Hi,

I have trouble with CreateIndirectFont(). When I run my program for a while the font size automatically change. Why could this happen?
Here is part of my code.

case WM_PAINT:
...
hDC = BeginPaint ( hWnd, &ps);

lf.lfWeight= FW_NORMAL;
lf.lfCharSet= ANSI_CHARSET;
lf.lfPitchAndFamily=35;
lf.lfHeight= 10;

hNFont=CreateFontIndirect(&lf);
SelectObject(hDC,hNFont);

TextOut(hDC...
DeleteObject(hNFont);
...
....

EndPaint(hWnd,&ps);

break;


Where did I go wrong?

Thanks for your help.
Regards,
Jikko

This message was edited by AsmGuru62 at 2005-10-25 4:0:27

---

:
: Hi,
:
: I have trouble with CreateIndirectFont(). When I run my program for a while the font size automatically change. Why could this happen?
: Here is part of my code.
:

:   case WM_PAINT:
:          ...
:          hDC = BeginPaint ( hWnd, &ps);
: 
:         lf.lfWeight= FW_NORMAL;
: 	lf.lfCharSet= ANSI_CHARSET;
: 	lf.lfPitchAndFamily=35;
: 	lf.lfHeight= 10;
: 	strcpy(lf.lfFaceName, "Tahoma"); // why not specifying the name?
: 
: 		  hNFont=CreateFontIndirect(&lf);
: 		  hDefault=SelectObject(hDC,hNFont);
: 
: 		  TextOut(hDC...			
: 		  SelectObject(hDC,hDefault);
: 		  DeleteObject(hNFont);
: 		...
:                 ....
: 
: 	EndPaint(hWnd,&ps);
: 
: 		 break;
: 

:
:
: Where did I go wrong?
:
: Thanks for your help.
: Regards,
: Jikko
:

: This message was edited by AsmGuru62 at 2005-10-25 4:0:27

---

: :
: : Hi,
: :
: : I have trouble with CreateIndirectFont(). When I run my program for a while the font size automatically change. Why could this happen?
: : Here is part of my code.
: :

: :   case WM_PAINT:
: :          ...
: :          hDC = BeginPaint ( hWnd, &ps);
: : 
: :         lf.lfWeight= FW_NORMAL;
: : 	lf.lfCharSet= ANSI_CHARSET;
: : 	lf.lfPitchAndFamily=35;
: : 	lf.lfHeight= 10;
: : 	strcpy(lf.lfFaceName, "Tahoma"); // why not specifying the name?
: : 
: : 		  hNFont=CreateFontIndirect(&lf);
: : 		  hDefault=SelectObject(hDC,hNFont);
: : 
: : 		  TextOut(hDC...			
: : 		  SelectObject(hDC,hDefault);
: : 		  DeleteObject(hNFont);
: : 		...
: :                 ....
: : 
: : 	EndPaint(hWnd,&ps);
: : 
: : 		 break;
: : 

: :



Hi,

Thanks for your reply.
Would you please, explain more detail why do I have to add a few more line? I just made copy&paste&modify from my Windows programming book.

My best,
Teerapong

: : This message was edited by AsmGuru62 at 2005-10-25 4:0:27

---

: : :
: : : Hi,
: : :
: : : I have trouble with CreateIndirectFont(). When I run my program for a while the font size automatically change. Why could this happen?
: : : Here is part of my code.
: : :

: : :   case WM_PAINT:
: : :          ...
: : :          hDC = BeginPaint ( hWnd, &ps);
: : : 
: : :         lf.lfWeight= FW_NORMAL;
: : : 	lf.lfCharSet= ANSI_CHARSET;
: : : 	lf.lfPitchAndFamily=35;
: : : 	lf.lfHeight= 10;
: : : 	strcpy(lf.lfFaceName, "Tahoma"); // why not specifying the name?
: : : 
: : : 		  hNFont=CreateFontIndirect(&lf);
: : : 		  hDefault=SelectObject(hDC,hNFont);
: : : 
: : : 		  TextOut(hDC...			
: : : 		  SelectObject(hDC,hDefault);
: : : 		  DeleteObject(hNFont);
: : : 		...
: : :                 ....
: : : 
: : : 	EndPaint(hWnd,&ps);
: : : 
: : : 		 break;
: : : 

: : :
:
:
:
: Hi,
:
: Thanks for your reply.
: Would you please, explain more detail why do I have to add a few more line? I just made copy&paste&modify from my Windows programming book.
:
: My best,
: Teerapong
:
The book you are using is wrong. Use Petzold's book or use MSDN:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/devcons_1vsk.asp

The quote: "Do not delete a drawing object (pen or brush) while it is still selected into a DC."