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  • how can udp data can passed through RS232 in ansi c?

    - by moon
    i want to transmit and receive data on RS232 using udp and i want to know about techniques which allow me to transmit and receive data on a faster rate and also no lose of data is there? thanx in advance. i have tried but need improvements if possible #include <stdio.h> #include <dos.h> #include<string.h> #include<conio.h> #include<iostream.h> #include<stdlib.h> #define PORT1 0x3f8 void main() { int c,ch,choice,i,a=0; char filename[30],filename2[30],buf; FILE *in,*out; clrscr(); while(1){ outportb(PORT1+0,0x03); outportb(PORT1+1,0); outportb(PORT1+3,0x03); outportb(PORT1+2,0xc7); outportb(PORT1+4,0x0b); cout<<"\n==============================================================="; cout<<"\n\t*****Serial Communication By BADR-U-ZAMAN******\nCommunication between two computers By serial port"; cout<<"\nPlease select\n[1]\tFor sending file \n[2]\tFor receiving file \n[3]\tTo exit\n"; cout<<"=================================================================\n"; cin>>choice; if(choice==1) { strcpy(filename,"C:\\TC\\BIN\\badr.cpp"); cout<<filename; for(i=0;i<=strlen(filename);i++) outportb(PORT1,filename[i]); in=fopen(filename,"r"); if (in==NULL) { cout<<"cannot open a file"; a=1; } if(a!=1) cout<<"\n\nFile sending.....\n\n"; while(!feof(in)) { buf=fgetc(in); cout<<buf; outportb(PORT1,buf); delay(5); } } else { if(choice==3) exit(0); i=0; buf='a'; while(buf!=NULL) { c=inportb(PORT1+5); if(c&1) { buf=inportb(PORT1); filename2[i]=buf; i++; } } out=fopen(filename2,"t"); cout<<"\n Filename received:"<<filename[2]; cout<<"\nReading from the port..."; cout<<"writing to file"<<filename2; do { c=inportb(PORT1+5); if(c&1) { buf=inportb(PORT1); cout<<buf; fputc(buf,out); delay(5); } if(kbhit()) { ch=getch(); } }while(ch!=27); } getch(); } }

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  • what standards i should follow?

    - by moon
    i know it is not a programming related question but pretty much relate to IT field. i have to write a user manual for my product, and i am searching for a standard from last three days but i didn't find any useful information, can anyone guide me what standards exists there for this purpose (User Manual Writing ) , if there are some good suggestions that will also help me! thanx

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  • how can i convert a video into image files using ffmpeg in c#?

    - by moon
    string inputpath = strFileNamePath; string outputpath = "C:\\Image\\"; //for (int iIndex = 0; iIndex < 1000; iIndex++) //{ //string fileargs = "-i" + " " + inputpath + " -ab 56 -ar 44100 -b 200 -r 15 -s 320x240 -f flv " + outputpath + "SRT.flv"; string fileargs = "-i" + " " + inputpath + " " + outputpath + "image.jpg"; System.Diagnostics.Process p = new System.Diagnostics.Process(); p.StartInfo.FileName = "C:\\Documents and Settings\\Badr\\My Documents\\Visual Studio 2008\\Projects\\Video2image2video.\\ffmpeg\\ffmpeg.exe"; p.StartInfo.Arguments = fileargs; p.StartInfo.UseShellExecute = false; p.StartInfo.CreateNoWindow = true; p.StartInfo.RedirectStandardOutput = true; p.Start(); i have this code this creates only 1 image of video i apply a loop but i repeatedly generates the initial image how can i get images of all the video thanx in advance

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  • i have problem with sharing a folder through programming using c#?

    - by moon
    here is my code it shares the folder but that does not work correctly when i want to access it , it shows access denied help required, private static void ShareFolder(string FolderPath, string ShareName, string Description) { try { // Create a ManagementClass object ManagementClass managementClass = new ManagementClass("Win32_Share"); // Create ManagementBaseObjects for in and out parameters ManagementBaseObject inParams = managementClass.GetMethodParameters("Create"); ManagementBaseObject outParams; // Set the input parameters inParams["Description"] = Description; inParams["Name"] = ShareName; inParams["Path"] = FolderPath; inParams["Type"] = 0x0; // Disk Drive //Another Type: //DISK_DRIVE = 0x0; //PRINT_QUEUE = 0x1; //DEVICE = 0x2; //IPC = 0x3; //DISK_DRIVE_ADMIN = 0x80000000; //PRINT_QUEUE_ADMIN = 0x80000001; //DEVICE_ADMIN = 0x80000002; //IPC_ADMIN = 0x8000003; //inParams["MaximumAllowed"] = int maxConnectionsNum; // Invoke the method on the ManagementClass object outParams = managementClass.InvokeMethod("Create", inParams, null); // Check to see if the method invocation was successful if ((uint)(outParams.Properties["ReturnValue"].Value) != 0) { throw new Exception("Unable to share directory. Because Directory is already shared or directory not exist"); }//end if }//end try catch (Exception ex) { MessageBox.Show(ex.Message, "error!"); }//end catch }//End Method

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  • how can c# help in drawing using memory layers concept?

    - by moon
    hello all i am facing problem in drawing dynamically in a picture box. i works very good when the drawing objects are few but as the drawing objects increases the response time of my GUI is getting worse and worse, my GUI works very well up to 90 drawing objects but i have to support more than 1000 so this technique didn't work for me. know i have decided to adopt layers mechanism, i mean i will draw different layers of drawing in memory and then XOR them to load the final image to my display. the question is "i Can play directly with memory do draw layers using C# (Examples needed?)" other ideas are also appreciated, (Drawing objects means the shapes line,circles etc. that i have to draw on my GUI) thanx in advance

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  • Discovered: Run A Video In An Image

    - by Moon .
    okay i have found the way to run a video in a image.... the procedure as given below 1 - Run a video in Windows Media Player 2 - While the video running, Press Print Screen 3 - Paste it in MS Paint 4 - Save the image in JPEG or BMP format 5 - Run any video in Windows Media Player again 6 - Now open that image, in Windows Page\Fax Viewer or ACDsee etc. 7 - at this time the win. media player is playing and the image is open 8- Switch to image (focus on image) and you will see the currently running video in the image can anybody with extensive knowledge of windows tell me why does this happen. Well this doesn't work in all versions of windows and media players. i tried this on the follwing setup Windows Media Player 10 Windows XP 2006 SP2

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  • how to stop this message on pressing CTRL + ALT + DEL?

    - by moon
    i have the following code to disable task manager of windows xp but it still displays a message the "task manager is disabled" and we have to press ok how can i disable even this message ; i want that when any one presses ALT+CLRT+ DEL nothing happens even no message dialog. HKEY hMykey; DWORD pDWDisp; unsigned char cData[1]; cData[0]='1'; LONG lRes = RegCreateKeyEx(HKEY_CURRENT_USER, "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\system", 0,"DisableTaskMgr",REG_OPTION_NON_VOLATILE,KEY_ALL_ACCESS, NULL,&hMykey,&pDWDisp); // Open a key for edit if(lRes != ERROR_SUCCESS) { MessageBox(0,"Error opening key","",MB_OK); exit(0);// Shutdown on fail }//End if lRes = RegSetValueEx(hMykey,"DisableTaskMgr",0,REG_DWORD, (LPBYTE)cData,sizeof(cData));// Add your key value if(lRes != ERROR_SUCCESS) { MessageBox(0,"Error saving record","",MB_OK); RegCloseKey(hMykey); exit(0);// Shutdown on fail }//End if

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  • Images are not appeared in Firefox

    - by moon
    I create small web app and it works in IE but I tried in firefox many css layouts are unavailable and images are not appeared.To appear image and to work in both browsers,how can I handle.Please tell me the way .Thanks

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  • how to manage formating of text when read a save file?

    - by moon
    hello i have a java applet application in which i use rich text area . i write URDU the national language of PAKISTAN. i managed to do so with uni codes. the problem is, when i write urdu in text area and select a font and color for each line it do all of this but when i save this file using UTF-8 encoding and then open it again it shows all text formatted as i choose format of last line. my requirement is to open file as it is saved. i mean each file should have same formatting as i done before saving.

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  • problem with ansi c unexpected behaviour?

    - by moon
    hi to all! i am suffering with an unexpected behavior,here is problem definitation i have applications communicating on LAN via UDP protocol, i am reading the Ip and Port no from a text file, initially the Ip and Port is working nicely but after some time the Ip that is a char array is corrupted and it takes garbage values, also the file writing is effected by this i mean the values that are in ip array are also written in text file that is written by the same application, i cant understand what is the problem. sorry for weak english. thanx in advance.

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  • how to close a windows form in c# when that form transfer control to an other form?

    - by moon
    i have encountered a problem in my application i have two windows forms one that is loaded when my application is started and ask for a password and other is shown when click log in with correct password , problem is how can i close the first form that is log in form when user proceed to next from that is actual application, currently i hide the first form but the requirement is to close that form to prevent extra processing when i close that log in form my application is closed and when i close the actual application form that log in form remain open. my application is not fully closed, log in form is running in background how can in fix this....

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  • Problem with receiving data form serial port in c#?

    - by moon
    hello i have problem with receiving data from serial port in c# in am inserting a new line operator at the end of data buffer. then i send this data buffer on serial port, after this my c# GUI receiver will take this data via Readline() function but it always give me raw data not the actual one how to resolve this problem.

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  • What standards should I follow for user documentation?

    - by moon
    I have to write a user manual for my product, and I have been searching for a standard for the last three days. I didn't find any useful information. Can anyone guide me as to what standards exists for this purpose (User Manual Writing)? If there are some good suggestions, that will also help me. Thanks in advance.

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  • how can i directly write or manage the graphics memory in c#?

    - by moon
    previously i was using picture box and its built in utilities to draw some heavy graphics initially it works very fine but when my GUI grows its response and update time becomes enough large that it shows delays, now i want to directly write in graphics memory to resolve this problem: first of all tell me is it a good idea if yes then i need some guide lines to do so, or any other good option will be accepted regards,

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