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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

2477.0. "Cannot use Map/Unmap callbacks in dialog_box" by EWBV21::INAZU_K (It's a little bit funny.) Tue Mar 20 1990 05:13

	Hello,

	I have a customer working with Toolkit and UIL.
	She is going to use Map/Unmap callback of dialog box widget ( not popup
	dialog box ). 

	Reading UIL reference manual, there are Map/Unmap callback in dialog 
	box, and UIL compiler does not cause any errors about these callbacks,
	but my program does not work what I expect. I expect that when 
	XtMapWidget and XtUnmapWidget are called, Map/Unmap callback routines 
	should be activated.

	Am I misunderstanding about Map/Unmap callback reason og dialog box?

	Will somebody give me hints ?

	The programs in the reply .1, and .2 will reproduce the phenomena.

	Thanks in advance,

				Kanako Inazu /TSC/CSC/CS/Japan
T.RTitleUserPersonal
Name		DateLines
2477.1C programEWBV21::INAZU_KIt's a little bit funny.Tue Mar 20 1990 05:15110
#include	<stdio.h>
#include	<decw$include/DECwDwtApplProg.h>

#define		MAXARGS 10         

int	Create(), Map(), UnMap(), Act();

static	char		*namvec[] = {"TEST.UID"};

static	DRMHierarchy	hierarchy;
static	DRMCode		class;
static	DRMRegisterArg	regvec[] = { { "Create",       	(caddr_t)Create  },
				     { "Map",        	(caddr_t)Map },
				     { "UnMap",        	(caddr_t)UnMap },
				     { "Act",        	(caddr_t)Act },
	};

Widget	top_level, mainwindow, dialog;
static int flag = 1;
                                    
#define	nFiles(x)	( sizeof(x) / sizeof( char * ) )
#define	nRegs(x)	( sizeof(x) / sizeof( DRMRegisterArg ) )

/*
 * ==========================
 *
 * 	Main Program                         
 *
 * ==========================
 */

main( argc, argv )
unsigned long	argc;
char		*argv[];
{
	Arg	args[MAXARGS];
	long	n;

	DwtInitializeDRM();
	top_level = XtInitialize( "Map/UnMap of DialogBox", 
				"Map", NULL, 0, &argc, argv );

	n = 0;
	XtSetArg( args[n], DwtNx, 200 );	n++;
	XtSetArg( args[n], DwtNy, 200 );	n++;
	XtSetValues( top_level, args, n );

	DwtOpenHierarchy( nFiles( namvec ), namvec, NULL, &hierarchy );
	DwtRegisterDRMNames( regvec, nRegs( regvec ) );
	DwtFetchWidget( hierarchy, "popmain", top_level, &mainwindow, &class );

	XtManageChild( mainwindow );
	XtRealizeWidget( top_level );

	XtMainLoop();
}
 
/*
 * ==========================
 *
 * 	CallBacks
 *
 * ==========================
 */

Create( w, tag, r )
Widget w;
char   *tag;
DwtAnyCallbackStruct *r;
{
	if( *tag == 2 ){
		dialog = w;
	}
}

Map( w, tag, r )
Widget w;
char   *tag;
DwtAnyCallbackStruct *r;                  
{
	printf("This is Map() callback.\n" );
}

UnMap( w, tag, r )
Widget w;
char   *tag;
DwtAnyCallbackStruct *r;
{
	printf("This is UnMap() callback.\n" );
}

Act( w, tag, r )
Widget w;
char   *tag;
DwtAnyCallbackStruct *r;
{
	if( *tag == 2 ){
		exit(1);
	}

	if( *tag == 1 ){
		if( flag == 0 ){
			XtMapWidget( dialog );
		    flag = 1;
		}else{
			XtUnmapWidget( dialog );
		    flag = 0;
		}
	}
}
2477.2UIlEWBV21::INAZU_KIt&#039;s a little bit funny.Tue Mar 20 1990 05:1693
module text
	version = 'v1.0'
	names = case_sensitive

include file  "DECw$Include:DwtAppl.uil";


procedure
	Create( integer );
	Map( );
	UnMap( );
	Act( integer );

object
       popmain : main_window{
		arguments{
			width = 400;
			height= 200;
		};
		controls{
			dialog_box dialog;
			dialog_box dialog1;
		};
		callbacks{
			create = procedure Create(1);
		};
};


object
	dialog1 : dialog_box{
		arguments{
			units = DwtPixelUnits;
			width = 200;
			height = 200;
			x = 0;
			y = 0;
			background_color = color( "White" );
		};
		controls{
			push_button button01;
			push_button button02;
		};
};

object
	dialog : dialog_box{
		arguments{
			units = DwtPixelUnits;
			width = 200;
			height = 200;
			x = 200;
			y = 0;
			background_color = color( "LightBlue" );
		};
		callbacks{
			create = procedure Create(2);
			map = procedure Map();
			unmap = procedure UnMap();
		};
};

object	button01 : push_button{
	arguments{
		x = 10;
		y = 10;
		label_label = compound_string( "Map/UnMap" );
		highlight_color    = color( "Magenta" );
		foreground_color = color( "Magenta" );
		background_color = color( "Pink" );
		shadow = false;
	};                  
	callbacks{
		activate = procedure Act(1);
	};	
};

object	button02 : push_button{
	arguments{
		x = 10;
		y = 60;
		label_label = compound_string( "Exit" );
		highlight_color    = color( "Magenta" );
		foreground_color = color( "Magenta" );
		background_color = color( "Pink" );
		shadow = false;
	};                  
	callbacks{
		activate = procedure Act(2);
	};	
};

end module;
2477.3Popup onlyLEOVAX::TREGGIARIThu Mar 29 1990 08:053
    I think map/unmap callbacks only apply to pop-up dialog boxes.
    
    Leo