/* ** $Id: cursordemo.c,v 1.3 2003/06/13 06:50:39 weiym Exp $**** Listing 25.3**** cursordemo.c: Sample program for MiniGUI Programming Guide**      Demo of using cursor**** Copyright (C) 2003 Feynman Software.**** License: GPL*/#include <minigui/common.h>#include <minigui/minigui.h>#include <minigui/gdi.h>#include <minigui/window.h>#include <minigui/control.h>#define IDC_TRAP    100static HWND hTrapWin, hMainWnd;static RECT rcMain, rc;static int TrapwindowProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam){    static BOOL bTrapped = FALSE;    switch (message) {    case MSG_MOUSEMOVE:        if (!bTrapped) {            GetWindowRect(hWnd, &rc);            ClientToScreen(hMainWnd, &rc.left, &rc.top);            ClientToScreen(hMainWnd, &rc.right, &rc.bottom);            ClipCursor(&rc);            bTrapped = TRUE;        }        break;    }    return DefaultControlProc(hWnd, message, wParam, lParam);}BOOL RegisterTrapwindow (void){    WNDCLASS WndClass;    WndClass.spClassName = "trap";    WndClass.dwStyle     = 0;    WndClass.dwExStyle   = 0;    WndClass.hCursor     = GetSystemCursor(IDC_HAND_POINT);    WndClass.iBkColor    = PIXEL_black;    WndClass.WinProc     = TrapwindowProc;    return RegisterWindowClass (&WndClass);}static int CursordemoWinProc(HWND hWnd, int message, WPARAM wParam, LPARAM lParam){    switch (message) {    case MSG_CREATE:        RegisterTrapwindow();        hTrapWin = CreateWindow("trap", "", WS_VISIBLE | WS_CHILD, IDC_TRAP,                 10, 10, 100, 100, hWnd, 0);        break;    case MSG_LBUTTONDOWN:        GetWindowRect(hWnd, &rcMain);        ClipCursor(&rcMain);        ShowCursor(FALSE);        break;    case MSG_RBUTTONDOWN:        ShowCursor(TRUE);        break;    case MSG_SETCURSOR:        SetCursor (GetSystemCursor (IDC_IBEAM));        return 0;    case MSG_CLOSE:        DestroyAllControls (hWnd);        DestroyMainWindow (hWnd);        PostQuitMessage (hWnd);        return 0;    }    return DefaultMainWinProc(hWnd, message, wParam, lParam);}int MiniGUIMain (int args, const char* arg[]){    MSG Msg;    MAINWINCREATE CreateInfo;#ifdef _LITE_VERSION    SetDesktopRect(0, 0, 1024, 768);#endif        CreateInfo.dwStyle = WS_VISIBLE | WS_BORDER | WS_CAPTION;    CreateInfo.dwExStyle = WS_EX_NONE;    CreateInfo.spCaption = "demo of using cursor";    CreateInfo.hMenu = 0;    CreateInfo.hCursor = GetSystemCursor(0);    CreateInfo.hIcon = 0;    CreateInfo.MainWindowProc = CursordemoWinProc;    CreateInfo.lx = 0;    CreateInfo.ty = 0;    CreateInfo.rx = 320;    CreateInfo.by = 240;    CreateInfo.iBkColor = COLOR_lightwhite;    CreateInfo.dwAddData = 0;    CreateInfo.hHosting = HWND_DESKTOP;        hMainWnd = CreateMainWindow (&CreateInfo);        if (hMainWnd == HWND_INVALID)        return -1;    ShowWindow(hMainWnd, SW_SHOWNORMAL);    while (GetMessage(&Msg, hMainWnd)) {        TranslateMessage(&Msg);        DispatchMessage(&Msg);    }    MainWindowThreadCleanup (hMainWnd);    return 0;}#ifndef _LITE_VERSION#include <minigui/dti.c>#endif