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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)