How to handle scrollbar? - C / C++ / MFC Discussion Boards

Michael P Butler12-Oct-01 2:42

12-Oct-01 2:42

Are you talking about the string table in resources?

You can use a string table resource with CString via the LoadString method.

CString sTemp = _T("");

sTemp.LoadString(IDS_STR1)

Michael

Re: about CString

Maer72713-Oct-01 1:24

Maer727

13-Oct-01 1:24

Thanks Michael!

Re: about CString

Jim A. Johnson12-Oct-01 2:44

Jim A. Johnson

12-Oct-01 2:44

CString strWhatever(MAKEINTRESOURCE(IDS_STR1));

or

CString strWhatever;
strWhatever.LoadString(IDS_STR1);

Re: Use the string table.

Masaaki Onishi12-Oct-01 4:17

Masaaki Onishi

12-Oct-01 4:17

Hello, the codegurus around the world.;)

We can create the string with IDS_STR1 in the string table of the resource section
in Visual studio. Roll eyes | :rolleyes:

Have a nice day!

-Masaaki Onishi-

Re: Use the string table.

Maer72713-Oct-01 1:29

Maer727

13-Oct-01 1:29

Thanks pal.
: )
Maer

How to compile a HTML file into one file

inforix11-Oct-01 23:34

inforix

11-Oct-01 23:34

Any idea to compile some HTML files into one file. especially the pictures.;)

Re: How to compile a HTML file into one file

Paolo Messina12-Oct-01 6:18

Paolo Messina

12-Oct-01 6:18

Open the file with IE5+ and save it as a .mht (something like a multipart email message).
As far as I know you can only open such a file with IE5+, however.

Paolo

------
"airplane is cool, but space shuttle is even better" (J. Kaczorowski)

How to handle scrollbar?

11-Oct-01 23:25

Hello:
In order to display a bmp Image in a dialog box I created a class named "CImageBox" which was derived from CWnd just like "CStatic". "CImageBox" was created with the style "...|WS_HSCROLL|WS_VSCROLL".
Here comes the problem: How to handle the horizontal and vertical scrollbar?
These are my three unsuccessful experiences:
<1>CWnd::GetScrollBarCtrl() always return NULL;
<2>CView::GetScrollBarCtrl() do not seem to be applicative;
<3>I try to handle WM_VSCROLL in "CImageBox":
void CImageBox::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) ;
The parameter "pScrollBar" is always NULL so I can't use the SetScrollPos() member function.
However "CEdit"(MFC) do well in this,but I can't find the source code of CEdit::GetScrollBarCtrl().
Can anybody help me?
Any advice is appreciable.<shawell2000@163.net>

Re: How to handle scrollbar?

Tomasz Sowinski11-Oct-01 23:53

Tomasz Sowinski

11-Oct-01 23:53

You don't need scrollbar controls - any window can display scrollbars which are integral parts of it, just like border or caption.

Use Cwnd methods like Get/SetScrollRange, Get/SetScrollPos, handle WM_VSCROLL/WM_HSCROLL and you'll be OK.

Note that scrollbars will not appear until you set range greater than client area size.

Tomasz Sowinski -- http://www.shooltz.com

RC file compilation fails giving error RC1015

Lakshmi11-Oct-01 20:48

Lakshmi

11-Oct-01 20:48

Hi,

I'm facing a problem with VC++ ver 6.0(MFC), when ever I try to compile rc file it fails giving fatal error RC1015: Cannot open include file 'afxres.h'. Even if I try to create standard simple dialog based application, while compiling the rc file it fails showing above error,I mean to say VC is failing to build all the applications(VC ver 6.0). I checked the environment variables, thinking there might be problem with environment variables setting, ran vcvars32.bat from "program files\Microsoft visual studio\vc98\bin". Even then it gives the same problem saying, "can not open afxres.h".
If any one knows about this problem, please let me know the solution.

Thanks in advance,
Lakshmi.

Re: RC file compilation fails giving error RC1015

Anna-Jayne Metcalfe11-Oct-01 21:47

Anna-Jayne Metcalfe

11-Oct-01 21:47

A couple of obvious things to check:

Is afxres.h still there? Have a look in C:\Program Files\Microsoft Visual Studio\VC98\mfc\include (or your equivalent) and make sure
Your include paths may not be set up correctly. Check to ensure this directory is on the include path inside the IDE

If all else fails, just re-install VC and the problem should go away. Smile | :)

Andy Metcalfe - Sonardyne International Ltd
(andy.metcalfe@lineone.net)
http://www.resorg.co.uk

"I'm just another 'S' bend in the internet. A ton of stuff goes through my system, and some of the hairer, stickier and lumpier stuff sticks."
- Chris Maunder (I just couldn't let that one past Wink | ;)

)

Generate Reports Using Crystal Reports 7 in VC

Statbat11-Oct-01 20:39

Statbat

11-Oct-01 20:39

Hi,

I am trying to generate reports in my VC application using Crystal Reports 7. I have created the .rpt file. Now I need to integrate this file with the VC application. How can I do so?

My object is that report should not be directly printed but first It should be displayed (with all print preview options) and when the user selects print option it then prints to default printer.

Please help.....

Thanks for ur time .....

~Statbat( );

Re: Generate Reports Using Crystal Reports 7 in VC

Masaaki Onishi12-Oct-01 4:26

Masaaki Onishi

12-Oct-01 4:26

Hello, the codegurs around the world.;)

I think that you use Crystal Report ActiveX control in VC++ project.
And after you insert Crystal Report ActiveX conrol by type library,
you can use its function to show the crystal report file.

I hope that you know how to insert Crystal Report ActiveX control to your project. Confused | :confused:

Have a nice day!

-Masaaki Onishi-

Re: Generate Reports Using Crystal Reports 7 in VC

Rashid Thadha12-Oct-01 6:53

Rashid Thadha

12-Oct-01 6:53

go to the developer web site

http://www.crystaldecisions.com/products/dev_zone/

They have various VC++ samples that show you how to do this

Files and Directories

Michael Martin11-Oct-01 18:31

Michael Martin

11-Oct-01 18:31

I would like to be able to determine if a file or directory exists and then delete it.

File: I use CFileFind to determine if the file exists, but what function can I use to delete it?

Directory: Could use CFileFind but is there a function where I just give it the name and it tells me it exist's or it doesn't. I currently use ::SetCurrentDirectory and see if it succeeds or fails but I don't like this approach. _rmdir deletes the directory is there another function I should use instead?

Michael Martin
Pegasystems Pty Ltd
Australia
martm@pegasystems.com
+61 413-004-018

"Don't belong. Never join. Think for yourself. Peace"
- Victor Stone

Re: Files and Directories

Bernhard11-Oct-01 19:37

Bernhard

11-Oct-01 19:37

if i'm searching / deleting / copying files i usually use the API - functions, cause they work best for me...
::DeleteFile ... deletes a file
::RemoveDirectory ... removes a directory
::FindFirstFile & ::FindNextFile ...to watchup if there's such an directory / File

hope this can help
Bernhard

Re: Files and Directories

Nish Nishant11-Oct-01 21:01

Nish Nishant

11-Oct-01 21:01

You can use SHFileOperation to delete multiple files
This is useful when a directory is not empty
Once you've emptied the directory you can again use SHFileOperation or
RemoveDirectory to delete that directory

Regards
Nish [BusterBoy]

Help Me?

11-Oct-01 17:08

Hello,

I am working on an appplication in which i need to open MS-EXCEL application on press of a button.
I am doing it as in the code below. I am using the MS-EXCEL type library classes for this purpose.
My problem is, though EXCEL is opened the menu items are not visible.

_Application app;
_Workbook book;
Workbooks boos;
COleVariant
covTrue((short)TRUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);

if(!AfxOleInit()){
AfxMessageBox("Could not intialize com dll");
return FALSE;
}
AfxEnableControlContainer();

if(!app.CreateDispatch("Excel.Application"))
{
AfxMessageBox("Failed to create Excel.Application");
return FALSE;
}
app.SetVisible(TRUE);
books = app.GetWorkbooks();

And Then How can i use Excel menu items ?
May you help me?
Cheers Confused | :confused:

Re: Help Me?

Dan Madden14-Oct-01 2:29

Dan Madden

14-Oct-01 2:29

I have this in one of my applications...I get a Menu...take what you need out of it!

<br />
try<br />
{<br />
	_Application app;  // app is the Excel 2000 _Application object.<br />
	_Workbook book;<br />
	_Worksheet sheet;<br />
	_Chart chart;<br />
<br />
	Workbooks books;<br />
	Worksheets sheets;<br />
	Range range;<br />
	ChartObjects chartobjects;<br />
	Charts charts;<br />
	LPDISPATCH lpDisp;<br />
<br />
	// Common OLE variants. These are easy variants to use for<br />
	// calling arguments.<br />
	COleVariant<br />
		  covTrue((short)TRUE),<br />
		  covFalse((short)FALSE),<br />
		  covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);<br />
<br />
	// Start Excel and get Application object.<br />
	if(!app.CreateDispatch("Excel.Application"))<br />
	{<br />
		AfxMessageBox("Couldn't CreateDispatch on Excel");<br />
		return;<br />
	}<br />
<br />
	// Get Workbooks collection.<br />
	lpDisp = app.GetWorkbooks();  // Get an IDispatch pointer<br />
	ASSERT(lpDisp);               // or fail.<br />
	books.AttachDispatch( lpDisp );  // Attach the IDispatch pointer<br />
<br />
	// to the books object.<br />
	app.SetVisible(TRUE);<br />
<br />
	// Open a workbook.<br />
	lpDisp = books.Open(csFilename,<br />
		  covOptional, covOptional, covOptional, covOptional,<br />
		  covOptional, covOptional, covOptional, covOptional,<br />
		  covOptional, covOptional, covOptional, covOptional<br />
					  );<br />
	ASSERT(lpDisp);  // It worked!<br />
<br />
	// Attach to a Workbook object.<br />
	book.AttachDispatch( lpDisp );  // Attach the IDispatch pointer<br />
					// to the book object.<br />
<br />
	// Get sheets.<br />
	lpDisp = book.GetSheets();<br />
	ASSERT(lpDisp);<br />
	sheets.AttachDispatch(lpDisp);<br />
<br />
	// Get the sheet. Note that 1 is added to the index to make sure<br />
	// it is 1-based, not zero-based. Otherwise, you will get odd<br />
	// exceptions.<br />
	// the Worksheets collection = worksheet #.<br />
	// lpDisp = sheets.GetItem( COleVariant((short)(n+1)) );<br />
	lpDisp = sheets.GetItem( COleVariant((short)(1)) );<br />
	ASSERT(lpDisp);<br />
	sheet.AttachDispatch(lpDisp);<br />
<br />
	// Activate and sleep for two seconds so you can see it happen.<br />
	sheet.Activate();<br />
<br />
	// From cell# To cell#.<br />
	lpDisp = sheet.GetRange(COleVariant("A3"), COleVariant("G10000"));<br />
	ASSERT(lpDisp);<br />
	range.AttachDispatch(lpDisp);  // Attach the IDispatch pointer to the range.<br />
	range.Clear();  // Could be ClearContents().<br />
<br />
	CString csCellData = _T("");<br />
	CString csCell = _T("");<br />
<br />
	// Enumerate through worksheets in book and activate in<br />
	// succession.<br />
	for(int n=0; n<lc.GetItemCount(); n++)<br />
	{<br />
<br />
		csCellData = lc.GetItemText(n,0);<br />
		csCell.Format("C%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,1);<br />
		csCell.Format("A%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,2);<br />
		csCell.Format("B%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,3);<br />
		csCell.Format("D%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,4);<br />
		csCell.Format("E%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,5);<br />
		csCell.Format("F%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
		csCellData = lc.GetItemText(n,6);<br />
		csCell.Format("G%i", n+3);<br />
		lpDisp = sheet.GetRange(COleVariant(csCell), COleVariant(csCell));<br />
		ASSERT(lpDisp);<br />
		range.AttachDispatch(lpDisp);<br />
		range.SetValue(COleVariant(csCellData));<br />
<br />
	} // End of For loop. You walked through all three sheets of the<br />
<br />
	// Release dispatch pointer.<br />
	sheet.ReleaseDispatch();<br />
<br />
	// Give the user control over Excel<br />
	app.SetUserControl(TRUE);<br />
<br />
	// Save the file...<br />
	book.Save();<br />
<br />
}  // End of Processing logic.<br />
catch(COleException *e)<br />
{<br />
	char buf[1024];<br />
	sprintf(buf, "COleException. SCODE: %08lx.", (long)e->m_sc);<br />
	::MessageBox(NULL, buf, "COleException", MB_SETFOREGROUND | MB_OK);<br />
}<br />
catch(COleDispatchException *e)<br />
{<br />
	char buf[1024];<br />
	sprintf(buf, <br />
		"COleDispatchException. SCODE: %08lx,Description: \"%s\".",<br />
		(long)e->m_wCode, (LPSTR)e->m_strDescription.GetBuffer(1024));<br />
	::MessageBox(NULL, buf, "COleDispatchException", MB_SETFOREGROUND | MB_OK);<br />
}<br />
catch(...)<br />
{<br />
	::MessageBox(NULL, "General Exception caught.", "Catch-All", 				MB_SETFOREGROUND | MB_OK);<br />
}<br />

Thanks in advance,

Dan

Namespace extension - cut-and-paste feedback from explorer?

reverendshoebox11-Oct-01 15:45

reverendshoebox

11-Oct-01 15:45

I'm working on a namespace extension that represents documents in a repository. It allows the user to copy or cut the documents and paste them to the file system. I'm basically doing the cut/copy by creating an IDataObject instance on the clipboard which returns a reference to the files in CF_HDROP format.

BUT...in the case of a cut and paste, I need to get feedback that the paste was successful so I know whether or not to delete the document object from the repository. I get a "Paste Successful" via IDataObject::SetData(), but if the file already exists where I'm pasting it, I get a "File already exists - overwrite?" dialog box *AFTER* the "Paste Successful" has already been returned!

Is there a way to verify that the paste has actually occured?

Also, is there a way I can add a handler of some sort to the shell that will allow me to paste documents to the file system that are in a custom clipboard format?

Any help would be greatly appreciated.

Thanks,
Tim

Reverend Shoebox

How can I extract numbers from string using basic::string? (STL)

Ryan Park11-Oct-01 15:11

Ryan Park

11-Oct-01 15:11

Hi,

I'm a newbie to STL and have been on this stuff for all day long,

but failed to implement. Plz help!

---My Situation goes---

Say, there is a string like "SP_CALL(~1,~123,~09,455,21)".

I want to extract numbers after '~' character and store it to some container.

Some like MAP, LIST, ...anything that could be used to restore extracted numbers

for later comparison with other numbers.

I've tried with very basic knowledge of STL, but maybe I'm lack much knowledge.

So..If anyone can show some sample code fragments that implements this,

or can point me to similar code, plz help me.

Also, if there are any good books about STL for beginners, let me know.

Thanks a million.

Regards,
Ryan Smile | :)

Re: How can I extract numbers from string using basic::string? (STL)

C^hris L^osinger11-Oct-01 16:10

C^hris L^osinger

11-Oct-01 16:10

if you want to stick with STL, take a look at std::string and its member functions (especially substr, find* and c_str). the std::find* functions can help you isolate chunks of characters between commas and std::string::substr will let you extract those chunks. then use something like atoi to convert those chunks to numbers.

this is one of those things where you have to make a loop that searches, extracts and converts.

here's a small sample that might help:

#include <string>
std::string str = "SP_CALL(~1,~123,~09,455,21)";

int iLeftParen = str.find_first_of('(');
int iCommaPos = str.find(',', iLeftParen);

// this is now "~1"
std::string firstChunk = str.substr(iLeftParen, iCommaPos - (iLeftParen + 1));

-c

Smaller Animals Software, Inc.
http://www.smalleranimals.com

Re: How can I extract numbers from string using basic::string? (STL)

Rashid Thadha12-Oct-01 6:49

Rashid Thadha

12-Oct-01 6:49

why don't you use strtok to get the delimitted numbers ?

probably easier !!

Re: How can I extract numbers from string using basic::string? (STL)

12-Oct-01 7:44

he asked how to do it with STL, not with strtok.

-c

Re: How can I extract numbers from string using basic::string? (STL)

Ryan Park12-Oct-01 15:50

Ryan Park

12-Oct-01 15:50

Hi,

Thanks for your code. Smile | :)

Regards,
Ryan

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