这个剧情计划win32的问题是什么？

本文介绍了这个剧情计划win32的问题是什么？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 您好！ 我想使用Win32 api绘制串行数据。但是，SetPixel函数仅绘制部分数据。它不会在窗口的某个假想线下方绘制任何东西，在该线上它完美地工作。有人知道问题是什么吗？ 我相信问题出现在第二个问题中。窗口的某个点是SetPixel函数不再绘制数据。我也相信它与窗户重新塑造窗户的方式有关。 谢谢！Hello! I want to plot serial data using the Win32 api. However, the SetPixel function is ploting only part of the data. It doesnt plot anything below a certain imaginary line of the window, over that line it works perfectly. Does anybody know what the problem is? I believe that the problem is in the second thread. There is a certain point of the window that the SetPixel function doesn't plot data anymore. I also believe that it has to do with the way windows reapaints the window.Thanks!/* - Comunicaçao Serial Entre o Microcontrolador e um Computador - *//* ----------- Recebe Dados do Microcontrolador e Plota ---------- */// To Do: // Verificar o Erro de quando clica duas vezes na tela // Verificar o Erro de porque de ve em quando ele recebe dados diferentes // Organizar Código //#if defined(UNICODE) && !defined(_UNICODE) #define _UNICODE#elif defined(_UNICODE) && !defined(UNICODE) #define UNICODE#endif#include <tchar.h>#include <windows.h>#include <stdio.h>#include <stdlib.h>#define BUTTON1 1#define BUTTON2 2#define IDM_FILE_NEW 3#define IDM_FILE_OPEN 4#define IDM_FILE_QUIT 5#define STOP 6/* Declare Windows procedure */LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);/* Declare */HWND textfield;HWND TextBox;FILE* fp;HANDLE hCom;HANDLE Handlethread;DCB dcb;BOOL fSuccess;DWORD WINAPI THREAD1(LPVOID lpParam);HWND hwnd;DWORD ExitCode = 0;int *lpArgPtr;void AddMenus(HWND);char textSaved[20];char textSaved2[]={"Connecting."};HDC hdc;/* Make the class name into a global variable */TCHAR szClassName[ ] = _T("EXAME DE SINCOPE VASOVAGAL");int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nCmdShow){ /* This is the handle for our window */ MSG messages; /* Here messages to the application are saved */ WNDCLASSEX wincl; /* Data structure for the windowclass */ /* The Window structure */ wincl.hInstance = hThisInstance; wincl.lpszClassName = szClassName; wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */ wincl.style = CS_DBLCLKS; /* Catch double-clicks */ wincl.cbSize = sizeof (WNDCLASSEX); /* Use default icon and mouse-pointer */ wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION); wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION); wincl.hCursor = LoadCursor (NULL, IDC_ARROW); wincl.lpszMenuName = "Menu"; /* No menu */ wincl.cbClsExtra = 0; /* No extra bytes after the window class */ wincl.cbWndExtra = 0; /* structure or the window instance */ /* Use Windows's default colour as the background of the window */ wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND; /* Register the window class, and if it fails quit the program */ if (!RegisterClassEx (&wincl)) return 0; /* The class is registered, let's create the program*/ hwnd = CreateWindowEx ( 0, /* Extended possibilites for variation */ szClassName, /* Classname */ _T("EXAME DE SÍNCOPE VASOVAGAL"), /* Title Text */ WS_OVERLAPPEDWINDOW, /* default window */ CW_USEDEFAULT, /* Windows decides the position */ CW_USEDEFAULT, /* where the window ends up on the screen */ 544, /* The programs width */ 700, /* and height in pixels */ HWND_DESKTOP, /* The window is a child-window to desktop */ NULL, /* No menu */ hThisInstance, /* Program Instance handler */ NULL /* No Window Creation data */ ); /* Make the window visible on the screen */ ShowWindow (hwnd, nCmdShow); /* Run the message loop. It will run until GetMessage() returns 0 */ while (GetMessage (&messages, NULL, 0, 0)) { /* Translate virtual-key messages into character messages */ TranslateMessage(&messages); /* Send message to WindowProcedure */ DispatchMessage(&messages); } /* The program return-value is 0 - The value that PostQuitMessage() gave */ return messages.wParam;}/* This function is called by the Windows function DispatchMessage() */LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){//Caso o botao1 seja apertado;//int gwtstat = 0;char * t = &textSaved[0];char pcCommPort[50] = "\\\\.\\COM4";char SuceText[] = {"Connected"};char stopedcon[]= {"Connection Stoped"};char ErrorText[] = {"Error Connecting"};char ConnectionError[] = {"Port Not Connected"};int j;/*--- Estrutura para quando pintar a tela ---*/PAINTSTRUCT ps;TEXTMETRIC tm; //Decide o tamanho das letrasTCHAR teste[]={"Exame:"}; switch (message) /* handle the messages */ { case WM_CREATE: AddMenus(hwnd);//Adiciona Menus a janela TextBox = CreateWindow("EDIT", "", WS_BORDER | WS_CHILD | WS_VISIBLE, 10, 540,400,20, hwnd,NULL,NULL,NULL); CreateWindow("BUTTON", "SAVE", WS_VISIBLE | WS_CHILD | WS_BORDER, 420, 540, 70, 20, hwnd, (HMENU) 1, NULL, NULL); CreateWindow("BUTTON", "START", WS_VISIBLE | WS_CHILD | WS_BORDER, 420, 580, 70, 20, hwnd, (HMENU) 2, NULL, NULL); CreateWindow("BUTTON", "STOP", WS_VISIBLE | WS_CHILD | WS_BORDER, 300, 580, 70, 20, hwnd, (HMENU) 6, NULL, NULL); break; case WM_PAINT: hdc = BeginPaint(hwnd,&ps); FillRect(hdc,&ps.rcPaint,(HBRUSH)(COLOR_WINDOW+1)); //Pinta a Janela de Branco; SelectObject(hdc, GetStockObject( NULL_BRUSH ) ); for (j=10;j<500;j++){ SetPixel(hdc,j,0,RGB(0,0,0)); } for (j=10;j<500;j++){ SetPixel(hdc,j,255,RGB(0,0,0)); } for (j=10;j<500;j++){ SetPixel(hdc,j,510,RGB(0,0,0)); } //Rectangle(hdc,10,110,500,300); TextOut(hdc,1,515,teste,strlen(teste)); //How to change BackGround Colour? With SetBkColour EndPaint(hwnd,&ps); break; case WM_COMMAND: switch (LOWORD(wParam)){ case BUTTON1: gwtstat = GetWindowText(TextBox,t, 20); ::MessageBox(hwnd,textSaved,textSaved,MB_OK); fopen("info.txt","a+"); fwrite(teste,1,sizeof(teste),fp); //TerminateThread(Handlethread,ExitCode); break; case BUTTON2: hCom = CreateFile( pcCommPort, GENERIC_READ | GENERIC_WRITE, 0, // must be opened with exclusive-access NULL, // no security attributes OPEN_EXISTING, // must use OPEN_EXISTING 0, // not overlapped I/O NULL // hTemplate must be NULL for comm devices ); if (hCom == INVALID_HANDLE_VALUE) { ::MessageBox(hwnd,ConnectionError,ConnectionError,MB_OK); return (1); } fSuccess = GetCommState(hCom, &dcb); if (!fSuccess) { //failed return (2); } dcb.BaudRate = CBR_9600; // set the baud rate dcb.ByteSize = 8; // data size, xmit, and rcv dcb.Parity = NOPARITY; // no parity bit dcb.StopBits = TWOSTOPBITS; // one stop bit fSuccess = SetCommState(hCom, &dcb); if (!fSuccess) { ::MessageBox(hwnd,ConnectionError,ConnectionError,MB_OK); return (3); }else{ Handlethread = CreateThread(NULL,0,THREAD1,lpArgPtr,0,NULL); } ::MessageBox(hwnd,SuceText,SuceText,MB_OK); break; case IDM_FILE_NEW: Beep(100, 100); break; case IDM_FILE_OPEN: Beep(50, 100); break; case IDM_FILE_QUIT: SendMessage(hwnd,WM_CLOSE,0,0); break; case STOP: if (CloseHandle(hCom)==0){ ::MessageBox(hwnd,ErrorText,NULL,MB_OK); } else{ ::MessageBox(hwnd,stopedcon,stopedcon,MB_OK); } break; } case WM_DESTROY: //PostQuitMessage (0); //send a WM_QUIT to the message queue break; default: /* for messages that we don't deal with */ return DefWindowProc (hwnd, message, wParam, lParam); } return 0;}void AddMenus(HWND hwnd) { HMENU hMenubar; HMENU hMenu; hMenubar = CreateMenu(); hMenu = CreateMenu(); AppendMenuW(hMenu,MF_STRING, IDM_FILE_NEW, L"&New"); AppendMenuW(hMenu,MF_STRING, IDM_FILE_OPEN, L"&Open"); AppendMenuW(hMenu,MF_SEPARATOR, 0,NULL); AppendMenuW(hMenu,MF_STRING, IDM_FILE_QUIT, L"&Quit"); AppendMenuW(hMenubar, MF_POPUP, (UINT_PTR) hMenu, L"&File"); SetMenu(hwnd, hMenubar); } //SECOND THREAD;DWORD WINAPI THREAD1(LPVOID lpParam){ //PROBLEM STARTS HERE printf("I am inside the thread\n"); int i = 0; int y = 0; bool tx; char PlotData[500] = {0}; DWORD num; byte in[100]={0}; while(1){ tx = ReadFile(hCom,&in,2,&num,NULL); if (tx==0||num!=2){ printf("ERROR"); if (CloseHandle(hCom)==0){ ExitThread(ExitCode); } }else{ printf("%x\t",(in[0])); } if(i>=500){ for(y=1;y<500;y++){ hdc = GetDC(hwnd); SetPixel(hdc,y,PlotData[y],RGB(255,255,255)); ReleaseDC(hwnd,hdc); PlotData[y-1] = PlotData[y]; PlotData[499] = (255 - in[0]); } for(y=0;y<500;y++){ hdc = GetDC(hwnd); SetPixel(hdc,y,PlotData[y],RGB(255,0,0)); ReleaseDC(hwnd,hdc); } }else if (i<500){ //hdc = GetDC(hwnd); PlotData[i] = (255 - in[0]); //ReleaseDC(hwnd,hdc); i++; } } return NULL;}推荐答案 Thiago写道：我实际上并不知道这一点。谢谢你告诉我！有人为我格式化了它。好吧，我被告知SetPixel太慢了，但我恐怕不知道还能做什么。你有提示吗？你能推荐一个实时情节库吗？ 谢谢， ThiagoI actualy didn't know this. Thanks for telling me! Someone formatted it for me. Ok, I've been told that SetPixel is too slow, but I am afraid I don't know what else to do. Do you have tips? Could you recommend a real-time plot library?Thanks,Thiago欢迎你。 一些非常着名的具有高级图形的库是，例如，开源GTK +和Qt。但你必须记住它们是跨平台的C ++库，可以是服务器作为操作系统抽象层，并且不仅包括图形，特别是开发UI的方式，还有更多（在Qt的情况下）。请参阅： http://en.wikipedia.org/wiki/GTK%2B， http://www.gtk.org ， http://en.wikipedia.org/wiki/Qt_%28software%29 ， https://qt-project.org/ 。 在Windows上，很多人使用MFC，但这只是Win32上的一个非常薄的层，我认为它非常丑陋，糟糕和过时，总是避免它。此外，它拥有专有许可证，没有开源，与新的微软产品相比，随着时间的推移越来越开放，但对于旧的MFC，我想，现在为时已晚。我会说，主要的好处是它随Visual Studio一起提供。它可以作为开发主要用于纯Windows API的基础，在您不太兴趣深入研究Windows API的情况下... 您也可以尝试根据您的需求找到别的东西。考虑查看这些链接集： http://en.cppreference.com/w / cpp / links / libs ， http：// en .wikipedia.org / wiki /类别：C％2B％2B_libraries ， http：// stanford.edu/~stepp/cppdoc 。 我以后意识到你可能对一般图形不感兴趣（尽管你的通用图形代码示例）。使用通用图形库，您可以随时开发图表/绘图库（就像我以前那样，而不是一次），但您可能只对更专业的主题，图表，绘图感兴趣。例如，请考虑 http://code.google.com/p/matplotpp 。 另外，您是否考虑过使用C ++ / CLI而不是C ++？它既可以用于本机Windows（或跨平台开发），也可以用于CLI（.NET）。 .NET是非常不同的，它与自己的图形库绑定，它很好地从本机操作系统中抽象出来，并且有很多用于.NET的图形/绘图/图表库，例如Microsoft Charts库。 请参阅： http： //en.wikipedia.org/wiki/C%2B%2B/CLI ， http://www.ecma-international.org/publications/standards/Ecma-372.htm ， http://www.gotw.ca/publications/C++CLIRationale.pdf ， http://msdn.microsoft.com/en-us/library/xey702bw.aspx 。 -SAYou are welcome.Some very well-known libraries with advanced graphics are, for example, open-source GTK+ and Qt. But you have to remember than they are cross-platform C++ libraries, can be server as OS abstraction layers and include a lot more than just graphics, in particular, the way to develop UI, and a lot more (in case of Qt). Please see:http://en.wikipedia.org/wiki/GTK%2B,http://www.gtk.org,http://en.wikipedia.org/wiki/Qt_%28software%29,https://qt-project.org/.On Windows, many people use MFC, but this is just a pretty thin layer over Win32, and I consider it as pretty ugly, poor and obsolete, always avoided it. Also, it has the proprietary license, no open source, in contrast to new Microsoft products which a getting more and more open with time, but for old MFC, I guess, it's too late. The major benefit, I would say, it that it is supplied with Visual Studio. It can be used as a base for developing mostly in pure Windows API, having less hassles where you are not very interested to dig into Windows API…You can also try to find something else, according to your needs. Consider reviewing these sets of links:http://en.cppreference.com/w/cpp/links/libs,http://en.wikipedia.org/wiki/Category:C%2B%2B_libraries,http://stanford.edu/~stepp/cppdoc.I later realized that you might not be interested in general graphics (despite of your general-graphics code sample). Using the general graphics libraries, you can always develop your chart/plot libraries (as I used to do, and not once), but you may be interested only in more specialized topic, charts, plotting. Consider, for example, http://code.google.com/p/matplotpp.Also, did you consider using C++/CLI instead of C++? It can be used for both native Windows (or cross-platform development), as well as CLI (.NET). .NET is very different, it is bound with its own graphics libraries, it is well abstracted from native OS, and there are a lot more graphics/plotting/charting libraries for .NET, such as Microsoft Charts library.Please see:http://en.wikipedia.org/wiki/C%2B%2B/CLI,http://www.ecma-international.org/publications/standards/Ecma-372.htm,http://www.gotw.ca/publications/C++CLIRationale.pdf,http://msdn.microsoft.com/en-us/library/xey702bw.aspx.Good luck,—SA 这篇关于这个剧情计划win32的问题是什么？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！ 上岸，阿里云！