Playing AVIs and DirectShow

DirectShow Development

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    - What is a SDK What is a SDK. How do you use one. For example I have Microsoft XML Parser SDK. What is it for Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Windows Cardspace I personally don't know of any other samples out there for you to play with. As for working with http (non-https), the current version of CardSpace does not support http. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - OpenProcessToken returns Access Denied Hi, I have a service running under a local user account (which is a member of the local Administrators group). This service has to launch an application for a currently logged on user (a different user). These are my steps: 1. Find a well known process id (explorer.exe) that is ran by a logged on user. 2. Adjust privileges to get SE_DEBUG_NAME enabled. 3. Use h = OpenProcess( PROCESS_ALL_ACCESS, .... ) to get a handle to the process. 4. Use OpenProcessToken(h, TOKEN_QUERY | TOKEN_IMPERSONATE | TOKEN_DUPLICATE, .... ) to get a user token. <--- this is the step that is always failing with access denied error. If I use Local System to run the service, it works perfect. Administrator - not. What privileges the administrator is missing to call OpenProcessToken for another process Thanks, Leonid Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Workflow 3.5 on Visual Studio 2005 I was wondering if it is possible to use the Silver Worlkflow /WCF integration in Visual Studio. I noticed a recent vidio where they were developing in 2005 . Does the .NET 3.5 download have any of the designer support in Visual Studio The main reason is i really want to use Software Factory v3.0 but a 2008 version is not scheduled till next year, and going from Software Factory v2 to 3.0 will not be easy with its model first apporach ( with no code to model support) . Regards, Ben Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - ICCompress MP42 KeyFrames Hi All, I'm compressing a range of bitmaps using the VCM and the ICCompress function that has been opened on the MP42 codec (Microsoft Mpeg4 V2). The compression of the bitmaps work just fine, but I am battling to set when the next keyframe should be delivered from the compression. DWORD dwInFlags = 0, dwOutFlags = 0; if (various check to set a key frame) dwInFlags = ICCOMPRESS_KEYFRAME; m_lFrameCount++; DWORD dwSuccess = ICCompress(m_hIC, dwInFlags, (LPBITMAPINFOHEADER)m_pVideoOut, m_pFrame, (LPBITMAPINFOHEADER)m_pVideoIn, pFrame, NULL, &dwOutFlags, m_lFrameCount, 0, 0, NULL, NULL); if (dwSuccess == ERROR_SUCCESS) { if (dwOutFlags & AVIIF_KEYFRAME) { m_lFrameCount = 1; TRACE("\nKEYFRAME %d", m_pVideoOut->bmiHeader.biSizeImage); } // etc, etc, etc Basically only the first frame is a keyframe, and there after every 100'th frame (which seems to be the default of the codec). Whenever I set it with dwInFlags = ICCOMPRESS_KEYFRAME it seems to have no effect on the codec as the returned frame is NOT a keyframe. Any ideas as to what may be wrong in my code, or is there another way to accomplish that Thanks ! Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Checking Document Format in workflow and deleting file in library if format fails. HELP :( Please ask questions specific to SharePoint's implementation of Window Workflow Foundation at http://www.microsoft.com/office/community/en-us/FlyoutOverview.mspx#15 . Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Automatically starting installer setup.exe in Compatibility Mode 'Windows XP SP2' I have a installer that works correctly when running in 'Windows XP SP2 mode' (right click setup.exe, click properties, in Compatibility tab select 'Windows XP SP2'; re: http://windowshelp.microsoft.com/Windows/en-US/Help/bf416877-c83f-4476-a3da-8ec98dcf5f101033.mspx), but will not work correctly otherwise. Is there a way for me to tell the Vista OS to start my setup.exe in that mode without the user's intervention, so that the user does not have to set that setting themselves I'm trying to avoid having the user do extra steps such as running the Application Compatibility Wizard, or manually changing the settings on the setup.exe file etc. Is it possible to create an installer that will startup my original installer in that mode (ie. a wrapper installer) TIA, Scott Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - windows vista and modem dialup issues Hi folks: I'm sorry you're having trouble getting your modem to work. However, this forum is for discussing programming issues with Windows Vista. I recommend that you work with your hardware manufacturer to get this porblem resolved. It sounds like they don't have a valid driver for the modem. Regards, - Mark Hopkins (MSFT) Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Loading a kernel mode driver Hallo, I've written a tiny driver (reading one of CPU's MSR register) that has to be loaded at app's runtime. So here is' me question: how can I call CreateService function to without running the app as an admin(the UAC window) I would like to craete and use the driver from DLL so does the UAC also controls loaded DLL's Geetings, W2K Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Super Slow Indexing Are you using iTunes iTunes stores temp files as XML and we will constantly index them. Try and disabling the .XML file extension from being indexed in the Indexing Options control panel. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - TransactionScope, State Machine, and Oracle DB Ok now I understand your scenario more but unfortunately the limitation that I told about still does applies. The reason that we decided not to support external transaction flowing into the workflow for v1 is that it would be very difficult to keep the in memory copy of the workflow insync with the persisted copy incase the transaction was rolled back externally, the workflow wont have any means to know about that and adjust itself. Given this, there is still a way to achieve what you want!! You can create a transition from 'approved/rejected' back to 'submitted' and when you detect that an exception has occured and the transaction has been rolled back, simply transition the workflow back to the submitted state. I hope that helps. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Special treatment of ActiveX controls in Vista high DPI mode? I have nowe confirmed that the Raymond manifest "hack" actually works. It feels a bit strange to use his book as the only source of this information... /Thomas Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Debugging Declarative Rule Condtions? Wouldn't really be relative because that's not how we're hosting it and whether it worked in another host would be irrelevant for us. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Wow6432Node inserted into RegSetValueEx call I've been lucky in that my application (WinPatrol) doesn't do anything tricky that required special support for x64 machines. I've had a number of x64 users with no complaints but something appears to have changed in Vista. When I call RegSetValueEx and pass it my registry location Vista is inserting "Wow6432Node" into the string so the values are written to a registry node off HKLM\SOFTWARE\ Wow6432Node \.... Is this something new for Vista If not, it hasn't been a problem. Yesterday, I had a user report an error which indicates the same Wow6432Node isn't being added when I called RegQueryValueEx. This obviously is a big problem. Oddly the user reports it seems to work under a Standard user, but not when logged on as an Admin Can anyone point me in the direction of any documentation which describes changes to the registry under x64 Thanks, Bill Pytlovany BillP Studios Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - During vista logon reset password link does not show up I have developed an application where I have defined my own credential provider that wraps the MS password provider. When I boot up Vista and at logon time if you enter the wrong password you get a small link 'Reset Password'. But when after I install my application the link does not show up at logon time. Any help please. Thanks. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - What do you do with a WorkflowCompilerResult? These are probably stupid questions, but I can see how you can compile a .xoml and rule file together using the Workflow compiler. Two questions I have: 1. If I am compiling into an output assembly, this output assembly will have my workflow plus any other referenced activities. I suppose the purpose of doing this would be to be able to change the .xoml and recompile and when the host referencing this library is ready to start the workflow it has a new version I'm just trying to figure out, what do you do with the output here, use it as a reference in the host 2. If I do a compile, as in question 1 but do not specify an output library, I assume it will just be compiled into the executable I am compiling from Like if I have a Sequential Workflow Console app. Thanks. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Can you and How do you get two mouse pointers I do not know, I guess there must be a change to that call or it will return the main cursor, but I guess you are saying that it will be impossible Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - WriteGlobalPwrPolicy problem hi, my development system is a notebook, powered by 32-bit Vista Home Premium OS. i am trying to programmatically change the sleep button's behavior. I am pretty sure to use WriteGlobalPwrPolicy for this; but i am experiencing some difficulties. First, let me start with variables: GLOBAL_POWER_POLICY powPol; // i want to save button's initial behavior. so, these two variables needed. POWER_ACTION acSleep, dcSleep; Now, to the action. ... if(!ReadGlobalPwrPolicy(&powPol)) return -1; // save initial behavior acSleep = powPol.user.SleepButtonAc.Action; dcSleep = powPol.user.SleepButtonDc.Action; // assign new behaviors: do nothing powPol.user.SleepButtonAc.Action = PowerActionNone; powPol.user.SleepButtonDc.Action = PowerActionNone; // modifications are complete. Now it is time to write back bool bRet = WriteGlobalPwrPolicy(&powPol); DWORD dwErr = GetLastError(); ... Watch window shows : bRet = true and dwErr = 0. When I execute this code, I do not see the behavior of the button is changed. Neither by practice nor from Power Options window. Maybe I should provide some values for Flags and EventCode members; but i cannot make anything out of it. Currently i am stuck on it and desperately in need of help. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Enable COPP on display driver problem . help me ! thanks Dear Mike, I follow your suggestion to swap the COPP signature and do the encrytion by CryptEncrypt() API, it working and return true. But, i still get the " E_UNEXPECTED " return when i trying to initiate the COPP session by call IAMCertifiedOutputProtection:: SessionSequenceStart() API. Beside, there is very very limited relative resource of COPP implementation that can i find on internet. I had checked my code line by line many time, And still can not figture out what wrong with my code. Can u help me thank you very much. Here is my code, Code Snippet //----------------------------------------------------------------------------------------------------- //Import the Drivers's Public Key //----------------------------------------------------------------------------------------------------- dprintf("[COPPTestBedDlg][------Starting for Import the Drivers's Public Key------]"); CString cstrDriverPubKeyModulus = _T("yxCkp/fatiVYTYmsvLlEcf8CzNtEdqKlB1EqUtJnhAXs6bq+wYIRVRWVn8qRUuHZGDUKM+AY7R61kiy3ASBWVY6kV2UAuLvZ7u5ZxFNQCAq6MCaieaDlKcAzE58RAL3NJt5Q0zxAiImX/o1In4Or7JjDGhiBEkfwn7/HUtQ40OWlxfCfc/Zc4dnIQUgR7vBenULZHBP1Y97QGKLJQphKdlMzOmQiEIpan8JT8DVpnMgQRPL/Tg0GzJ5Ym4cJ/3LMY1VnlstKaYDBaK8ecRGpjvcPaHthWbv1QU6YOAtIaXj0q+NJNZoz/C/t0NZrryKP6YZ7XUWZ7cxMe6IYn2Wcbw=="); CString cstrDriverPubKeyExponent = _T("AQAB"); BYTE *pbDriverPubKeyModulus = new BYTE [256]; BYTE *pbDriverPubKeyExponent = new BYTE [4]; DWORD cbModulus, cbExponent; //Clean buffer int idx; for(idx=0;idx<256;idx++) pbDriverPubKeyModulus[idx] = 0; for(idx=0;idx<4;idx++) pbDriverPubKeyExponent[idx] = 0; //Do Base64-Decoding and swap the byte order if( !DoBase64DecodingAndSwap(cstrDriverPubKeyModulus, pbDriverPubKeyModulus, 344, &cbModulus,256) ) { dprintf("[COPPTestBedDlg][base64-decoding for driver's public key - modulus] failed"); return false; } if( !DoBase64DecodingAndSwap(cstrDriverPubKeyExponent, pbDriverPubKeyExponent, 4, &cbExponent,4)) { dprintf("[COPPTestBedDlg][base64-decoding for driver's public key - exponent] failed"); return false; } dprintf("[COPPTestBedDlg][base64-decoding for driver's public key] OK"); //Convert Exponent from byte array -> DWORD DWORD dwExponent; memset((void *)(&dwExponent), 0, sizeof(DWORD)); memcpy((void *)(&dwExponent), pbDriverPubKeyExponent, sizeof(DWORD)); dprintf("[COPPTestBedDlg]dwExponent = 0x%.8X\n", dwExponent); // Create a new key container to hold the key. HCRYPTPROV hCSP = NULL; bool bRet = ::CryptAcquireContext( &hCSP, // Receives a handle to the CSP. NULL, // Use the default key container. NULL, // Use the default CSP. PROV_RSA_AES, // Use the AES provider (public-key algorithm). CRYPT_SILENT | CRYPT_NEWKEYSET ) true : false; if ( !bRet ) { if(GetLastError() == NTE_EXISTS) { dprintf("[COPPTestBedDlg][App already exist a CSP , try to get existed CSP.]"); bRet = ::CryptAcquireContext( &hCSP, // Receives a handle to the CSP. NULL, // Use the default key container. NULL, // Use the default CSP. PROV_RSA_AES, // Use the AES provider (public-key algorithm). CRYPT_SILENT ) true : false; if(!bRet) { dprintf("[COPPTestBedDlg][Create a new key container to hold the key Failed ] Error [0x%.8X]",GetLastError()); return false; } } } dprintf("[COPPTestBedDlg][Create a key container to hold the key] OK"); // Move the key into the key container. // The data format is: PUBLICKEYSTRUC + RSAPUBKEY + key DWORD cbKeyBlob = cbModulus + sizeof(PUBLICKEYSTRUC) + sizeof(RSAPUBKEY); BYTE *pBlob = new BYTE[cbKeyBlob]; // Fill in the data. PUBLICKEYSTRUC *pPublicKey = (PUBLICKEYSTRUC*)pBlob; pPublicKey->bType = PUBLICKEYBLOB; pPublicKey->bVersion = CUR_BLOB_VERSION; // Always use this value. pPublicKey->reserved = 0; // Must be zero. pPublicKey->aiKeyAlg = CALG_RSA_KEYX; // RSA public-key key exchange. // The next block of data is the RSAPUBKEY structure. const DWORD RSA1 = 0x31415352; //Reference from http://msdn2.microsoft.com/en-us/library/aa387685.aspx //Set to RSA1 (0x31415352) for public keys and to RSA2 (0x32415352) for private keys. //Note The hexadecimal values are the ASCII encoding of RSA1 and RSA2. RSAPUBKEY *pRsaPubKey = (RSAPUBKEY*)(pBlob + sizeof(PUBLICKEYSTRUC)); pRsaPubKey->magic = RSA1; // Public key. pRsaPubKey->bitlen = cbModulus * 8; // Number of bits in the modulus. pRsaPubKey->pubexp = dwExponent; // Exponent. // Copy the modulus into the blob. Put the modulus directly after the // RSAPUBKEY structure in the blob. BYTE *pKey = (BYTE*)(pRsaPubKey + sizeof(RSAPUBKEY)); CopyMemory(pKey, pbDriverPubKeyModulus, cbModulus); // Now import the key. HCRYPTKEY hRSAKey; // Receives a handle to the key. if( !CryptImportKey(hCSP, pBlob, cbKeyBlob, 0, 0, &hRSAKey)) { dprintf("[COPPTestBedDlg][import the key Failed] Error"); if(CryptReleaseContext(hCSP,0)) dprintf("[COPPTestBedDlg]The handle (hCSP)has been released.\n"); return false; } dprintf("[COPPTestBedDlg][------End of Import the Drivers's Public Key------] OK"); delete[] pbDriverPubKeyModulus; delete[] pbDriverPubKeyExponent; //----------------------------------------------------------------------------------------------------- //Initiating the COPP Session //----------------------------------------------------------------------------------------------------- //Generate a symmetric AES key DWORD dwFlag = 0x80; // Bit length: 128-bit AES. dwFlag <<= 16; // Move this value to the upper 16 bits. dwFlag |= CRYPT_EXPORTABLE; // We want to export the key. bRet = CryptGenKey( hCSP, // Handle to the CSP. CALG_AES_128, // Use 128-bit AES block encryption algorithm. dwFlag, &m_hAESKey // Receives a handle to the AES key. ) true : false; if ( !bRet ) { dprintf("[COPPTestBedDlg][Generate a symmetric AES key Failed] Error"); return FALSE; } //Exports AES Key DWORD cbData = 0; BYTE *pData = NULL; // Get the size of the blob. bRet = CryptExportKey(m_hAESKey, 0, PLAINTEXTKEYBLOB, 0, NULL, &cbData) true : false; // Allocate the array and call again. pData = new BYTE[cbData]; bRet = CryptExportKey(m_hAESKey, 0, PLAINTEXTKEYBLOB, 0, pData, &cbData) true : false; //The data returned in pData has the following layout //BLOBHEADER header //DWORD cbSize //BYTE key[] DWORD pcbKey = *(DWORD*)(pData + sizeof(BLOBHEADER)); //chekcing size of COPP session key if (pcbKey != 16) { // Wrong size! Should be 16 bytes (128 bits). dprintf("[COPPTestBedDlg][COPP session key size wrong] Error"); } //generate a 32-bit random number to use as the starting sequence for COPP status requests UINT uStatusSeq = 0; // Status sequence number. UINT uCommandSeq = 0; // Command sequence number. CryptGenRandom(hCSP, sizeof(UINT), (BYTE *)(&uStatusSeq)); CryptGenRandom(hCSP, sizeof(UINT), (BYTE *)(&uCommandSeq)); AMCOPPSignature CoppSignTmp, CoppSig; //clean buffer ZeroMemory(&CoppSignTmp, sizeof(CoppSignTmp)); ZeroMemory(&CoppSig, sizeof(CoppSig)); //----------------------------------------------------------------------------------------------------- // Copy the signature data into CoppSig. //----------------------------------------------------------------------------------------------------- BYTE * ptCoppSig = &CoppSignTmp.Signature[0]; //get pointer of CoppSignTmp //Copy Driver's Random Number to CoppSign CopyMemory(ptCoppSig, &m_randomValue, sizeof(GUID)); ptCoppSig += sizeof(GUID); //Copy AES Key to CoppSign BYTE *pAesKey = (BYTE *)( pData + sizeof(BLOBHEADER) + sizeof(DWORD) ); CopyMemory(ptCoppSig, &pAesKey, pcbKey); ptCoppSig += pcbKey; //Copy Status Sequence Number to CoppSign CopyMemory(ptCoppSig, &uStatusSeq, sizeof(UINT)); ptCoppSig += sizeof(UINT); //Copy Command Sequence Number to CoppSign CopyMemory(ptCoppSig, &uCommandSeq, sizeof(UINT)); //ptCoppSig += sizeof(UINT); //delete[] pData; // Encrypt the signature: const DWORD RSA_PADDING = 11; // 11-byte padding. DWORD cbDataOut = sizeof(AMCOPPSignature); DWORD cbDataIn = cbDataOut - RSA_PADDING; for(DWORD idx=0; idx<cbDataIn; idx++) { CoppSig.Signature[idx] = CoppSignTmp.Signature[cbDataIn-1-idx]; } bRet = CryptEncrypt( hRSAKey, NULL, // No hash object. TRUE, // Final block to encrypt. 0, // Reserved. (BYTE *)&CoppSig.Signature[0], // COPP signature. &cbDataIn, cbDataOut ) true : false; if ( !bRet ) { dprintf("[COPPTestBedDlg][Encryption COPP Session Key Error] Error[0x%.8X]",GetLastError()); if (!CryptDestroyKey(m_hAESKey)) { dprintf("[COPPTestBedDlg]Error during CryptDestroyKey.\n"); } if(CryptReleaseContext(hCSP,0)) dprintf("[COPPTestBedDlg]The handle (hCSP)has been released.\n"); return false; } //----------------------------------------------------------------------------------------------------- //Sending COPP Status Requests //----------------------------------------------------------------------------------------------------- hr = m_pCOPPDevice->SessionSequenceStart(&CoppSig); if (SUCCEEDED(hr)) { // Ready to send COPP commands and status requests. dprintf("[COPPTestBedDlg][Ready to send COPP commands and status requestsr] ok"); AMCOPPStatusInput input; AMCOPPStatusOutput output; // Create a 128-bit random number. GUID *pGuid = new GUID(); if (pGuid == NULL) { // Handle out-of-memory condition. dprintf("[COPPTestBedDlg][Create a 128-bit random number Failed] Error"); return false; } CryptGenRandom(hCSP, sizeof(GUID), (BYTE*)pGuid); // Copy the random number into the command structure. memcpy(&input.rApp, pGuid, sizeof(GUID)); // Fill in the other data. input.guidStatusRequestID = DXVA_COPPQueryProtectionType; // Request type. input.dwSequence = uStatusSeq; // Status sequence number. input.cbSizeData = 0 ; // No other data for this query. // Send the request. hr = m_pCOPPDevice->ProtectionStatus(&input, &output); // Increment the sequence number each time. ++uStatusSeq; return true; } Function DoBase64DecodingAndSwap() Code Snippet bool DoBase64DecodingAndSwap(CString in_cstrB64E, BYTE *out_pB64D,DWORD in_dwStrLen, DWORD *outcbLen, DWORD in_bufSize) { bool bRet = false; DWORD dwCchString = in_dwStrLen, cbLen = 0, dwSkip = 0, dwFlags = 0; bRet = CryptStringToBinary( in_cstrB64E, // String that contains the Base64-encoded modulus. dwCchString, // Length of the string, not including the trailing NULL. CRYPT_STRING_BASE64, // Base64 encoding. NULL, // Do not convert yet. Just calculate the length. &cbLen, // Receives the length of the buffer that is required. &dwSkip, // Receives the number of skipped characters. &dwFlags // Receives flags. ) true : false; // Allocate a new buffer. BYTE *pbBuffer = new BYTE [cbLen]; bRet = CryptStringToBinary( in_cstrB64E, dwCchString, CRYPT_STRING_BASE64, pbBuffer, &cbLen, &dwSkip, &dwFlags ) true : false; *(outcbLen) = cbLen; //-------------------------------------------------- //Do swap //-------------------------------------------------- //Padding the front of the array with 0, //if the decoded byte array is less than buffer size //-------------------------------------------------- for(DWORD idx=0; idx < cbLen; idx++) { out_pB64D[in_bufSize-1-idx] = pbBuffer[idx]; } delete[] pbBuffer; return bRet; } Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Remove installed ActiveX control from "Downloaded Program Files" area. Hi! I need to know how one can remove an installed ActiveX control from the "Downloaded Program Files" area on Windows Vista. In the old versions of Windows like 2000 and XP one could simply right click on the control and then select Remove from the Popup menu to remove it. But this is not working with Windows Vista Business and perhaps it is the same with the other versions of Vista (Basic, Home and Ultimate) also I know that you can remove the ActiveX control through "Disk Cleanup". But as I understand it this application removes not only the one desired control but all downloaded controls from the "Downloaded Program Files" area This is not ok for us since we work in a secure intranet environment there we do not allow the users to download the ActiveX controls to there liking. They have to call for an administrator in order to download or upgrade an ActiveX control. So if you at the time of removal must remove all the controls instead of that special one in order to upgrade it they now also have to reinstall all the controls that should not have been removed and they have to do it at ones to avoid the need for the user to call on them again for every time the other removed controls has to be reinstalled. At the time of removal the administrators wherefore need to have information about all other controls that are installed to be able to administrate them. This is not good since it will take up a lot of unnecessary time for the user and the administrator. It will obstruct the need for upgrade of single controls even if it is important and both user and administrator will feel reluctance to upgrade a specific ActiveX control. To conclude this! I hope that there is a way to solve this that I have missed. Otherwise I strongly hope you will consider introducing the feature of removal of a single specific ActiveX control from the "Downloaded Program Files" area in Vista. Just like it solved in 2000 and XP. Regards Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - SqlPersistenceWorkflowInstanceDescription Help! Thank you for answering. I've set UnloadOnIdle to false and used the persistence locking system to do the trick. When the user selects an item from the list, I resume the workflowInstance that locks the instance and place the WorkflowRuntime in Session so that only that user can access it... To display only the unlocked items I've created a simple stored procedure in the TrackAndPersist DB, that tells me if the instance is locked or unlocked, but I think that I will review this and use the Find() method like you described in the above example. The only problem with this is that persistence becomes a little manual, but like we structured the project, it's fair simple to manage this... It can have other problems, like if the user closes the browser, the instance will be locked until the lock expires, but in this case I think there won't be any problem... Thank you very much for your time. Best regards Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - DrawText: Output letters overlap I try to draw a text using gdi function DrawText, the letters overlaps when the size of the font is very small (3 points) Code Snippet //FONT CFont font; LOGFONT lgFont; memset(&lgFont, 0, sizeof(LOGFONT)); lgFont.lfCharSet = DEFAULT_CHARSET; lgFont.lfClipPrecision = CLIP_DEFAULT_PRECIS; lgFont.lfItalic = fontStyle & FontStyleItalic;//IsItalic(m_strFontStyle); lgFont.lfOrientation = 0; lgFont.lfStrikeOut = FALSE; lgFont.lfUnderline = FALSE; lgFont.lfOutPrecision = OUT_SCREEN_OUTLINE_PRECIS; lgFont.lfQuality = ANTIALIASED_QUALITY | PROOF_QUALITY; strcpy(lgFont.lfFaceName ,m_strFont); lgFont.lfHeight = -fFontSize;//MulDiv(fFontSize, pDC->GetDeviceCaps(LOGPIXELSY), 96); lgFont.lfWeight = (fontStyle & FontStyleBold) FW_BOLD:FW_REGULAR;//GetBoldWeightNew(m_strFontStyle); lgFont.lfEscapement = 0; font.CreateFontIndirect(&lgFont); { int nBkMode = emfDC.SetBkMode(TRANSPARENT); int nGraphicMode = emfDC.SetGraphicsMode(GM_ADVANCED); int nMapMode = emfDC.SetMapMode( MM_TEXT); CFont* pOldFont = emfDC.SelectObject(&font); emfDC.DrawText(sText,rcDest,uFormat); emfDC.SelectObject(pOldFont); nGraphicMode = emfDC.SetGraphicsMode(nGraphicMode); nMapMode = emfDC.SetMapMode( nMapMode); nBkMode = emfDC.SetBkMode(nBkMode); } when using TextOut the output text is OK and I have no problem I have a sample (vs 2005 which reproduce the problem). Thank you Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - DONE - Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39) I've tried that, no joy, i still can't use my DVD-Drive. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Listview extended tile mode Hmm, maybe we should send mails to the European Union about Microsoft refusing to document important APIs, what do you think Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Custom Xoml I have custom Activities that i had created, one of them is an image picker, that uses an image resource manager, which stores all selected images as binaries How do i go about persisting the manager along with the activity: ImagePicker into a xoml file Thanks Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - changing default audio device I doubt it, you can try Realtek's HD-Audio driver package, there is an application can do it. Why people always say "can't do it" here, could someone to clarify it. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Problem Retrieving token detials from STS Yes, that's how you start Event Viewer. Under Application, look for any events that are marked by CardSpace 3.0.0.0. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - IUYV Ok I made it works, thanks for the tips guys. Below is my code, in case if someone is in the same trouble: Code Snippet if((pType->majortype == MEDIATYPE_Video) && ((pType->subtype == MEDIASUBTYPE_IYUV) || (pType->subtype == MEDIASUBTYPE_RGB24)) && (pType->formattype == FORMAT_VideoInfo) && (pType->cbFormat >= sizeof(VIDEOINFOHEADER)) && (pType->pbFormat != NULL)) { VIDEOINFOHEADER *pVih = (VIDEOINFOHEADER*)pType->pbFormat; LONG width; LONG height; SIZE MaxOutSize = m_VideoStreamConfig.MaxOutputSize; width = pVih->bmiHeader.biWidth = m_VideoStreamConfig.MaxOutputSize.cx; height = pVih->bmiHeader.biHeight = m_VideoStreamConfig.MaxOutputSize.cy; //Convert Long to string int radix = 10; // base (2,8,10,16, whatever) wchar_t bufferW[32], bufferH[32]; // temp buffer wchar_t *Width, *Height; // pointer to an array of characters (string) Width = _ltow(width,bufferW,radix); Height = _ltow(height,bufferH,radix); //Display the listed resolution supported by the device CString item; item.Format(_T("%s x %s"), Width, Height); m_Resolution.AddString(item); } Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - No DVD sound on Windows Vista Hello I am developing a DVD player application uses DirectShow architecture. I could not get sound while playing DVD on Windows Vista. No problem on Windows XP. Even sample DVD player(PlayDVD.exe) provided in DirectX 9.0 SDK did not work. Does anybody know the solution for this Much appreciated for any reply. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - Composit Activity Problem Hiya Elif Ok, I have tried that and it still doesn't work. Thanks for trying though :) The CodeBefore and Code After are infact in the same namespace and cs file as the LsmParallel class and strangely enough these two do appear. The weird thing is that this code all worked fine and I have used this activity in a workflow and everything. It just suddenly stopped working one day although no-one has touched the code according to the Team System source control. that is why I wondered if an automatic update might be the cause I'm open to any other suggestions. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - About Windows SDK's Installation's Issue I want to play a video file in a MFC smart device applicaiton runs in Windows CE. this need directshow, can anyone tell me which Windows SDK exactly contains DirectShow. because the SDK i downloaded says it is having mobile tools, but while installing the options remains unchecked and is not able to select for installation. please help me in this regard. Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista
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    - What is the difference between EnlistVolitle and EnlistDurable? Hi, I want to know the difference between the two methods as well as how to apply EnlistDurable in recovery process, thx! Regards, Sam Huang Tag: DirectShow Development Playing AVIs and DirectShow Software Development for Windows Vista

JoJo_Jinx

Hello

I'm trying to develop a game engine using C++, and have been using DirectX... Direct3D, DirectSound, DirectMusic etc, however when I got to using DirectShow I got told Visual Studio.NET couldn't find amvideo.h. After searching on the internet I found someone saying that it had been put in the Windows Platform SDK, and something about it not being advised as the best thing for game design any more.

Please could you tell me if this is true, and if it is true, why it is not suitable and point me in the direction of something that is I'm trying to display video files such as AVI and MPEG. Also unless I misunderstand the signing in system, I can't get on the DirectX forums redirection to write my query down on that forum because for some reason it seems to presume that everyone wanting to go in that part has an Xbox or something, which I don't.

Thankyou

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Re: DirectShow Development Playing AVIs and DirectShow

JoJo_Jinx

Ooh, I have just found the post about this, never mind!

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