怎样添加鼠标消息?
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发布时间：2024-09-28 02:19
共3个回答
热心网友
时间：2024-09-29 17:37
//
#include "stdafx.h"
#include "c++draw.h"
#include "c++drawDlg.h"
#include <string>
using namespace std;
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CcdrawDlg 对话框
CcdrawDlg::CcdrawDlg(CWnd* pParent /*=NULL*/)
: CDialog(CcdrawDlg::IDD, pParent)
, pt(0),bl(false)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CcdrawDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_BUTTON1, m_bt1);
}
BEGIN_MESSAGE_MAP(CcdrawDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
ON_WM_MOUSEMOVE()
ON_BN_CLICKED(IDC_BUTTON2, &CcdrawDlg::OnBnClickedButton2)
ON_WM_CREATE()
ON_WM_CHAR()
ON_WM_KEYDOWN()
ON_WM_CLOSE()
ON_BN_CLICKED(IDC_BUTTON1, &CcdrawDlg::OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON3, &CcdrawDlg::OnBnClickedButton3)
END_MESSAGE_MAP()
// CcdrawDlg 消息处理程序
BOOL CcdrawDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
return TRUE; // 除非将焦点设置到控件，否则返回 TRUE
}
void CcdrawDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮，则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
// 这将由框架自动完成。
void CcdrawDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
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;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CcdrawDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CcdrawDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
pt=point;
bl=true;
CDialog::OnLButtonDown(nFlags, point);
}
void CcdrawDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
/*HDC hdc=::GetDC (this->m_hWnd );
::MoveToEx (hdc,pt.x,pt.y ,NULL);
::LineTo (hdc,point.x ,point.y );
::ReleaseDC (this->m_hWnd ,hdc);
//function 2
CDC *pcdc=this->GetDC ();
pcdc->MoveTo (pt);
pcdc->LineTo (point);
this->ReleaseDC (pcdc);*/
//function 3
//CClientDC dc(this);
// CClientDC dc(this->GetParent ()); //获取框架指针
//CWindowDC dc(GetDesktopWindow ());
//CPen pen(PS_DOT,0,RGB(0,0,255));
//CBrush pen(RGB(0,250,240));
// CBitmap bp;
//bp.LoadBitmapW (IDB_BITMAP1);
// CBrush pen(&bp);
//CBrush *pen =CBrush::FromHandle ((HBRUSH)::GetStockObject (NULL_BRUSH));
// CWindowDC dc(this->GetParent ());
//CBrush *op=dc.SelectObject (pen);
//dc.MoveTo (pt);
//dc.LineTo (point);
// CRect rect(pt,point);
// dc.FillRect (rect,pen);
// dc.Rectangle (&rect);
// dc.SelectObject (op);
bl=false;
CDialog::OnLButtonUp(nFlags, point);
}
void CcdrawDlg::OnMouseMove(UINT nFlags, CPoint point)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
CClientDC dc(this);
CPen pen(PS_DOT,22,RGB(r,g,b));
CPen *od=dc.SelectObject (&pen);
if(bl==true)
{
dc.MoveTo (pt);
dc.LineTo (point);
pt=point;
}
dc.SelectObject (od);
CDialog::OnMouseMove(nFlags, point);
}
void CcdrawDlg::OnBnClickedButton2()
{
r=10;
b=200;
g=255;
// TODO: 在此添加控件通知处理程序代码
}
int CcdrawDlg::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CDialog::OnCreate(lpCreateStruct) == -1)
return -1;
// TODO: 在此添加您专用的创建代码
return 0;
}
void CcdrawDlg::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
CDialog::OnChar(nChar, nRepCnt, nFlags);
}
void CcdrawDlg::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
CDialog::OnKeyDown(nChar, nRepCnt, nFlags);
}
void CcdrawDlg::OnClose()
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
AfxMessageBox(L"abc");
CDialog::OnClose();
}
void CcdrawDlg::OnBnClickedButton1()
{
// exit(0);
m_bt1.SetWindowText("好的啊");
// TODO: 在此添加控件通知处理程序代码
}
void CcdrawDlg::OnBnClickedButton3()
{
// TODO: 在此添加控件通知处理程序代码
}
热心网友
时间：2024-09-29 17:38
热心网友
时间：2024-09-29 17:38
