DVX_GUI/sdk/samples/hello/hello.c

83 lines
1.8 KiB
C

// hello.c -- Minimal DVX application
//
// Demonstrates:
// - App descriptor and entry point
// - Window creation with widgets
// - Resource loading (reading embedded strings from .res)
// - Message box display
//
// Build: see makefile
// Deploy: copy hello.app to APPS/<vendor>/HELLO/ on the target.
#include "dvxApp.h"
#include "dvxWgt.h"
#include "dvxWm.h"
#include "dvxRes.h"
#include "shellApp.h"
#include "button/button.h"
#include "label/label.h"
#include "box/box.h"
#include <stdio.h>
// App descriptor — exported to the shell
AppDescriptorT appDescriptor = {
.name = "Hello",
.hasMainLoop = false,
.multiInstance = false,
.stackSize = 0,
.priority = 0
};
static AppContextT *sAc = NULL;
static DxeAppContextT *sCtx = NULL;
static WindowT *sWin = NULL;
static void onClose(WindowT *win) {
dvxDestroyWindow(sAc, win);
sWin = NULL;
}
static void onButtonClick(WidgetT *w) {
(void)w;
// Read the custom "greeting" resource from our .app file
uint32_t size = 0;
void *data = dvxResRead(dvxResOpen(sCtx->appPath), "greeting", &size);
if (data) {
dvxMessageBox(sAc, "Hello", (const char *)data, MB_OK | MB_ICONINFO);
free(data);
} else {
dvxMessageBox(sAc, "Hello", "Hello from DVX!", MB_OK | MB_ICONINFO);
}
}
int32_t appMain(DxeAppContextT *ctx) {
sCtx = ctx;
sAc = ctx->shellCtx;
sWin = dvxCreateWindow(sAc, "Hello World", 100, 80, 240, 120, true);
if (!sWin) {
return -1;
}
sWin->onClose = onClose;
WidgetT *root = wgtInitWindow(sAc, sWin);
if (root) {
wgtLabel(root, "Welcome to DVX!");
WidgetT *btn = wgtButton(root, "Click Me");
if (btn) {
btn->onClick = onButtonClick;
}
}
return 0;
}