我希望在一个dialog上显示一个jpg图片，有没有代码可以参考阿

DentistryDoctor(My heart will fly,in the sky.) 于 2005-9-13 10:17:18

使用IPicture接口。


nkwesley(江南丝竹) 于 2005-9-13 10:38:42

给个函数
HBITMAP CTestDlg::LoadJPG(CString strFileName)
{
IPicture* p=NULL;
IStream* s=NULL;
HGLOBAL hG;
void* pp;
FILE* fp;

// Read file in memory
fp = fopen(strFileName,"rb");
if (!fp)
return NULL;

fseek(fp,0,SEEK_END);
int fs = ftell(fp);
fseek(fp,0,SEEK_SET);
hG = GlobalAlloc(GPTR,fs);
if (!hG)
{
fclose(fp);
return NULL;
}
pp = (void*)hG;
fread(pp,1,fs,fp);
fclose(fp);

CreateStreamOnHGlobal(hG,false,&s);
if (!s)
{
GlobalFree(hG);
return NULL;
}

OleLoadPicture(s,0,false,IID_IPicture,(void**)&p);

if (!p)
{
s->Release();
GlobalFree(hG);
return NULL;
}

s->Release();
GlobalFree(hG);

HBITMAP hB = 0;
p->get_Handle((unsigned int*)&hB);

// Copy the image. Necessary, because upon p''s release,
// the handle is destroyed.
HBITMAP hBB = (HBITMAP)CopyImage( hB,IMAGE_BITMAP,0,0,LR_COPYRETURNORG );

p->Release();
return hBB;
}



nkwesley(江南丝竹) 于 2005-9-13 10:40:27

上面这个函数使用很简单
HBITMAP hbmp;
hbmp = LoadJPG( m_strFilePath );

f( hbmp != NULL)
{
m_bitmap.Detach();
m_bitmap.Attach(hbmp);
}
else
{
TRACE("\\n图像载入失败!");
return;
}



jxgjxgok 于 2005-9-13 10:41:34

用gdi+的Image轻松支持除tga格式以外的很多文件格式

jxgjxgok 于 2005-9-13 11:24:23

CRect rect;
GetClientRect( rect );
Bitmap bmp( rect.Width( ),rect.Height( ) );
Graphics graphics( &bmp );
//CDC* pDC=GetDC( );
Graphics gFont( *pDC );
Image image(L"01.jpg");
graphics.DrawImage( &image,rect.left,rect.top,rect.right,rect.bottom);

gFont.DrawImage( &bmp,rect.left,rect.top,rect.right,rect.bottom );

microyzy(毛毛叉) 于 2005-9-14 15:58:39

嗯，同意GDI＋，多用一个dll而已，却简单得多