不好意思哈。。是我问题没说清楚,我问的不是具体函数图形的实现,而是在对话框的两个特定区域显示,区域的背景暂时定为黑色吧。 能不能用PICTURE控件设定这两个特定区域,,并改变这两个特定区域背景,图形就在这两个特定区域分别显示,而不在其他区域显示。。 或者用其他方法(位图)。。 下面是我做的一部分,其他的不知道怎么弄。 // DrawDlgDlg.cpp : implementation file //#include "stdafx.h" #include "DrawDlg.h" #include "DrawDlgDlg.h"#include "math.h"#ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialog { public: CAboutDlg();// Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL// Implementation protected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP() };CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT }void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP }BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAP END_MESSAGE_MAP()///////////////////////////////////////////////////////////////////////////// // CDrawDlgDlg dialogCDrawDlgDlg::CDrawDlgDlg(CWnd* pParent /*=NULL*/) : CDialog(CDrawDlgDlg::IDD, pParent) { //{{AFX_DATA_INIT(CDrawDlgDlg) // 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 CDrawDlgDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CDrawDlgDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP }BEGIN_MESSAGE_MAP(CDrawDlgDlg, CDialog) //{{AFX_MSG_MAP(CDrawDlgDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_BUTTON1, OnButton1) ON_BN_CLICKED(IDC_BUTTON2, OnButton2) //}}AFX_MSG_MAP END_MESSAGE_MAP()///////////////////////////////////////////////////////////////////////////// // CDrawDlgDlg message handlersBOOL CDrawDlgDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } } // 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
return TRUE; // return TRUE unless you set the focus to a control }void CDrawDlgDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } }// 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 CDrawDlgDlg::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 CDrawDlgDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; }void CDrawDlgDlg::OnButton1() //余弦图形 { // TODO: Add your control notification handler code here for (int i=0;i<400;i++) { CClientDC dc(this); dc.MoveTo(300+i,100+100*cos(50*2*3.14*i)); dc.LineTo(300+(i+1),100+100*cos(50*2*3.14*(i+1))); }}void CDrawDlgDlg::OnButton2() //正弦图形 { // TODO: Add your control notification handler code here for (int i=0;i<400;i++) { CClientDC dc(this); dc.MoveTo(300+i,400+100*sin(50*2*3.14*i)); dc.LineTo(300+(i+1),400+100*sin(50*2*3.14*(i+1))); } }
如果你不介意一点一点的化也可以#include <windows.h>
#include <math.h>
LRESULT CALLBACK WindowProc(HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam
);
#define NUM 1000
POINT apt [NUM];#define TWOPI (2 * 3.14159)
int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nShowCmd
)
{
WNDCLASS wc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wc.hCursor = LoadCursor(NULL,IDC_ARROW);
wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wc.hInstance = hInstance;
wc.lpfnWndProc = WindowProc;
wc.lpszClassName = TEXT("FloodFill");
wc.lpszMenuName = NULL;
wc.style = CS_HREDRAW|CS_VREDRAW; if(!RegisterClass(&wc))
{
MessageBox(NULL,TEXT("注册窗口类失败!"),TEXT("你好!"),MB_OK);
return 0;
} HWND hwnd = CreateWindow( TEXT("FloodFill"),
TEXT("正弦曲线"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL
);
ShowWindow(hwnd,nShowCmd);
UpdateWindow(hwnd); MSG msg;
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
} return msg.wParam;
}LRESULT CALLBACK WindowProc(HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam
)
{ PAINTSTRUCT ps;
HDC hdc;
static int cxClient, cyClient ; switch(message)
{
case WM_SIZE:
cxClient = LOWORD (lParam);
cyClient = HIWORD (lParam);
return 0 ;
case WM_PAINT:
{
hdc = BeginPaint(hwnd,&ps);
MoveToEx (hdc, 0,cyClient / 2, NULL) ;
LineTo (hdc, cxClient, cyClient / 2) ; for (int i = 0 ; i < NUM ; i++)
{
apt[i].x = i * cxClient / NUM ;
apt[i].y = (int) (cyClient / 2 * (1 - sin (TWOPI * i / NUM))) ;
}
Polyline (hdc, apt, NUM) ; EndPaint(hwnd,&ps);
}
return 0;
case WM_DESTROY:
DestroyWindow(hwnd);
PostQuitMessage(0);
return 0;
default:
break; }
return DefWindowProc(hwnd,message,wParam,lParam);
}
能不能用PICTURE控件设定这两个特定区域,,并改变这两个特定区域背景,图形就在这两个特定区域分别显示,而不在其他区域显示。。
或者用其他方法(位图)。。
下面是我做的一部分,其他的不知道怎么弄。
// DrawDlgDlg.cpp : implementation file
//#include "stdafx.h"
#include "DrawDlg.h"
#include "DrawDlgDlg.h"#include "math.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialog
{
public:
CAboutDlg();// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA // ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CDrawDlgDlg dialogCDrawDlgDlg::CDrawDlgDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDrawDlgDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDrawDlgDlg)
// 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 CDrawDlgDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDrawDlgDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}BEGIN_MESSAGE_MAP(CDrawDlgDlg, CDialog)
//{{AFX_MSG_MAP(CDrawDlgDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CDrawDlgDlg message handlersBOOL CDrawDlgDlg::OnInitDialog()
{
CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
} // 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
return TRUE; // return TRUE unless you set the focus to a control
}void CDrawDlgDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}// 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 CDrawDlgDlg::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 CDrawDlgDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}void CDrawDlgDlg::OnButton1() //余弦图形
{
// TODO: Add your control notification handler code here for (int i=0;i<400;i++)
{
CClientDC dc(this);
dc.MoveTo(300+i,100+100*cos(50*2*3.14*i));
dc.LineTo(300+(i+1),100+100*cos(50*2*3.14*(i+1)));
}}void CDrawDlgDlg::OnButton2() //正弦图形
{
// TODO: Add your control notification handler code here
for (int i=0;i<400;i++)
{
CClientDC dc(this);
dc.MoveTo(300+i,400+100*sin(50*2*3.14*i));
dc.LineTo(300+(i+1),400+100*sin(50*2*3.14*(i+1)));
}
}
OnButton函数里面只要调用invalidate刷新窗口和传变量给onpaint,根据变量绘制相应的图形