LPMETAFILEPICT to CBitmap???
Hany Nabil Morcos -- hnm@sakhr.rite.com
Tuesday, March 04, 1997
[Mini-digest: 2 responses]
Roma wrote:
>
> Hany Nabil Morcos wrote:
> >
> > Environment: VC++ 4.1, Win95
> >
> > Hi all;
> >
> > Could anyone advise how to construct CBitmap from LPMETAFILEPICT (mm,
> > xExt, yExt, hMF).
> >
> > I have tryed to play the metafile on a memory dc, with its mapping mode,
> > but I failed to create a CBitmap object.
> >
> > Thank you in advance.
> >
> > P.S. Please reply to me beside the mailing list. (hnm@sakhr.rite.com)
> If I remember correctly, you have to do the following:
>
> CBitmap bmp;
> CDC MemDCOne;
> CDC MemDCTwo;
>
> MemDCOne.CreateCompatibleDC();
> MemDCTwo.CreateCompatibleDC();
>
> [play your metafile into MemDCOne here]
>
> bmp.CreateCompatibleBitmap(&MemDCTwo, ...< size of you picture> );
>
> CBitmap* pOldBitmap = MemDCTwo.SelectObject(&bmp);
>
> //This is actual copying
> MemDCTwo.BitBlt(0, 0, , &MemDCOne, 0, 0,SRCCOPY);
>
> MemDCTwo.SelectObject(pOldBitmap);
>
> //at this point you have your picture in the bmp object (most
> likely..:)
>
> HTH,
> -Roma
Thank you,
I have tried this solution which seems quite reasonable but with no
success. For testing, I got my LPMETAFILEPICT from pasting from "Paint".
I used NULL CClientDC in both in the upper code, and
in display of the CBitmap afterwords. I even tried to select first a
colored bitmap in the memory DC, as well as setting the mapping mode
from LPMETAFILEPICT. All gave rubbish on the whole screen although I am
using the dimensions in LPMETAFILEPICT in in the
upper code.
Any clues????? Is it OK to play metafiles on a memory DC?????
Regards..
Hany Morcos
-----From: Roma
Hi!
Hany Nabil Morcos wrote:
>Thank you,
>I have tried this solution which seems quite reasonable but with no
>success. For testing, I got my LPMETAFILEPICT from pasting from "Paint".
>I used NULL CClientDC in both in the upper code, and
>in display of the CBitmap afterwords. I even tried to select first a
>colored bitmap in the memory DC, as well as setting the mapping mode
>from LPMETAFILEPICT. All gave rubbish on the whole screen although I am
>using the dimensions in LPMETAFILEPICT in in the
>upper code.
>Any clues????? Is it OK to play metafiles on a memory DC?????
> Regards..
> Hany Morcos
Yes, I'm sorry, I was wrong.
My previous expirience in these bitmaps/memory dcs was related
to direct drawing on the screen. My first example code works fine
if the firstMemDC is client dc of the view.
I've played a bit with these things (well, not a bit - a few hours) and
here is working example:
The heart of the code is KeepMetafile() function.
The main idea of the solution is that you have to create and select
bitmaps in BOTH memDCs.
void CSomeView::KeepMetafile(HGLOBAL mem)
{
CBitmap bmp;
CBitmap *pOB, *pOldBitmap;
CDC MemDCOne;
CDC MemDCTwo;
METAFILEPICT pic;
METAFILEPICT *pPict = (METAFILEPICT *)::GlobalLock(mem);
memcpy(&pic, pPict, sizeof(METAFILEPICT));
GlobalUnlock(mem);
CClientDC dc(this);
MemDCOne.CreateCompatibleDC(&dc);
MemDCTwo.CreateCompatibleDC(&dc);
//when METAFILEPICT.mm member is MM_ANYSOTRPIC
//contains suggested size in the HI_METRIC units
// (and it is when pasting from paintbrush)
//The following is here only to calculate approximate size of the
bitmap
MemDCOne.SetMapMode(MM_HIMETRIC);
CPoint pt(pic.xExt, pic.yExt);
MemDCOne.LPtoDP(&pt, 1);
MemDCOne.SetMapMode(MM_TEXT); //Leave map mode MM_TEXT
//note: pt may contain negative values due to the MM_HIMETRIC mode
//Create TWO bitmaps
bmp.CreateCompatibleBitmap(&MemDCOne, abs(pt.x), abs(pt.y));
m_bmp.CreateCompatibleBitmap(&MemDCTwo, abs(pt.x), abs(pt.y));
//select BOTH bitmaps
pOB = MemDCOne.SelectObject(&bmp);
pOldBitmap = MemDCTwo.SelectObject(&m_bmp);
//do our job
MemDCOne.PlayMetaFile(pic.hMF);
//This is actual copying
MemDCTwo.BitBlt(0, 0, abs(pt.x), abs(pt.y), &MemDCOne, 0,
0,SRCCOPY);
//restore bitmaps
MemDCOne.SelectObject(&pOB);
MemDCTwo.SelectObject(pOldBitmap);
bmp.DeleteObject();
Invalidate();
UpdateWindow();
}
void CSomeView:public CView
{
...
CBitmap m_bmp;
....
};
void CSomeView::OnDraw(CDC* pDC)
{
//Just put m_bmp on the screen:
CRect ScreenArea;
GetClientRect(ScreenArea);
CDC dc;
dc.CreateCompatibleDC(NULL);
CBitmap* pOld = dc.SelectObject(&m_bmp);
pDC->BitBlt(0,0, ScreenArea.Width(), ScreenArea.Height(), &dc, 0,0,
SRCCOPY);
dc.SelectObject(pOld);
}
void CSomeView::OnEditPaste()
{
FORMATETC fmt;
COleDataObject *pDataObject = new COleDataObject();
if(!pDataObject) return;
pDataObject->AttachClipboard();
pDataObject->BeginEnumFormats();
while(pDataObject->GetNextFormat(&fmt))
{
if(fmt.cfFormat==CF_METAFILEPICT)
{
HGLOBAL hMf = pDataObject->GetGlobalData(CF_METAFILEPICT);
if(hMf!=NULL)
{
//in case we are pasting second time
m_bmp.DeleteObject();
KeepMetafile(hMf);
}
}
}
delete pDataObject;
}
HTH,
Roma
Dulepov Dmitry -- dima@ssm6000.samsung.ru
Wednesday, March 05, 1997
[Mailer: "Groupware E-Mail". Version 1.03.000]
> [From: Roma
>
>Hany Nabil Morcos wrote:
>>
>> Environment: VC++ 4.1, Win95
>>
>> Hi all;
>>
>> Could anyone advise how to construct CBitmap from LPMETAFILEPICT (mm,
>> xExt, yExt, hMF).
>>
>> I have tryed to play the metafile on a memory dc, with its mapping mode,
>> but I failed to create a CBitmap object.
>>
>> Thank you in advance.
>>
>> P.S. Please reply to me beside the mailing list. (hnm@sakhr.rite.com)
>If I remember correctly, you have to do the following:
>
> CBitmap bmp;
> CDC MemDCOne;
> CDC MemDCTwo;
>
> MemDCOne.CreateCompatibleDC();
> MemDCTwo.CreateCompatibleDC();
>
> [play your metafile into MemDCOne here]
>
> bmp.CreateCompatibleBitmap(&MemDCTwo, ...< size of you picture> );
>
> CBitmap* pOldBitmap = MemDCTwo.SelectObject(&bmp);
>
> //This is actual copying
> MemDCTwo.BitBlt(0, 0, , &MemDCOne, 0, 0,SRCCOPY);
>
> MemDCTwo.SelectObject(pOldBitmap);
>
> //at this point you have your picture in the bmp object (most
>likely..:)
>
>
>HTH,
>-Roma
This is slightly incorrect. [Don't resent, I just tring to help!]
Initially device context created with 'CreateCompatibleDC()' contains 1x1 pixel monochrome bitmap (read classics -> Petzold). So you won't be able to 'BitBlt()' anything useful from 'MemDCOne'. You need to create a bitmap compatibe with *original* DC (this is important!), select it to 'MemDCOne' and then play your metafile. Then select default bitmap back to 'MemDCOne' and use your bitmap as you want...
Good Luck!
Dmitry A. Dulepov
Software Design Engineer
Samsung Electronics Co., Ltd.
Russian Research Center
E-mail: dima@src.samsung.ru
*** WWW page is coming soon! ***
====================================
Hany Nabil Morcos -- hnmr@sakhr.rite.com
Thursday, March 06, 1997
[Mini-digest: 2 responses]
Roma wrote:
>
> Hany Nabil Morcos wrote:
> >
> > Environment: VC++ 4.1, Win95
> >
> > Hi all;
> >
> > Could anyone advise how to construct CBitmap from LPMETAFILEPICT (mm,
> > xExt, yExt, hMF).
> >
> > I have tryed to play the metafile on a memory dc, with its mapping mode,
> > but I failed to create a CBitmap object.
> >
> > Thank you in advance.
> >
> > P.S. Please reply to me beside the mailing list. (hnm@sakhr.rite.com)
> If I remember correctly, you have to do the following:
>
> CBitmap bmp;
> CDC MemDCOne;
> CDC MemDCTwo;
>
> MemDCOne.CreateCompatibleDC();
> MemDCTwo.CreateCompatibleDC();
>
> [play your metafile into MemDCOne here]
>
> bmp.CreateCompatibleBitmap(&MemDCTwo, ...< size of you picture> );
>
> CBitmap* pOldBitmap = MemDCTwo.SelectObject(&bmp);
>
> //This is actual copying
> MemDCTwo.BitBlt(0, 0, , &MemDCOne, 0, 0,SRCCOPY);
>
> MemDCTwo.SelectObject(pOldBitmap);
>
> //at this point you have your picture in the bmp object (most
> likely..:)
>
> HTH,
> -Roma
Thank you,
I have tried this solution which seems quite reasonable but with no
success. For testing, I got my LPMETAFILEPICT from pasting from "Paint".
I used NULL CClientDC in both in the upper code, and
in display of the CBitmap afterwords. I even tried to select first a
colored bitmap in the memory DC, as well as setting the mapping mode
from LPMETAFILEPICT. All gave rubbish on the whole screen although I am
using the dimensions in LPMETAFILEPICT in in the
upper code.
Any clues????? Is it OK to play metafiles on a memory DC?????
Regards..
Hany Morcos
-----From: Roma
Hi!
Hany Nabil Morcos wrote:
>Thank you,
>I have tried this solution which seems quite reasonable but with no
>success. For testing, I got my LPMETAFILEPICT from pasting from "Paint".
>I used NULL CClientDC in both in the upper code, and
>in display of the CBitmap afterwords. I even tried to select first a
>colored bitmap in the memory DC, as well as setting the mapping mode
>from LPMETAFILEPICT. All gave rubbish on the whole screen although I am
>using the dimensions in LPMETAFILEPICT in in the
>upper code.
>Any clues????? Is it OK to play metafiles on a memory DC?????
> Regards..
> Hany Morcos
Yes, I'm sorry, I was wrong.
My previous expirience in these bitmaps/memory dcs was related
to direct drawing on the screen. My first example code works fine
if the firstMemDC is client dc of the view.
I've played a bit with these things (well, not a bit - a few hours) and
here is working example:
The heart of the code is KeepMetafile() function.
The main idea of the solution is that you have to create and select
bitmaps in BOTH memDCs.
void CSomeView::KeepMetafile(HGLOBAL mem)
{
CBitmap bmp;
CBitmap *pOB, *pOldBitmap;
CDC MemDCOne;
CDC MemDCTwo;
METAFILEPICT pic;
METAFILEPICT *pPict = (METAFILEPICT *)::GlobalLock(mem);
memcpy(&pic, pPict, sizeof(METAFILEPICT));
GlobalUnlock(mem);
CClientDC dc(this);
MemDCOne.CreateCompatibleDC(&dc);
MemDCTwo.CreateCompatibleDC(&dc);
//when METAFILEPICT.mm member is MM_ANYSOTRPIC
//contains suggested size in the HI_METRIC units
// (and it is when pasting from paintbrush)
//The following is here only to calculate approximate size of the
bitmap
MemDCOne.SetMapMode(MM_HIMETRIC);
CPoint pt(pic.xExt, pic.yExt);
MemDCOne.LPtoDP(&pt, 1);
MemDCOne.SetMapMode(MM_TEXT); //Leave map mode MM_TEXT
//note: pt may contain negative values due to the MM_HIMETRIC mode
//Create TWO bitmaps
bmp.CreateCompatibleBitmap(&MemDCOne, abs(pt.x), abs(pt.y));
m_bmp.CreateCompatibleBitmap(&MemDCTwo, abs(pt.x), abs(pt.y));
//select BOTH bitmaps
pOB = MemDCOne.SelectObject(&bmp);
pOldBitmap = MemDCTwo.SelectObject(&m_bmp);
//do our job
MemDCOne.PlayMetaFile(pic.hMF);
//This is actual copying
MemDCTwo.BitBlt(0, 0, abs(pt.x), abs(pt.y), &MemDCOne, 0,
0,SRCCOPY);
//restore bitmaps
MemDCOne.SelectObject(&pOB);
MemDCTwo.SelectObject(pOldBitmap);
bmp.DeleteObject();
Invalidate();
UpdateWindow();
}
void CSomeView:public CView
{
...
CBitmap m_bmp;
....
};
void CSomeView::OnDraw(CDC* pDC)
{
//Just put m_bmp on the screen:
CRect ScreenArea;
GetClientRect(ScreenArea);
CDC dc;
dc.CreateCompatibleDC(NULL);
CBitmap* pOld = dc.SelectObject(&m_bmp);
pDC->BitBlt(0,0, ScreenArea.Width(), ScreenArea.Height(), &dc, 0,0,
SRCCOPY);
dc.SelectObject(pOld);
}
void CSomeView::OnEditPaste()
{
FORMATETC fmt;
COleDataObject *pDataObject = new COleDataObject();
if(!pDataObject) return;
pDataObject->AttachClipboard();
pDataObject->BeginEnumFormats();
while(pDataObject->GetNextFormat(&fmt))
{
if(fmt.cfFormat==CF_METAFILEPICT)
{
HGLOBAL hMf = pDataObject->GetGlobalData(CF_METAFILEPICT);
if(hMf!=NULL)
{
//in case we are pasting second time
m_bmp.DeleteObject();
KeepMetafile(hMf);
}
}
}
delete pDataObject;
}
HTH,
Roma
Well, I have tried this also, I even created an appwizard skeleton, I
inserted in the View, the Keepmetafile method, and added the CBitmap
member, as well as the implementation of OnDraw and OnEditPAste. All cut
and paste from the above code. Finally I tried to paste in the
application an image from "Paint" but it just gave me a black box of the
image size.
What do you think???
Hany Morcos
-----From: Roma
Hany Nabil Morcos wrote:
[snip]
>
> Well, I have tried this also, I even created an appwizard skeleton, I
> inserted in the View, the Keepmetafile method, and added the CBitmap
> member, as well as the implementation of OnDraw and OnEditPAste. All cut
> and paste from the above code. Finally I tried to paste in the
> application an image from "Paint" but it just gave me a black box of the
> image size.
> What do you think???
>
> Hany Morcos
Hi!
I've found the reason why my example shows you in the Win95
just black box - the problem is that the bitmaps I'm using in the
code are all monochrome, but the metafile, pasted from the
Paint/Paintbrush
is colored. BitBlt converts colored bitmaps to monochrome just
converting
all not-white pixels to black and leaving white bits white (see help for
BitBlt).
NT's Paintbrush make background really white, but Paint doesn't.
To see that BitBlt for memory DC's works correct, change OnEditPaste in
my example to this
function, which creates metafile with really white background.
(I've checked this under Windows95 this time - it works)
Metafile creation code was taken from:
Creating Metafiles to Use with OLE Applications PSS id#: Q83023
void CSomeView::OnEditPaste()
{
COleDataObject *pDataObject = new COleDataObject();
HMETAFILE comp;
HDC mfdc = CreateMetaFile(NULL);
::SetMapMode(mfdc, MM_ANISOTROPIC);
//Do some drawing, in which important is filling rect with white brush
HBRUSH whiteBrush = CreateSolidBrush(RGB(255, 255, 255));
CRect rect(0,0,100,100);
::FillRect(mfdc, &rect, whiteBrush);
DeleteObject(whiteBrush);
//Just to see something on the screen
::MoveToEx(mfdc, 0, 0, NULL);
::LineTo(mfdc, 100, 100);
comp = CloseMetaFile(mfdc);
LPMETAFILEPICT lpMFP;
POINT pt;
HDC hDC;
HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
sizeof(METAFILEPICT));
lpMFP = (LPMETAFILEPICT)GlobalLock(hMem);
pt.x = 100;
pt.y = 100;
//Convert coordinates in HIMETRIC mode
hDC = ::GetDC(this->m_hWnd);
int oldMapMode = SetMapMode(hDC, MM_HIMETRIC);
DPtoLP(hDC, &pt, 1);
SetMapMode(hDC, oldMapMode);
::ReleaseDC(this->m_hWnd, hDC);
lpMFP->mm = MM_ANISOTROPIC;
lpMFP->xExt = pt.x;
lpMFP->yExt = pt.y;
lpMFP->hMF = comp;
GlobalUnlock(hMem);
if(comp==NULL)
MessageBeep(0);
else
{
m_bmp.DeleteObject();
KeepMetafile(hMem);
}
GlobalFree(hMem);
DeleteMetaFile(comp);
delete pDataObject;
}
-Roma
Hany Nabil Morcos -- hnm@sakhr.rite.com
Tuesday, March 11, 1997
Environment: VC++ 4.1, Win95
Hi all;
Could anyone advise how to construct CBitmap from LPMETAFILEPICT (mm,
xExt, yExt, hMF).
I have tryed to play the metafile on a memory dc, with its mapping mode,
but I failed to create a CBitmap object.
Thank you in advance.
P.S. Please reply to me beside the mailing list. (hnm@sakhr.rite.com)
Hany Morcos
************************************************************
Roma Wrote:
If I remember correctly, you have to do the following:
CBitmap bmp;
CDC MemDCOne;
CDC MemDCTwo;
MemDCOne.CreateCompatibleDC();
MemDCTwo.CreateCompatibleDC();
[play your metafile into MemDCOne here]
bmp.CreateCompatibleBitmap(&MemDCTwo, ...< size of you picture> );
CBitmap* pOldBitmap = MemDCTwo.SelectObject(&bmp);
//This is actual copying
MemDCTwo.BitBlt(0, 0, , &MemDCOne, 0, 0,SRCCOPY);
MemDCTwo.SelectObject(pOldBitmap);
//at this point you have your picture in the bmp object (most
likely..:)
HTH,
-Roma
************************************************************
Hany Nabil Morcos wrote:
Hi!
Thank you,
I have tried this solution which seems quite reasonable but with no
success. For testing, I got my LPMETAFILEPICT from pasting from "Paint".
I used NULL CClientDC in both in the upper code, and
in display of the CBitmap afterwords. I even tried to select first a
colored bitmap in the memory DC, as well as setting the mapping mode
from LPMETAFILEPICT. All gave rubbish on the whole screen although I am
using the dimensions in LPMETAFILEPICT in in the
upper code.
Any clues????? Is it OK to play metafiles on a memory DC?????
Regards..
Hany Morcos
************************************************************
Roma Wrote
Yes, I'm sorry, I was wrong.
My previous expirience in these bitmaps/memory dcs was related
to direct drawing on the screen. My first example code works fine
if the firstMemDC is client dc of the view.
I've played a bit with these things (well, not a bit - a few hours) and
here is working example:
The heart of the code is KeepMetafile() function.
The main idea of the solution is that you have to create and select
bitmaps in BOTH memDCs.
void CSomeView::KeepMetafile(HGLOBAL mem)
{
CBitmap bmp;
CBitmap *pOB, *pOldBitmap;
CDC MemDCOne;
CDC MemDCTwo;
METAFILEPICT pic;
METAFILEPICT *pPict = (METAFILEPICT *)::GlobalLock(mem);
memcpy(&pic, pPict, sizeof(METAFILEPICT));
GlobalUnlock(mem);
CClientDC dc(this);
MemDCOne.CreateCompatibleDC(&dc);
MemDCTwo.CreateCompatibleDC(&dc);
//when METAFILEPICT.mm member is MM_ANYSOTRPIC
//contains suggested size in the HI_METRIC units
// (and it is when pasting from paintbrush)
//The following is here only to calculate approximate size of the
bitmap
MemDCOne.SetMapMode(MM_HIMETRIC);
CPoint pt(pic.xExt, pic.yExt);
MemDCOne.LPtoDP(&pt, 1);
MemDCOne.SetMapMode(MM_TEXT); //Leave map mode MM_TEXT
//note: pt may contain negative values due to the MM_HIMETRIC mode
//Create TWO bitmaps
bmp.CreateCompatibleBitmap(&MemDCOne, abs(pt.x), abs(pt.y));
m_bmp.CreateCompatibleBitmap(&MemDCTwo, abs(pt.x), abs(pt.y));
//select BOTH bitmaps
pOB = MemDCOne.SelectObject(&bmp);
pOldBitmap = MemDCTwo.SelectObject(&m_bmp);
//do our job
MemDCOne.PlayMetaFile(pic.hMF);
//This is actual copying
MemDCTwo.BitBlt(0, 0, abs(pt.x), abs(pt.y), &MemDCOne, 0,
0,SRCCOPY);
//restore bitmaps
MemDCOne.SelectObject(&pOB);
MemDCTwo.SelectObject(pOldBitmap);
bmp.DeleteObject();
Invalidate();
UpdateWindow();
}
void CSomeView:public CView
{
...
CBitmap m_bmp;
....
};
void CSomeView::OnDraw(CDC* pDC)
{
//Just put m_bmp on the screen:
CRect ScreenArea;
GetClientRect(ScreenArea);
CDC dc;
dc.CreateCompatibleDC(NULL);
CBitmap* pOld = dc.SelectObject(&m_bmp);
pDC->BitBlt(0,0, ScreenArea.Width(), ScreenArea.Height(), &dc, 0,0,
SRCCOPY);
dc.SelectObject(pOld);
}
void CSomeView::OnEditPaste()
{
FORMATETC fmt;
COleDataObject *pDataObject = new COleDataObject();
if(!pDataObject) return;
pDataObject->AttachClipboard();
pDataObject->BeginEnumFormats();
while(pDataObject->GetNextFormat(&fmt))
{
if(fmt.cfFormat==CF_METAFILEPICT)
{
HGLOBAL hMf = pDataObject->GetGlobalData(CF_METAFILEPICT);
if(hMf!=NULL)
{
//in case we are pasting second time
m_bmp.DeleteObject();
KeepMetafile(hMf);
}
}
}
delete pDataObject;
}
HTH,
Roma
************************************************************
Hany Nabil Morcos wrote:
Well, I have tried this also, I even created an appwizard skeleton, I
inserted in the View, the Keepmetafile method, and added the CBitmap
member, as well as the implementation of OnDraw and OnEditPAste. All
cut
and paste from the above code. Finally I tried to paste in the
application an image from "Paint" but it just gave me a black box of
the
image size.
What do you think???
Hany Morcos
************************************************************
Roma wrote:
Ooops. My apologizes again - I forgot you have win95. In my NT 3.51 it
works fine.
I though that code written with MFC should work on all win32 platforms
(especially
things that are present in the Windows from v2.x).
The problem is somewhere in the mapping modes and correct coordinates,
I think.
-Roma
P.S. I hate Windows95
************************************************************
Roma Wrote
Hi!
I've found the reason why my example shows you in the Win95
just black box - the problem is that the bitmaps I'm using in the
code are all monochrome, but the metafile, pasted from the
Paint/Paintbrush
is colored. BitBlt converts colored bitmaps to monochrome just
converting
all not-white pixels to black and leaving white bits white (see help for
BitBlt).
NT's Paintbrush make background really white, but Paint doesn't.
To see that BitBlt for memory DC's works correct, change OnEditPaste in
my example to this
function, which creates metafile with really white background.
(I've checked this under Windows95 this time - it works)
Metafile creation code was taken from:
Creating Metafiles to Use with OLE Applications PSS id#: Q83023
void CSomeView::OnEditPaste()
{
COleDataObject *pDataObject = new COleDataObject();
HMETAFILE comp;
HDC mfdc = CreateMetaFile(NULL);
::SetMapMode(mfdc, MM_ANISOTROPIC);
//Do some drawing, in which important is filling rect with white brush
HBRUSH whiteBrush = CreateSolidBrush(RGB(255, 255, 255));
CRect rect(0,0,100,100);
::FillRect(mfdc, &rect, whiteBrush);
DeleteObject(whiteBrush);
//Just to see something on the screen
::MoveToEx(mfdc, 0, 0, NULL);
::LineTo(mfdc, 100, 100);
comp = CloseMetaFile(mfdc);
LPMETAFILEPICT lpMFP;
POINT pt;
HDC hDC;
HGLOBAL hMem = GlobalAlloc(GMEM_MOVEABLE | GMEM_SHARE,
sizeof(METAFILEPICT));
lpMFP = (LPMETAFILEPICT)GlobalLock(hMem);
pt.x = 100;
pt.y = 100;
//Convert coordinates in HIMETRIC mode
hDC = ::GetDC(this->m_hWnd);
int oldMapMode = SetMapMode(hDC, MM_HIMETRIC);
DPtoLP(hDC, &pt, 1);
SetMapMode(hDC, oldMapMode);
::ReleaseDC(this->m_hWnd, hDC);
lpMFP->mm = MM_ANISOTROPIC;
lpMFP->xExt = pt.x;
lpMFP->yExt = pt.y;
lpMFP->hMF = comp;
GlobalUnlock(hMem);
if(comp==NULL)
MessageBeep(0);
else
{
m_bmp.DeleteObject();
KeepMetafile(hMem);
}
GlobalFree(hMem);
DeleteMetaFile(comp);
delete pDataObject;
}
-Roma
****************************************************************
Well Ladies and Gentelemen;
Does this mean I can not convert pasted colored LPMETAFILEPICT from Win
95 Paint to
CBitmap???????????????????????????????????????????????????????
Help!!!!!!!!!!!!
Hany Morcos
Become an MFC-L member
| Вернуться в корень Архива
|