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Rotation of Metafile or page rotation

Posted on 1997-07-14
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Last Modified: 2013-11-20
I have a metafile which has to be printed as landscape.   I have the choice of rotating the metafile or rotating the page to fit.  

Can anyone help me?

(p.s. The pages preceding and following are to be in portrait mode)
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Question by:alistair
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8 Comments
 
LVL 4

Expert Comment

by:tflai
ID: 1302562
Interesting, it seems that a lot of people are puzzled
in changing printer default without user having to
manually change it.  I had the same problem before.
I do have a little trick to imitate the effect of
user changing printer setting.  In member function
CYourApp::OnInitInstance(), add the following:

  CPrintDialog pd(TRUE);
  CWinApp::UpdatePrinterSelection(FALSE);
  pd.m_pd.hDevMode = m_hDevMode;
  LPDEVMODE DevMode = pd.GetDevMode();
  DevMode->dmOrientation = DMORIENT_LANDSCAPE;

Here, I make my MSVC application to start out
with landscape orientation regardless of what the
default printer setting is.
0
 

Author Comment

by:alistair
ID: 1302563
I have already tried this solution but find that the printer becomes set to landscape for all pages sent to it.   My problem is to print page 1 in portrait, page 2 in landscape and page 3 in portrait.
0
 
LVL 1

Expert Comment

by:pcs071997
ID: 1302564
you can use GetEnhMetaFileHeader(..).check the rclBounds or rclFrame. and setting printer
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Author Comment

by:alistair
ID: 1302565
The code I use at present is:
///////////////////////
// co-ordinates of rectangle within which metafile is to be printed
left = 4000;
right = 26800;
top1 = -4900;
bottom1 = -17350;

if(!printout)  // To Screen  draws on a landscape dialog box
 rectangle.SetRect(0,0,emh.rclFrame.right,emh.rclFrame.bottom);
else // to printer  
 rectangle.SetRect(left,top1,right,bottom1);

pDC->PlayMetaFile(metahandle, LPCRECT(rectangle));
////////////////////////

It is important that the aspect ratio is retained as the metafiles are drawings of rotating equipment (i.e. circles)
0
 

Author Comment

by:alistair
ID: 1302566
Adjusted points to 200
0
 

Expert Comment

by:tflex
ID: 1302567
If you want to rotate metafile, use 'SetWorldTransform' function.
But it will work only under NT. Here is a piece of my code:


          .......
          double si = sin (angle/180*M_PI);
          double co = cos (angle/180*M_PI);
          XFORM xform;
         
          xform.eM11 = (float) co;
          xform.eM12 = (float) -si;
          xform.eM21 = (float) si;
          xform.eM22 = (float) co;
          xform.eDx = (float)  0.;
          xform.eDy = (float) 0.;
          .......

          SetViewportOrgEx (pdc->GetSafeHdc (), p.x, p.y, &origin);
         
          SetGraphicsMode (pdc->GetSafeHdc (),GM_ADVANCED);
          SetWorldTransform(pdc->GetSafeHdc (), &xform);
         
          if (pdc->PlayMetaFile( ghMetaf, (LPRECT) &rc))
            {
            char    text[128];
           
            wsprintf(text, "Fail in PlayEnhMetaFile! Error %ld\n", GetLastError());
            OutputDebugString(text);
            }
         
          ModifyWorldTransform(pdc->GetSafeHdc (), NULL, MWT_IDENTITY);
          SetGraphicsMode (pdc->GetSafeHdc (), GM_COMPATIBLE);
          SetViewportOrgEx (pdc->GetSafeHdc (), origin.x, origin.y, &p);
      ......
0
 

Author Comment

by:alistair
ID: 1302568
Sorry, the application must run under windows 95
0
 
LVL 10

Accepted Solution

by:
RONSLOW earned 200 total points
ID: 1302569
Use  EnumEnhMetaFile to read your metafile one record at a time.  Apply transforms to the points as approriate for each record, swapping x and y values for all points.  You can either syntheses the action yourself, or try copying to another metafile with the swapped points and then playing that metafile back.

It's not nice - but should work :-)

Roger

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