图像处理 基于Visual C++编程 学习笔记 持续更新中。。。

    int entry=MessageBox(NULL,"A new win32 app","hello~",MB_YESNOCANCEL);//提示内容，提示
    if(entry==IDYES)
    {
        MessageBox(NULL,"YES","你点击了：",MB_OK);
    }
    else if(entry==IDNO)
    {
        MessageBox(NULL,"NO","你点击了：",MB_OK);
    }
    else
    {
        MessageBox(NULL,"CANCEL","你点击了：",MB_OK);
    }  

#include "stdafx.h"
#include "resource.h"
BOOL CALLBACK MainProc(
  HWND hwndDlg,  // handle to dialog box
  UINT uMsg,     // message
  WPARAM wParam, // first message parameter
  LPARAM lParam  // second message parameter
)
{
    if(WM_COMMAND==uMsg)
    {
        if(LOWORD(wParam)==IDCANCEL)
        {
            EndDialog(hwndDlg,IDCANCEL);
        }
    }
    return FALSE;
}
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    DialogBox(hInstance,(LPCSTR)IDD_DIALOG1,NULL,MainProc);
    return 0;
}

    if(WM_COMMAND==uMsg)
    {
        if(LOWORD(wParam)==IDCANCEL)
        {
            EndDialog(hwndDlg,IDCANCEL);
            return TRUE;
        }
        if(LOWORD(wParam)==IDOK)
        {
            int left=GetDlgItemInt(hwndDlg,IDC_LEFT,NULL,TRUE);
            int right=GetDlgItemInt(hwndDlg,IDC_RIGHT,NULL,TRUE);
            int result=left+right;
            SetDlgItemInt(hwndDlg,IDC_RESULT,result,TRUE);
        }
    }
    

void CBMPALGORITHMDlg::OnMenuopen() 
{
    // TODO: Add your command handler code here
    char szFilter[]="BMP Files (*.bmp)|*.bmp|All Files(*.*)|*.*||";
    CFileDialog dlg( TRUE,"BMP",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,szFilter ); 
    if(dlg.DoModal() == IDOK) 
    { 
        CString strPathName = dlg.GetPathName();   
        SetDlgItemText(IDC_OUTPUT,strPathName);//输出路径
        MessageBox("ok","hi~",MB_OK);
    } 
}

void CBMPALGORITHMDlg::OnMenuopen() 
{
    CDC *pDC = m_image1.GetDC();
    CRect myRECT;
    m_image1.GetClientRect(&myRECT);
    // TODO: Add your command handler code here
    char szFilter[]="BMP Files (*.bmp)|*.bmp|All Files(*.*)|*.*||";
    CFileDialog dlg( TRUE,"BMP",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,szFilter ); 
    if(dlg.DoModal() == IDOK) 
    { 
        CString strPathName = dlg.GetPathName();   
        imgbasic im(strPathName.GetBuffer(0));
        SetDlgItemText(IDC_OUTPUT,im.getInfo());//输出路径
        im.imshow(pDC,myRECT);
       // MessageBox("ok","hi~",MB_OK);
    } 
    m_image1.ReleaseDC(pDC);
}

imgbasic::imgbasic(char *fn)
{
    strcpy(filepath,fn);
    FILE *mybmp;
    if(mybmp=fopen(filepath,"rb"))//以二进制形式读取
    {
    //    fread(&MyHeader,10,1,mybmp);//位图头文件是14个字节,此处用结构体读入有问题
        fread(&MyHeader.B,1,1,mybmp);
        fread(&MyHeader.M,1,1,mybmp);
        fread(&MyHeader.FileSize,1,4,mybmp);
        fread(&MyHeader.Reserved1,1,4,mybmp);
        fread(&MyHeader.HeaderLength,1,4,mybmp);

        fread(&MyInfo,40,1,mybmp);//位图信息头40个字节
        raw_img=(unsigned char*)malloc(sizeof(unsigned char)*MyInfo.PixelBytes);
        fread(raw_img,MyInfo.PixelBytes,1,mybmp);
        fclose(mybmp);

        //查看raw图像，在ps中设置宽度，高度，通道数量3，隔行，8位
        FILE *f = fopen("t.raw","wb");
        fwrite(raw_img, MyInfo.PixelBytes,1, f);
        fclose(f);
    }
    else{
        AfxMessageBox("CAN‘T OPEN FILE!", MB_OK);
    }
}

void imgbasic::imshow(CDC *pDC, CRect rc)const
{
    SetDIBitsToDevice(                                                //显示图像速度快；
        pDC->m_hDC,
        (rc.Width()-vImageWidth())/2,
        (rc.Height()-vImageHeight())/2,
        vImageWidth(),
        vImageHeight(),
        0,0,0,
        vImageHeight(),
        raw_img,
        (tagBITMAPINFO *)(&MyInfo),
        DIB_RGB_COLORS
    ); 
}
char* imgbasic::getInfo()const
{
    char *info;
    info=(char*)malloc(sizeof(char)*500);
    info[0]=‘\0‘;
//    sprintf(info,"12132\r\n");
//    sprintf(info+7,"aaa\r\n");
    //path
    sprintf(info+strlen(info),"---------path---------\r\n");
    sprintf(info+strlen(info),"FilePath:%s\r\n",filepath);
    //BMPHeader
    sprintf(info+strlen(info),"-------BMPHeader-------\r\n");
    sprintf(info+strlen(info),"FileType:%c %c P\r\n",MyHeader.B,MyHeader.M);
    sprintf(info+strlen(info),"FileSize:%ld bytes\r\n",MyHeader.FileSize);
    sprintf(info+strlen(info),"HeaderLength:%ld \r\n",MyHeader.HeaderLength);
    //BMPFileInfo
    sprintf(info+strlen(info),"------BMPFileInfo------\r\n");
    sprintf(info+strlen(info),"InfoSize:%ld\r\n",MyInfo.InfoSize);
    sprintf(info+strlen(info),"ImageWidth:%ld\r\n",MyInfo.ImageWidth);
    sprintf(info+strlen(info),"ImageHeight:%ld\r\n",MyInfo.ImageHeight);
    sprintf(info+strlen(info),"Height*Width:%ld\r\n",MyInfo.ImageHeight*MyInfo.ImageWidth*3);
    sprintf(info+strlen(info),"Level:%ld\r\n",MyInfo.Level);
    sprintf(info+strlen(info),"PixelBytes:%ld\r\n",MyInfo.PixelBytes);
    sprintf(info+strlen(info),"ColorDepth:%ld\r\n",MyInfo.ColorDepth);
    sprintf(info+strlen(info),"PixelBytes:%ld\r\n",MyInfo.PixelBytes);
    sprintf(info+strlen(info),"Horizon:%ld\r\n",MyInfo.horizon);
    sprintf(info+strlen(info),"Vertical:%ld\r\n",MyInfo.vertical);
    sprintf(info+strlen(info),"ColorUsed:%ld\r\n",MyInfo.offset1);//不知为何显示为0
    sprintf(info+strlen(info),"ColorImportant:%ld\r\n",MyInfo.offset2);//不知为何显示为0

    return info;
}