您好我正在开发一个项目，我们正在创建一个与KUKA机器人进行通信的UDP服务器。我们能够与机器人建立连接并来回交换数据，但是当发生事件时，例如由于电机过扭矩导致的机器人故障。因此，为了检测此错误，我们在代码中添加了一个超时，以便主对话框将关闭并重新打开，以便重新初始化所有变量，并且我们可以将连接设置为重新建立。
继承服务器代码：
#include "stdafx.h"
#include "HapticRobot.h"
#include "CMaths.h"
using namespace chai3d;
#include <winsock.h>
using namespace std;
#pragma comment(lib, "Ws2.lib")
#include <fstream>
#include <string>
#include <sstream>
DWORD WINAPI DoGravity(LPVOID lpParameter);
#define REFRESH_INTERVAL 0 // sec
const int kBufferSize = 1024;
int nTempHold;
extern HapticDevice hd;
extern HWND g_hWndHapticBox;
extern bool bRobotInMotion, bRobotConnectInit, bRobotConnected;
extern Handles hc;
bool err;
std::string stSend, stSendXML, stLine;
std::string stRobotStatus , stAppend;
TCHAR *chRobotStatus;
//variables for timeout
fd_set fds;
int n;
struct timeval tv;
//// Prototypes ////////////////////////////////////////////////////////
SOCKET SetUpListener(const char* pcAddress, int nPort);
bool EchoIncomingPackets(SOCKET sd);
//// DoWinsock /////////////////////////////////////////////////////////
// The module's driver function -- we just call other functions and
// interpret their results.
int DoWinsock(const char* pcAddress, int nPort)
{
int nRetval = 0;
ifstream inFile("HardDisk/ExternalData.xml");
if (inFile.is_open())
{
while ( inFile.good() )
{
getline ( inFile, stLine);
stSendXML.append(stLine);
}
inFile.close();
}
SendDlgItemMessage(g_hWndHapticBox, IDC_LIST_Server, LB_INSERTSTRING, 0, (LPARAM)L"Establishing the listener...");
SOCKET ListeningSocket = SetUpListener(pcAddress, htons(nPort));
SendDlgItemMessage(g_hWndHapticBox, IDC_LIST_Server, LB_INSERTSTRING, 0, (LPARAM)L"Waiting for connections...");
bRobotConnectInit = true;
SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotStatus, _T("Waiting for robot"));
while (1)
{
EchoIncomingPackets(ListeningSocket);
bRobotConnected = false;
bRobotConnectInit = true;
SendDlgItemMessage(g_hWndHapticBox, IDC_LIST_Server, LB_INSERTSTRING, 0, (LPARAM)L"Acceptor restarting...");
}
}
//// SetUpListener /////////////////////////////////////////////////////
// Sets up a listener on the given interface and port, returning the
// listening socket if successful; if not, returns INVALID_SOCKET.
SOCKET SetUpListener(const char* pcAddress, int nPort)
{
u_long nInterfaceAddr = inet_addr(pcAddress);
if (nInterfaceAddr != INADDR_NONE)
{
SOCKET sd = socket(AF_INET, SOCK_DGRAM, 0);
sockaddr_in sinInterface;
sinInterface.sin_family = AF_INET;
sinInterface.sin_addr.s_addr = nInterfaceAddr;
sinInterface.sin_port = nPort;
if (bind(sd, (sockaddr*)&sinInterface,
sizeof(sockaddr_in)) != SOCKET_ERROR)
{
return sd;
}
}
return INVALID_SOCKET;
}
//// EchoIncomingPackets ///////////////////////////////////////////////
// Bounces any incoming packets back to the client. We return false
// on errors, or true if the client closed the socket normally.
bool EchoIncomingPackets(SOCKET sd)
{
// Read data from client
std::string stReceive;
std::string stIPOC;
std::wstring stTime;
int nStartPos, nEndPos;
char acReadBuffer[kBufferSize], acWriteBuffer[512];
int nReadBytes;
struct sockaddr_in clientAddr;
int sockAddrSize = sizeof(struct sockaddr_in);
//declarations for the low pass filter
int CURRENT_VALUE = 2;
double T = .004, w_co, OMEGA_co, f_co;
hd.bFirstRunRobot = true;
do
{
//This will be to timeout the socket connection
FD_ZERO(&fds);
FD_SET(sd, &fds);
tv.tv_sec = 5;
tv.tv_usec = 0;
n = select (sd, &fds, NULL, NULL, &tv );
if (n == 0)
{
PostMessage(g_hWndHapticBox,WM_CLOSE, 0, 0);
Sleep(5000);
PostMessage(g_hWndHapticBox, WM_INITDIALOG, 0, 0);
Sleep(1000);
//printf("Timeout..\n");
//HapticBox(HWND, UINT, WPARAM, LPARAM);
//return 0;
}
else if (n == -1)
{
printf("Error..\n");
return 1;
}
// end timeout
nReadBytes = recvfrom(sd, acReadBuffer, sizeof(acReadBuffer), 0, (struct sockaddr*)&clientAddr, &sockAddrSize);
//nReadBytes = recvfrom(sd, acReadBuffer, sizeof(acReadBuffer), MSG_PEEK, (struct sockaddr*)&clientAddr, &sockAddrSize);
//if (nReadBytes == SOCKET_ERROR)
//{
// SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotStatus, _T("ERROR"));
//}
if (nReadBytes < 0 || nReadBytes == 0)
{
SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotStatus, _T("ERROR 1"));
return true;
}
if (nReadBytes > 0)
{
if (bRobotConnectInit)
{
bRobotConnectInit = false;
bRobotConnected = true;
SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotStatus, _T("Connected to Robot"));
}
}
stSend = stSendXML;
stReceive = acReadBuffer;
nStartPos = stReceive.find ("<IPOC>") + 6;
nEndPos = stReceive.find ("</IPOC>");
stIPOC = stReceive.substr (nStartPos, nEndPos - nStartPos);
nStartPos = stSend.find ("<IPOC>") + 6;
nEndPos = stSend.find ("</IPOC>");
stSend.replace(nStartPos, nEndPos - nStartPos, stIPOC);
//Raw sensor data
nStartPos = stReceive.find ("RFx=") + 5;
nEndPos = stReceive.find ("RFy=") - 2;
hd.stRFx = stReceive.substr (nStartPos, nEndPos - nStartPos);
hd.szRFx = hd.stRFx.c_str();
hd.RFx = strtod(hd.szRFx, NULL);
hd.RFx = hd.RFx * 0.22;
nStartPos = stReceive.find ("RFy=") + 5;
nEndPos = stReceive.find ("RFz=") - 2;
hd.stRFy = stReceive.substr (nStartPos, nEndPos - nStartPos);
hd.szRFy = hd.stRFy.c_str();
hd.RFy = strtod(hd.szRFy, NULL);
hd.RFy = hd.RFy * 0.22;
**//...more XML stuff...//**
//data the is to be sent to the robot
if (hd.FirstTimePosition)
{
hd.RobotXStartPosition = hd.RobotXPosition;
hd.RobotYStartPosition = hd.RobotYPosition;
hd.RobotZStartPosition = hd.RobotZPosition;
hd.FirstTimePosition = false;
}
if(hd.LinearScale == 4)
{
f_co = 0.5;
}
else if (hd.LinearScale == 3)
{
f_co = 0.5;
}
else if (hd.LinearScale == 2)
{
f_co = 1;
}
else if (hd.LinearScale == 1)
{
f_co = 2;
}
else if (hd.LinearScale == 0.5)
{
f_co = 2;
}
else
{
f_co = 0.5;
}
if (hd.Fz < hd.MaxForcePos)
{
hd.ForceLimitPosZ = false;
}
if (hd.Fz > hd.MaxForceNeg)
{
hd.ForceLimitNegZ = false;
}
if (hd.Fz > hd.MaxForcePos || hd.ForceLimitPosZ)
{
if (!hd.ForceLimitPosZ)
{
hd.CurrentZtoRobotPosition = hd.ZtoRobot;
}
if (hd.CurrentZtoRobotPosition >= hd.ZtoRobot)
{
hd.NewZtoRobot = hd.PreviousZtoRobot;
hd.ForceLimitPosZ = true;
}
else
{
hd.ForceLimitPosZ = false;
}
}
if (hd.ForceLimitPosZ)
{
hd.ForceZtoRobot = hd.NewZtoRobot;
}
else
{
hd.ForceZtoRobot = hd.ZtoRobot;
}
w_co = f_co * C_TWO_PI;
OMEGA_co = (2/T) * cTanRad((w_co * T) / 2);
hd.raw_x[CURRENT_VALUE] = hd.XtoRobot;
hd.raw_y[CURRENT_VALUE] = hd.YtoRobot;
hd.raw_z[CURRENT_VALUE] = hd.ForceZtoRobot;
hd.filtered_x[CURRENT_VALUE] = (pow(((OMEGA_co) / ((2 / T) + OMEGA_co)), 2)) *
((hd.raw_x[CURRENT_VALUE]) + (2 * hd.raw_x[CURRENT_VALUE - 1] + hd.raw_x[CURRENT_VALUE - 2]))
- (((2 * (OMEGA_co - (2 / T))) / ((2 / T) + OMEGA_co)) * hd.filtered_x[CURRENT_VALUE - 1])
- ((pow(((OMEGA_co - (2 / T)) / ((2 / T) + OMEGA_co)),2)) * hd.filtered_x[CURRENT_VALUE - 2]);
**//more digital filter stuff//**
hd.raw_x[CURRENT_VALUE - 2] = hd.raw_x[CURRENT_VALUE - 1];
hd.raw_y[CURRENT_VALUE - 2] = hd.raw_y[CURRENT_VALUE - 1];
hd.raw_z[CURRENT_VALUE - 2] = hd.raw_z[CURRENT_VALUE - 1];
hd.raw_x[CURRENT_VALUE - 1] = hd.raw_x[CURRENT_VALUE];
hd.raw_y[CURRENT_VALUE - 1] = hd.raw_y[CURRENT_VALUE];
hd.raw_z[CURRENT_VALUE - 1] = hd.raw_z[CURRENT_VALUE];
hd.filtered_x[CURRENT_VALUE - 2] = hd.filtered_x[CURRENT_VALUE - 1];
hd.filtered_y[CURRENT_VALUE - 2] = hd.filtered_y[CURRENT_VALUE - 1];
hd.filtered_z[CURRENT_VALUE - 2] = hd.filtered_z[CURRENT_VALUE - 1];
hd.filtered_x[CURRENT_VALUE - 1] = hd.filtered_x[CURRENT_VALUE];
hd.filtered_y[CURRENT_VALUE - 1] = hd.filtered_y[CURRENT_VALUE];
hd.filtered_z[CURRENT_VALUE - 1] = hd.filtered_z[CURRENT_VALUE];
hd.stXtoRobot = dtostr(hd.filtered_x[CURRENT_VALUE]);
nStartPos = stSend.find ("X=") + 3;
stSend.replace(nStartPos, 6, hd.stXtoRobot);
hd.stYtoRobot = dtostr(hd.filtered_y[CURRENT_VALUE]);
nStartPos = stSend.find ("Y=") + 3;
stSend.replace(nStartPos, 6, hd.stYtoRobot);
hd.stZtoRobot = dtostr(hd.filtered_z[CURRENT_VALUE]);
nStartPos = stSend.find ("Z=") + 3;
stSend.replace(nStartPos, 6, hd.stZtoRobot);
if (hd.ForceLimitPosZ)
{
hd.PreviousZtoRobot = hd.NewZtoRobot;
}
else
{
hd.PreviousZtoRobot = hd.ZtoRobot;
}
strcpy( static_cast<char*>( &acWriteBuffer[0] ), stSend.c_str() );
if (nReadBytes > 0)
{
int nSentBytes = 0;
int SendLength = strlen(acWriteBuffer);
while (nSentBytes < SendLength)
{
int nTemp = sendto(sd, acWriteBuffer, SendLength, 0, (const sockaddr*)&clientAddr, sockAddrSize);
nTempHold = nTemp;
if (nTemp > 0)
{
nSentBytes += nTemp;
}
else if (nTemp == SOCKET_ERROR)
{
return false;
}
else
{
// Client closed connection before we could reply to
// all the data it sent, so bomb out early.
SendDlgItemMessage(g_hWndHapticBox, IDC_LIST_Server, LB_INSERTSTRING, 0, (LPARAM)L"Peer unexpectedly dropped connection!");
return true;
}
}
}
else if (nReadBytes == SOCKET_ERROR)
{
return false;
}
hd.bFirstRunRobot = false;
}while (nReadBytes != 0);
SendDlgItemMessage(g_hWndHapticBox, IDC_LIST_Server, LB_INSERTSTRING, 0, (LPARAM)L"Connection closed by peer.");
bRobotConnected = false;
bRobotConnectInit = true;
SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotStatus, _T("Waiting for robot"));
SetDlgItemText(g_hWndHapticBox, IDC_STATIC_RobotInMotion, _T("Robot not in motion"));
return true;
//}
}
以下是GUI的代码：
// HapticRobot.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "HapticRobot.h"
#include <sstream>
#include <string>
using namespace std;
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE g_hInst; // current instance
HWND g_hWndCommandBar; // command bar handle
HWND g_hWndHapticBox; // haptic dialog handle
bool bRobotInMotion, bRobotConnectInit, bRobotConnected;
extern HapticDevice hd;
HDC hdc;
Handles hc;
DWORD WINAPI DoGravity(LPVOID lpParameter);
DWORD WINAPI DoConnectRobot(LPVOID lpParameter);
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE, LPTSTR);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK HapticBox(HWND, UINT, WPARAM, LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
// Perform application initialization:
if (!InitInstance(hInstance, nCmdShow))
{
return FALSE;
}
HACCEL hAccelTable;
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_HAPTICROBOT));
DialogBox(hInstance, (LPCTSTR)IDD_HAPTIC, NULL, HapticBox);
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
ATOM MyRegisterClass(HINSTANCE hInstance, LPTSTR szWindowClass)
{
WNDCLASS wc;
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_HAPTICROBOT));
wc.hCursor = 0;
wc.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH);
wc.lpszMenuName = 0;
wc.lpszClassName = szWindowClass;
return RegisterClass(&wc);
}
//FUNCTION: InitInstance(HINSTANCE, int)
//PURPOSE: Saves instance handle and creates main window
//COMMENTS:
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
TCHAR szTitle[MAX_LOADSTRING]; // title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // main window class name
g_hInst = hInstance; // Store instance handle in our global variable
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_HAPTICROBOT, szWindowClass, MAX_LOADSTRING);
if (!MyRegisterClass(hInstance, szWindowClass))
{
return FALSE;
}
hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
if (!hWnd)
{
return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
if (g_hWndCommandBar)
{
CommandBar_Show(g_hWndCommandBar, TRUE);
}
return TRUE;
}
//
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_HELP_ABOUT:
DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, About);
break;
case IDM_FILE_EXIT:
dhdClose ();
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_CREATE:
g_hWndCommandBar = CommandBar_Create(g_hInst, hWnd, 1);
CommandBar_InsertMenubar(g_hWndCommandBar, g_hInst, IDR_MENU, 0);
CommandBar_AddAdornments(g_hWndCommandBar, 0, 0);
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
dhdClose ();
CommandBar_Destroy(g_hWndCommandBar);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
RECT rectChild, rectParent;
int DlgWidth, DlgHeight; // dialog width and height in pixel units
int NewPosX, NewPosY;
// trying to center the About dialog
if (GetWindowRect(hDlg, &rectChild))
{
GetClientRect(GetParent(hDlg), &rectParent);
DlgWidth = rectChild.right - rectChild.left;
DlgHeight = rectChild.bottom - rectChild.top ;
NewPosX = (rectParent.right - rectParent.left - DlgWidth) / 2;
NewPosY = (rectParent.bottom - rectParent.top - DlgHeight) / 2;
// if the About box is larger than the physical screen
if (NewPosX < 0) NewPosX = 0;
if (NewPosY < 0) NewPosY = 0;
SetWindowPos(hDlg, 0, NewPosX, NewPosY,
0, 0, SWP_NOZORDER | SWP_NOSIZE);
}
return (INT_PTR)TRUE;
case WM_COMMAND:
if ((LOWORD(wParam) == IDOK) || (LOWORD(wParam) == IDCANCEL))
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
case WM_CLOSE:
EndDialog(hDlg, message);
return TRUE;
}
return (INT_PTR)FALSE;
}
// Message handler for haptic box.
BOOL CALLBACK HapticBox(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
SetWindowPos(hDlg, 0, 130, 200,
0, 0, SWP_NOZORDER | SWP_NOSIZE);
hd.Done = 1;
bRobotInMotion = false;
bRobotConnectInit = false;
g_hWndHapticBox = hDlg;
hd.HapticScaleX = 100;
hd.HapticScaleY = 100;
hd.HapticScaleZ = 100;
hd.MaxForcePos = 160;
hd.MaxForceNeg = -160;
hd.EnableForces = true;
hd.ForceLimitPosX = false;
hd.ForceLimitPosY = false;
hd.ForceLimitPosZ = false;
hd.ForceLimitNegX = false;
hd.ForceLimitNegY = false;
hd.ForceLimitNegZ = false;
hd.filtered_x[0,1,2] = 0; //low pass output for x
hd.filtered_y[0,1,2] = 0; //low pass output for y
hd.filtered_z[0,1,2] = 0; //low pass output for z
hd.raw_x[0,1,2] = 0; //raw haptic data for low pass x
hd.raw_y[0,1,2] = 0; //raw haptic data for low pass y
hd.raw_z[0,1,2] = 0; //raw haptic data for low pass z
hc.Xmm = GetDlgItem(g_hWndHapticBox, IDC_STATIC_X);
hc.Ymm = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Y);
hc.Zmm = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Z);
hc.XtoRobot = GetDlgItem(g_hWndHapticBox, IDC_STATIC_XtoRobot);
hc.YtoRobot = GetDlgItem(g_hWndHapticBox, IDC_STATIC_YtoRobot);
hc.ZtoRobot = GetDlgItem(g_hWndHapticBox, IDC_STATIC_ZtoRobot);
hc.Fx = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Fx);
hc.Fy = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Fy);
hc.Fz = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Fz);
hc.rHz = GetDlgItem(g_hWndHapticBox, IDC_STATIC_Rate);
hc.HapticStatus = GetDlgItem(g_hWndHapticBox, IDC_STATIC_HapticStatus);
hc.RobotInMotion = GetDlgItem(g_hWndHapticBox, IDC_STATIC_RobotInMotion);
hc.RobotStatus = GetDlgItem(g_hWndHapticBox, IDC_STATIC_RobotStatus);
///////////////////////////////////////////////////////////////////////////////////////
hd.HapticConnected = false;
if (hd.HapticConnected == false)
{
DWORD nThreadID;
CreateThread(0, 0, DoConnectRobot, 0, 0, &nThreadID);
Sleep(100);
CreateThread(0, 0, DoGravity, 0, 0, &nThreadID);
hd.HapticConnected = true;
}
return (INT_PTR)TRUE;
case WM_CTLCOLORSTATIC:
if(IDC_STATIC_HapticStatus == ::GetDlgCtrlID((HWND)lParam))
{
hdc = (HDC)wParam;
if (hd.Done == 1)
{
SetBkColor(hdc, RGB(255,0,0)); //red
return (BOOL)::CreateSolidBrush(RGB(255,0,0)); //red
}
else
{
SetBkColor(hdc, RGB(0,255,0)); //green
return (BOOL)::CreateSolidBrush(RGB(0,255,0)); //green
}
}
if(IDC_STATIC_RobotStatus == ::GetDlgCtrlID((HWND)lParam))
{
hdc = (HDC)wParam;
if (bRobotConnectInit)
{
SetBkColor(hdc, RGB(250, 255, 5)); //yellow
return (BOOL)::CreateSolidBrush(RGB(250, 255, 5));
}
else if (bRobotConnected)
{
SetBkColor(hdc, RGB(0,255,0)); //green
return (BOOL)::CreateSolidBrush(RGB(0,255,0));
}
else
{
SetBkColor(hdc, RGB(255,0,0)); //red
return (BOOL)::CreateSolidBrush(RGB(255,0,0));
}
}
if(IDC_STATIC_RobotInMotion == ::GetDlgCtrlID((HWND)lParam))
{
hdc = (HDC)wParam;
if (bRobotInMotion)
{
SetBkColor(hdc, RGB(0,255,0)); //green
return (BOOL)::CreateSolidBrush(RGB(0,255,0));
}
else
{
SetBkColor(hdc, RGB(255,0,0)); //red
return (BOOL)::CreateSolidBrush(RGB(255,0,0));
}
}
break;
case WM_CLOSE:
hd.Done = 1;
EndDialog(hDlg, message);
return TRUE;
}
return (INT_PTR)FALSE;
}
有更多与解决方案相关的代码，如果需要，我可以附加。我的thougt被认为只是调用WM_INITDIALOG案例，所以基本上它与关闭程序并重新打开它是一样的。任何建议都会被暗示。
答案 0 :(得分：0)
Callign WM_INITDIALOG绝对不会做你想象的那样。除非您完全理解它们，否则不要发送随机Windows消息。
根据您的设计，我的建议是让您的程序启动自己的另一个实例并让旧实例退出。查看MSDN上的CreateProcess，了解有关如何启动其他进程的详细信息。我认为，鉴于您已经拥有的内容，这将是最易于维护且易于编码的解决方案。
答案 1 :(得分：0)
我建议像这样重复调用DialogBox：
do
{
DialogBox(hInstance, (LPCTSTR)IDD_HAPTIC, NULL, HapticBox);
} while (ReOpenDialog);
其中ReOpenDialog是您根据操作成功设置的全局（或者，为了避免全局，您可以通过EndDialog使用DialogBox的对话框返回结果）。
此外，您不需要消息循环，因为DialogBox调用内部有自己的调用，因此创建了一个阻塞调用（这就是为什么我的上面的循环将起作用，实际上！）。