Hello to all members and developers.
Thank you for keeping Growl a great and essential tool for Mac users,
especially us "switchers"!
I am an inexperienced Xcode programmer, and just today finished
"porting" some old code from Visual C++ (Windows) of a personal
reminder tool that I wanted to use on Mac (10.6.x).
Thanks to Growl, I don't have to design "balloon notifications" (à la
Windows toolbar) so for my tool, Growl is *essential* to be present in
the system (otherwise I have to use ugly dialog messages!)
In the Growl developer's documentation page, there is only (sample)
code to check if the Growl.framework is loaded OK by the application,
then self-register as the Growl delegate.
What is *not* mentioned, is how to check a system-wide installation of
Growl.
I personally did it the "newbie" way and wanted to ask the developers
for a more "official" solution!
My code checks for the presence of two Growl files in /private/var/db/
receipts/ that are supposedly created after a *proper* installation of
Growl (probably 1.2.1 at least) in AppDelegate.m:
+(void)initialize
{
// Check if Growl is installed
NSString *growlBOMPath = @"/private/var/db/receipts/
com.growl.growl.pkg.bom";
NSString *growlReceiptPath = @"/private/var/db/receipts/
com.growl.growl.pkg.plist";
NSData *growlBOMData = [NSData dataWithContentsOfFile:growlBOMPath];
NSData *growlReceiptData = [NSData
dataWithContentsOfFile:growlReceiptPath];
if (![growlBOMData length] || ![growlReceiptData length])
{
// Growl is not (properly) installed
NSAlert *warnCalendar = [NSAlert alertWithMessageText:
[[NSRunningApplication currentApplication] localizedName]
defaultButton: @"Exit" alternateButton: nil otherButton: nil
informativeTextWithFormat: @""];
[warnCalendar setAlertStyle:NSCriticalAlertStyle];
[warnCalendar setInformativeText: @"Growl framework was not
found on
your system! Please install Growl frist from www.growl.info!"];
// Display warning then terminate application
[warnCalendar runModal];
[NSApp terminate:self];
}
else
{
// Growl is apparently installed
NSLog(@"File com.growl.growl.pkg.bom has size %i bytes",
[growlBOMData length]);
NSLog(@"File com.growl.growl.pkg.plist has size %i bytes",
[growlReceiptData length]);
}
}
A solution for a proper and more viable (and update-robust) solution
is very appreciated! Hopefully this can be added to the Growl
developers documentation!
Thanks to all.
Regards from Athens, Greece
Konstantinos
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