进度条 游戏中Win32进度条ProcessBar的编码

进度条 游戏中Win32进度条ProcessBar的写法

#include <Windows.h>
#include <commctrl.h>        //InitCommonControls
#pragma comment(lib, "comctl32") //InitCommonControls

//过程函数的返回值都是LRESULT,类型都是CALLBACK
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);
BOOL procflag = TRUE;


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)
{
	HWND hwnd;        //主窗口句柄,在CreateWindow中赋值
	MSG msg;        //消息变量,在GetMessage中使用
	WNDCLASS wndclass;        //窗口类
	TCHAR* szAppName = TEXT("ProgressBar");    //类名和窗口名
	wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);    //窗口背景
	wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);        //鼠标
	wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);    //图标
	wndclass.lpszClassName = szAppName;        //类名
	wndclass.cbClsExtra = 0;        //类的额外参数
	wndclass.cbWndExtra = 0;        //窗口的额外参数.用于基于同一窗口类的窗口各自区分.
	//在自定义对话框类时必须指定为DLGWINDOWEXTRA的大小
	wndclass.lpszMenuName = NULL;    //菜单名.可以用作子窗口的id
	wndclass.style = CS_HREDRAW | CS_VREDRAW;    //窗口风格
	wndclass.lpfnWndProc = WndProc;        //窗口过程
	wndclass.hInstance = hInstance;        //包含窗口过程的实例句柄

	if (!RegisterClass(&wndclass))        //注册窗口类
		return 0;
	hwnd = CreateWindow(                //创建窗口
		szAppName,                //窗口类名
		szAppName,                //窗口标题
		WS_OVERLAPPEDWINDOW,    //窗口风格
		CW_USEDEFAULT,            //初始的x坐标
		CW_USEDEFAULT,            //初始的y坐标
		CW_USEDEFAULT,            //初始的宽度
		CW_USEDEFAULT,            //初始的高度
		NULL,                    //父窗口
		NULL,                    //菜单
		hInstance,                //和窗口相关的实例句柄
		NULL                    //额外参数
		);
	ShowWindow(hwnd, nCmdShow);        //显示窗口
	UpdateWindow(hwnd);                //更新窗口
	while (GetMessage(&msg, NULL, 0, 0))    //消息循环
	{
		TranslateMessage(&msg);            //将WM_XXXKEYXXX消息翻译为WM_CHAR消息
		DispatchMessage(&msg);            //传递消息到窗口过程
	}
	return msg.wParam;                    //返回
}
DWORD ip;

DWORD WINAPI PBThreadProc(LPVOID lpParameter)
{
	HWND hwndPB = (HWND)lpParameter;    //进度条的窗口句柄
	PBRANGE range;                        //进度条的范围

	SendMessage(hwndPB, PBM_SETRANGE,    //设置进度条的范围
		(WPARAM)0, (LPARAM)(MAKELPARAM(0, 150)));

	SendMessage(hwndPB, PBM_GETRANGE,    //获取进度条的范围
		(WPARAM)TRUE,                    //TRUE 表示返回值为范围的最小值,FALSE表示返回最大值
		(LPARAM)&range);

	while (TRUE)
	{
		COLORREF color = RGB(1, 255, 1);
		SendMessage(hwndPB, PBM_SETBKCOLOR, 0, (LPARAM)color);
		SendMessage(hwndPB, PBM_DELTAPOS, //设置进度条的新位置为当前位置加上范围的1/20
			(WPARAM)((range.iHigh - range.iLow) / 20), (LPARAM)0);
		if (SendMessage(hwndPB, PBM_GETPOS, (WPARAM)0, (LPARAM)0) //取得进度条当前位置
			== range.iHigh)
		{
			SendMessage(hwndPB, PBM_SETPOS, (WPARAM)range.iLow, (LPARAM)0); //将进度条复位
			//ExitThread(ip);
		}
		Sleep(100);
	}
}


LRESULT WINAPI WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static HWND hwndPB;
	switch (message)
	{
	case WM_CREATE:
	{
					  InitCommonControls(); //确保已注册了进度条类PROGRESS_CLASS
					  hwndPB = CreateWindowEx(
						  0,
						  PROGRESS_CLASS,
						  NULL,
						  WS_CHILD | WS_VISIBLE,
						  0, 0, 0, 0,            //位置和大小在WM_SIZE中设置
						  hwnd,
						  (HMENU)0,
						  ((LPCREATESTRUCT)lParam)->hInstance,
						  NULL);
					  CreateThread(            //操作进度条的线程
						  NULL,
						  0,
						  (LPTHREAD_START_ROUTINE)PBThreadProc,
						  hwndPB,
						  0,
						  &ip
						  );
					  return 0;
	}
	case WM_SIZE:
	{

					RECT rc;
					GetClientRect(hwnd, &rc);
					MoveWindow(
						hwndPB,
						rc.left,
						(rc.bottom - rc.top) / 4,
						rc.right - rc.left,
						(rc.bottom - rc.top) / 10,
						TRUE
						);
					return 0;
	}
	case WM_DESTROY:
		PostQuitMessage(0);
		return 0;
	}
	return DefWindowProc(hwnd, message, wParam, lParam);
}