mirror of
https://gitee.com/zlgopen/awtk.git
synced 2024-12-05 05:27:58 +08:00
90 lines
1.8 KiB
Markdown
90 lines
1.8 KiB
Markdown
# AWTK 应用程序的入口
|
||
|
||
## 一、背景
|
||
|
||
虽然 main 函数是 C 语言的标准入口,但是不同平台的入口函数仍然有多种不同的形式。比如:
|
||
|
||
* 嵌入式系统用 gui\_app\_start
|
||
* ios/android 用 SDL\_main
|
||
* Linux/MacOS 用 main
|
||
* Windows 用 wWinMain
|
||
|
||
如果希望开发的程序要在多个平台上运行,就需要处理多种入口函数。为了简化这个过程,AWTK 把入口函数的处理封装到 awtk_main.inc 中,开发者只需要 include 进来即可。
|
||
|
||
## 二、基本用法
|
||
|
||
* 实现 application_init 函数
|
||
|
||
```c
|
||
ret_t application_init() {
|
||
/*do sth.*/
|
||
return RET_OK;
|
||
}
|
||
```
|
||
|
||
* 实现 application_exit 函数
|
||
|
||
```c
|
||
ret_t application_exit() {
|
||
log_debug("application_exit\n");
|
||
return RET_OK;
|
||
}
|
||
```
|
||
|
||
* 包含 awtk_main.inc
|
||
|
||
```c
|
||
#include "awtk_main.inc"
|
||
```
|
||
|
||
> 请参考[完整的例子](https://github.com/zlgopen/awtk-c-demos/blob/master/demos/button.c)
|
||
|
||
## 三、高级用法
|
||
|
||
* 指定APP TYPE和窗口大小
|
||
|
||
```c
|
||
#define LCD_WIDTH 800
|
||
#define LCD_HEGHT 600
|
||
#define AWTK_APP_TYPE APP_DESKTOP
|
||
|
||
#include "awtk_main.inc"
|
||
```
|
||
|
||
> 请参考[完整的例子](https://github.com/zlgopen/awtk/blob/master/demos/demo_desktop.c)
|
||
|
||
* 处理命令行参数
|
||
|
||
```c
|
||
static ret_t on_cmd_line(int argc, char* argv[]) {
|
||
script_file = argc == 2 ? argv[1] : "./demos/demoui.js";
|
||
|
||
return RET_OK;
|
||
}
|
||
|
||
#define ON_CMD_LINE on_cmd_line
|
||
|
||
#include "awtk_main.inc"
|
||
```
|
||
> 请参考[完整的例子](https://github.com/zlgopen/awtk-jerryscript/blob/master/src/c/main.c)
|
||
|
||
* 指定应用程序的名称
|
||
|
||
```c
|
||
|
||
#define APP_NAME "AWTK-JS"
|
||
|
||
#include "awtk_main.inc"
|
||
```
|
||
|
||
* 指定缺省字体
|
||
|
||
```c
|
||
|
||
#define APP_DEFAULT_FONT "default_full"
|
||
|
||
#include "awtk_main.inc"
|
||
```
|
||
|
||
> 请参考[完整的例子](https://github.com/zlgopen/awtk-jerryscript/blob/master/src/c/main.c)
|