ich lade eine Binaere Datei folgendermassen:

Code :

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bool CImageHandler::BuildImageMatrix(std::vector<CString> fList,CString srcpath) {  std::vector<CString>::iterator fIterator;  CString fName;  CStringA anssrcpath(srcpath);  FILE* fPointer=NULL;  size_t result;  int count=0,i=372;  unsigned __int8 buffer[BUFFERLENGTH];    for(fIterator=fList.begin(); fIterator!=fList.end(); fIterator++)   {     fName=*fIterator;     if(fName.Right(3)=="ptd")   {  CStringA ansfName(fName);  errno_t err;  //load file in binary mode  err=fopen_s(&fPointer,anssrcpath+ansfName,"rb");  if(fPointer==NULL)   {     MessageBox(/*NULL,*/_T("File: ")+srcpath+fName+_T(" is invalid!"),_T("Error"),MB_ICONERROR|MB_OK);     return false;   }              // copy the file into the buffer:  fgetc(fPointer);  result=fread(buffer,sizeof(unsigned __int8),BUFFERLENGTH,fPointer);  // terminate  fclose(fPointer);  if(!CreateBitmapFromArray(buffer))   {     free(buffer);     return false;   } }         }  return true; }

Dann mach ich Folgendes:

Code :

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bool CImageHandler::CreateBitmapFromArray(unsigned __int8 buf[]) {  CPaintDC dc(AfxGetMainWnd()); // device context for painting      DWORD dwBits= (DWORD)buf;    BITMAPINFO bmi;  bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);  bmi.bmiHeader.biWidth = 4;  bmi.bmiHeader.biHeight = 4;  bmi.bmiHeader.biPlanes = 1;  bmi.bmiHeader.biBitCount = 32;  bmi.bmiHeader.biCompression = BI_RGB;  bmi.bmiHeader.biSizeImage = 0;  bmi.bmiHeader.biXPelsPerMeter = 0;  bmi.bmiHeader.biYPelsPerMeter = 0;  bmi.bmiHeader.biClrUsed = 0;  bmi.bmiHeader.biClrImportant = 0;    CBitmap bitmap;  bitmap.CreateCompatibleBitmap(&dc,4,4);  ::SetDIBits(dc.m_hDC,bitmap,0,4,&dwBits,&bmi,DIB_RGB_COLORS);  CDC dcMemory;  dcMemory.CreateCompatibleDC(&dc);  CBitmap * pOldBitmap = dcMemory.SelectObject(&bitmap);  dc.BitBlt(0, 0, 4, 4, &dcMemory, 0, 0, SRCCOPY);  dcMemory.SelectObject(pOldBitmap);   return true; }

Die Klasse Imagehandler ist abgeleitet von CDialog.

Wie stelle ich nun die Bitmapdatei auf meinem Dialog dar?
Gibt es da einfachere, fuer Anfaenger wie mich, verstaendlichere Wege?
Fuer allgemeine, konstruktive Kritik was den Code angeht waehre ich auch dankbar .

Gruss Christian

Hi ich hab grad nicht viel zeit und hab mir deinen Code nicht angeschaut, aber will dennoch helfen
Deine Frage ist in einem MFC Dialog ein Bitmap zu zeichnen?

Dann nimm die folgende Klasse und erzeuge dir eine PictureBox und nutze diese Klasse:

PictureBox.h

Code :

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#pragma once   class PictureBox : public CStatic {       DECLARE_DYNAMIC(PictureBox)   public:     PictureBox(void);     virtual ~PictureBox(void);     void SetBitmap(CString strBitmap);       protected:         DECLARE_MESSAGE_MAP()         void ShowBitmap(CPaintDC *pDC);           CString m_sBitmap;         CBitmap m_bmpBitmap;         BITMAP bm;     public:         afx_msg void OnPaint(); };

PictureBox.cpp

Code :

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#include "StdAfx.h" #include "PictureBox.h"   IMPLEMENT_DYNAMIC(PictureBox, CStatic)     PictureBox::PictureBox()   {       m_sBitmap = ""; }         PictureBox::~PictureBox()   {   }           BEGIN_MESSAGE_MAP(PictureBox, CStatic)         ON_WM_PAINT()   END_MESSAGE_MAP()               // PictureBox message handlers       void PictureBox::ShowBitmap(CPaintDC *pdc)     {         //Create a device context to load the bitmap into         CDC dcMem;         dcMem.CreateCompatibleDC(pdc);           //Get the Display area available         CRect lRect;         GetClientRect(lRect);         lRect.NormalizeRect();           //select the bitmap into compatible device context         CBitmap* pOldBitmap = (CBitmap*)dcMem.SelectObject(&m_bmpBitmap);         //m_bmpBitmap.SetBitmapDimension(lRect.Width(),lRect.Height());               //copy & resize the window to the dialog window         pdc->StretchBlt(0,0,lRect.Width(),lRect.Height(),&dcMem,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);   }   void PictureBox::OnPaint()   {         CPaintDC dc(this);     // device context for painting           RECT rect;         GetClientRect(&rect);         dc.FillSolidRect(&rect, RGB(255,255,255));           if(m_sBitmap!="")             ShowBitmap(&dc);   }     void PictureBox::SetBitmap(CString strBitmap)   {         m_sBitmap = strBitmap;           HBITMAP hBitmap = (HBITMAP) ::LoadImage(AfxGetInstanceHandle(),             m_sBitmap, IMAGE_BITMAP, 0, 0,             LR_LOADFROMFILE | LR_CREATEDIBSECTION);           // Do we have a valid handle for the loaded image?         if (hBitmap)         {             // Delete the current bitmap             if (m_bmpBitmap.DeleteObject())                     m_bmpBitmap.Detach();         // If there was a bitmap, detach it             // Attach the currently loaded bitmap to the bitmap object             m_bmpBitmap.Attach(hBitmap);         }    m_bmpBitmap.GetBitmap(&bm);       //Get Bitmap Structure         Invalidate(); }

Viel Spass damit
Wenn du fragen hast, dann frag einfach.

Liebe grüße
RuFF