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Message Boxes

Started by David91999 May 27, 2002 at 1:26 AM 2 replies 700+ views

Original Post

David91999

May 27, 2002 at 1:26 AM

How can I get the function MessageBox to print the value of a variable?

eldee

May 27, 2002 at 1:27 AM

sprintf?

-eldee
;another space monkey;
[ Forced Evolution Studios ]

Norge

May 28, 2002 at 10:20 AM

Depends. If your variable is a string, you can use
MessageBox(NULL,sVariable,"MessageBoxTitle",MB_OK);

Elseway, you have to convert your variable into a string.

diddly-yo

May 28, 2002 at 10:35 AM

I'll post some code that is similar to what I use in my logs.

    
#include <stdio.h>
#include <stdarg.h>

// sample usage: MBox("value of temp = %i", temp);

// %i corresponds to ineger value

// %f corresponds to floating point value  

bool MBox(char* string, ...)
{
        va_list		ap;
	char text[256];
	if (string == NULL)			
		return false;	

	va_start(ap, string);					
	    vsprintf(text, string, ap);			
	va_end(ap);
        // text[] now contains whatever text you supplied plus the numeric values

   
        MessageBox(hWnd, text, "popup message", MB_OK); // where hWnd is your window's handle or NULL


        return true;

edit: I wanted to add that this code is taken basically from NeHe's font tutorials. It's the same principle.

I hope this helps.

diddly

[edited by - diddly-yo on May 28, 2002 11:37:13 AM]

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