Visual C++ and MFC Programming 2nd Edition

Chapter 20: List-Based Controls Visual C++ and MFC Fundamentals

The first argument, pdc, specifies the device context on which you are drawing. The

nImage argument is the index of the picture you want to draw. The pt argument is a

POINT or a CPoint value that specifies the location of the new picture. The nStyle

argument is a flag that specifies how the picture will be drawn.

Practical Learning: Using an Image List

1. From the AirCraft folder that accompanies this book, import the following bitmaps
   and change their IDs as follows:

File ID

AH64.bmp IDB_AH64

AH64SIDE.bmp IDB_AH64SIDE

AKIOWA.bmp IDB_AKIOWA

COMANCHE.bmp IDB_COMANCHE

2. In the header file of the view class, declare a private CImageList variable and name
   it ImgList


3. In the header file of the view class, declare another private int variable and name it
   nImage


4. In the constructor of the view class, initialize the image list and the nImage variable
   as follows:

CAirCraft1View::CAirCraft1View()

{

// TODO: add construction code here

ImgList.Create(400, 180, ILC_COLOR, 4, 1);

CBitmap Bmp[4];

Bmp[0].LoadBitmap(IDB_AH64);

ImgList.Add(&Bmp[0], RGB(0, 0, 0));

Bmp[1].LoadBitmap(IDB_AH64SIDE);

ImgList.Add(&Bmp[1], RGB(0, 0, 0));

Bmp[2].LoadBitmap(IDB_AKIOWA);

ImgList.Add(&Bmp[2], RGB(0, 0, 0));

Bmp[3].LoadBitmap(IDB_COMANCHE);

ImgList.Add(&Bmp[3], RGB(0, 0, 0));

nImage = 0;

}

5. In the OnPaint() event of the view class, display an image by calling the
   CImageList::Draw() method as follows:

void CAirCraft1View::OnDraw(CDC* pDC)

{

CAirCraft1Doc* pDoc = GetDocument();

ASSERT_VALID(pDoc);

ImgList.Draw(pDC, nImage, CPoint(255, 255, 255), ILD_NORMAL);

// TODO: add draw code for native data here

}

6. Open the IDR_MAINFRAME menu. Under the Status Bar menu item of View, add a
   separator, followed by a new menu item captioned as &AH64 and press Enter