thanks

Is there a function for retreiving a random integer lying in the range from one integer to another? I'm using Win32... THanks in advance.

I'm trying to display a bitmap on my window. Here's my code:

BITMAPINFO biBitmap = {0};
BITMAPINFOHEADER bihBitmap = {0};

bihBitmap.biSize = sizeof(BITMAPINFOHEADER);
bihBitmap.biWidth = 16;
bihBitmap.biHeight = 16;
bihBitmap.biPlanes = 1;
bihBitmap.biBitCount = 24;
bihBitmap.biCompression = BI_RGB;
bihBitmap.biSizeImage = 0;
bihBitmap.biClrUsed = 0;
bihBitmap.biClrImportant = 0;

biBitmap.bmiHeader = bihBitmap;

PAINTSTRUCT ps;
HDC hdc = BeginPaint(ghWnd, &ps);
HDC hdcMem = CreateCompatibleDC(NULL);

HBITMAP hbm = CreateDIBitmap(hdcMem, &bihBitmap, CBM_INIT, finalrgb, &biBitmap, NULL);
HBITMAP hbmT = (HBITMAP)SelectObject(hdcMem, (HBITMAP)hbm);

BitBlt(hdc,60,60,16,16,hdcMem,0,0,SRCCOPY);

SelectBitmap(hdcMem,hbmT);
DeleteDC(hdcMem);

EndPaint(ghWnd,&ps);

finalrgb is a pointer to an array of unsigned chars containing RGB values for a 16 by 16 pixels picture. What am i doing wrong? Thankyou!

Hey all. Just wanted to ask if it is possible to make Visual Studio break whenever a given variable gets a specific value? Thanks in advance. -Rune Svendsen

It's an MPEG2 file, but i'm decoding the file myself.

I'm currently developing a program for displaying movie contents on a screen. This means that i could have to change the contents of the graphics up to 60 times per second. Which functions are best suited for this? Thanks in advance. -Rune SVendsen

To resume a download you need to use the REST command: REST The REST command will make the server start at a give byte offsett and not at the start of the file. When you send that command the server will reply with either a negative response, or the code 350, which means it will start at the byte offsett you've specified. NOTE: The REST command must be followed by a service command (RETR or STOR). -Rune SVendsen

I'm making a program where i need the hWnd of the control that is currently under the cursor, but i'm in doubt of which API's i should use. I've tried checking around but i can't seem to find the answer. Thanks in advance

I'm trying to open a drive, by specifying the lpFileName argument to be of the format "\\.\:" in CreateFile. But when i use ReadFile to read from the disk, i get an error, number 87 which means invalid parameter, anyone know what's wrong?

char test\[32\];
HANDLE hDrive = CreateFile("\\\\\\\\.\\\\H:", GENERIC\_READ, FILE\_SHARE\_WRITE /\* | FILE\_SHARE\_READ\*/ , NULL, OPEN\_EXISTING, FILE\_ATTRIBUTE\_NORMAL, NULL);
DWORD dwBytesRead;

ReadFile(hDrive, &test, 32, &dwBytesRead, NULL);

CloseHandle(hDrive);

Thanks all! -Rune SVendsen

I used this: cliky here

So you want a program you can use as a phone that can dial up a normal phone, so you can talk with them for free?

You mean your program has to dial up to itself via a phone line or what?

I have an edit control working as a log, but when new text gets added to the control that makes the scrollbar active, it scrolls to the top so you can't see what has happened. Is it possible to set it to scroll to the bottom automatically, or is there a message you can send so it does it? I'm programming Win32 BTW. Thanks all.

then i get an exe - machine code. not assembly code...

thanks :)

If i for example have this string: "192,168,135,97,51,156" is it possible to split that into 6 integers containing the values delimited by the comma? thanks all :)

When i try to use the RenderFile function on an IGraphBuilder i get a ton of errors. I've also tried downloading a sample file that is guaranteed to work, but i still get the errors. Here's the code from the sample:

#include <windows.h>
#include <objbase.h>
#include <dShow.h>

int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
HRESULT hr;
IGraphBuilder* pGraphBuilder;
IMediaControl* pMediaControl;
WCHAR MediaFile[MAX_PATH];

CoInitialize(NULL);

hr = CoCreateInstance(CLSID\_FilterGraph, NULL, CLSCTX\_ALL, IID\_IGraphBuilder, (void\*\*)&pGraphBuilder);
if (FAILED(hr))
	return -1;

MultiByteToWideChar(CP\_ACP, 0, lpCmdLine, -1, MediaFile, MAX\_PATH);
hr = pGraphBuilder->RenderFile(MediaFile, NULL);
if (FAILED(hr))
	return -2;

hr = pGraphBuilder->QueryInterface(IID\_IMediaControl, (void\*\*)&pMediaControl);
if (FAILED(hr))
	return -3;

hr = pMediaControl->Run();
if (FAILED(hr))
	return -4;

Sleep(10000);

pMediaControl->Stop();
pMediaControl->Release();
pGraphBuilder->Release();

CoUninitialize();

return 0;

}

I set up VS .NET so the commandline contains a valid media file. When it performs the RenderFile function it loads in a sec or so and comes with a bunch of erros like these:

ASSERT failed.
g_cFGObjects == 0
At line 6002 d:\xpclient\multimedia\dshow\filters\core\filgraph\filgraph\filgraph.cpp
Continue? (Cancel to debug)

ASSERT failed.
Executable: DShowTut1.exe Pid 720 Tid 2cc. Module quartz.dll, 26 objects left active!
At line 317 of d:\xpclient\multimedia\published\dxmdev\dshowdev\base\dllentry.cpp
Continue? (Cancel to debug)

sometimes it also pops up with additional erros like:

m_dwRecursionCount == 0 && m_dwOwnerThreadId == 0
At line 58 of d:\xpclient\multimedia\dshow\filters\core\filgraph\filgraph\msgmutex.cpp
Continue? (Cancel to Debug)

And then exits. Anyone know what could be wrong? Thanks all! -Rune Svendsen

Thankyou. Do you know how i add a filter to IFilterGraph if i only know the name of the filter? -Rune Svendsen

Take a look at the WM_SYSCOMMAND message. If the wParam parameter is SC_MINIMIZE, then the window is about to be minimized.

I've tried the code on MSDN but that doesen't give me any filters. I was told it may be because i hadn't performed a RenderFile action on the IGraphBuilder. But isn't there another way of just enumerating all the available filters on the system? Here's my code, when it comes to the pEnum->Next procedure for the first time, it returns S_FALSE which means that the number of filters requested couldn't be found.

IGraphBuilder *pGraph = NULL;
IEnumFilters *pEnum = NULL;
IBaseFilter *pFilter = NULL;
ULONG cFetched;

CoInitialize(NULL);
CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder,(void**)&pGraph);
pGraph->EnumFilters(&pEnum);

while((err = pEnum->Next(1, &pFilter, &cFetched)) == S_OK)
{
FILTER_INFO fiFilterInfo;
char szFilterName[256];

pFilter->QueryFilterInfo(&fiFilterInfo);
WideCharToMultiByte(CP\_ACP, 0, fiFilterInfo.achName, -1, szFilterName, 256, 0, 0);
SendMessage(GetDlgItem(ghWnd, IDC\_FILTERS), LB\_INSERTSTRING, -1, (LPARAM)szFilterName);

fiFilterInfo.pGraph->Release();
pFilter->Release();

}

pEnum->Release();
pGraph->Release();
CoUninitialize();

So i'm asking if there's a way to enumerate all the available filters on the system. All help appreciated :) -Rune Svendsen