程式語言 - uC/GUI - Create Window

參考資訊：
https://github.com/piyushpandey013/ucGUI
https://github.com/yongzhena/ucgui-linux

main.c

#include "GUI.h"
#include "WM.h"

static void WndProc(WM_MESSAGE* pMsg)
{
    int x = 0;
    int y = 0;
    GUI_RECT rt = { 0 };

    switch (pMsg->MsgId) {
    case WM_PAINT:
        WM_GetInsideRect(&rt);
        GUI_SetBkColor(GUI_RED);
        GUI_SetColor(GUI_GREEN);
        GUI_ClearRectEx(&rt);
        GUI_DrawRectEx(&rt);
        GUI_SetColor(GUI_WHITE);
        GUI_SetFont(&GUI_Font24_ASCII);
        x = WM_GetWindowSizeX(pMsg->hWin);
        y = WM_GetWindowSizeY(pMsg->hWin);
        GUI_DispStringHCenterAt("Window", x / 2, (y / 2) - 12);
        break;
    default:
        WM_DefaultProc(pMsg);
    }
}

int main(int argc, char *argv[])
{
    WM_HWIN hWin = 0;

    GUI_Init();
    hWin = WM_CreateWindow(100, 100, 100, 100, WM_CF_SHOW | WM_CF_MEMDEV, WndProc, 0);
    GUI_Delay(1000);
    WM_DeleteWindow(hWin);

    GUI_Delay(3000);
    return 0;
}

編譯、執行

$ gcc main.c -o main libucgui.a -IGUI_X -IGUI/Core -IGUI/Widget -IGUI/WM -lSDL
$ ./main