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From: eaf2239@ritvax.isc.rit.edu
Subject: CopyPix trouble
Message-ID: <1993Mar4.022725.25275@ultb.isc.rit.edu>
Sender: news@ultb.isc.rit.edu (USENET News System)
Nntp-Posting-Host: vaxc.isc.rit.edu
Reply-To: eaf2239@ritvax.isc.rit.edu
Organization: Rochester Institute of Technology
Date: Thu, 4 Mar 1993 02:27:25 GMT
Lines: 157

        About three months ago, I posted about a problem I had been having with
the tool call "CopyPixels" from Orca C 1.4.  In frustration, I droped the
project.  Then GNO.  Inspired by GNO's ability to fork functions, I re-opened
the book on my project and am VERY pleased with what GNO has alowed me to do.
Unfortunatly, I never solved the original problem.  So I hacked the code down
to a simple desk top program that creats a window and an update function (using
copypixels) just like the largr program to see if I could trace out the problem
with out any other stuff going on.  It still doesn't seem to work.  No update!
It should update the window with a line of black dashes. (4 pix of black , 4
pix of white,  and so on)  Any clues?
 
I have included the program here:
 
#include <orca.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <types.h>
#include <quickdraw.h>
#include <QDAux.h>
#include <misctool.h>
#include <event.h>
#include <control.h>
#include <window.h>
#include <menu.h>
#include <desk.h>
 
#define file_Quit       256
 
/*---------------------- Function Prototypes ----------------------------*/
 
void            main(void);
void            InitMenus(void);
void            HandleMenu(int menuNum);
int              MakeGraphicWindow(char Title[]);
void            ContentUpdate(void);
 
/*----------------------- Global Variables ------------------------------*/
 
ParamList wParams =
        { 78, 0xDDA7, NULL, 0, 0, 615, 25, 188, NULL, 0, 0, 0, 0, 0, 0,
        10, 10, 0, 0, 0, 0, NULL, NULL, NULL, 25, 0, 188, 615, NULL, NULL };
 
int             done;
WmTaskRec       lastEvent;
Rect            tempRect;
LocInfo         LocInfoRec;
char            Pic[16] = {255, 255, 255, 0, 255, 0, 255, 0, 255,
                                                0, 255, 0, 255, 0, 0, 0};
 
/*-----------------------------------------------------------------------*/
 
void main(void)
{
int event;
startdesk (640);
InitMenus ();
ShowCursor ();
lastEvent.wmTaskMask = 0x1FFFL;
done = FALSE;
MakeGraphicWindow("\pThis Is Only A Test");
tempRect.v1 = 0;
tempRect.h1 = 0;
tempRect.v2 = 10;
tempRect.h1 = 128;
LocInfoRec.ptrToPixImage = Pic;
LocInfoRec.portSCB = 128;
LocInfoRec.width = 16;
LocInfoRec.boundsRect.v1 = 0;
LocInfoRec.boundsRect.h1 = 0;
LocInfoRec.boundsRect.v2 = 1;
LocInfoRec.boundsRect.h1 = 64;
 
do {
        event = TaskMaster (0x076E, &lastEvent);
        switch (event) {
                case wInSpecial:        break;
 
                case wInMenuBar:        HandleMenu
                                              ((int)lastEvent.wmTaskData);
                                        break;
 
                default:                break;
                }
        }
while (!done);
enddesk ();
}
 
/*-----------------------------------------------------------------------*/
 
void InitMenus(void)
{
InsertMenu (NewMenu (">> Edit \\N3\r"   /* create the edit menu */
                     "--Undo\\N250V*Zz\r"
                     "--Cut\\N251*Xx\r"
                     "--Copy\\N252*Cc\r"
                     "--Paste\\N253*Vv\r"
                     "--Clear\\N254V\r"
                     ".\r"), 0);
 
InsertMenu (NewMenu (">>  File \\N2\r"  /* create the file menu */
                     "--Open\\N258*Oo\r"
                     "--Close\\N255V*Ww\r"
                     "--Quit\\N256*Qq\r"
                     ".\r"), 0);
 
InsertMenu (NewMenu (">>@\\XN1\r"       /* create the Apple menu */
                     "--About This Program\\N257V\r"
                     ".\r"), 0);
 
FixAppleMenu (1);                       /* add desk accessories */
FixMenuBar ();                             /* draw the completed menu bar */
DrawMenuBar ();
 
}
 
/*-----------------------------------------------------------------------*/
 
void HandleMenu(int menuNum)
{
switch (menuNum) {
        case file_Quit:         done = TRUE;
                                break;
 
        default:                break;
        }
HiliteMenu(FALSE, (int) (lastEvent.wmTaskData >> 16));
}
 
/*-----------------------------------------------------------------------*/
 
int MakeGraphicWindow(char Title[])
{
struct PictRecord *temp;
 
wParams.wTitle = Title;
wParams.wContDefProc = (VoidProcPtr)ContentUpdate;
wParams.wPlane = (GrafPortPtr)topMost;
SetPort(NewWindow(&wParams));
}
 
/*-----------------------------------------------------------------------*/
#pragma databank 1
void ContentUpdate(void)
{
CopyPixels(&LocInfoRec, GetPort(), &LocInfoRec.boundsRect, &tempRect, 0,
                                                           GetVisHandle());
}
#pragma databank 0
 
 
 
Thanx for the help!
 
Ethan Funk
(EAF2239@ritvax.isc.rit.edu)