Load Bitmap from file to doc

Amin Abdi

HBITMAP hBitmap = 0;
hBitmap = (HBITMAP)LoadImage( NULL,
pDoc->cInfo.strContractBrand, //file location
IMAGE_BITMAP,
0,
0,
LR_LOADFROMFILE | LR_DEFAULTSIZE);
CBitmap Bitmap;
Bitmap.Attach( hBitmap );

BITMAP BitmapInfo = { 0 };
Bitmap.GetBitmap( &BitmapInfo );

DWORD BitmapImageSize = BitmapInfo.bmHeight \*
	BitmapInfo.bmWidth \*
	( BitmapInfo.bmBitsPixel / 8 );

BYTE\* pBitmapData = new BYTE\[ BitmapImageSize \];
ZeroMemory( pBitmapData, BitmapImageSize );

Bitmap.SetBitmapBits(BitmapImageSize, pBitmapData);

Bitmap.SetBitmapBits( BitmapImageSize, pBitmapData );

pDC->SelectObject(&Bitmap);
pDC->BitBlt(1280, -1765, 390,  -230, pDC, // pDC : a CDC pointer to document (SDI Program)
0, 0, SRCCOPY);

delete pBitmapData;
pBitmapData = 0;

purpose: i want to load a bitmap from file and insert in document. the file location is in C..Doc and PDoc is pointer to its document. MapMode is MM_LOMETRIC. problem: it dosen't show anything.:mad::confused: i don't see anything in desired coordinate and print blank page. notice: i find these codes in web and didn't work with CBitmap class. even didn't use bitmap in my programs.

Cedric Moonen

Your question is very unclear. What is this document you are talking about ? The document class from an SDI app ? If yes, a document class is not something visible, it is supposed to be data only. Are you talking about the view ? Furthermore, what is this pDC you are using in your code snippet ? Where did you put this code ?

Cédric Moonen Software developer
Charting control [v2.0] OpenGL game tutorial in C++

CPallini

Amin.Abdi wrote:

pDC->BitBlt(1280, -1765, 390, -230, pDC, // pDC : a CDC pointer to document (SDI Program) 0, 0, SRCCOPY);

What is the purpose of bit-blitting from pDC to pDC itself?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Amin Abdi

sry forget it the code is in C..View and pdc defined there. program is SDI

Amin Abdi

dcMem.SelectObject(&Bitmap);
pDC->BitBlt(1280, nYposChange-1765, 390, -230, &dcMem, 0, 0, SRCCOPY);

fixed but still nothing :(

CPallini

What's the purtpose of a negative height? :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Amin Abdi

;P because of MapMode

modified on Wednesday, August 26, 2009 4:45 AM

CPallini · modified on Wednesday, August 26, 2009 4:45 AM

And why do you need the following statements?

Amin.Abdi wrote:

BYTE* pBitmapData = new BYTE[ BitmapImageSize ]; ZeroMemory( pBitmapData, BitmapImageSize ); Bitmap.SetBitmapBits(BitmapImageSize, pBitmapData); Bitmap.SetBitmapBits( BitmapImageSize, pBitmapData );

:) The last line is because you don't trust MFC? :rolleyes:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Amin Abdi

I change my codes : remove that statement and add these:

CClientDC dcMem;
dcMem.SelectObject(&Bitmap);
pDC->BitBlt(1280, nYposChange-1995, 390, 230, &dcMem, 0, 0, SRCCOPY);

but it show a print screen of window and print nothing. WHY and how can i fix it?

CPallini

You should put your drawing code inside the CView::OnDraw method. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Amin Abdi

i put it on a function and call the function in C..View::OnDraw.

CPallini

I would do this test:

CDC memDC;
memDC.CreateCompatibleDC(pDC);
dcMem.SelectObject(&Bitmap);
pDC->BitBlt(0, 0, 390, 230, &dcMem, 0, 0, SRCCOPY);

:)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Amin Abdi

THANX :rose:

CPallini

You are welcome. As about negative height, when you should make something work, I suggest the 'stay simple' principle: start trying with 'fail-proof' parameters and then, when it works a bit, began to change.. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]