• "Stephen De Chellis" <steve hmtk.com> Dec 01 2002
• "Matthew Wilson" <dmd synesis.com.au> Dec 01 2002
• Laurentiu Pancescu <plaur crosswinds.net> Dec 02 2002

I'm having problems displaying text in an edit control.

Here is the code for the editor window:

LRESULT CALLBACK EditWndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM
lParam)
{
static HWND hwndEdit, hwndButton;
static HDC hdc;
static int x=0, i=0;
PAINTSTRUCT ps ;
RECT rect ;

switch (message)
{
case WM_CREATE:
hwndButton=CreateWindow (TEXT ("button"), TEXT ("OK"), WS_CHILD |
WS_VISIBLE,
5,560,100,30,
hwnd, (HMENU) IDOK, ghInstance, NULL);
hwndEdit=CreateWindow (TEXT ("edit"), szHistory, WS_CHILD | WS_VISIBLE |
WS_BORDER | ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL,
5,5,700,550,
hwnd, (HMENU) IDC_EDIT1, ghInstance, NULL);
SetWindowText (hwndEdit, szHistory);

return 0;

case WM_PAINT :
hdc = BeginPaint (hwnd, &ps) ;

GetClientRect (hwnd, &rect);

EndPaint (hwnd, &ps) ;
return 0 ;

case WM_COMMAND:

switch (LOWORD (wParam))
{

case IDOK:
// retrieve text
GetWindowText (hwndEdit, szHistory, 32000) ;
DestroyWindow(hwnd);
}
break ;

}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}

I register the class:

wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = EditWndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE (IDI_ICON1)) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = TEXT ("EditWindow") ;


Save:

i=strlen(szHistory);
fprintf(outfile,"%i ",i);
fwrite(szHistory, i, 1, outfile);

Load:

fscanf(infile,"%i ",&i);
fread(szHistory, sizelem, i, infile);



After saving the text their is no problem, but after loading the saved text
back into the string all the <CR>'s are converted to vertical lines and all
the text is mashed together.


--
Thank You
Stephen De Chellis
steve hmtk.com

www.hmtk.com for HMTK information
www.kenzerco.com for HackMaster information


--
Thank You
Stephen De Chellis
steve hmtk.com

www.hmtk.com for HMTK information
www.kenzerco.com for HackMaster information

Stephen, without looking in much detail in your code, I can tell you that
EDIT controls have a weirdness with multi-line text.

It having been a while, I cannot recollect whether they must have \r\n for
each line break, or \n, but my inclination is that it is the former.

Hope that helps. If not, put another post up, and I'll try and search my
source database for something to inform us both

Matthew

"Stephen De Chellis" <steve hmtk.com> wrote in message
news:aseaic$fb4$1 digitaldaemon.com...
 I'm having problems displaying text in an edit control.

 Here is the code for the editor window:

 LRESULT CALLBACK EditWndProc (HWND hwnd, UINT message, WPARAM wParam,


 lParam)
 {
 static HWND hwndEdit, hwndButton;
 static HDC hdc;
 static int x=0, i=0;
 PAINTSTRUCT ps ;
 RECT rect ;

 switch (message)
 {
 case WM_CREATE:
 hwndButton=CreateWindow (TEXT ("button"), TEXT ("OK"), WS_CHILD |
 WS_VISIBLE,
 5,560,100,30,
 hwnd, (HMENU) IDOK, ghInstance, NULL);
 hwndEdit=CreateWindow (TEXT ("edit"), szHistory, WS_CHILD | WS_VISIBLE |
 WS_BORDER | ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL,
 5,5,700,550,
 hwnd, (HMENU) IDC_EDIT1, ghInstance, NULL);
 SetWindowText (hwndEdit, szHistory);

 return 0;

 case WM_PAINT :
 hdc = BeginPaint (hwnd, &ps) ;

 GetClientRect (hwnd, &rect);

 EndPaint (hwnd, &ps) ;
 return 0 ;

 case WM_COMMAND:

 switch (LOWORD (wParam))
 {

 case IDOK:
 // retrieve text
 GetWindowText (hwndEdit, szHistory, 32000) ;
 DestroyWindow(hwnd);
 }
 break ;

 }
 return DefWindowProc (hwnd, message, wParam, lParam) ;
 }

 I register the class:

 wndclass.style = CS_HREDRAW | CS_VREDRAW ;
 wndclass.lpfnWndProc = EditWndProc ;
 wndclass.cbClsExtra = 0 ;
 wndclass.cbWndExtra = 0 ;
 wndclass.hInstance = hInstance ;
 wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE (IDI_ICON1)) ;
 wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
 wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
 wndclass.lpszMenuName = NULL ;
 wndclass.lpszClassName = TEXT ("EditWindow") ;


 Save:

 i=strlen(szHistory);
 fprintf(outfile,"%i ",i);
 fwrite(szHistory, i, 1, outfile);

 Load:

 fscanf(infile,"%i ",&i);
 fread(szHistory, sizelem, i, infile);



 After saving the text their is no problem, but after loading the saved


 back into the string all the <CR>'s are converted to vertical lines and


 the text is mashed together.


 --
 Thank You
 Stephen De Chellis
 steve hmtk.com

 www.hmtk.com for HMTK information
 www.kenzerco.com for HackMaster information


 --
 Thank You
 Stephen De Chellis
 steve hmtk.com

 www.hmtk.com for HMTK information
 www.kenzerco.com for HackMaster information

As far as I remember, in a multiline edit control, lines must be 
separated by "\r\r\n" (no typo, two \r and a \n).

HTH,
   Laurentiu

Stephen De Chellis wrote:
 I'm having problems displaying text in an edit control.