DlgBase

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

#include <windows.h>
#include "resource.h"

// プロトタイプ宣言
INT_PTR CALLBACK DlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
void OnInitDialog(HWND hDlg);

int WINAPI WinMain(
	HINSTANCE	hInstance,
	HINSTANCE	hPrevInstance,
	LPSTR		lpCmdLine,
	int			nCmdShow)
{
	DialogBox(hInstance, MAKEINTRESOURCE(IDD_DLGBASE), NULL, DlgProc);
	return 0;
}

INT_PTR CALLBACK DlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	BOOL	bRetVal = TRUE;

switch (uMsg) {
	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDC_BTN_HELLO:
			MessageBox(hDlg, "hello, world", "Hello", MB_OK);
			break;
		}
		break;
	case WM_INITDIALOG:
		OnInitDialog(hDlg);
		bRetVal = TRUE;	// TRUEならデフォルトフォーカスを使用
		break;
	case WM_CLOSE:
		EndDialog(hDlg, IDOK);
		break;
	default:
		bRetVal = FALSE;
	}
	return bRetVal;
}

void OnInitDialog(HWND hDlg)
{
	RECT	rcDesktop;
	RECT	rcDialog;

GetWindowRect(GetDesktopWindow(), &rcDesktop);
	GetWindowRect(hDlg, &rcDialog);
	SetWindowPos(hDlg, HWND_TOP,
		(rcDesktop.right - (rcDialog.right - rcDialog.left)) / 2,
		(rcDesktop.bottom - (rcDialog.bottom - rcDialog.top)) / 2,
		0, 0, SWP_NOSIZE);
}

resource.h

DlgBase.rc