StatusBar

Visual C++ 2005 Express Edition
Windows Server 2003 SP1 Platform SDK
Windowsアプリケーション / 空のプロジェクト

// マルチバイト文字セット
// comctl32.lib

#include <windows.h>
#include <commctrl.h>

#define APPNAME	"StatusBar"

#define IDC_WND_STATUS	1

// グローバル変数
static HINSTANCE	g_hInstance;
static HWND			g_hWndStatus;

// プロトタイプ宣言
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
void OnPaint(HWND hWnd);
void OnCreate(HWND hWnd);

int WINAPI WinMain(
	HINSTANCE	hInstance,
	HINSTANCE	hPrevInstance,
	LPSTR		lpCmdLine,
	int			nCmdShow)
{
	char acAppName[] = APPNAME;
	WNDCLASSEX	wcex;
	HWND		hWnd;
	MSG			msg;

g_hInstance = hInstance;

wcex.cbSize			= sizeof(WNDCLASSEX);
	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= g_hInstance;
	wcex.hIcon			= LoadIcon(NULL, IDI_APPLICATION);
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW + 1);
	wcex.lpszMenuName	= NULL;
	wcex.lpszClassName	= acAppName;
	wcex.hIconSm		= LoadIcon(NULL, IDI_APPLICATION);
	RegisterClassEx(&wcex);

hWnd = CreateWindow(
		acAppName,			// ClassName
		acAppName,			// WindowName
		WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT,		// x
		CW_USEDEFAULT,		// y
		CW_USEDEFAULT,		// Width
		CW_USEDEFAULT,		// Height
		NULL,				// WndParent
		NULL,				// Menu
		g_hInstance,
		NULL);				// Param
	if (hWnd == NULL) {
		return 0;
	}

ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

while (GetMessage(&msg, NULL, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

return (int)msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg) {
	case WM_PAINT:
		OnPaint(hWnd);
		break;
	case WM_SIZE:
		SendMessage(g_hWndStatus, WM_SIZE, wParam, lParam);
		break;
	case WM_CREATE:
		OnCreate(hWnd);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, uMsg, wParam, lParam);
	}
	return 0;
}

void OnPaint(HWND hWnd)
{
	PAINTSTRUCT	ps;
	HDC		hdc;
	RECT	rcClient;
	RECT	rcStatus;
	int		iWidth;
	int		iHeight;

hdc = BeginPaint(hWnd, &ps);

GetClientRect(hWnd, &rcClient);
	GetWindowRect(g_hWndStatus, &rcStatus);
	iWidth	= rcClient.right;
	iHeight	= rcClient.bottom - (rcStatus.bottom - rcStatus.top);

MoveToEx(hdc, 0, 0, NULL);
	LineTo(hdc, iWidth, iHeight);

EndPaint(hWnd, &ps);
}

void OnCreate(HWND hWnd)
{
	INITCOMMONCONTROLSEX	icc;

icc.dwSize	= sizeof(INITCOMMONCONTROLSEX);
	icc.dwICC	= ICC_BAR_CLASSES;
	InitCommonControlsEx(&icc);

g_hWndStatus = CreateStatusWindow(
		WS_CHILD | WS_VISIBLE | CCS_BOTTOM | SBARS_SIZEGRIP,
		NULL, hWnd, IDC_WND_STATUS);
	SendMessage(g_hWndStatus, SB_SIMPLE, TRUE, 0);
	SendMessage(g_hWndStatus, SB_SETTEXT, 255 | 0, (LPARAM)"hello, world");
}