228: left of '.size' must have class/struct/union
5> type is ''unknown-type''
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(18) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(18) : error C2227: left of '->move' must point to class/struct/union/generic type
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(18) : error C2065: 'refpoint' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(19) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(19) : error C2227: left of '->draw' must point to class/struct/union/generic type
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(20) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(20) : error C2227: left of '->move' must point to class/struct/union/generic type
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(20) : error C2065: 'refpoint' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(27) : error C2653: 'GeoGroup' : is not a class or namespace name
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(32) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(32) : error C2228: left of '.begin' must have class/struct/union
5> type is ''unknown-type''
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(32) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(32) : error C2228: left of '.end' must have class/struct/union
5> type is ''unknown-type''
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(33) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(33) : error C2228: left of '.end' must have class/struct/union
5> type is ''unknown-type''
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(35) : error C2065: 'elems' : undeclared identifier
5>c:\users\rob\school work\information technology\computer programming with c++\projects\inherit_1\inherit_5\geogroup.cpp(35) : error C2228: left of '.erase' must have class/struct/union
5> type is ''unknown-type''
here is an example of what I am trying to get complied:
the header file
#ifndef GEOGROUP_HPP
#define GEOGROUP_HPP
#include "geo.hpp"
#include <vector>
namespace Geo
{
Class GeoGroup : public GeoObj
{
protected:
std::vector<GeoObj*> elems;
public:
GeoGroup(const Coord& p = Coord(0,0)) : GeoObj(p)
{
}
virtual void draw() const;
virtual void add(GeoObj&);
virtual bool remove(GeoObj&);
virtual ~GeoGroup()
{
}
};
}
#endif //GEOGROUP_HPP
and the dotC file:
#include "geogroup.hpp"
#include <algorithm>
namespace Geo
{
void GeoGroup::draw() const
{
for (unsigned i = 0 ; i < elems.size(); ++i)
{
elems[i]->move(refpoint);
elems[i]->draw();
elems[i]->move(-refpoint);
}
}
bool GeoGroup::remove(GeoObj& obj)
{
std::vector<GeoObj*>::iterator pos;
pos = std::find(elems.begin(), elems.end(), &obj);
if (pos != elems.end())
{
elems.erase(pos);
return true;
}
else
{
return false;
}
}
}
This seems to me to be a linking problem, and also I realized that I might have something to do with having multiple .hpp and multiple .cpp implementation files.
Anyone have an idea on what I am doing wrong?
Thanks,
RobNO.
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