如何使用 MFC 从文件中加载图像

how to load image from file using MFC(如何使用 MFC 从文件中加载图像)

问题描述

我的浏览按钮代码是

void CFileOpenDlg::OnBnClickedButton1()
{
 // TODO: Add your control notification handler code here
 CFileDialog dlg(TRUE);
 int result=dlg.DoModal();
 if(result==IDOK)
 {
  path=dlg.GetPathName();
  UpdateData(FALSE);
 }
}

这是从资源加载图像的代码，但不适用于从文件加载图像.我知道 LoadImage(); 用于此，但如何?我如何编辑此代码以从文件加载图像.请帮忙.....

and this is the code for loading an image from resource but that does not work for loading an image from file. i know LoadImage(); is used for this but how? how can i edit this code to load image from file. Plzz help.....

void CFileOpenDlg::OnBnClickedButton2()
{
 // TODO: Add your control notification handler code here
CRect r;
CBitmap* m_bitmap;
CDC dc, *pDC;
BITMAP bmp;
m_bitmap = new CBitmap();
m_bitmap->LoadBitmapW(IDB_BITMAP1);
m_bitmap->GetBitmap(&bmp);
pDC = this->GetDC();
dc.CreateCompatibleDC(pDC);
dc.SelectObject(m_bitmap);
pDC->BitBlt(200, 200, bmp.bmWidth, bmp.bmHeight, &dc,0 , 0, SRCCOPY);
m_bitmap->DeleteObject();
m_bitmap->Detach();
}

推荐答案

MSDN 加载图片

HANDLE hBitMap = ::LoadImage(0, "c:\mybmp.bmp",IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
CBitmap bmp;
bmp.Attach((HBITMAP)hBitMap); 

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