C++新人求教（关于LED测试程序）
新入公司不久，要求写一个“控制大的LED屏”程序的测试程序，要求是界面包括需要显示的内容，同时程序可以控制LED，可是在下一点头绪都没有，完全没有做过，哪位大侠可以指点一下步骤或者思路啊？万分感谢！！！程序如下：// Demo_VCDlg.cpp : implementation file//
#include "stdafx.h"
#include "Demo_VC.h"
#include "Demo_VCDlg.h"
#include <stdio.h>
#include <string.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CDemo_VCDlg dialog
CDemo_VCDlg::CDemo_VCDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDemo_VCDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDemo_VCDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CDemo_VCDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDemo_VCDlg)
DDX_Control(pDX, IDC_BUTTON1, m_Btn);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDemo_VCDlg, CDialog)
//{{AFX_MSG_MAP(CDemo_VCDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_WM_CLOSE()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDemo_VCDlg message handlers
BOOL CDemo_VCDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
// 导入动态链接库
// Load DLL
#if (LIBRARY_CALL_MODE==MODE_STDCALL)
hSCL_Dll = LoadLibrary("SCL_API_stdcall.Dll");
#else
#if (LIBRARY_CALL_MODE==MODE_CDECL)
hSCL_Dll = LoadLibrary("SCL_API_cdecl.Dll");
#else hSCL_Dll=NULL;
#endif
#endif
// 获取可调用的函数的指针
// Get pointer of these functions in the DLL
if (hSCL_Dll!=NULL)
{
SCL_NetInitial = (_SCL_NetInitial )GetProcAddress(hSCL_Dll,"SCL_NetInitial" );
SCL_ComInitial = (_SCL_ComInitial )GetProcAddress(hSCL_Dll,"SCL_ComInitial" );
SCL_Close = (_SCL_Close )GetProcAddress(hSCL_Dll,"SCL_Close" );
SCL_SetRemoteIP = (_SCL_SetRemoteIP )GetProcAddress(hSCL_Dll,"SCL_SetRemoteIP" );
SCL_SetLEDNum = (_SCL_SetLEDNum )GetProcAddress(hSCL_Dll,"SCL_SetLEDNum" );
SCL_TargetSCL2008 = (_SCL_TargetSCL2008 )GetProcAddress(hSCL_Dll,"SCL_TargetSCL2008" );
SCL_GetLastResult = (_SCL_GetLastResult )GetProcAddress(hSCL_Dll,"SCL_GetLastResult" );
SCL_InitForPackage = (_SCL_InitForPackage)GetProcAddress(hSCL_Dll,"SCL_InitForPackage");
SCL_GetPackage = (_SCL_GetPackage )GetProcAddress(hSCL_Dll,"SCL_GetPackage" );
SCL_CheckAnswer = (_SCL_CheckAnswer )GetProcAddress(hSCL_Dll,"SCL_CheckAnswer" );
SCL_FormatDisk = (_SCL_FormatDisk )GetProcAddress(hSCL_Dll,"SCL_FormatDisk" );
SCL_FreeSpace = (_SCL_FreeSpace )GetProcAddress(hSCL_Dll,"SCL_FreeSpace" );
SCL_DirItemCount = (_SCL_DirItemCount )GetProcAddress(hSCL_Dll,"SCL_DirItemCount" );
SCL_GetDirItem = (_SCL_GetDirItem )GetProcAddress(hSCL_Dll,"SCL_GetDirItem" );
SCL_SendFile = (_SCL_SendFile )GetProcAddress(hSCL_Dll,"SCL_SendFile" );
SCL_ReceiveFile = (_SCL_ReceiveFile )GetProcAddress(hSCL_Dll,"SCL_ReceiveFile" );
SCL_RemoveFile = (_SCL_RemoveFile )GetProcAddress(hSCL_Dll,"SCL_RemoveFile" );
SCL_MD = (_SCL_MD )GetProcAddress(hSCL_Dll,"SCL_MD" );
SCL_RD = (_SCL_RD )GetProcAddress(hSCL_Dll,"SCL_RD" );
SCL_SaveFile = (_SCL_SaveFile )GetProcAddress(hSCL_Dll,"SCL_SaveFile" );
SCL_LoadFile = (_SCL_LoadFile )GetProcAddress(hSCL_Dll,"SCL_LoadFile" );
SCL_SendData = (_SCL_SendData )GetProcAddress(hSCL_Dll,"SCL_SendData" );
SCL_ReceiveData = (_SCL_ReceiveData )GetProcAddress(hSCL_Dll,"SCL_ReceiveData" );
SCL_ShowString = (_SCL_ShowString )GetProcAddress(hSCL_Dll,"SCL_ShowString" );
SCL_Reset = (_SCL_Reset )GetProcAddress(hSCL_Dll,"SCL_Reset" );
SCL_Replay = (_SCL_Replay )GetProcAddress(hSCL_Dll,"SCL_Replay" );
SCL_SetTimer = (_SCL_SetTimer )GetProcAddress(hSCL_Dll,"SCL_SetTimer" );
SCL_SetBright = (_SCL_SetBright )GetProcAddress(hSCL_Dll,"SCL_SetBright" );
SCL_SetOnOffTime = (_SCL_SetOnOffTime )GetProcAddress(hSCL_Dll,"SCL_SetOnOffTime" );
SCL_SetTempOffset = (_SCL_SetTempOffset )GetProcAddress(hSCL_Dll,"SCL_SetTempOffset" );
SCL_SetPowerMode = (_SCL_SetPowerMode )GetProcAddress(hSCL_Dll,"SCL_SetPowerMode" );
SCL_GetRunTimeInfo = (_SCL_GetRunTimeInfo)GetProcAddress(hSCL_Dll,"SCL_GetRunTimeInfo");
SCL_LedShow = (_SCL_LedShow )GetProcAddress(hSCL_Dll,"SCL_LedShow" );
SCL_SetExtSW = (_SCL_SetExtSW )GetProcAddress(hSCL_Dll,"SCL_SetExtSW" );
SCL_GetPlayInfo = (_SCL_GetPlayInfo )GetProcAddress(hSCL_Dll,"SCL_GetPlayInfo" );
SCL_PictToXMPFile = (_SCL_PictToXMPFile )GetProcAddress(hSCL_Dll,"SCL_PictToXMPFile" );
SCL_GetMaxFileSize = (_SCL_GetMaxFileSize)GetProcAddress(hSCL_Dll,"SCL_GetMaxFileSize");
SCL_AddXMPToXMP = (_SCL_AddXMPToXMP )GetProcAddress(hSCL_Dll,"SCL_AddXMPToXMP" );
SCL_GetFileDosDateTime = (_SCL_GetFileDosDateTime)GetProcAddress(hSCL_Dll,"SCL_GetFileDosDateTime");
}
// 判断函数指针获取成功否
// Check these pointer
if ((!hSCL_Dll )||
(!SCL_NetInitial )||
(!SCL_ComInitial )||
(!SCL_Close )||
(!SCL_SetLEDNum )||
(!SCL_SetRemoteIP )||
(!SCL_TargetSCL2008 )||
(!SCL_GetLastResult )||
(!SCL_InitForPackage)||
(!SCL_GetPackage )||
(!SCL_CheckAnswer )||
(!SCL_FormatDisk )||
(!SCL_FreeSpace )||
(!SCL_DirItemCount )||
(!SCL_GetDirItem )||
(!SCL_SendFile )||
(!SCL_ReceiveFile )||
(!SCL_RemoveFile )||
(!SCL_MD )||
(!SCL_RD )||
(!SCL_SaveFile )||
(!SCL_LoadFile )||
(!SCL_SendData )||
(!SCL_ReceiveData )||
(!SCL_ShowString )||
(!SCL_Reset )||
(!SCL_Replay )||
(!SCL_SetTimer )||
(!SCL_SetBright )||
(!SCL_SetOnOffTime )||
(!SCL_SetTempOffset )||
(!SCL_SetPowerMode )||
(!SCL_GetRunTimeInfo)||
(!SCL_GetPlayInfo )||
(!SCL_LedShow )||
(!SCL_SetExtSW )||
(!SCL_PictToXMPFile )||
(!SCL_GetMaxFileSize)||
(!SCL_AddXMPToXMP )||
(!SCL_GetFileDosDateTime)
)
{
FreeLibrary(hSCL_Dll);
hSCL_Dll = NULL;
MessageBox("动态链接库初始化失败","SCAPI",MB_OK);
SendMessage(WM_CLOSE,0,0L);
}
return TRUE; // return TRUE unless you set the focus to a control
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CDemo_VCDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CDemo_VCDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CDemo_VCDlg::OnClose()
{
if (hSCL_Dll!=NULL) FreeLibrary(hSCL_Dll);
CDialog::OnClose();
}
#define bOnlyShowStatic FALSE // TRUE: 只静止输出,不带移动效果, FALSE:试验发文件的方式
#define bSendFile FALSE // TRUE: 用 SendFile 发送文件, FALSE:用SendData,SaveFile发送文件
#define bNet TRUE // TRUE: 使用网络收发, FALSE: 使用串口收发
#define mDevID 13 // 通讯设备编号, 任意的2字节数
#define bSCL2008 TRUE // 控制器类型, TRUE:SCL2008, FALSE: SuperComm
#define IPAddr "10.1.1.100" // 控制器 IP 地址
#define LEDNum 0 // 控制器编号
#define UDPPort 12345 // 网络通讯的 UDP 端口号
#define ComPort 1 // 串口通讯的 COM 口
#define Baudrate 38400 // 串口通讯的速率
#define TimeOut 2 // 超时上限
#define RetryTimes 2 // 重试次数
#define LEDWidth 128 // 区域宽
#define LEDHeight 32 // 区域高
#define FileName "Test.Txt" // 文本文件名
void CDemo_VCDlg::OnButton1()
{
char S[1024];
BOOL bOK;
FILE *F;
int Da,Ti;
// Clear LED
if (bSCL2008) sprintf(S,"`R00000000%04d%04d",LEDWidth,LEDHeight);
else sprintf(S,"`R000000%03d%03d" ,LEDWidth,LEDHeight);
// Use 6x12,12x12 fonts
strcat(S," `A1`H2`C0000FF红色12点显示");
strcat(S,"\n\r");
// Use 8x16,16x16 fonts
strcat(S,"`A3`H4`C00FF00绿色16点显示AB");
// Use 12x24,24x24 fonts
strcat(S,"`A5`H6`C00FFFF黄色24点显示CD`Y000");
// Use 16x32,32x32 fonts
strcat(S,"`M3`A7`H8`C00FFFF反白32点显示EF");
// 保存为文本文件
F= fopen(FileName,"w+t");
fprintf(F,"%s",S);
fclose(F);
// 通讯初始化
if (bNet) bOK = SCL_NetInitial(mDevID,"",IPAddr,TimeOut,RetryTimes,UDPPort,bSCL2008);
else bOK = SCL_ComInitial(mDevID,ComPort,Baudrate,LEDNum,TimeOut,RetryTimes,bSCL2008);
if (!bOK) MessageBox("初始化失败","",MB_OK);
// 发送文件
if (bOK)
{
if (bSendFile) bOK = SCL_SendFile(mDevID,2,"",FileName);
else
{
// 拆分的发送文本文件
SCL_GetFileDosDateTime(FileName,&Da,&Ti);
bOK = SCL_SendData(mDevID,0,strlen(S),(BYTE*)S);
if (bOK) bOK=SCL_SaveFile(mDevID,2,FileName,strlen(S),Da,Ti);
}
if (!bOK) MessageBox("发送文件失败","",MB_OK);
}
// 通知控制器重新播放节目
if (bOK)
{
if (bSCL2008) bOK = SCL_Replay(mDevID,0,0);
else bOK = SCL_Replay(mDevID,1,0);
if (!bOK) MessageBox("重启节目表失败","",MB_OK);
}
SCL_Close(mDevID);
}
void CDemo_VCDlg::OnButton2()
{
TEXTINFO Info;
char S[1024];
BOOL bOK;
if (bSCL2008) Info.Left = 4096-LEDWidth;
else Info.Left = 960-LEDWidth;
Info.Top = 0;
Info.Width = LEDWidth;
Info.Height = LEDHeight;
Info.Color = 0x80FF;
Info.ASCFont= 1; // This Font index is related with the load order of the fonts.
Info.HZFont = 2; // This Font index is related with the load order of the fonts.
Info.XPos = 0;
Info.YPos = 0;
// Clear LED
if (bSCL2008) sprintf(S,"`R00000000%04d%04d",LEDWidth,LEDHeight);
else sprintf(S,"`R000000%03d%03d" ,LEDWidth,LEDHeight);
// Use 6x12,12x12 fonts
strcat(S," `A1`H2`C0000FF红色12点显示");
// Use 8x16,16x16 fonts
strcat(S,"`A3`H4`C00FF00绿色16点显示AB");
// Use 12x24,24x24 fonts
strcat(S,"`A5`H6`C00FFFF黄色24点显示CD`Y000");
// Use 16x32,32x32 fonts
strcat(S,"`M3`A7`H8`C00FFFF反白32点显示EF");
// 通讯初始化
if (bNet) bOK = SCL_NetInitial(mDevID,"",IPAddr,TimeOut,RetryTimes,UDPPort,bSCL2008);
else bOK = SCL_ComInitial(mDevID,ComPort,Baudrate,LEDNum,TimeOut,RetryTimes,bSCL2008);
if (!bOK) MessageBox("初始化失败","",MB_OK);
if (!bOnlyShowStatic)
{
// 删除移动播出的文本文件
// 仅实现静止显示则可不调用这个函数
if (bOK)
{
bOK = SCL_RemoveFile(mDevID,2,FileName);
if (!bOK) MessageBox("删除文件失败","",MB_OK);
}
// 重启节目表,使屏幕静止(因为节目表中的文本文件不存在了)
// 仅实现静止显示则可不调用这个函数
if (bOK)
{
if (bSCL2008) bOK = SCL_Replay(mDevID,0,0);
else bOK = SCL_Replay(mDevID,1,0);
if (!bOK) MessageBox("重启节目表失败","",MB_OK);
Sleep(1000);
}
}
// 显示文字串,自动排版,超出部分自动截断
if (bOK)
{
bOK = SCL_ShowString(mDevID,(short*)&Info.Left,S);
if (!bOK) MessageBox("文字直接输出失败","",MB_OK);
}
SCL_Close(mDevID);
}
