C / C++ / MFC

Re: GDI & Image Processing

12-Jun-07 23:25

Another difference is Win32 is more GUI (Grafic User Interface) oriented as the console (old ms-dos programms), altough it is possible to draw and so on. But both of win32 have Win-APIs support.

Note: I can be wrong and need a good explanation too :P But this is what I (at least now) think/know

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

GDI & Image Processing

KienNT7812-Jun-07 21:05

KienNT78

12-Jun-07 21:05

Dear all,
I design a chart view to show like in the link below:
http://www.photoupload.org/image/3798.jpeg
My solution is used an array that hold all points and used MoveTo() and LineTo() funtions to draw.
But I need line is more smooth than now and I want to ask about solution to do
I try to study http://www.codeproject.com/gdi/CTGraphics.asp but I didn't understand much!

Thanks

CPallini12-Jun-07 21:23

CPallini

12-Jun-07 21:23

You can also use GDI+ to perform anti-aliasing.
Smile | :)

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.

Re: GDI & Image Processing

Nelek12-Jun-07 23:22

problem in file open dialog box

12-Jun-07 23:22

To draw the line in the screen you need at least one pixel, other thing is the meaning in size of that pixel (according to the MAPMODE).

Take a look with CreatePen and similars, you can configure the width, and selecting the object in the DC, you will use the configuration you need/want

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

trioum12-Jun-07 20:57

trioum

12-Jun-07 20:57

hi, I am using the fillowing code to open the file .
but dialog box could not appear .tell me where is problem

OPENFILENAME ofn; // common dialog box structure
char szFile[260]; // buffer for file name
HWND hwnd; // owner window
HANDLE hf; // file handle
ZeroMemory(&ofn, sizeof(OPENFILENAME));
ofn.lStructSize = sizeof(OPENFILENAME);
ofn.hwndOwner =(HWND)NULL;
ofn.lpstrFile = szFile;
ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = "All\0*.*\0Text\0*.TXT\0";;
ofn.nFilterIndex = 1;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
if (GetOpenFileName(&ofn)==TRUE)
hf = CreateFile(ofn.lpstrFile, GENERIC_READ,0, (LPSECURITY_ATTRIBUTES) NULL,OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,(HANDLE) NULL);
MessageBox(NULL,TEXT("Press load Button"),TEXT("DEBUG"),NULL);

Trioum

Re: problem in file open dialog box

Hamid_RT12-Jun-07 21:30

Re: problem in file open dialog box

12-Jun-07 21:30

Whats result when run this code?

OPENFILENAME ofn;       // common dialog box structure
       char szFile[260];       // buffer for file name
             HWND hwnd;              // owner window
                HANDLE hf;              // file handle
ZeroMemory(&ofn, sizeof(ofn	));                            
                ofn.lStructSize = sizeof(ofn);;
                ofn.hwndOwner =m_hWnd;
                ofn.lpstrFile = szFile;
	ofn.lpstrFile[0] = '\0';
        ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = "All\0*.*\0Text\0*.TXT\0";;
          ofn.nFilterIndex = 1;
           ofn.lpstrFileTitle = NULL;
                ofn.nMaxFileTitle = 0;
 ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
if (GetOpenFileName(&ofn)==TRUE)                                 
hf = CreateFile(ofn.lpstrFile, GENERIC_READ,0, (LPSECURITY_ATTRIBUTES) NULL,OPEN_EXISTING, 
FILE_ATTRIBUTE_NORMAL,(HANDLE) NULL);

WhiteSky

trioum13-Jun-07 1:26

trioum

13-Jun-07 1:26

thanks I have done it

Trioum

Re: problem in file open dialog box

Hamid_RT13-Jun-07 3:34

Using OpenGL Text Output with DIB Section

13-Jun-07 3:34

You're welcome. Smile | :)

WhiteSky

beko12-Jun-07 20:37

beko

12-Jun-07 20:37

Hello,

I am creating an outline font as below, and use it with PrintOutlineString, when i use these functions without DIB Section (which i use for printing) it works. However, when i use the DIBSection, i cannot display texts.

May be a bit off-topic in this forum, however if anyone used both together and how?

Thanks in advance.

Bekir.

<br />
unsigned int CreateOutlineFont(char *fontName, int fontSize, float depth)<br />
{<br />
	HFONT hFont;         // windows font<br />
	unsigned int base;<br />
<br />
	base = glGenLists(256);      // create storage for 96 characters<br />
<br />
	if (stricmp(fontName, "symbol") == 0)<br />
	{<br />
	     hFont = CreateFont(fontSize, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, SYMBOL_CHARSET, <br />
							OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY,<br />
							FF_DONTCARE | DEFAULT_PITCH, fontName);<br />
	}<br />
	else<br />
	{<br />
		 hFont = CreateFont(fontSize, 0, 0, 0, FW_BOLD, FALSE, FALSE, FALSE, ANSI_CHARSET, <br />
							OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY,<br />
							FF_DONTCARE | DEFAULT_PITCH, fontName);<br />
	}<br />
<br />
	if (!hFont)<br />
		return 0;<br />
<br />
	SelectObject((*m_dib.GetDC()), hFont);<br />
	wglUseFontOutlines((*m_dib.GetDC()), 0, 255, base, 0.0f, depth, WGL_FONT_POLYGONS, gmf);<br />
<br />
<br />
/*<br />
	SelectObject(m_hDC, hFont);<br />
	wglUseFontOutlines(m_hDC, 0, 255, base, 0.0f, depth, WGL_FONT_POLYGONS, gmf);<br />
/**/<br />
	<br />
<br />
	return base;<br />
}<br />
<br />
<br />
void PrintOutlineString(double x, double y, char *str)<br />
{<br />
	float length = 0;<br />
<br />
	if ((str == NULL))<br />
		return;<br />
<br />
	// center the text<br />
	for (unsigned int loop=0;loop<(strlen(str));loop++)	// find length of text<br />
	{<br />
		length+=gmf[str[loop]].gmfCellIncX;		        // increase length by character's width<br />
	}<br />
<br />
	glPushMatrix();<br />
	glLoadIdentity();<br />
	glTranslatef(x,y,0.0f);                  // translate to center text<br />
	//glScalef(0.25,0.25,0.25);<br />
<br />
<br />
	// draw the text<br />
	glPushAttrib(GL_LIST_BIT);<br />
		glListBase(listBase);<br />
		glCallLists(strlen(str), GL_UNSIGNED_BYTE, str);<br />
	glPopAttrib();<br />
<br />
	glPopMatrix();<br />
}<br />
<br />

NeWbie Rook Programmer!

brandonsjo12-Jun-07 20:36

brandonsjo

12-Jun-07 20:36

Anybody..I am a sophmore in college about to take a c++ programming class. I have now experience with programming at all Sigh | :sigh:

. Can anybody give me a good website or tell me of a good back that will give me a good founddation for learning to program before i start my class in august. Sniff | :^)

anything would help. thnx

Re: NeWbie Rook Programmer!

Hamid_RT12-Jun-07 21:30

Re: NeWbie Rook Programmer!

12-Jun-07 21:30

Well for start see
www.Msdn.com[^]
MFC/C++[^]
www.cplusplus.com[^]

WhiteSky

Nelek12-Jun-07 23:18

12-Jun-07 23:18

Just put "C++ pdf" in google, you will have a lot of matches with a lot of manuals about. Take some start reading them and ask whatever you don't understand. We will help you as much as we can Smile | :)

(but explaining, not doing YOUR homeworks Wink | ;)

:P)

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

CDialog

Bravoone_200612-Jun-07 20:29

Bravoone_2006

12-Jun-07 20:29

I have a CDialog base aplication and a button and i want to start (DoModal) but is not working for CFormView !? How can i start a CFormView ??from a CButton !

Bravoone

Hans Dietrich12-Jun-07 20:54

Hans Dietrich

12-Jun-07 20:54

CFormView-based (SDI/MDI) and dialog-based refer to the architecture of the app - an app can be one or the other, but not both. You can display a dialog from a CFormView-based app, but you can't display a CFormView from a dialog-based app. If you had a separate CFormView-based app, then of course you could start it from a dialog-based app - is that what you want to do?

Best wishes,
Hans

[CodeProject Forum Guidelines] [How To Ask A Question] [My Articles]

Bravoone_200612-Jun-07 21:40

Bravoone_2006

12-Jun-07 21:40

I have a CDialog base aplication and a dialog CFormView base in the same project from CDialog i want to start CFormView HOW ?

Bravoone

Nelek12-Jun-07 23:15

12-Jun-07 23:15

I have explained how to open a CFormView from a MDI, search in forum posts with autor (Nelek) and keywords (Child Window). Part of the code will be usefull. But you will have problems with some parts because you don't have Doc/View relationship. But at least you have an idea about how it should be made.

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

How to enable menuitem...

David Crow13-Jun-07 3:38

David Crow

13-Jun-07 3:38

Bravoone_2006 wrote:
I have a CDialog base aplication and a dialog CFormView base in the same project from CDialog i want to start CFormView HOW ?

It sounds as though you want to start one application from within another. Correct? If so, check out CreateProcess().

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

artihcv12-Jun-07 19:56

artihcv

12-Jun-07 19:56

I am having a menu call test and execute..
test is having test1 and test2 as menuitem...
execute is having execute1 and execute2 as menuitem...
i have used the below code to disable test2, execute1..
void CMainFrame::OnUpdateTestTest2(CCmdUI* pCmdUI)
{
// TODO: Add your command update UI handler code here
pCmdUI->Enable(FALSE);
}
void CMainFrame::OnUpdateExecuteExecute1(CCmdUI* pCmdUI)
{
// TODO: Add your command update UI handler code here
pCmdUI->Enable(FALSE);
}
Now my question is....
i). when i click test1, i want to enable execute1 and test2..
how to do this...
can anyone help me...
Chitra

Re: How to enable menuitem...

Hamid_RT12-Jun-07 20:04