Hello all, I got the following makefile for the GD Library (http://www.fred.net/brv/chart/gdchart0.94b.tar.gz[^] : GDC_INCL = . GD_INCL = gd1.3 GD_LIB = gd1.3 CC=gcc all: gdc_samp1 gdc_samp2 gdc_pie_samp # compile the samples gdc_samp1: gdc.o gdchart.o price_conv.o gdc_samp1.o $(GD_LIB)/libgd.a $(CC) -o gdc_samp1 gdc.o gdchart.o price_conv.o gdc_samp1.o -L$(GD_LIB) -lgd -lm gdc_samp1.o: $(GDC_INCL)/gdc.h $(GDC_INCL)/gdchart.h gdc_samp1.c $(CC) -I$(GDC_INCL) -c gdc_samp1.c gdc_samp2: gdc.o gdchart.o price_conv.o gdc_samp2.o $(GD_LIB)/libgd.a $(CC) -o gdc_samp2 gdc.o gdchart.o price_conv.o gdc_samp2.o -L$(GD_LIB) -lgd -lm gdc_samp2.o: $(GDC_INCL)/gdc.h $(GDC_INCL)/gdchart.h gdc_samp2.c $(CC) -I$(GDC_INCL) -c gdc_samp2.c gdc_pie_samp: gdc.o gdc_pie.o price_conv.o gdc_pie_samp.o $(GD_LIB)/libgd.a $(CC) -o gdc_pie_samp gdc.o gdc_pie.o price_conv.o gdc_pie_samp.o -L$(GD_LIB) -lgd -lm gdc_pie_samp.o: $(GDC_INCL)/gdc.h $(GDC_INCL)/gdcpie.h gdc_pie_samp.c $(CC) -I$(GDC_INCL) -c gdc_pie_samp.c # --- compile the lib --- price_conv.o: price_conv.c $(CC) -c price_conv.c gdc.o: gdc.c gdc.h $(CC) -I$(GD_INCL) -I$(GDC_INCL) -c gdc.c gdc_pie.o: $(GDC_INCL)/gdc.h $(GDC_INCL)/gdcpie.h gdc_pie.c $(CC) -I$(GD_INCL) -I$(GDC_INCL) -c gdc_pie.c gdchart.o: $(GDC_INCL)/gdc.h $(GDC_INCL)/gdchart.h gdchart.c $(CC) -I$(GD_INCL) -I$(GDC_INCL) -c gdchart.c $(GD_LIB)/libgd.a: cd $(GD_LIB) ; make -f Makefile libgd.a # --- clean --- clean: rm -f *.o gdc_samp1 gdc_samp2 gdc_pie_samp cd $(GD_LIB) ; make -f Makefile clean My problem is : 1. How did the make file compile and link the gdc_samp1.c file ? Really appreciated if anyone could have some answers ...I am a BIG NOOB in linkers... Thanks, Leslie

Dear All, You have be soo helpful !! I let you know which one is working as soon as get back from home !!! Regards, Leslie

Dear All, I have a DLL with method signature like this : void printname (char* name) I tried using the following code to to make use of my method: ----------------------- string s="abc.xml"; char[] b = new char[100]; s.CopyTo(0,b,0,20); unsafe { fixed (char* p=b); printname(p); } ------------------------ but it seems not working.... can anyone give me some hints ?? Thanks, Leslie

Got it ...you need to use Window CE Remote File Viewer to look at the path.. Everything sorted..thanks everyone !!!

To be precise, I got the following error: An unhandled exception of type 'System.MissingMethodException' occurred in DeviceApplication2.exe Additional information: Can't find PInvoke DLL 'smartdevicedll.dll'.

Hi Tony, Thank you for your reply. What I mean by that is if I drag my compiled DLL from windows explorer directly into the the solution explorer space, I can see the DLL copied into the project. However, if I try adding by clicking: my project -->"add reference" and add my DLL,it says " A reference to mydll could not be added. What is the problem with it ? What should be the proper way in adding my DLL ? And to my second problem concerning my dll function is not working properly, any clue ? Thanks, Leslie

Hello all, I have created a DLL (smart device -> win32 application -> DLL) in Visual Studio 2005 and it can be compiled successfully using the Windows Mobile 6 SDK. I try going to test my DLL by creating a new project (c#->device application -> wm6 application) and add the DLL to it. I tried dragging the DLL into application it works, but it doesnt work when I tried to add reference to it However, whenever I try building the project on simulator, it says it cannot find the DLL. Funny enough, when I directly put the application exe and the dll to my device, it works. But I observe that my DLL library is not performing what it should be. What is the problem with it ? Assistance of any forms will be highly appreciated. Thanks, Leslie

Being a Noob, I just want to ask 2 more questions: 1.I have download all the header and the C files associated with the library. If I ever want to build a DLL, I only need to call the header ? (e.g. I call xmlmemory.h for the "parseDoc" function ??) Do I have to compiled all the C files and the header into a static library first ? 2. When I did iphone development, I notice that there is already a compiled .lib files in the path /usr/bin/lib (if i remember the path correctly =P ). Could I copy the .lib file ? I notice that iphone and windows mobile both use the ARMV4 processor...so the architecture should bethe same ? Thanks, Leslie

Hi Stuart, Thank you for your answer first. I know you must be wondering why we don't use the integrated XML, but it is my supervisor request (OMG ~). We are trying to build a common engine that is written in plain C and is fully operational in iphone and windows mobile environment. Do you have any idea if there is any avaliable library avaliable ? If so, very appreicated if you could just post the link ! Thanks, Leslie

Hello all, I am currently doing my FYP. I download a set of header files of libxml2 with .h files and .lib files. I first try to create a windows 32 application console application and it works fine (to ensure i link it properly) I then head off and try to create a DLLs for the smart device, however, i return with the following errors: Linking... 1> Creating library Windows Mobile 6 Professional SDK (ARMV4I)\Debug/TESTTESTTEST.lib and object Windows Mobile 6 Professional SDK (ARMV4I)\Debug/TESTTESTTEST.exp 1>TESTTESTTEST.obj : error LNK2019: unresolved external symbol xmlParseFile referenced in function ExportedFunction 1>Windows Mobile 6 Professional SDK (ARMV4I)\Debug/TESTTESTTEST.dll : fatal error LNK1120: 1 unresolved externals 1>Build log was saved at "file://c:\Documents and Settings\wu\My Documents\Visual Studio 2005\Projects\TESTTESTTEST\TESTTESTTEST\Windows Mobile 6 Professional SDK (ARMV4I)\Debug\BuildLog.htm" 1>TESTTESTTEST - 2 error(s), 1 warning(s) I created my DLL like this: #include "resourceppc.h" #include "stdio.h" #include "string.h" #include "stdlib.h" #include "xmlmemory.h" #include "parser.h" extern "C" void EXPORT ExportedFunction(){ char * docname = "abc"; xmlDocPtr doc; xmlNodePtr cur; doc = xmlParseFile(docname); } Being noob, i just want to know: 1. It is possible to create a DLL using .lib files ? 2. Is my linking wrong ? Any help of somekind will be greatly appreciated ! Thanks, Leslie

Hi Mbah, I finally got it working. However, I notice that I am reading nothing at all. When I call client.ReadBufferSize, it returned 0 in windows mobile but 8167 in windows (which 8167 is the datasize I set for server sending information to this program). Any suggestions ?

Hi Mbah, I am still getting an error after inserting your line. Any more suggestions ? Thanks !

Hello all, I am currently developing a application on windows mobile that can receive video image from webcam via a desktop. Here is my code: namespace ABC { public partial class Form1 : Form { // private System.Net.IPHostEntry ips = System.Net.Dns.GetHostEntry(System.Net.Dns.GetHostName()); //---port nos and server IP address--- const Int32 PORTNO = 500; string server_IP = "10.0.1.200"; //---size of the video image--- const int SIZEOFIMAGE = 341504; //---use for connecting to the server--- TcpClient client; //--used for sending and receiving data--- byte[] data; //---used for receiving images from the server--- System.Threading.Thread t; private void ReceiveImageLoop() { //---keep on receiving image until an error occurs--- while (ReceiveImage()) { MessageBox.Show("in receive image"); } //---display error message--- MessageBox.Show("Server has stopped responding. Please try restarting the video."); } //---Sends a message to the server--- private void SendMessage(string message) { //---adds a carriage return char--- message += "\n"; try { //---send the text System.Net.Sockets.NetworkStream ns = null; lock (client.GetStream()) { ns = client.GetStream(); byte[] bytesToSend = System.Text.Encoding.ASCII.GetBytes(message); //---sends the text--- ns.Write(bytesToSend, 0, bytesToSend.Length); } } catch (Exception ex) { MessageBox.Show(ex.ToString()); } } //---receive video image from server--- public bool ReceiveImage() { MemoryStream s = new MemoryStream(); NetworkStream nws = client.GetStream(); int counter = 0; int totalBytes = 0; do { MessageBox.Show("trying to read data..."); //---read the incoming data--- int bytesRead = nws.Read(data, 0, client.ReceiveBufferSize); totalBytes += bytesRead; //---write the byte() array in

Hi Leppie, The IP address I specified for this fuction was 127.0.0.1. I specifed this IP address since I want the simulator to connect back to my own computer PC (which it contains a program that relays webcam images back to the simulator). I checked the connection for the simulator it seems it is not on the internet. How could I resolve the problem ? Second, sinec this program will be running on a HSDPA phone, will specifying Tcpclient is not enough ? I Googled some code and it requires some other C# class to enable the GPRS function : http://blogs.msdn.com/anthonywong/archive/2006/03/13/550686.aspx[^] Thanks for your help leppie.

Hi leppie, Thank you again for your assistance. The following is the exception details I got: System.Net.Sockets.SocketException was unhandled Message="An error message cannot be displayed because an optional resource assembly containing it cannot be found" ErrorCode=10061 NativeErrorCode=10061 StackTrace: at System.Net.Sockets.Socket.ConnectNoCheck() at System.Net.Sockets.Socket.Connect() at System.Net.Sockets.TcpClient.Connect() at System.Net.Sockets.TcpClient.Connect() at FYP.Form1.button1_Click() at System.Windows.Forms.Control.OnClick() at System.Windows.Forms.Button.OnClick() at System.Windows.Forms.ButtonBase.WnProc() at System.Windows.Forms.Control._InternalWnProc() at Microsoft.AGL.Forms.EVL.EnterMainLoop() at System.Windows.Forms.Application.Run() at FYP.Program.Main()

Actually my program didn't stop, it just doesn't work. When I press the button to start the TCP connection, it just shows nothing. Should I paste all the code for your reference ?

Hi Leppie, Just wonder what do you mean by final excpetion. Sorry I am a newbie to C#. Please further help by providing me some guidance to get to the final excpetion. Once again, thank you for your help ! --Leslie

Hello all experts, I am currenting doing my final year project about Windows mobile devices. I have the following code: if (((Button)sender).Text == "Start") { try { //---connect to the server--- client = new TcpClient(); client.Connect(server_IP, PORTNO); data = new byte[client.ReceiveBufferSize]; //---send message--- SendMessage("Send"); //---begin reading data asynchronously from the server--- t = new System.Threading.Thread(ReceiveImageLoop); t.Start(); MessageBox.Show("threat created"); } catch (Exception ex) { Console.WriteLine(ex.ToString()); MessageBox.Show("error !"); } } If I compile this code using Windows XP SP2, it is working fine. However, as I paste the code onto WM6, I got the following error message : " A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll A first chance exception of type 'System.Net.Sockets.SocketException' occurred in System.dll " I see that my windows mobile device could not initiate a TCP connection. Could anyone give me some hints ? Wholeheartly thanks !