C / C++ / MFC

mikobi1-Aug-06 3:51

1-Aug-06 3:51

Excuse me, i was create CFormView instead of CDialog.
Now I coorect it, no compilation error but in execution, they ask me PrintExtension.dll. I don't see this file because i have only PrintExtensiond.lib(PrintExtensiond.dll).

mikobi18-Aug-06 5:21

18-Aug-06 5:21

Dear Sir,

Using PrintExtension library, how can I have print preview in Landscape ?

I learn My self

mikobi18-Aug-06 19:02

18-Aug-06 19:02

Using PrintExtension LIB to do printPreview, how can I Do preview in LANDSCAP orientation ?

Christopher Stratmann21-Aug-06 0:05

21-Aug-06 0:05

I was unable to figure this out with http://www.codeproject.com/printing/printextension.asp[^]. This was a big problem for me because I need this functionality to work. So what I did was write everything into a dc in memory and then found some functionality to rotate the dc 90 degrees. After rotating it 90 degrees I was then showed the print preview. Even though the print preview was still showing portrait everything was rotated 90 degress so it was really landscape.

I know this seems pretty complicated and it was. Like I said I had to make this functionality work....and I did. It just took a lot of work.

Chris

mikobi21-Aug-06 6:06

21-Aug-06 6:06

Please Sir,
Would you like to send me also those codes. What you have write exactly.

Christopher Stratmann21-Aug-06 6:27

21-Aug-06 6:27

After you are finished with you dc select in an empty CBitmap. This will return the current dc as a CBitmap. Like this....

CBitmap* bm = memDC.SelectObject(oldbm);

Now you can get the HBitmap out of the CBitmap like this.....

HBITMAP hbitmap = (HBITMAP)bm->m_hObject;

Now take the hbitmap and place it into the following function to rotate it...and there you go. You can put the hbitmap back into a CBitmap and then place it on the DC before you do a print preview.

bool HBITMAPRotate										(HBITMAP& hBitmap,
														 float radians,
														 COLORREF clrBack,
														 CErrorHandler& eh)
{
	// Create a memory DC compatible with the display
	CDC sourceDC;
	CDC destDC;
	if (sourceDC.CreateCompatibleDC(NULL) == FALSE)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_CREATECOMPATIBLEDC).c_str());
		return false;
	}
	if (destDC.CreateCompatibleDC(NULL) == FALSE)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_CREATECOMPATIBLEDC).c_str());
		return false;
	}

	// Get logical coordinates
	BITMAP bm;
	if (GetObject(hBitmap,sizeof(bm),&bm) == 0)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_GETOBJECT_HBITMAP).c_str());
		return false;
	}

	float cosine = (float)cos(radians);
	float sine = (float)sin(radians);

	// Compute dimensions of the resulting bitmap
	// First get the coordinates of the 3 corners other than origin
	int x1 = (int)(bm.bmHeight * sine);
	int y1 = (int)(bm.bmHeight * cosine);
	int x2 = (int)(bm.bmWidth * cosine + bm.bmHeight * sine);
	int y2 = (int)(bm.bmHeight * cosine - bm.bmWidth * sine);
	int x3 = (int)(bm.bmWidth * cosine);
	int y3 = (int)(-bm.bmWidth * sine);

	int minx = min(0,min(x1, min(x2,x3)));
	int miny = min(0,min(y1, min(y2,y3)));
	int maxx = max(0,max(x1, max(x2,x3)));
	int maxy = max(0,max(y1, max(y2,y3)));

	int w = maxx - minx;
	int h = maxy - miny;

	// Create a bitmap to hold the result
	HBITMAP hbmResult = ::CreateCompatibleBitmap(CClientDC(NULL), w, h);
	if (hbmResult == NULL)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_CREATECOMPATIBLEBITMAP).c_str());
		return false;
	}

	HBITMAP hbmOldSource = (HBITMAP)::SelectObject( sourceDC.m_hDC, hBitmap );
	HBITMAP hbmOldDest = (HBITMAP)::SelectObject( destDC.m_hDC, hbmResult );

	// Draw the background color before we change mapping mode
	HBRUSH hbrBack = CreateSolidBrush( clrBack );
	if (hbrBack == NULL)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_CREATESOLIDBRUSH).c_str());
		return false;
	}
	HBRUSH hbrOld = (HBRUSH)::SelectObject( destDC.m_hDC, hbrBack );
	if (destDC.PatBlt(0,0,w,h,PATCOPY) == FALSE)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_PATBIT).c_str());
		return false;
	}

	::DeleteObject( ::SelectObject( destDC.m_hDC, hbrOld ) );

	// We will use world transform to rotate the bitmap
	SetGraphicsMode(destDC.m_hDC, GM_ADVANCED);
	XFORM xform;
	xform.eM11 = cosine;
	xform.eM12 = -sine;
	xform.eM21 = sine;
	xform.eM22 = cosine;
	xform.eDx = (float)-minx;
	xform.eDy = (float)-miny;

	if (SetWorldTransform(destDC.m_hDC,&xform) == FALSE)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_SETWORLDTRANSFORM).c_str());
		return false;
	}

	// Now do the actual rotating - a pixel at a time
	if (destDC.BitBlt(0,0,bm.bmWidth,bm.bmHeight,&sourceDC,0,0,SRCCOPY) == FALSE)
	{
		eh.Initialize();
		eh.Set(__FUNCTION__,__FILE__,__LINE__,EHTYPE_ERROR,LoadStringFromDLL(IDS_ERROR_BITBLT).c_str());
		return false;
	}

	// Restore DCs
	::SelectObject( sourceDC.m_hDC, hbmOldSource );
	::SelectObject( destDC.m_hDC, hbmOldDest );

	hBitmap = hbmResult;
	return true;
}

Chris

mikobi21-Aug-06 6:11

21-Aug-06 6:11

Please Sir,
Would you like to send me also those codes. What you have write exactly.

The second problem is that if what to print is more than one page, to click on Next button on print screen change only the page number but data stay the some,what to do.
Because me I do excatly the some that on this article that you show me.

Christopher Stratmann21-Aug-06 6:18

21-Aug-06 6:18

For your second problem did you read all the comments below the article? The are updates that you need to put into the code that are in the comments....Here is an example of a comment that shows an update that you need to apply to the code.http://www.codeproject.com/printing/printextension.asp?df=100&forumid=13691&mpp=50&select=378981#xx378981xx[^] If this doesn't work please try to explain the second problem again...

Chris

CString to unsigned long

RajiRaghu31-Jul-06 23:01

RajiRaghu

31-Jul-06 23:01

Hi,
Can you please suggest some alternative to do the following?
I want to convert a time values Cstring to unsigned long.

Done the following:-
CTime time1("20060708121212"); // Time as CSting format as a CString variable
char *pEnd;
unsigned long ultime = strtoul(time1,&pEnd,0);

But the CString is not converted correctly to unsigned long.
Is there any other solutions please.

Thanks

Thanks
Raji

toxcct31-Jul-06 23:13

toxcct

31-Jul-06 23:13

maximum value an unsigned long can store is 4 294 967 296.

you try to insert a bigger valu in it, so the behavior is not what you expect...

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

Christopher Stratmann1-Aug-06 0:01

1-Aug-06 0:01

Try __int64 for storing big numbers.

Chris

toxcct1-Aug-06 0:04

toxcct

1-Aug-06 0:04

chris175 wrote:
Try __int64 for storing big numbers.

1. i'm not the OP
2. __int64 is not a portable solution

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

RajiRaghu1-Aug-06 1:38

RajiRaghu

1-Aug-06 1:38

Is there any alternate way?

Thanks
Raji

toxcct1-Aug-06 2:10

toxcct

1-Aug-06 2:10

RajiRaghu wrote:
Is there any alternate way?

not standard one...

otherwise, find a bigger type library.

TOXCCT >>> GEII power

[VisualCalc 3.0 updated ][Flags Beginner's Guide new! ]

David Crow1-Aug-06 3:22

David Crow

1-Aug-06 3:22

RajiRaghu wrote:
CTime time1("20060708121212");

This is not possible. Your compiler should have indicated such. Try:

CString strTime("4294967295");
DWORD dwTime = strtoul(strTime, &pEnd, 10);

"Money talks. When my money starts to talk, I get a bill to shut it up." - Frank

"Judge not by the eye but by the heart." - Native American Proverb

Zac Howland1-Aug-06 4:38

Zac Howland

1-Aug-06 4:38

RajiRaghu wrote:
CTime time1("20060708121212"); // Time as CSting format as a CString variable

CTime is not a CString.

Last time I checked, CTime did not have a constructor that accepted a string parameter.

If you have a string that is formatted as YYYYMMDDHHmmSS (Y = year, M = month, D = day, H = hour, m = minute, S = second), then you could grab the correct parts and put them into a CTime variable:

CString str = _T("20060708121212");<br />
long year = atol(str.Mid(0, 4));<br />
long month = atol(str.Mid(4, 2));<br />
long day = atol(str.Mid(6, 2));<br />
long hour = atol(str.Mid(8, 2));<br />
long minute = atol(str.Mid(10, 2));<br />
long second = atol(str.Mid(12, 2));<br />
CTime time(year, month, day, hour, minute, second);

If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week

Zac