Re: Rotating TextOut() ? - C / C++ / MFC Discussion Boards

Ricky_TheBard2-Jan-03 7:59

2-Jan-03 7:59

Yes Rob,
I'm selecting ok!
Does have an function or something that must be overriding?
Must I reformat all my RichEdit every time that I insert a new line?
I'm confused because all that I'm doing is inserting a new line with different colors, and this crashs the other lines already formated...
well, I'll continue searching for something here, thanks for your help Smile | :)

Ricky

Re: RichEditCtrl problem

RobJones2-Jan-03 8:40

RobJones

2-Jan-03 8:40

Just a thought.. you might try using SetSelectionCharFormat() instead of SetWordCharFormat().. Not sure if that will help..

I am assuming your making some type of chat program. I have had the same problems in the past, I wanted to color my name blue and leave the other persons name default so I had to create a loop and re-color each occurance of my name each time a new line was added. I have seen some syntax color edit controls here on codeproject and on codeguru.. you may check them out, they might be doing something that you are missing..

You might alos look into stream in and stream out.. Then when you receive a message you could color the whole line one color and when you send messages color it a different color.. Just a thought..

Good luck,
Rob

Re: RichEditCtrl problem

Ricky_TheBard2-Jan-03 23:34

Ricky_TheBard

2-Jan-03 23:34

That's right Rob, I'm doing a chat program Smile | :)

I'm studing some code samples that I take from codeguru.
Thanks very much for your Help Rob,
cheers!

Ricky

Rotating TextOut() ?

dazinith2-Jan-03 6:05

dazinith

2-Jan-03 6:05

Can someone tell me how I can rotate some text i am putting on a CDC?

Im currently creating the font, then using TextOut() to draw the text when displaying and printing, is there a way to rotate the text 45 degrees?

thanks in advance for any suggestions!

still a newb.. cut me some slack :P
-dz

Re: Rotating TextOut() ?

Navin2-Jan-03 6:23

Navin

2-Jan-03 6:23

I believe you can specify the text rotation when you create your font. Check out CFont in MSDN for more info... then it's just a matter of selecting that font, and then calling TextOut as normal.

If you aren't using MFC, I think this item is also in the LOGFONT structure.

Even a broken clock is right twice a day.

Re: Rotating TextOut() ?

Chris Meech2-Jan-03 6:22

Chris Meech

2-Jan-03 6:22

In the LOGFONT structure there is a data member called lfEscapement. Before you pass the LOGFONT structure to a CreateFont call, assign some value to this member and that should rotate the text. Below is some code I use in a view that makes use of rotated text.

BOOL CRedsView::CreateFont(CFont& Target, LPCSTR Name, int PointSize, int Weight, BYTE bItalic, BYTE bUnderline, long nEscapement)
{
	LOGFONT		LogFont;

	LogFont.lfHeight			=	PointSize;
	LogFont.lfWidth				=	NULL;
	LogFont.lfEscapement		=	nEscapement;
	LogFont.lfOrientation		=	NULL;
	LogFont.lfWeight			=	Weight;
	LogFont.lfItalic			=	bItalic;
	LogFont.lfUnderline			=	bUnderline;
	LogFont.lfStrikeOut			=	NULL;
	LogFont.lfCharSet			=	ANSI_CHARSET;
	LogFont.lfOutPrecision		=	OUT_TT_PRECIS;
	LogFont.lfClipPrecision		=	CLIP_TT_ALWAYS;
	LogFont.lfQuality			=	PROOF_QUALITY;
	LogFont.lfPitchAndFamily	=	TMPF_TRUETYPE|FF_SWISS;
	strcpy(LogFont.lfFaceName, Name);

	return ( Target.CreateFontIndirect(&LogFont) );
}

void	CRedsView::CreateAllFonts(double dZoomFactor)
{
	CString		FontFaceName("Arial");

	if ( !CreateFont(m_fHeading, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.75*dZoomFactor), FW_BOLD, 0, 1) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fSubTitle, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.5*dZoomFactor)) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fSubTitle1, (LPCSTR)FontFaceName,  (int)(m_nFontSize*1.5*dZoomFactor), FW_BOLD) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fSubHeading, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.5*dZoomFactor), FW_BOLD, 1) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fSubHeading1, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.5*dZoomFactor), FW_BOLD, 0, 1) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fNormal, (LPCSTR)FontFaceName, (int)(m_nFontSize*dZoomFactor)) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fNormal10, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.25*dZoomFactor)) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");

	if ( !CreateFont(m_fAngled, (LPCSTR)FontFaceName, (int)(m_nFontSize*1.5*dZoomFactor), FW_NORMAL, 0, 0, -750) )
		TRACE("A call to the CreateFont method has returned FALSE.\n");
}

Chris Meech

"what makes CP different is the people and sense of community, things people will only discover if they join up and join in." Christian Graus Nov 14, 2002.

"AAAAAAAAAHHHHHH!!!!! Those leaks are driving me crazy! How does one finds a memory leak in a garbage collected environment ??! Daniel Turini Nov. 2, 2002.

Re: Rotating TextOut() ?

Roger Allen2-Jan-03 6:42

Roger Allen

2-Jan-03 6:42

Set the nOrientation LOGFONT member variable to 450 for a 45 degree shift, 900 for 90 etc when creating your font.

Roger Allen
Sonork 100.10016

This is a multiple choice question, choose wisely
Why did the hedgehog cross the road?
A: To show he had guts?
B: To see his flat mate?

Re: Rotating TextOut() ?

dazinith2-Jan-03 7:54

dazinith

2-Jan-03 7:54

thanks a ton for everyone's help Smile | :)

i had tried adjusting the nOrientation on the CreateFont() call, but it wasn't doing anything.. i ended up changing the nEscapement to 450 and that worked.. turned out i was using too small of units.. i had been trying 45 Smile | :)

hehe

anyways it seems it is nEscapement, as it didn't work for nOrientation, however the descriptions in msdn makes it sound like you could do it either way..

thanks Smile | :)

CFont fnDemo;
fnDemo.CreateFont(
    1200, // nHeight
    0,  // nWidth
    450,    // nEscapement
    0,  // nOrientation
    FW_BOLD,    // nWeight
    TRUE,   // italic
    TRUE,   // underline
    0,  // strikeout
    ANSI_CHARSET,   // ncharset
    OUT_DEFAULT_PRECIS, // noutprecision
    CLIP_DEFAULT_PRECIS, //nclip precision
    DEFAULT_QUALITY,    // nQuality
    DEFAULT_PITCH | FF_SWISS,   // nPitchAndFamily
    "Courier New");
CFont* pOldFont = pDC->SelectObject(&fnDemo);

still a newb.. cut me some slack :P
-dz

Re: Rotating TextOut() ?

Shog⁹2-Jan-03 8:00

Shog⁹

2-Jan-03 8:00

dazinith wrote:
anyways it seems it is nEscapement, as it didn't work for nOrientation, however the descriptions in msdn makes it sound like you could do it either way..

It's one of those confusing things in GDI where the authors felt it should work a certain way, but didn't bother actually implementing on systems where it mattered. nOrientation *will* actually take effect if you've called SetGraphicsMode(GM_ADVANCED), but only on WinNT or greater. To be on the safe side, set nOrientation to the same value as nEscapement - it's usually gonna be what you want anyway.

---

Shog⁹
The siren sings a lonely song - of all the wants and hungers
The lust of love a brute desire - the ledge of life goes under

Reading a Binary Data File

Frankie Lee2-Jan-03 4:50

Frankie Lee

2-Jan-03 4:50

I have a Davis Instrument Weather station and it comes with software that downloads the data from the station and writes it to binary data files. One file per month is created. The only documentation (see below) I could find for the data file format seems to indicate it is a C++ created binary file. Davis Instruments tech support was unwilling to provied any additional information. I want to use Visual C++ .net to read the data out of the files and load it into a SQL database. The problem is I am a C++ novice and cannot seem to find any good examples of dealing with files like this. Deserialization was something I was looking at but if I understand correctly you can only store and thus read one object in one file. Can anyone tell me what would be the best approach to extracting the data contained in these files?

Thanks,
Frank Kloskowski

Data File Structure

// Data is stored in monthly files. Each file has the following header.
struct DayIndex
{
int recordsInDay;
long startPos; // The index (starting at 0) of the first record for the day.
};

// Header for each monthly file.
class HeaderBlock
{
char idCode [16]; // = {'W', 'D', 'A', 'T', '1', '.', '0', 0, 0, 0, 0, 0, 0, 0, 1, 0}
int daysInMonth; // this field is no longer used.
long totalRecords;
DayIndex dayIndex [31];
};

// After the Header are one or more records with the following format
class WeatherRecord
{
int packedTime;
int hiOutsideTemp;
int lowOutsideTemp;
int insideTemp;
int outsideTemp;
int barometer;
unsigned char insideHum;
unsigned char outsideHum;
int dewPoint;
int rain;
unsigned char windSpeed;
unsigned char hiWindSpeed;
int windChill;
unsigned char windDirection;
unsigned char archiveInterval;
};

Re: Reading a Binary Data File

Joaquín M López Muñoz2-Jan-03 5:16

Joaquín M López Muñoz

2-Jan-03 5:16

Hi Frank,

Serialization is of little interest here. What matters is the information about the exact layout of the data. Assuming the classes you provide are accurate with respect to layout, reading could be done like this (pseudocode follows):

#pragma pack(push,8)
// The definitions of the classes go here. Use struct instead of class
// to make all members public by default. The #pragma directive ensures
// that no padding bytes are inserted by the compiler into the layout of the
// classes defined.
#pragma pack(pop)
 
...
 
FILE *fp=fopen("inputfile","rb");
...
// assume we're now in the location where a weather record
// is expected.
WeatherRecord wr;
fread(&wr,sizeof(wr),1,fp);
...

Play with this until you're sure you've gotten it right (for instance, after reading a header block the idCode should have been put into place, etc.) Another subject you might have to take into account is endian-ness (whether numbers are stored from least significant to most significant byte or the other way around). Check if the numbers are consistent --if they are too large some endian-ness change might be needed.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Reading a Binary Data File

Frankie Lee2-Jan-03 12:52

Frankie Lee

2-Jan-03 12:52

Thanks Joaquin. I will give it a try.

Frank Kloskowski

How to show system menu in client area?

Subrahmanyam2-Jan-03 3:19

Subrahmanyam

2-Jan-03 3:19

I have a requirement (in a dialog based application) to show the system menu on click of a button, placed somewhere in the middle of client area.

So I tried this code.

void CMenuTestDlg::OnMenuButton()
{
CMenu * sysMenu = GetSystemMenu(FALSE);
if(sysMenu != NULL){
sysMenu->TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON, 40,40, this);
}
}

Using this, the menu appears but it doesnt function, i.e, I select minimize or close menu item nothing happens.

Am I missing anything here? Gurus Please help me..

Thanks in advance,
Subrahmanyam

Re: How to show system menu in client area?

Joaquín M López Muñoz2-Jan-03 4:06

Joaquín M López Muñoz

2-Jan-03 4:06

TrackPopupMenu seems not to work well with system menus. Try this workaround:

void CMenuTestDlg::OnMenuButton() 
{
  CMenu * sysMenu = GetSystemMenu(FALSE);
  if(sysMenu != NULL){
    int menuID=sysMenu->
      TrackPopupMenu(TPM_LEFTALIGN | TPM_LEFTBUTTON |TPM_RIGHTBUTTON |
                     TPM_NONOTIFY | TPM_RETURNCMD, 40,40, this);
    if(menuID){
      SendMessage(WM_SYSCOMMAND,menuID,0);
    }    
  }
}

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: How to show system menu in client area?

Subrahmanyam2-Jan-03 4:38

Subrahmanyam

2-Jan-03 4:38

Man,
You rock!!

Rose | [Rose]

Thanks for the help. Its working great.

regards,
Subrahmanyam.

Re: How to show system menu in client area?

56789012342-Jan-03 4:15

5678901234

2-Jan-03 4:15

When user selects command from system menu opent by usual way, your dialog gets WM_SYSCOMMAND message. When command is selected from the menu created by OnMenuButton(), dialog gets WM_COMMAND message. Play with Spy++ to find the way to handle this.

Re: How to show system menu in client area?

Subrahmanyam2-Jan-03 4:43

Subrahmanyam

2-Jan-03 4:43

Alex,
Thanks for your reply and the pointer to solution.
Joaquín has posted code and made my day Smile | :)

Thanks to both of you,
Subrahmanyam.

uniq new filename

JGranborg2-Jan-03 2:33

JGranborg

2-Jan-03 2:33

Can somebody help me.
What is the most elegant way to get a uniq filename under windows.

Re: uniq new filename

Joaquín M López Muñoz2-Jan-03 2:56

Joaquín M López Muñoz

2-Jan-03 2:56

GetTempFileName is customarily used for that purpose.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: uniq new filename

JGranborg2-Jan-03 20:58

JGranborg

2-Jan-03 20:58

Thanks a lot this must be the solution.
Jørgen Granborg
DK

UTF-8 to UCS-2 conversion tool (both ways )

gracias_carol2-Jan-03 2:01

gracias_carol

2-Jan-03 2:01

Hi , i am working on a project where i will be needing this plugin kinda library support , so if any one of u have worked or does know the place from where i can get any kinda help then please do let me know.

thanks
gracias

gracias carol

Formatted input?

Jamie Hale2-Jan-03 1:56

Jamie Hale

2-Jan-03 1:56

What's the politically (and standards) correct method these days?

[geek]
I have strings that look like this: "d20", "5d6", etc. I need to suck out the optional prefix number, and the suffix number.
[/geek]

I will be using std::string and the rest of the standard library, and will be avoiding MFC entirely.

Any suggestions? istringstream?

J

May the bear never have cause to eat you.

Re: Formatted input?

Joaquín M López Muñoz2-Jan-03 2:18

Joaquín M López Muñoz

2-Jan-03 2:18

Regular expressions seem to be called for here. Take a look at Boost.Regex++[^].

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

Re: Formatted input?

Jamie Hale2-Jan-03 2:30

Jamie Hale

2-Jan-03 2:30

If the pattern was more complicated, I would agree. But since it's just [0-9]?d[0-9] I figured I could do it manually and save the hassle of figuring out Boost.

Would you recommend using Boost for something so simple?

J

May the bear never have cause to eat you.

Re: Formatted input?

Joaquín M López Muñoz2-Jan-03 2:52

Joaquín M López Muñoz

2-Jan-03 2:52

Well, maybe regexps are a little overkill for this task, but it depends on how confident you are about this format not changing in the future. Anyway, if you're sure this won't change and don't want to mess with regexps, I think sscanf is your best ally here:

#include <stdio.h>
#include <stdlib.h>
 
bool my_precious_parser(const char* str,int& prefix,int& suffix)
{
  char str_prefix[1024]="0",str_suffix[1024];
  if(
    sscanf(
      str,
      "%[012345689]d%[0123456789]",
      str_prefix,str_suffix)!=2 &&
    sscanf(
      str,
      "d%[0123456789]",
      str_suffix)!=1){
    return false;
  }
  prefix=atoi(str_prefix);
  suffix=atoi(str_suffix);
  return true;
}

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

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