home *** CD-ROM | disk | FTP | other *** search
- #include "environment.h"
- #include "apple events.h"
- #include "error.h"
- #include "program globals.h"
- #include "GestaltEqu.h"
- #include "Traps.h"
-
- Boolean gHasColorQD; /* color Quickdraw present? */
- Boolean gHasNotificationManager; /* notification manager present? (cf error.c) */
-
- short gForegroundWaitTime; /* WaitNextEvent sleep time while in frgrnd */
- short gBackgroundWaitTime; /* WaitNextEvent sleep time while in bkgrnd */
- Boolean gIsInBackground; /* program is in background currently? */
- Boolean gInProgress; /* progress bar up? */
- Boolean gDone; /* program done? */
- Boolean gFrontWindowIsOurs; /* frontmost window is one of ours? */
- short gFrontWindowIndex; /* gTheWindowData[] index of front window, if ours */
- Boolean gIsVirgin; /* first time running? */
- Boolean gCustomCursor; /* front window is using custom cursor ? */
- short gKludgeIter;
- Boolean gNeedToOpenWindow;
-
- /* This is to stop the compiler from using Gestalt glue without killing
- all the other pre-system 7 glue for other routines. */
- #pragma parameter __D0 RealGestalt(__D0,__A1)
- pascal OSErr RealGestalt(OSType selector,long *response) = {0xA1AD,0x2288};
- #define Gestalt RealGestalt
- #define GESTALT_TRAP 0xA1AD /* _Gestalt */
-
- #define GetTrapType(T) (((T & 0x0800) > 0) ? ToolTrap : OSTrap)
- #define NumToolboxTraps() ((NGetTrapAddress(_InitGraf, ToolTrap) == \
- NGetTrapAddress(0xAA6E, ToolTrap)) ? 0x0200 \
- : 0x0400)
-
- Boolean TrapAvailable(short theTrap);
-
- Boolean TrapAvailable(short theTrap)
- {
- TrapType tType;
-
- tType=GetTrapType(theTrap);
- if (tType==ToolTrap)
- {
- theTrap=theTrap&0x07FF;
- if (theTrap>=NumToolboxTraps())
- theTrap=_Unimplemented;
- }
- return (NGetTrapAddress(theTrap, tType)!=NGetTrapAddress(_Unimplemented, ToolTrap));
- }
-
- Boolean InitTheEnvironment(void)
- /* called very early -- this uses Gestalt to check out the computing environment;
- see above for explanations of variables */
- {
- long gestalt_temp;
- OSErr isHuman;
- SysEnvRec theWorld;
-
- if (SysEnvirons(1, &theWorld)==envNotPresent)
- return FALSE;
-
- if (!TrapAvailable(_WaitNextEvent))
- return FALSE;
-
- if (!TrapAvailable((short)GESTALT_TRAP))
- return FALSE;
-
- isHuman=Gestalt(gestaltSystemVersion, &gestalt_temp);
- if (isHuman || (gestalt_temp < 1792))
- return FALSE;
-
- isHuman=Gestalt(gestaltQuickdrawVersion, &gestalt_temp);
- gHasColorQD=!(isHuman || (gestalt_temp < gestalt8BitQD));
-
- isHuman=Gestalt(gestaltFSAttr, &gestalt_temp);
- if (!((isHuman==noErr) && (gestalt_temp&(1<<gestaltHasFSSpecCalls))))
- return FALSE;
-
- isHuman=Gestalt(gestaltStandardFileAttr, &gestalt_temp);
- if (!((isHuman==noErr) && (gestalt_temp&(1<<gestaltStandardFile58))))
- return FALSE;
-
- isHuman=Gestalt(gestaltNotificationMgrAttr, &gestalt_temp);
- gHasNotificationManager=(!((isHuman) ||
- (((gestalt_temp >> gestaltNotificationPresent) & 0x01) != 1)));
-
- isHuman=Gestalt(gestaltAppleEventsAttr, &gestalt_temp);
- if (!((!isHuman) && (gestalt_temp&(1<<gestaltAppleEventsPresent))))
- return FALSE;
-
- InstallRequiredAppleEvents();
-
- gForegroundWaitTime=10; /* WaitNextEvent sleep time when we're in frgrnd */
- gBackgroundWaitTime=100; /* WaitNextEvent sleep time when we're in bkgrnd */
- gDone=FALSE; /* TRUE if program is done (exit event loop) */
- gInProgress=FALSE; /* TRUE if progress bar is up */
- gIsInBackground=FALSE; /* TRUE if program is in background */
- gPendingResultCode=allsWell; /* set to error code if error occurs while in bkgrnd */
- gFrontWindowIsOurs=FALSE;
- gFrontWindowIndex=0;
- gCustomCursor=FALSE;
- gKludgeIter=0;
- gNeedToOpenWindow=TRUE;
-
- return TRUE;
- }
-