Hi,
This is my first time using any Apple specific APIs and i'm somewhat
new to C too so if any of my questions seem kinda stupid keep that in
mind :)
I am trying to add an Carbon interface to a small existing program and
I'm having trouble getting the browse for file thing to work. I have
done some searching and found that NavCreateGetFileDialog() or
NavCreateChooseFileDialog() should be used, and i have gotten it to the
point that i can open the application with the main window, click
browser, open the browse dialog, and then thats where i have a problem,
my application needs ASCII input files (they just consist of spaces,
tabs and numbers) and the files have no extension, i would preferably
like to be able to show only ASCII text files, but i would settle for
anything that lets me select a file at this point as right now every
file type i put in seem to have no affect at all. Every file shows up
all grayed out and i cannot select any file.
Also can anyone point me something that talk about the basics for
coding on a Mac/Carbon, i spent far too much time trying to figure out
what a NavListTypeHandle was, same goes with learning about CFSTR() and
OSType, is there any documentation that gives an overview of these core
functions and types that everything needs for even the simple tasks?
Thanks in advanced
here is my relevant code:
....a few static variables
//our open file dialogs
static NavDialogRef OpenFileRef;
//hold the file types that may be opened and related info
static NavTypeListHandle hTypeList;
static NavReplyRecord replyNav;
int main(blah){
...some code to initialize some thing...
//for the file open dialog, we need these
fileOpenStatus = NavGetDefaultDialogCreationOptions (&fileOpenOptions);
fileOpenOptions.clientName = CFSTR("Supply & Demand");
//we can pick any file type
hTypeList = (NavTypeListHandle)NewHandleClear(sizeof(NavTypeList) +
sizeof(OSType));
HLock ((Handle) hTypeList);
(**hTypeList).componentSignature = kNavGenericSignature;
(**hTypeList).osTypeCount = 2;
(**hTypeList).osType[0] = 'TEXT';
//UTGetOSTypeFromString(CFSTR("TEXT"));
(**hTypeList).osType[1] = '????';
HUnlock((Handle) hTypeList);//let it more a bit
....code to start/run the interface...
}
static OSStatus AppEventHandler(blah){
..inside switch() for the "Browse" button
NavCreateGetFileDialog(&fileOpenOptions, hTypeList, NULL, NULL,
NULL, NULL, &OpenFileRef);
NavDialogRun (OpenFileRef);
..cleanup code is not in yet, i'll add it when i can select files
}
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