C / C++ / MFC

xipeng5-Nov-02 16:04

5-Nov-02 16:04

draw the entire dialog!
i can capture the screen and save in .BMP. but the bit map has no palette. how can i print it!

Christian Graus5-Nov-02 16:47

5-Nov-02 16:47

Great - don't save it, just get the co-ordinates of the window and print only that part of it.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

Anonymous5-Nov-02 19:44

Anonymous

5-Nov-02 19:44

thank u.
can u help me check out my code,please?

CDC *pDC=GetWindowDC();
CBitmap bm;CRect rc;GetWindowRect(rc);
int Width=rc.Width();//GetSystemMetrics(SM_CXSCREEN);
int Height=rc.Height();//GetSystemMetrics(SM_CYSCREEN);
bm.CreateCompatibleBitmap(pDC,Width,Height);
CDC tdc;tdc.CreateCompatibleDC(pDC);
CBitmap*pOld=tdc.SelectObject(&bm);
tdc.BitBlt(0,0,Width,Height,pDC,0,0,SRCCOPY);
tdc.SelectObject(pOld);
BITMAP btm;
bm.GetBitmap(&btm);
//
//here. btm can be save as BMP file

dc.StartPage(); // begin new page
Info.m_nCurPage = page;
CDC MemDC;
MemDC.CreateCompatibleDC(&dc);
pOld=MemDC.SelectObject(&bm); ///
dc.BitBlt(rc.left,rc.top,rc.right-rc.left,rc.bottom-rc.top,&MemDC,0,0,SRCCOPY);

///but here .
//not be printed . the printer only print the bits,too.and the size of printer document is big!
//

Christian Graus5-Nov-02 19:42

5-Nov-02 19:42

This all looks right, I don't get what the problem is. What are the bounds of the bitmap ? Have you tried blting it to the screen ?

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

xipeng5-Nov-02 19:56

5-Nov-02 19:56

yes.
i have tested it.it can be bited to the screen.
my printer is canon lbp_800.
it's my printer's problem?

Christian Graus5-Nov-02 19:54

5-Nov-02 19:54

It's odd, because in theory if you send a 800x600 bitmap to a printer, you should expect to get a very small bitmap, because most printers have at least 600 dots per inch. IF the bitmap is fine, and the printer driver is hanging with a large amount of data passing through, then the problem is most certainly the print code.

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

xipeng5-Nov-02 20:05

5-Nov-02 20:05

then,
how can i do?
save as BMP file,and print it with MS paint?
please

Christian Graus5-Nov-02 20:09

5-Nov-02 20:09

No, that would clearly be a hack. Print some text to your printer, then create a small bitmap programatically and print that. Build your way up until you work out where it is failing, and fix it ( naturally ask questions if you're confused or stuck, and provide whatever info you manage to find on the way ).

Christian

No offense, but I don't really want to encourage the creation of another VB developer. - Larry Antram 22 Oct 2002

Hey, at least Logo had, at it's inception, a mechanical turtle. VB has always lacked even that... - Shog9 04-09-2002

During last 10 years, with invention of VB and similar programming environments, every ill-educated moron became able to develop software. - Alex E. - 12-Sept-2002

xipeng5-Nov-02 20:32

5-Nov-02 20:32

thank u
i'll try

xipeng6-Nov-02 2:09

Re: ShellExecute question

6-Nov-02 2:09

thanks a lot.
i have printed it.
this is my code

CDC memDC;
CWindowDC dc(this);
CRect rcrc;GetWindowRect(rcrc);
int bmpWidth = rcrc.Width();
int bmpHeight = rcrc.Height();
memDC.CreateCompatibleDC( &dc );
CBitmap * bitmap = new CBitmap();
bitmap->CreateCompatibleBitmap(&dc,bmpWidth, bmpHeight);
CBitmap * pOldBitmap = (CBitmap *) memDC.SelectObject(bitmap);
if (pOldBitmap == NULL) // if bitmap is very big, better check this !
{
memDC.DeleteDC();
delete bitmap;
AfxMessageBox("Not enough resource for the bitmap. Either reduce the bitmap dimension or \nswitch to lower screen setting (e.g. 256-color mode), and try again.");
return;
}
//draw bitmap here, or it can be done in another function
//
memDC.BitBlt(0,0,bmpWidth,bmpHeight,&dc,0,0,SRCCOPY);
// memDC.Ellipse(0, 0, bmpWidth - 1, bmpHeight - 1);
CDC prtDC;
CPrintInfo printInfo;
CSize size;
DOCINFO di;
CString szPortName, szAppName, szPrintError;
szAppName.LoadString(AFX_IDS_APP_TITLE);
szPrintError = "";

CSize paper_size; //printer paper size in mm
int xLogPPI = 0;
int yLogPPI = 0;

if( AfxGetApp()->GetPrinterDeviceDefaults(&printInfo.m_pPD->m_pd) )
{
HDC hDC = printInfo.m_pPD->m_pd.hDC;
if (hDC == NULL)
hDC = printInfo.m_pPD->CreatePrinterDC();
if(hDC !=NULL)
{
prtDC.Attach(hDC);
paper_size.cx = prtDC.GetDeviceCaps(HORZSIZE);
paper_size.cy = prtDC.GetDeviceCaps(VERTSIZE);
xLogPPI = prtDC.GetDeviceCaps(LOGPIXELSX);
yLogPPI = prtDC.GetDeviceCaps(LOGPIXELSY);
}
else
{
AfxMessageBox("Can not find printer. Please check installed/default printers.");
return;
}
}
int scr_xLogPPI = dc.GetDeviceCaps(LOGPIXELSX);
int scr_yLogPPI = dc.GetDeviceCaps(LOGPIXELSY);
int paper_width = (int) ((double) paper_size.cx * (double) xLogPPI / 25.4); //width of a printed page in pixels
int paper_height = (int) ((double) paper_size.cy * (double) yLogPPI / 25.4);
double ratio_x = (double) xLogPPI / (double) scr_xLogPPI;
double ratio_y = (double) yLogPPI / (double) scr_yLogPPI;

//pop up printer dialog

CPrintDialog prtDlg(FALSE, PD_PAGENUMS);

prtDlg.m_pd.nMinPage = 1;
prtDlg.m_pd.nMaxPage = 1;
prtDlg.m_pd.nFromPage = 1;
prtDlg.m_pd.nToPage = 1;

if(prtDlg.DoModal() == IDOK )
{
memset(&di, 0, sizeof(DOCINFO));
di.cbSize = sizeof(DOCINFO);
di.lpszDocName = szAppName;
szPortName = prtDlg.GetPortName();
di.lpszOutput = szPortName;
prtDC.m_bPrinting = TRUE;
}
else
return; //Cancel button pressed, don't forget this!

if(prtDC.StartDoc(&di) == -1)
{
AfxMessageBox("Printing error occured. Unable to find printer.");
prtDC.Detach();
prtDC.DeleteDC();
return;
}

prtDC.SetMapMode(MM_TEXT);

prtDC.StartPage();

prtDC.StretchBlt(0, 0, bmpWidth * ratio_x, bmpHeight* ratio_y, &memDC,
0, 0, bmpWidth, bmpHeight, SRCCOPY);
prtDC.EndPage();
memDC.SelectObject(pOldBitmap);
delete bitmap;
memDC.DeleteDC();

prtDC.EndDoc();
prtDC.Detach();
prtDC.DeleteDC();
return;

ShellExecute question

LukeV5-Nov-02 15:16

LukeV

5-Nov-02 15:16

I want to display outlook:Inbox (which should open outlook to the Inbox folder). It works but the problem is that if Outlook is already openend, it will open a new Outlook instance. Id there a way that ShellExecute (or another function) won't open a new instance and use the one already running?

Thanks!

---------------
Concentrating on Ideas
http://www.edovia.com

User 66586-Nov-02 5:32

User 6658

6-Nov-02 5:32

Simply find the Outlook window using ::FindWindow(...) and activate it. If the findow has not been found then start Outlook with ShellExecute as you already do

modified 12-Sep-18 21:01pm.

Re: ShellExecute question

Stefan Pedersen6-Nov-02 16:03

Stefan Pedersen

6-Nov-02 16:03

Use COM instead, I did this with Word some years ago.
Works great and you have a lot of control through the automation interface.

Win2K/XP Device driver tutorials...

Nish Nishant5-Nov-02 14:18

Nish Nishant

5-Nov-02 14:18

Can someone kindly recommend some URLs where I can get good Win2K/XP Device driver tutorials? Is there a free e-book somewhere on the net?

Thanks and regards,
Nish

Author of the romantic comedy

Summer Love and Some more Cricket [New Win]

Review by Shog⁹
Click here for review[NW]

Re: Win2K/XP Device driver tutorials...

ian mariano5-Nov-02 19:27

ian mariano

5-Nov-02 19:27

Windows NT/Windows 2000/WDM Driver FAQ[^]
System Programming[^]
Knowledge Base Articles for Driver Development[^]

"The greatest danger to humanity is humanity without an open mind."
- Ian Mariano - http://www.ian-space.com/

HELP trying to use TextOut(); function but I want a Dynamic way to get the text size.

elvis89005-Nov-02 13:09

elvis8900

5-Nov-02 13:09

I am writing code and I am trying to use the simple TextOut(); function and I want to create a dynamic way to get the size of the LPCTSTR string rather than try to hard code it. I have tried sizeof() but that doesn't work any suggestions?

Re: HELP trying to use TextOut(); function but I want a Dynamic way to get the text size.

C^hris L^osinger5-Nov-02 13:12

5-Nov-02 13:12

try "strlen" and its cousins.

-c

“losinger is a colorizing text edit control”
-- googlism

newbie needs help

kjessee5-Nov-02 13:05

5-Nov-02 13:05

Probably another simple queston.

I have used the same code in other dialog boxes, (with different variables)and it works.
Thanks for the help.

I get the following ASSERT at the line containing m_BeginStr.ResetContent();

_AFXWIN_INLINE void CComboBox::ResetContent()
{ ASSERT(::IsWindow(m_hWnd)); ::SendMessage(m_hWnd, CB_RESETCONTENT, 0, 0); }

void CDlgOffset::OnButtonBrowse()
{
FILE *StrFile;
CWnd* pWnd;
CString sStrName;
double E;
double S;

CFileDialog dlg( TRUE, "txt", NULL, OFN_FILEMUSTEXIST, "Text Files (*.txt)||\0" ,NULL );
int nResponse = dlg.DoModal();

if (nResponse == IDOK)
{
m_StrFile = dlg.GetPathName();
pWnd = GetDlgItem( IDC_EDIT2 );
pWnd->SetWindowText( m_StrFile );

// Load the Combo Boxes

StrFile = fopen( m_StrFile, "r+");
fseek( StrFile, 0L, SEEK_SET );

m_BeginStr.ResetContent();
m_EndingStr.ResetContent();

while( fscanf( StrFile, "%s %lf %lf", sStrName, &E, &S ) != EOF )
{
m_BeginStr.AddString( sStrName );
m_EndingStr.AddString( sStrName );
}

fclose( StrFile );
}

}

C^hris L^osinger5-Nov-02 13:08

5-Nov-02 13:08

has m_BeginStr been initialized? chances are that it isn't yet a "window" (and the ::IsWindow test is failing). make sure you're either DDX'ing the control or SubClassing it (ie. attaching an actual control to the variable)

-c

“losinger is a colorizing text edit control”
-- googlism

kjessee5-Nov-02 13:23

5-Nov-02 13:23

it has CCombobox attached to it in the member varibles.

C^hris L^osinger5-Nov-02 13:22

5-Nov-02 13:22

look in the DoDataExchange function of your dialog. do you see a line that looks something like this:

DDX_Control(pDX, IDC_MY_COMBOS_ID, m_BeginStr);

?

if not, it needs one. otherwise, the member variable is never actually attached to the control.

-c

“losinger is a colorizing text edit control”
-- googlism

kjessee5-Nov-02 13:39

5-Nov-02 13:39

It is there.

void CDlgO::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDlgOffset)
DDX_Control(pDX, IDC_COMBO_END_STR, m_EndingStr);
DDX_Control(pDX, IDC_COMBO_BEG_STR, m_BeginStr);

C^hris L^osinger5-Nov-02 13:38

5-Nov-02 13:38

hmmm.

can you put a breakpoint on that DDX line and step into the DDX_Control code to see if anything fails?

-c

“losinger is a colorizing text edit control”
-- googlism

kjessee5-Nov-02 14:28