MFC dialog box displays gif image transfer MFC GDI + GIF files display "turn"

In the header file which added:

Image* image;
GUID Guid ;
UINT frameCount;
UINT framePos; ULONG_PTR gdiplusToken;
 afx_msg void OnTimer(UINT_PTR nIDEvent); void LoadGif();

You need to rely on the header file:

#include <Gdiplusheaders.h>
#include <Gdiplus.h>

using namespace Gdiplus;

Class constructor which added interface:

// start gdi Image :: FromFile else fails
     GdiplusStartupInput gdiplusStartupInput;
    GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);

    image = NULL;
    frameCount = 0; framePos = 0;

Add a timer message processing:

BEGIN_MESSAGE_MAP(CMFCApplication1Dlg, CDialogEx)
    ON_WM_SYSCOMMAND()
    ON_WM_PAINT()
    ON_WM_QUERYDRAGICON()
    ON_BN_CLICKED(IDC_BUTTON1, &CMFCApplication1Dlg::OnBnClickedButton1)
    ON_WM_TIMER()
    ON_BN_CLICKED(IDC_BUTTON2, &CMFCApplication1Dlg::OnBnClickedButton2)
END_MESSAGE_MAP()

Load GIF file:

void CMFCApplication1Dlg::LoadGif()
{
    WCHAR strModule[MAX_PATH * 2] = { 0 }; GetModuleFileNameW (NULL, strModule, the MAX_PATH * 2 ); :: PathRemoveFileSpecW (strModule); wsprintfW (strModule + wcslen (strModule), L " \\% s.gif ", L " sVcodec " ); Image = Image :: the FromFile ( strModule); // get the number of dimensions for a dimension to gif COUNT = Image- UINT> GetFrameDimensionsCount (); the GUID of pDimensionIDs = * (* the GUID of) new new the GUID of [COUNT]; Image-> GetFrameDimensionsList (pDimensionIDs, COUNT); strGuid WCHAR [ 39 ]; StringFromGUID2 (pDimensionIDs [ 0], strGuid, 39 ); frameCount = Image-> GetFrameCount (& pDimensionIDs [ 0 ]); // Delete [] pDimensionIDs;// get the time interval between the frames // first obtain the number of time intervals, PropertyTagFrameDelay GIG attribute ID is a predefined value GDI +, showing the delay time of the frame data tag = Image- FrameDelayNums UINT> GetPropertyItemSize (PropertyTagFrameDelay) ; lpPropertyItem the PropertyItem * = new new the PropertyItem [FrameDelayNums]; Image-> GetPropertyItem (PropertyTagFrameDelay, FrameDelayNums, lpPropertyItem); the Guid = FrameDimensionTime; Image-> SelectActiveFrame (& the Guid, framePos The);}

Timer processing:

void CMFCApplication1Dlg::OnTimer(UINT_PTR nIDEvent)
{
    if (image)
    {
        CWnd* pic = GetDlgItem(IDC_STATIC_PIC);
        Graphics gh(pic->GetDC()->m_hDC); CRect rect; GetDlgItem(IDC_STATIC_PIC)->GetClientRect(&rect); gh.DrawImage(image, 0, 0, rect.Width(), rect.Height()); //gh.DrawImage(image, 0, 0, image->GetWidth(), image->GetHeight()); //设置当前需要显示的帧数 image->SelectActiveFrame(&Guid, framePos); framePos++; if (framePos == frameCount) { framePos = 0; } } CDialogEx::OnTimer(nIDEvent); }

Start timer:

SetTimer(0, 400, NULL);

    LoadGif();

Gdi need to rely on libraries:

gdiplus.lib

Reference Address: https://blog.csdn.net/sz76211822/article/details/51507616