automatic depth conversion using Bitmap Family

Hi guys, I made a bitmap family that contains only 8 bit color image. Under Palm OS 3.5 debug Rom, if I set the screen depth to 4 bit or 2 bit, it seems to convert the color image in the bitmap family into grey scale image in proper depth. so, I thought it is very cool, because I don't need to

problem in overwriting an existing app by beaming

Hi, guys, here is the situation; If I beam an application using palm's default launcher, and the receiving device already has that application, the following is the normal procedure. - Do you want to accept *** into applications? - The *** application already exists. Do you want to

how to set button frame type dynamically

Hi guys, I need to create a button with no frame dynamically. I was able to create it, but the button was created with standard frame. I wanted to change the button frame type (i.e. from standardButtonFrame to noButtonFrame) but there seems to be no such function to change this, according to the

what can drain the new batteries in 3 days?

Hi guys, I feel certain applications drain batteries more quickly than others. what are the most power-consuming processes under Palm OS? I undersand keeping the backlight on is one of them, but besides that, lets say, does running thousands of loop consumes much power? or lots of memory

free space required for beaming

Hi guys, does anyone know the exact formula to calculate the free space required for beaming application? suppose the application size is 112K. suppose a user has installed the app, and now he has only 10K free space available. beaming fails displaying the lack of memory message. so, he

How is text field API implemented?

Hello, is there any source for how text field API is implemented? I wonder if it is drawing the string in an offscreen buffer then draw the parts of it when we scroll the scroll bar... If it is so, where does it allocate the offscreen buffer? in a dynamic heap for the app or for the OS? is that

Gremlin crashes saying Field.c, Line:121, Invalid word wrapping info

Hello, while running gremlins under Palm OS 3.0 debug Rom (Emulator version 3.1), it crashed when it was writing something on the text field, saying Field.c, Line:121, Invalid word wrapping info. what can possibly cause this problem? could it be due to a mistake in scrollbar implementation?

html-browser-like rendering engine

Hi guys, how hard would it going to be to build a rendering engine like html-browser? (with formatted text, different fonts, and possibly some images...) If you have any experience of developing this kind of engine, please give me some tips... (I guess the engine is going to use a lot of

File Streaming API

Hi guys, I have some questions... What kinds of applications are using the file streaming API? Does it have something to do with the streaming bit of palm database? If I create a file on a desktop, and load it on a palm, can an application read that file using file streaming API? Is there

How does Combiner work?

Hello, masters, I have been looking for a tool to generate installable package that can deliever prc and pdbs as a single prc, and learned that Combiner is exactly what I was looking for. However, when I tested the trial version of Combiner I found a serious problem with it. In case