Is it possible to change the size of the treeview window after it has been visualized?
My code looks like this:
_p2DNavViewer = NULL;
_p2DNavViewer = new CATNavigation2DViewer(this, "", CATDlgFraNoTitle | CATDlgWndNoDecoration |CATDlgWndChildMDI |CATDlgFraNoFrame, _width, _height);
_pNavigBox = new CATNavigBox(this, "", NULL, Indented, "CATINavigateObject_ForCAA2", 0, 0, _p2DNavViewer);
this is the surrounding CATDlgContainer.
I can't find anything that would indicate that it's possible, but CATIA is doing it so there has to be a way.
I'm using CAAV5 R16.
I'm catching a Resizecallback from the CATDlgContainer
AddAnalyseNotificationCB(this,this->GetResizeNotification(),
(CATCommandMethod)&PROTrvTreeView::OnContainerResizeNotification,
NULL);
The catching method looks like this:
void PROTrvTreeView::OnContainerResizeNotification(CATCommand* cmd,
CATNotification* evt, CATCommandClientData data) {
DRECT * pRect = new DRECT();
GetRectDimensions(pRect);
if (pRect != NULL) {
_p2DNavViewer->SetRectDimensions(pRect->x,pRect->y, pRect->dy, pRect->dx);
}
delete pRect;
pRect = NULL;
}
So it was _p2DNavViewer->SetRectDimensions all along.
Related
when playing trying to play audio in a chat application that I'm making I got the exception {"Source sample provider must be mono"} in this line var panProvider = new PanningSampleProvider(volumeProvider);
Code:
private void ReceiveUdpMessage(IAsyncResult ar)
{
try
{
byte[] bytesRead = UDPc.EndReceive(ar, ref ep);
var waveProvider = new BufferedWaveProvider(new WaveFormat(44100, 16, 2));
waveProvider.DiscardOnBufferOverflow = true;
waveProvider.AddSamples(bytesRead, 0, bytesRead.Length);
var volumeProvider = new VolumeSampleProvider(waveProvider.ToSampleProvider());
var panProvider = new PanningSampleProvider(volumeProvider);
mixer.AddMixerInput(panProvider);
UDPc.BeginReceive(new AsyncCallback(ReceiveUdpMessage), null);
}
catch(Exception ex)
{
}
UDPc.BeginReceive(new AsyncCallback(ReceiveUdpMessage), null);
}
I saw this answer Implementing Output audio panning with Naudio
but when mark answered in the comments:"I'd make a very simple alternative to VolumeSampleProvider that had a left and right volume property in that case".
he didn't elaborate and I'm new to this so have no idea what to do from here.
Does someone know what I'm supposed to do?
Thx
I've been trying to modify outgoing DNS packets via the DATAGRAM_DATA layer in WFP, however i get blue screen errors when rewriting the destination ip in the outgoing packet. What am i doing wrong?
I admit i found the parameters for FwpsInjectTransportSendAsync a bit confusing, and was unsure exactly what to put in for the sendParams arg - though i think what i have looks right.
RtlIpv4StringToAddressExW(
L"1.1.1.1", // hard-coding the new (rewritten) dns server for now
FALSE,
&sin4.sin_addr,
&sin4.sin_port);
RtlIpv4StringToAddressExW(
L"8.8.8.8", // hard-coding the original dns server for now
FALSE,
&origSin4.sin_addr,
&origSin4.sin_port);
if ((Direction == FWP_DIRECTION_OUTBOUND) && (PacketInjectionState == FWPS_PACKET_NOT_INJECTED) && (RemotePort == 53) && (RemoteAddress == origSin4.sin_addr.S_un.S_addr))
{
UINT32 IpHeaderSize = inMetaValues->ipHeaderSize;
UINT32 TransportHeaderSize = inMetaValues->transportHeaderSize;
UINT64 endpointHandle = inMetaValues->transportEndpointHandle;
PNET_BUFFER NetBuffer = NET_BUFFER_LIST_FIRST_NB((PNET_BUFFER_LIST)layerData);
NdisRetreatNetBufferDataStart(NetBuffer, IpHeaderSize + TransportHeaderSize, 0, NULL);
PNET_BUFFER_LIST NetBufferList = NULL;
NTSTATUS Status = FwpsAllocateCloneNetBufferList(layerData, NULL, NULL, 0, &NetBufferList);
if (!NT_SUCCESS(Status))
{
return;
}
NdisAdvanceNetBufferDataStart(NetBuffer, IpHeaderSize + TransportHeaderSize, FALSE, NULL);
if (!NetBufferList)
{
return;
}
NetBuffer = NET_BUFFER_LIST_FIRST_NB(NetBufferList);
PIPV4_HEADER IpHeader = NdisGetDataBuffer(NetBuffer, sizeof(IPV4_HEADER), NULL, 1, 0);
// Rewriting the dest ip
IpHeader->DestinationAddress = sin4.sin_addr.S_un.S_addr;
// Updating the IP checksum
UpdateIpv4HeaderChecksum(IpHeader, sizeof(IPV4_HEADER));
// not 100% sure the sendParams argument is setup correctly, the docs are slightly unclear
FWPS_TRANSPORT_SEND_PARAMS sendParams = {
.remoteAddress = (UCHAR*)IpHeader->DestinationAddress,
.remoteScopeId = inMetaValues->remoteScopeId,
.controlData = inMetaValues->controlData,
.controlDataLength = inMetaValues->controlDataLength,
.headerIncludeHeader = inMetaValues->headerIncludeHeader,
.headerIncludeHeaderLength = inMetaValues->headerIncludeHeaderLength
};
Status = FwpsInjectTransportSendAsync(g_InjectionHandle, NULL, endpointHandle, 0, &sendParams, AF_INET, inMetaValues->compartmentId, NetBufferList, DriverDatagramDataInjectComplete, NULL);
if (!NT_SUCCESS(Status))
{
FwpsFreeCloneNetBufferList(NetBufferList, 0);
}
classifyOut->actionType = FWP_ACTION_BLOCK;
classifyOut->rights &= ~FWPS_RIGHT_ACTION_WRITE;
classifyOut->flags |= FWPS_CLASSIFY_OUT_FLAG_ABSORB;
}
Two things stand out to me, both in the sendParams.
First, remoteAddress is incorrect. It needs to a pointer to the address, so it should be (UCHAR*)&IpHeader->DestinationAddress.
Second, FwpsInjectTransportSendAsync() is asynchronous so any parameters you pass to it need to stay valid until it completes which may be after your calling function returns. Typically you allocate some context structure that contains sendParams and deep copies of relevant members (remoteAddress and controlData). You pass this as the context to the completion routine where you free it.
This is the event handlers i implemented to the copy, paste and Cut buttons in my MFCRibbonBar:
in the MyRibbonView.cpp:
void CMyRibbonView::OnEditCopy()
{
CWnd *wnd = GetFocus();
if (wnd == pEdit)
pEdit->Copy();
if (!OpenClipboard())
{
AfxMessageBox(_T("Cannot open the Clipboard"));
return;
}
if (!EmptyClipboard())
{
AfxMessageBox(_T("Cannot empty the Clipboard"));
return;
}
HGLOBAL hGlob = GlobalAlloc(GMEM_FIXED, 64);
strcpy_s((char*)hGlob, 64, "Current selection\r\n");
if (::SetClipboardData(CF_TEXT, hGlob) == NULL)
{
CString msg;
msg.Format(_T("Unable to set Clipboard data, error: %d"), GetLastError());
AfxMessageBox(msg);
CloseClipboard();
GlobalFree(hGlob);
return;
}
CloseClipboard();
}
void CMyRibbonView::OnEditPaste()
{
if (OpenClipboard())
{
HANDLE hClipboardData = GetClipboardData(CF_TEXT);
char *pchData = (char*)GlobalLock(hClipboardData);
CString strFromClipboard;
strFromClipboard = pchData;
pEdit->SetWindowText(strFromClipboard);
GlobalUnlock(hClipboardData);
CloseClipboard();
}
}
void CMyRibbonView::OnEditCut()
{
OnEditCopy();
pEdit->SetWindowText(L" ");
}
There is no errors, it's just not working. I tested it by adding the messages to check if it's actually the data or not but they're not popping up.
You need to GlobalLock your hGlob memory before copying your character string into it (this operation converts it into a usable pointer for your process - see here), and then call GlobalUnlock after you've done that (so that the clipboard can access hGlob):
HGLOBAL hGlob = GlobalAlloc(GMEM_FIXED, 64); // Maybe also need GMEM_MOVEABLE here instead?
char* cCopy = (char*)GlobalLock(hGlob);
strcpy_s(cGlob, 64, "Current selection\r\n");
GlobalUnlock(hGlob);
if (::SetClipboardData(CF_TEXT, hGlob) == NULL)
{
//...
And you'll need a similar arrangement for the paste operation.
I am developing a visual c++ applicatio(x64). what actually i am trying to do is that suppose we have a html file in window explorer(i mean file with file extension ".html"). when we single click on it we get its preview on preview pane(so we don't need to open this file we can see the file in preview pane on a single click to a file).
I have developed a similar type of application but in my case when i click on the "html file" i just get the code of that html file in preview pane(the code which you can see if you open that html file in notepad). which is not expected to happen but I want to have the preview of that "html file" not the code of that html file.
I think i need to host some browser control which will transform my html code in preview pane to the display of html file(If i am correct ???) How to do that ??
Here is my code for that-
IHTMLDocument2 * pDoc=NULL;
HRESULT hr2 = CoCreateInstance(CLSID_HTMLDocument, NULL, CLSCTX_INPROC_SERVER, IID_IHTMLDocument2, (LPVOID *) &pDoc);
if (pDoc)
{
IPersistStreamInit *pPersist = NULL;
pDoc->QueryInterface(IID_IPersistStreamInit,(LPVOID *) &pPersist);
if (pPersist)
{
IMarkupServices *pMS = NULL;
pPersist->InitNew();
pPersist->Release();
pDoc->QueryInterface(IID_IMarkupServices,(LPVOID *) &pMS);
if (pMS)
{
IMarkupContainer *pMC = NULL;
IMarkupPointer *pMkStart = NULL;
IMarkupPointer *pMkFinish = NULL;
pMS->CreateMarkupPointer(&pMkStart);
pMS->CreateMarkupPointer(&pMkFinish);
pMS->ParseString(HtmlFileContents,0,&pMC,pMkStart,pMkFinish);
//this HtmlFileContents is actually a buffer of olechar type which contains the code of html file (the code which you see when you open the html file in notepad)
if (pMC)
{
IHTMLDocument2 *pNewDoc = NULL;
pMC->QueryInterface(IID_IHTMLDocument,(LPVOID *) &pNewDoc);
if (pNewDoc)
{
IHTMLElement *pBody;
pNewDoc->get_body(&pBody);
if (pBody)
{
BSTR strText;
pBody->get_innerText(&strText);
hr = instance->CreatePreviewWindowForHtml(strText); // this function is responsible for displaying the html file in window. you can see its definition below after this code.
SysFreeString(strText);
pBody->Release();
}
pNewDoc->Release();
}
pMC->Release();
}
if (pMkStart)
pMkStart->Release();
if (pMkFinish)
pMkFinish->Release();
pMS->Release();
pMS->Release();
}
}
pDoc->Release();
}
return true;
and the function defintion of CreatePreviewWindowForHtml() is as below-
CreatePreviewWindowForHtml(PCWSTR pszRtfWide)
{
assert(m_hwndPreview3 == NULL);
HRESULT hr = E_FAIL;
if (m_hwndPreview3 == NULL)
{
HRESULT hr5 = HRESULT_FROM_WIN32(GetLastError());
}
if (m_hinstEditLibrary == NULL)
{
// MSFTEDIT_CLASS used below comes from this binary
m_hinstEditLibrary = LoadLibraryW(L"msftedit.dll");
}
if (m_hinstEditLibrary == NULL)
{
hr = HRESULT_FROM_WIN32(GetLastError());
}
else
{
// Create the preview window
HWND pr = m_hwndPreview3 = CreateWindowExW(0, MSFTEDIT_CLASS, NULL,
WS_CHILD | WS_VSCROLL | WS_VISIBLE | ES_MULTILINE | ES_READONLY, // Always create read-only
m_rcParent.left, m_rcParent.top, RECTWIDTH(m_rcParent), RECTHEIGHT(m_rcParent),
m_hwndPreview, NULL, NULL,NULL);
if (m_hwndPreview3 == NULL)
{
MessageBoxA(m_hwndPreview3,strerror(hr),"BTN WND2", MB_ICONINFORMATION);
}
else
{
int const cchRtf = 1 + wcslen(pszRtfWide);
PSTR pszRtf = (PSTR)CoTaskMemAlloc(cchRtf);
if (pszRtf)
{
WideCharToMultiByte(CP_ACP, 0, pszRtfWide, cchRtf, pszRtf, cchRtf, NULL, NULL);
SETTEXTEX st = { ST_DEFAULT, CP_ACP };
LRESULT hr4=SendMessage(m_hwndPreview3, EM_SETTEXTEX, (WPARAM) &st, (LPARAM) pszRtfWide);
if (SUCCEEDED(hr4))
{
hr = AdjustDialogPositionAndSize();
SendMessage(m_hwndPreview3, EM_SETTEXTEX, (WPARAM) &st, (LPARAM) pszRtfWide);
}
CoTaskMemFree(pszRtf);
hr = S_OK;
}
else
{
hr = E_OUTOFMEMORY;
}
}
}
return hr;
}
Any ideas why i have the html code in my window ?? What to do in the code in order to get the preview of html file in my window rather then html code ??
Please tell me if any doubts in understanding me ??
You have the html code in your window because you choose a richedit as the text renderer and your text did not start with "{\rtf".
If you want html display, you need an html renderer instead of a rich edit, something like MFC's CHtmlEditCtrl. If you don't want to use MFC you can write an ActiveX container to host the webbrowser control directly.
I'm new to Windows Forms, in my project, i need to change the image in the picture box at runtime. I'm able to do that with the help of a timer. The picture just gets changed. Is it possible to do some transitions when image changes, for example fade in, fade out, blur etc.. If possible could some one please let me know how to do it. I searched in net but in vain.Thanks in advance.
Varun
Simply take new code file and paste below code in it
an original answer for the similar question, answer taken from another question
Answer
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
public class BlendPanel : Panel
{
private Image mImg1;
private Image mImg2;
private float mBlend;
public BlendPanel()
{
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint | ControlStyles.OptimizedDoubleBuffer, true);
}
public Image Image1
{
get { return mImg1; }
set { mImg1 = value; Invalidate(); }
}
public Image Image2
{
get { return mImg2; }
set { mImg2 = value; Invalidate(); }
}
public float Blend
{
get { return mBlend; }
set { mBlend = value; Invalidate(); }
}
protected override void OnPaint(PaintEventArgs e)
{
if (mImg1 == null || mImg2 == null)
e.Graphics.FillRectangle(new SolidBrush(this.BackColor), new Rectangle(0, 0, this.Width, this.Height));
else
{
Rectangle rc = new Rectangle(0, 0, this.Width, this.Height);
ColorMatrix cm = new ColorMatrix();
ImageAttributes ia = new ImageAttributes();
cm.Matrix33 = mBlend;
ia.SetColorMatrix(cm);
e.Graphics.DrawImage(mImg2, rc, 0, 0, mImg2.Width, mImg2.Height, GraphicsUnit.Pixel, ia);
cm.Matrix33 = 1F - mBlend;
ia.SetColorMatrix(cm);
e.Graphics.DrawImage(mImg1, rc, 0, 0, mImg1.Width, mImg1.Height, GraphicsUnit.Pixel, ia);
}
base.OnPaint(e);
}
}
Build your project. You can now drop a BlendPanel from the top of the toolbox onto your form. Here's a sample program that uses it:
private float mBlend;
private int mDir = 1;
public int count = 0;
public Bitmap[] pictures;
public void myPhoto()
{
pictures = new Bitmap[9];
pictures[0] = new Bitmap(#"Library Images\cf3.jpg");
pictures[1] = new Bitmap(#"Library Images\cf4.jpg");
pictures[2] = new Bitmap(#"Library Images\l1.JPG");
pictures[3] = new Bitmap(#"Library Images\l2.JPG");
pictures[4] = new Bitmap(#"Library Images\l3.JPG");
pictures[5] = new Bitmap(#"Library Images\l4.JPG");
pictures[6] = new Bitmap(#"Library Images\l5.JPG");
pictures[7] = new Bitmap(#"Library Images\l6.JPG");
pictures[8] = new Bitmap(#"Library Images\l7.JPG");
timer1.Interval = 50; //time of transition
timer1.Tick += BlendTick;
try
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[++count];
}
catch
{
}
timer1.Enabled = true;
}
private void BlendTick(object sender, EventArgs e)
{
mBlend += mDir * 0.02F;
if (mBlend > 1)
{
mBlend = 0.0F;
if ((count + 1) < pictures.Length)
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[++count];
}
else
{
blendPanel1.Image1 = pictures[count];
blendPanel1.Image2 = pictures[0];
count = 0;
}
}
blendPanel1.Blend = mBlend;
}
You'll need to modify the new Bitmap(#"yourimagePath"); calls. Build and run. You should see the displayed image smoothly morph from your first image to your second image without any flickering.
I hope it helps for other...
There is no built-in support for such effects, but you can implement them. I'd suggest to write a custom control that renders the image and have a method for fade-swap, fade itself can be reached with alpha-blending drawing with .NET Graphics class.
However, Graphics class isn't very fast, I don't recommend to use this technique for big images. If you need some fancy UI with hw-accelerated effects, take a look at WPF.
Blend effects are easy to get going by using the ColorMatrix class. There's a good example available in my answer in this thread.
A simple way to get a blur is to resize the image, making it smaller, then redraw it back, making it larger. The Graphics.InterpolationMode property affects the type of blur you'll get.
Those are quicky do-it-yourself solutions. Any decent graphics library has these kind of operations built-in. You probably want something free, check out ImageMagick.NET
To put it simply, not without external (3rd-party) libraries.