About:XtSetArg--->XmNfontList. HELP!!!

gaoeh · 11-03-2005, 08:23 AM

In my programming,I write below:
¡_¡_¡_¡_
n=0;
¡_¡_¡_¡_
XtSetArg(args[n],XmNwidth,250);n++;
XtSetArg(args[n],XmNheight,150);n++;
XtSetArg(args[n],XmNfontList,"-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1");n++;
¡_¡_¡_¡_
mybutton=XmCreatePushButton(parent_f,"parent_f",args,n);
¡_¡_¡_¡_

when I compile my programming,there is an error,below:
X Error of failed request: BadFont (invalid Font parameter)
Major opcode of failed request: 55 (X_CreateGC)
Resource id in failed request: 0x1200017
Serial number of failed request: 153
Current serial number in output stream: 160

Help!!!!
i know there is an error in :XtSetArg(args[n],XmNfontList,"-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1").
How do I correct it?
Help !!!!!!!
thanks.

gaoeh

paulsm4 · 11-03-2005, 09:58 PM

Suggestion -

Did you do an "xlsfonts|grep 'adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1' to verify that you actually have that font on your system?

gaoeh · 11-04-2005, 09:19 AM

Yes!
I do the "xlsfonts|grep 'adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1' ,the font is exist.

how can I do whit it?

paulsm4 · 11-04-2005, 09:40 AM

OK, then it sounds like the problem is that you're giving it a "font", but you're telling Xt to expect a "font list".

Please try this:

Code:

#include <X11/Intrinsic.h>
        #include <Xm/Xm.h>
        #include <Xm/Label.h>


        main(int argc, char *argv[])
        {
          Widget toplevel, msg;
          Arg al[10];
          int ac;

          toplevel=XtInitialize(argv[0],"",NULL,0,&argc,argv);

          ac=0;
          XtSetArg(al[ac],XmNlabelString,
                XmStringCreate("hello",XmSTRING_DEFAULT_CHARSET)); ac++;
          msg=XtCreateManagedWidget("msg",xmLabelWidgetClass,toplevel,al,ac);

          /* declare variables and hook in a different font. */
          {
            XFontStruct *font=NULL;
            XmFontList fontlist=NULL;
            char *namestring=NULL;

            namestring="*6x10*";
            font=XLoadQueryFont(XtDisplay(msg),namestring);
            fontlist=XmFontListCreate(font,XmSTRING_DEFAULT_CHARSET);
            ac=0;
            XtSetArg(al[ac],XmNfontList,fontlist); ac++;
            XtSetValues(msg,al,ac);
          }

          XtRealizeWidget(toplevel);
          XtMainLoop();
        }

Cheers .. PSM

gaoeh · 11-04-2005, 12:27 PM

OK!paulsm4,thanks!
now the master question is resolved.but there is still a question.My programming is below:
#include <X11/Intrinsic.h>
#include <Xm/Xm.h>
#include <Xm/PushB.h>

void main();
void activateCB();
XmString btn_text;

void main(argc,argv)
unsigned int argc;
unsigned **argv;
{
Widget toplevel;
Widget mybutton;
XtAppContext app_context;
Arg args[10];
int n;

toplevel=XtAppInitialize(&app_context,"XMdemos",NULL,0,&argc,argv,NULL,NULL,0);
btn_text=XmStringCreateLtoR("ÖÐ¹ú±±¾©",XmSTRING_DEFAULT_CHARSET); /*ÖÐ¹ú±±¾© is a Chinese string.*/

n=0;
XtSetArg(args[n],XmNlabelString,btn_text);n++;
mybutton=XtCreateManagedWidget("button",xmPushButtonWidgetClass,toplevel,args,n);
XtAddCallback(mybutton,XmNactivateCallback,activateCB,NULL);

XFontStruct *font=NULL;
XmFontList fontlist=NULL;
char *namestring=NULL;
namestring="-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1"; /* this is a Chinese font */
font=XLoadQueryFont(XtDisplay(mybutton),namestring);
fontlist=XmFontListCreate(font,XmSTRING_DEFAULT_CHARSET);

n=0;
XtSetArg(args[n],XmNfontList,fontlist);n++;
XtSetArg(args[n],XmNwidth,250);n++;
XtSetArg(args[n],XmNheight,150);n++;
XtSetValues(mybutton,args,n);

XtRealizeWidget(toplevel);
XtAppMainLoop(app_context);
}

void activateCB(w,client_data,call_data)
Widget w;
caddr_t client_data;
caddr_t call_data;
{
printf("PushButton selected!\n");
}

When i run my programming,what the "mybutton"display is not "ÖÐ¹ú±±¾©".
How can I do whit it? thanks!!!!!
I come from China.
Can you tell me another Chinese_font's name?

keefaz · 11-04-2005, 12:41 PM

Maybe use XmStringCreateLocalized() as :

Code:

/*ÖÐ¹ú±±¾© is a Chinese string.*/
btn_text = XmStringCreateLocalized("ÖÐ¹ú±±¾©", XmFONTLIST_DEFAULT_TAG);

gaoeh · 11-04-2005, 09:55 PM

I do as you said.
"btn_text=XmStringCreateLtoR("ÖÐ¹ú±±¾©",XmSTRING_DEFAULT_CHARSET);" is be changed as "btn_text = XmStringCreateLocalized("ÖÐ¹ú±±¾©", XmFONTLIST_DEFAULT_TAG);"

When I compile my programming,the result is below:
[cring@localhost cring]$ cc -o xmbutton xmbutton.c -L/usr/X11R6/lib -lXm -lXt -lX11
xmbutton.c: In function `main':
xmbutton.c:19: warning: passing arg 6 of `XtAppInitialize' from incompatible pointer type
xmbutton.c:20: too many arguments to function `XmStringCreateLocalized'
xmbutton.c:12: warning: return type of `main' is not `int'
[cring@localhost cring]$

when I "man XmStringCreateLocalized",I know XmStringCreateLocalized has only one parameter which is "char *name".

Your suggestion is helpful!thanks.

keefaz · 11-05-2005, 04:14 AM

You right, my bad...

Code:

btn_text = XmStringCreateLocalized("ÖÐ¹ú±±¾©");

and

Code:

btn_text = XmStringCreate("ÖÐ¹ú±±¾©", XmFONTLIST_DEFAULT_TAG);

are equivalent

Also, try to change :

Code:

void main(argc,argv)
unsigned int argc;
unsigned **argv;

to :

Code:

void main(int argc, char * argv[])

keefaz · 11-05-2005, 04:23 AM

Here is a version that compiles fine :

Code:

#include <X11/Intrinsic.h>
#include <Xm/Xm.h>
#include <Xm/PushB.h>

void activateCB();
XmString btn_text;

int main(int argc, char * argv[]) {
	Widget toplevel;
	Widget mybutton;
	XtAppContext app_context;
	XFontStruct *font=NULL;
	XmFontList fontlist=NULL;
	char *namestring=NULL;
	
	Arg args[10];
	int n;

	toplevel=XtAppInitialize(&app_context,"XMdemos",NULL,0,&argc,argv,NULL,NULL,0);
	btn_text=XmStringCreateLocalized("ÖÐ¹ú±±Ÿ©"); /*ÖÐ¹ú±±Ÿ© is a Chinese string.*/

	n=0;
	XtSetArg(args[n],XmNlabelString,btn_text);n++;
	mybutton=XtCreateManagedWidget("button",xmPushButtonWidgetClass,toplevel,args,n);
	XtAddCallback(mybutton,XmNactivateCallback,activateCB,NULL);

	namestring="-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1"; /* this is a Chinese font */
	font=XLoadQueryFont(XtDisplay(mybutton),namestring);
	fontlist=XmFontListCreate(font,XmSTRING_DEFAULT_CHARSET);

	n=0;
	XtSetArg(args[n],XmNfontList,fontlist);n++;
	XtSetArg(args[n],XmNwidth,250);n++;
	XtSetArg(args[n],XmNheight,150);n++;
	XtSetValues(mybutton,args,n);

	XtRealizeWidget(toplevel);
	XtAppMainLoop(app_context);
	return 0;
}

void activateCB(Widget w,
		caddr_t client_data, 
		caddr_t call_data) 
{
	printf("PushButton selected!\n");
}

cc -o xmbutton xmbutton.c -I/usr/X11R6/include -L/usr/X11R6/lib -lXm -lXt -lX11

gaoeh · 11-05-2005, 07:25 AM

keefaz:I do as you said,and I also run the version that you compiles fine.but the result is no right,the character displayed on "mybutton" is"ä¸????º¬",this is not right.the character displayed on mybutton should be "ÖÐ¹ú±±¾©".

Is there something wrong with my Linux system.My system is Red Hat Linux 9.0.
the font "-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1" is not on my RHL9.0 system,later I install it on my OS.The font-file I get is from Tru64 UNIX system.

Can you give me some advice? Thanks.

gaoeh · 11-05-2005, 07:36 AM

The font_file of "-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1" is:adecw_screen_gb2312_16_18_75.pcf which I get from Tru64 Unix system.I install it on Red Hat Linux9.0.
When I run command below:
-----------------------
[cring@localhost cring]$ xlsfonts | grep screen
adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1
[cring@localhost cring]$
-----------------------
the font is indeed in my RHL9.0 system.

Help!thanks.

keefaz · 11-05-2005, 07:38 AM

Did you set your locale, what does say :

Code:

echo $LANG

from a console prompt ?

gaoeh · 11-05-2005, 08:57 PM

-------------------------
[cring@localhost cring]$ echo $LANG
zh_CN.GB18030
[cring@localhost cring]$
-------------------------

I guess the problem is as you said.
In my RHL9.0 system,the context of /etc/sysconfig/i18n is below:
LANG="zh_CN.GB18030"
LANGUAGE="zh_CN.GB18030:zh_CN.GB2312:zh_CN"
SUPPORTED="zh_CN.GB18030:zh_CN:zh:en_US.UTF-8:en_US:en:ja_JP.eucJP:ja_JP:ja"
SYSFONT="lat0-sun16"
SYSFONTACM="8859-15"

Is the problem in here?How can I add my fontname of ""-adecw-screen-medium-r-normal--18-180-75-75-m-160-gb2312.1980-1" to my system LANG?

Thanks very much!!!

paulsm4 · 11-06-2005, 12:15 AM

Setting the environment variable "$LANG" sets the "locale". The locale helps determine which character set will be used in your Xt/Motif application (it does sound like you're using Motif, aren't you?)

Here are a couple of links that might help:

http://www.cs.arizona.edu/computer.h...coseprg_9.html

http://docs.hp.com/en/B1171-90155/ch04s01.html

http://www.linuxforum.net/chinese/doc/i18n/DOCU_007.HTM

gaoeh · 11-06-2005, 03:30 AM

Thanks a lot.I will try my best to understand what you said.
I believe I must be understand this about font problems.
I will see you give me the materials in above link.
Thanks a lot!!