//////////////////////////////////////////////////////////////////// // Hello World! と書き込みます。 void WriteHello( HWND p_hPaintWnd ) { HDC hPaintDC; PAINTSTRUCT stPaint; char chHello[] = "Hello, world!"; hPaintDC = BeginPaint( p_hPaintWnd, &stPaint ); TextOut( hPaintDC, 0, 0, chHello, strlen( chHello ) ); EndPaint( p_hPaintWnd, &stPaint ); return; } WM_PAINT さて、前回見たように、今回のWriteHello()という関数は、ウィンドウにWM_