Hi!
This must have been the most difficult thing I�ve ever done. I can�t get
anything to happen.
For example I can�t use the compiler.
I have the following saved as a file called hello.cpp:
#include <Pilot.h>
#include "HelloRsc.h" // resource definitions (created by Constructor)
// === prototypes ===
static Boolean StartApplication(void);
static void StopApplication(void); //
clean up before app exit
static Boolean ApplicationHandleEvent(EventPtr event); // handle form load
events
static void EventLoop(voidg); // the
event loop
static Boolean MainFormHandleEvent(EventPtr event); // handle events for
the main form
//========================================================================
// StartApplication() initializes anything the program needs at startup,
// and switches the the applications main form.
//
// It returns an error code if there's an error, or false (0) if there is
// no error.
//
static Boolean StartApplication(void)
{
FrmGotoForm(MainForm); // start the first
form.
return false;
}
//========================================================================
// StopApplication() saves any shut-down information and closes all the
// forms.
//
//
static void StopApplication(void)
{
FrmCloseAllForms();
}
//========================================================================
// MainFormHandleEvent() processes events when the main form is active.
//
// Returns true if the event was handled, false if it was not.
//
//
static Boolean MainFormHandleEvent(EventPtr event)
{
Boolean handled = false;
FormPtr frm;
char * pStr;
switch (event->eType) {
case ctlSelectEvent: // control button was pressed and
released.
if (event->data.ctlEnter.controlID == MainHelloAgainButton) {
// write "hello again" to the current form
pStr = "Hello, Again!";
WinDrawChars(pStr, StrLen(pStr), ((160-FntCharsWidth(pStr,
StrLen(pStr)))/2), 80);
handled = true;
}
break;
case frmOpenEvent: // opening the form -
initialize it
frm = FrmGetActiveForm(); // get a pointer to the form
for identification
FrmDrawForm(frm); // draw the form
handled = true;
break;
case menuEvent: // a menu item was selected
// Since there's only one menu item (the "about" screen), do
it.
MenuEraseStatus(0); // first clear the
menu from the display
frm = FrmInitForm(AboutForm); // load the About form
FrmDoDialog(frm); // display it and wait
for the "ok" button
FrmDeleteForm(frm); // and delete the form
(going back to MainForm)
handled = true;
break;
}
return(handled);
}
//========================================================================
// ApplicationHandleEvent() watches for frmLoadEvent events; it then sets
// the appropriate event handler for the form. (we only have one form
// event handler)
//
// Returns true if the event was handled, false if it was not.
//
//
static Boolean ApplicationHandleEvent(EventPtr event)
{
FormPtr frm;
Int formId;
Boolean handled = false;
if (event->eType == frmLoadEvent) {
// Load the form resource specified in the event,
// then activate the form.
formId = event->data.frmLoad.formID; // get the form ID number
frm = FrmInitForm(formId); // load it,
getting the form's pointer
FrmSetActiveForm(frm); // now OS
sends events to this form
// Set the event handler for the form. The handler of the
// currently active form is called by FrmDispatchEvent each
// time it receives an event.
switch (formId) {
case MainForm:
FrmSetEventHandler(frm, MainFormHandleEvent);
break;
}
handled = true;
}
return handled;
}
//========================================================================
// EventLoop() simply gets the next event and hands it to each event
// handler in line until one of them does something with it.
// Stays in the loop until a stop event.
//
//
static void EventLoop(void)
{
EventType event;
Word error;
do
{
EvtGetEvent(&event, evtWaitForever); // get next
event
if (! SysHandleEvent(&event)) // do
system events
if (! MenuHandleEvent(0, &event, &error)) // do
menu-handling events
if (! ApplicationHandleEvent(&event)) // watch for
change of form
FrmDispatchEvent(&event);
// events for current form
}
while (event.eType != appStopEvent);
}
//========================================================================
// PilotMain() is called by Palm OS to start an application
//
// arguments:
// cmd = launch code; how/why the application was
started
// cmdPBP = parameter block for the command
// launchFlags = additional flags
//
// Returns 0 or an error code
//
//
DWord PilotMain(Word cmd, Ptr cmdPBP, Word launchFlags)
{
// check for a normal launch; we won't do anything for any
// other launch code
if (cmd == sysAppLaunchCmdNormalLaunch) {
if (!StartApplication()) { // setup and
initialization
EventLoop(); // do
the event loop
StopApplication(); // do
any clean-up before exiting
}
}
return 0;
}
I got the file in a directory called test.
if I would like to compile this, how do I do?
Can I use the command prompt (I have windows-2000) or do I have to use
cygwin B20?
I tried to write this: m68k-palmos-gcc hello.cpp
I got the message: Installation problem cannot exec 'cpp': No such file or
directory.
Please help me if you can, I would be very grateful
Maria
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