I'm trying to create a DirectX device in full screen (up until this point in time I've been doign windowed), but the device won't get created and I get an invalid call HR fail.
This is my code:
md3dPP.BackBufferWidth = 1280;
md3dPP.BackBufferHeight = 720;
md3dPP.BackBufferFormat = D3DFMT_UNKNOWN;
md3dPP.BackBufferCount = 1;
md3dPP.MultiSampleType = D3DMULTISAMPLE_NONE;
md3dPP.MultiSampleQuality = 0;
md3dPP.SwapEffect = D3DSWAPEFFECT_DISCARD;
md3dPP.hDeviceWindow = mhMainWnd;
md3dPP.Windowed = false;
md3dPP.EnableAutoDepthStencil = true;
md3dPP.AutoDepthStencilFormat = D3DFMT_D24S8;
md3dPP.Flags = 0;
md3dPP.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
md3dPP.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
HR(md3dObject->CreateDevice(
D3DADAPTER_DEFAULT, // primary adapter
mDevType, // device type
mhMainWnd, // window associated with device
devBehaviorFlags, // vertex processing
&md3dPP, // present parameters
&m_pd3dDevice)); // return created device
Notice 'md3dPP.Windowed = false;', if that's true the device creates in windowed mode.
I'm under the impression I've made a mistake in some of my default values but have no idea where to look. Is there a way to get a more detailed report as to why the device creation failed beyond D3DERR_INVALIDCALL?
You need to specify a different value for BackBufferFormat because only windowed apps allow the value D3DFMT_UNKNOWN. Pick one that is supported by your device (you can check by using CheckDeviceFormat()).
Related
I need to detect whether a Uiview is a standard opened view or if it is an activated viewport on a sheet. Querying the uiview’s view Id returns the Id of the activated viewport's view. I have found no direct way to detect that a uiview is actually a sheet with an activated viewport.
I am already tracking opened views in the view activated event for another purpose. So I considered storing the view Id with the uiview hashcode for later checking that it was indeed a sheetview prior to becoming an activated view. Unfortunately, and I think in opposition to standard use, the uiview hashcode is not stable. Multiple hashcode requests from the uiview object return different values.
Does anyone have a way to detect this condition? I need to be able to use the the methods on the uiview still. So any help to find the actual child windows I would like to relate to the uiview object. The view still says "Sheet: ..." in the title when a view is activated.
TaskDialog mainDialog = new TaskDialog("Hello, viewport check!");
mainDialog.MainInstruction = "Hello, viewport check!";
mainDialog.MainContent =
"Sadly Revit API doesn't automatically know if the user is in an active viewport. "
+ "Please click 'Yes' if your are, or 'No' if your not.";
mainDialog.AddCommandLink(TaskDialogCommandLinkId.CommandLink1,
"Yes, I am in an active viewport on a sheet.");
mainDialog.AddCommandLink(TaskDialogCommandLinkId.CommandLink2,
"No, I am just in an ordinary view.");
mainDialog.CommonButtons = TaskDialogCommonButtons.Close;
mainDialog.DefaultButton = TaskDialogResult.Close;
TaskDialogResult tResult = mainDialog.Show();
bool YesOrNo = true;
if (TaskDialogResult.CommandLink1 == tResult)
{
YesOrNo = true;
}
else if (TaskDialogResult.CommandLink2 == tResult)
{
YesOrNo = false;
}
else{
return;
}
You can use the ViewSheet GetAllViewports method to determine all the viewports on a given sheet. Using that, you could put together a bi-directional dictionary lookup system map any sheet to all the viewports it hosts and vice versa. That should help solve your task. Here is some example usage:
http://thebuildingcoder.typepad.com/blog/2014/04/determining-the-size-and-location-of-viewports-on-a-sheet.html
Im late to the party - but another way to sense if the user is in a viewport is to investigate the Process.MainWindow title. Something like this (in RevitPythonShell):
import threading, clr
from System.Diagnostics import Process
# need winform libraries for feedback form only
clr.AddReference("System.Windows.Forms")
from System.Windows.Forms import Form, Label
app = __revit__.Application
doc = __revit__.ActiveUIDocument.Document
ui = __revit__.ActiveUIDocument
def lookAtWindow(activeView):
# Looking for one of three conditions:
# 1. User is on a sheet (ActiveView will be DrawingSheet)
# 2. User is in an active ViewPort on a sheet (ActiveView will NOT be be DrawingSheet, but MainWindowTitle will contain " - [Sheet: " string)
# 3. User is on a View (neither of the previous two conditions)
result = False
if str(activeView.ViewType) == 'DrawingSheet':
result = 'Youre on a sheet'
else:
processes = list(Process.GetProcesses())
for process in processes:
window = process.MainWindowTitle
if window and 'Autodesk Revit '+app.VersionName[-4:] in window and ' - [Sheet: ' in window and ' - '+doc.Title+']' in window:
result = 'I reckon youre in a Viewport'
if not result:
result = 'so you must be in a '+str(activeView.ViewType)
form = Form()
form.Width = 300
form.Height = 100
label = Label()
label.Width = 280
label.Height = 70
label.Text = result
label.Parent = form
form.ShowDialog()
# need to close RevitPythonShell console before checking MainWindowTitle, so run on timer
threading.Timer(1, lookAtWindow, [ui.ActiveView]).start()
__window__.Close()
I am having a tree control where initially I had set it style in OnInitDialog as follows,
BOOL OnInitDialog()
{
CPropertyPage::OnInitDialog();
//Setting Treecontrol with TVS_CHECKBOXES style
HWND m_hTreeWnd = ::GetDlgItem(m_hWnd,IDC_TREE);
DWORD dwStyle = GetWindowLong(m_hTreeWnd,GWL_STYLE);
dwStyle |= (TVS_CHECKBOXES);
SetWindowLongPtr(m_hTreeWnd,GWL_STYLE,dwStyle);//CTreeCtrl m_hTreeWnd;
//Now I had initialized the tree control and I am want only few items of the tree to have
//checkboxes,In order to achieve that I did it as follows(Removing checkboxes where not required)
tvInsertItem.hParent = NULL;
tvInsertItem.hInsertAfter = TVI_ROOT;
tvInsertItem.item.mask = TVIF_TEXT|TVIF_IMAGE|TVIF_SELECTEDIMAGE;
tvInsertItem.item.pszText = L"Name"
hParentItemHandle = m_TreeCtrl.InsertItem(&tvInsertItem);
//Removal of checkboxes for the above item
tvItem.hItem = hParentItemHandle;
tvItem.mask = TVIF_TEXT|TVIF_STATE|TVIF_SELECTEDIMAGE;
tvItem.stateMask = TVIS_STATEIMAGEMASK;
tvItem.state = 0;
tvItem.pszText = szCommonModel;
m_TreeCtrl.SetItem(&tvItem);
}
Everything is fine I removed checkbox in which ever the node it is not required.And having checkbox where they are required.
All of a sudden I noticed this issue i.e, after selecting an item in the tree control which does not have checkbox ,now if
I press "space bar"then a checkbox is getting append to that item.
I want avoid the checkbox when I press space bar.
To avoid checkbox I tried this but did not work.
BOOL CTreeControlDlg::OnTvnItemChangingTree(UINT i,NMHDR *pNMHDR, LRESULT *pResult)
{
NMTVITEMCHANGE *pNMTVItemChange = reinterpret_cast<NMTVITEMCHANGE *>(pNMHDR);
HTREEITEM hTree = pNMTVItemChange->hItem;
UINT ChangItem = pNMTVItemChange->uStateNew;
UINT ChangItem1 = pNMTVItemChange->uStateOld;
UINT ItemState = m_TreeCtrl.GetItemState(hTree, TVIS_STATEIMAGEMASK);
if(98 == ItemState)//98 is the thing I observed while debugging this is not correct I know.
return FALSE;
return TRUE;
}
I am bit confused how do we get the state image mask TVIS_STATEIMGAEMASK and how do we make that check whether the item has this mask or not .
Can anyone please suggest me a way to acheive this.
I had to change to directshow for my eyetracking software due to the difficulties to change resolution of the camera when using c++ and opencv.
Directshow is new to me and it is kind of hard to understand everything. But I found this nice example that works perfectly for capturing & viewing the web cam.
http://www.codeproject.com/Articles/12869/Real-time-video-image-processing-frame-grabber-usi
I am using the version that not requires directShow SDK. (But it is still directshow that is used in the example, right??)
#include <windows.h>
#include <dshow.h>
#pragma comment(lib,"Strmiids.lib")
#define DsHook(a,b,c) if (!c##_) { INT_PTR* p=b+*(INT_PTR**)a; VirtualProtect(&c##_,4,PAGE_EXECUTE_READWRITE,&no);\
*(INT_PTR*)&c##_=*p; VirtualProtect(p, 4,PAGE_EXECUTE_READWRITE,&no); *p=(INT_PTR)c; }
// Here you get image video data in buf / len. Process it before calling Receive_ because renderer dealocates it.
HRESULT ( __stdcall * Receive_ ) ( void* inst, IMediaSample *smp ) ;
HRESULT __stdcall Receive ( void* inst, IMediaSample *smp ) {
BYTE* buf; smp->GetPointer(&buf); DWORD len = smp->GetActualDataLength();
HRESULT ret = Receive_ ( inst, smp );
return ret;
}
int WINAPI WinMain(HINSTANCE inst,HINSTANCE prev,LPSTR cmd,int show){
HRESULT hr = CoInitialize(0); MSG msg={0}; DWORD no;
IGraphBuilder* graph= 0; hr = CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,IID_IGraphBuilder, (void **)&graph );
IMediaControl* ctrl = 0; hr = graph->QueryInterface( IID_IMediaControl, (void **)&ctrl );
ICreateDevEnum* devs = 0; hr = CoCreateInstance (CLSID_SystemDeviceEnum, 0, CLSCTX_INPROC, IID_ICreateDevEnum, (void **) &devs);
IEnumMoniker* cams = 0; hr = devs?devs->CreateClassEnumerator (CLSID_VideoInputDeviceCategory, &cams, 0):0;
IMoniker* mon = 0; hr = cams->Next (1,&mon,0); // get first found capture device (webcam?)
IBaseFilter* cam = 0; hr = mon->BindToObject(0,0,IID_IBaseFilter, (void**)&cam);
hr = graph->AddFilter(cam, L"Capture Source"); // add web cam to graph as source
IEnumPins* pins = 0; hr = cam?cam->EnumPins(&pins):0; // we need output pin to autogenerate rest of the graph
IPin* pin = 0; hr = pins?pins->Next(1,&pin, 0):0; // via graph->Render
hr = graph->Render(pin); // graph builder now builds whole filter chain including MJPG decompression on some webcams
IEnumFilters* fil = 0; hr = graph->EnumFilters(&fil); // from all newly added filters
IBaseFilter* rnd = 0; hr = fil->Next(1,&rnd,0); // we find last one (renderer)
hr = rnd->EnumPins(&pins); // because data we are intersted in are pumped to renderers input pin
hr = pins->Next(1,&pin, 0); // via Receive member of IMemInputPin interface
IMemInputPin* mem = 0; hr = pin->QueryInterface(IID_IMemInputPin,(void**)&mem);
DsHook(mem,6,Receive); // so we redirect it to our own proc to grab image data
hr = ctrl->Run();
while ( GetMessage( &msg, 0, 0, 0 ) ) {
TranslateMessage( &msg );
DispatchMessage( &msg );
}
};
The method HRESULT Receive is called for every new frame from the cam. the the comments says that buf contains the data. But I have 3 problems/questions.
I cant include the opencv lib. I create a new project in visual studio, and add the same property sheets as I always include. the only difference from earlier projects is that I Now create a totaly empty project, earlier I created a win32 application.
How to add opencv into the directshow project?
The example above. from buf. which is a pointer to the data. How do I get that into iplImage/Mat for the opencv calc?
Is there a way to not show the images from the webcam (I only need to perform some algorithms on the frames, I guess removing the window with the results might give me more power for the analyse algorithms?!)
Thanks!
With DirectShow you typically create a pipeline, that is a graph and you add filters to it, like this:
Camera -> [possibly some extra stuff] -> Sample Grabber -> Null Renderer
Camera, Sample Grabber, Null Renderer are all standard components shipped with clean Windows. Sample Grabber can be set to call you back via ISampleGrabberCB::SampleCB and give you data for every video frame captured. Null Renderer is the termination of pipeline without displaying video on monitor (just video capture).
SampleCB is the keyword to bring you sample code you need. Having data received with this call, you can convert/wrap it into IPL/OpenCV class as suggested by #praks411.
Having it done as simple as this, you don't need DirectShow BaseClasses, and the code will be merely regular ATL/MFC code and project. Make sure to use CComPtr wrapper class to deal with COM interfaces to not lose references and leak objects. Some declarations might be missing in very latest Windows SDK, so you need to either use Windows SDK 6.x or just copy missing parts from there.
See also:
How to capture frames using Delphi/DSPack without displaying it on TVideoWindow? (Delphi code, but good description and figures)
DirectShow: Examples for Using SampleGrabber for Grabbing a Frame and Building a VU Meter
SetLifeCamStudioResolutionSample - A small DirectShow project showing how to set capture up, including resolution on camera, and Sample Grabber, and also missing SDK declarations; related Q is Can't make IAMStreamConfig.SetFormat() to work with LifeCam Studio
Building the Filter Graph on Sample Grabber and Null Renderer
I think you can include opencv in existing. I've done that for console application. You will need to include path to opencv headers and path to opencv lib in property page for you current project.
Go to project property:
1.To addheaders
C/C++ -----> Additional Include Directories ---> Here add opencv include directories (You may want to include multiples directories)
To add libs
Linker -----> Additional Library Directories ----> Here add opencv lib.
To create IplImage from buf. You can use following once you have the height and width of image.
IplImage *m_img_show;
CvSize cv_img_size = cvSize(m_mediaInfo.m_width, m_mediaInfo.m_height);
m_img_show = cvCreateImageHeader(cv_img_size, IPL_DEPTH_8U,3);
cvSetData(m_img_show, m_pBuffer, m_mediaInfo.m_width*3);
I think preview of image is quite helpful. It seems that your filter above take data from renderer. If you do want you may want to change your renderer and use it in windowless mode. Other option could be to use sample grabber filter.
Followed a few tutorials and I'm having no luck, I'm trying to add a simple .WAV sound effect into XNA using free samples, I have named the sound as:
SoundEffect hit1;
SoundEffect hit2;
And then loaded the content with:
hit1= content.load<SoundEffect>("hit1")
But when it comes to adding the play to a button press and I go to test it there's no sound at all even no errors or nothing the game loads and is playable but any sound effects are not working.
** // Sounds
SoundEffect hit1;
SoundEffect hit2;
This is my variable names:
// Sounds
hit1 = Content.Load<SoundEffect>("hit1");
hit2 = Content.Load<SoundEffect>("hit2");
This is how I'm loading them in the loadcontent method:
//If Keyboard Key W is Pressed or Buttong Y
if (keys1.IsKeyDown(Keys.W) && oldKeys1.IsKeyUp(Keys.W)
|| (oldpad1.Buttons.Y == ButtonState.Released) && (pad1.Buttons.Y == ButtonState.Pressed))
{
secondsPassed = 0;
// IF The Target Image is a Gnome
if (targets[0] == sprites[0])
{
//They whacked a gnome
GnomeHits = GnomeHits + 1;
runNum = 0;
secondsPassed = 0;
hit1.Play();
}
else
{
//They whacked a troll
scoreNum = scoreNum + 1;
runNum = runNum + 1;
GnomeHits = 0;
secondsPassed = 0;
hit2.Play();
}
SetUpSpriteLoop();
And this is one of the control buttons I'm trying to assign sound too
when I hit F5 and run the game when I hit the key or button no sound at all.
I had a similar problem with Monogame (built from XNA's ashes) on a Windows 10 machine. I fixed it by reinstalling DirectX, and everything just worked.
My first recommendation would be to make sure you are updating the keyboard presses. I only say that as I can't see you doing that in your code. If you do not do this then the key states will not update and therefore you will never enter the if statement.
Once you have ensured you are entering the if statement, I would play around with the volume of the sound effect to make sure it is actually audible. I may be a bit off base there however if I am I suggest following this tutorial rbwhitaker is a great resource for XNA.
I have an MDI MFC FEATURE PACK app in vs2008.
I do need to determine what child window(s) are visible , even if multiple tab groups are created by the user, and also what is the last activated MDI child. I have found that in my mainframe CMDIFrameWndEx class, the methods
m_wndClientArea.FindActiveTabWnd ();
m_wndClientArea.GetFirstTabWnd ();
m_wndClientArea.GetNextTabWnd ();
that could potentially let me navigate through all tab grops. Trouble is that these methods return an CMFCTabControl that does not offer any method/member to obtain an pointer to the MDI child windows in the tab. It only gives the index of the active tab.
So how do I get the CMDIChildWndEx* pointer of the "in front" window of the given tabgroup?
Because your CMDIChildWndEx instances are wrapped in a tab control wrapper you can get the active tab and then the wnd from that, e.g.
int nActive = pTabCtrl->GetActiveTab();
CWnd * pWnd = pTabCtrl->GetTabWndNoWrapper( nActive );
CMDIChildWndEx * pChild = dynamic_cast<CMDIChildWndEx*>(pWnd);
It was wonderful to find this code - exactly what I needed to redraw my active tab windows in each tab group since with multiple (split) tab groups, they were not being redrawn correctly. However, to make the loop work I had to do the following (CChildFrame is my derived frame type):
m_arrpActiveChilds.RemoveAll ();
const CObList& TabGroups =m_wndClientArea.GetMDITabGroups();
if (TabGroups.GetCount ()>0) {
POSITION crtPos = TabGroups.GetHeadPosition ();
CMFCTabCtrl* pCrtTabCtrl;
do {
pCrtTabCtrl=DYNAMIC_DOWNCAST(CMFCTabCtrl, TabGroups.GetNext(crtPos));
int nActive = pCrtTabCtrl->GetActiveTab();
CWnd * pWnd = pCrtTabCtrl->GetTabWndNoWrapper( nActive );
CChildFrame * pChild = dynamic_cast<CChildFrame*>(pWnd);
m_arrpActiveChilds.Add (pChild);
} while(crtPos != NULL);