mfc中添加一个Picture控件,怎样实现点击一个按钮连续播放规定数量的照片。
该回答引用ChatGPT
在MFC中,您可以使用CImage类来实现图像控件。下面是一个示例,其中您可以使用“播放”按钮来连续播放规定数量的照片。
#include "afxwin.h"
#include "stdafx.h"
#include "MyPictureApp.h"
#include "MyPictureDlg.h"
#include "atlimage.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CMyPictureDlg::CMyPictureDlg(CWnd* pParent /*=NULL*/)
: CDialogEx(CMyPictureDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CMyPictureDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Control(pDX, IDC_PICTURE, m_pictureCtrl);
}
BEGIN_MESSAGE_MAP(CMyPictureDlg, CDialogEx)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, &CMyPictureDlg::OnBnClickedButton1)
END_MESSAGE_MAP()
BOOL CMyPictureDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
SetIcon(m_hIcon, TRUE);
SetIcon(m_hIcon, FALSE);
return TRUE;
}
void CMyPictureDlg::OnPaint()
{
if (IsIconic()) {
CPaintDC dc(this);
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
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;
dc.DrawIcon(x, y, m_hIcon);
} else {
CDialogEx::OnPaint();
}
}
HCURSOR CMyPictureDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CMyPictureDlg::OnBnClickedButton1()
{
CImage image;
int num_images = 2;
for (int i = 0; i < num_images; i++) {
CString