Advanced MFC Programming

Chapter 14. Views
}
if
(
)
{
}
if
(
)
{
}
TRACE0("Failed to CreateStaticSplitter\n");
return FALSE;
!m_wndSplitter.CreateView
(
0, 0, RUNTIME_CLASS(CDirFormView), CSize(100, 100), pContext
)
TRACE0("Failed to create first pane\n");
return FALSE;
!m_wndSplitter.CreateView
(
0, 1, RUNTIME_CLASS(CExplorerView), CSize(100, 100), pContext
)
TRACE0("Failed to create first pane\n");
return FALSE;
}
return TRUE;
Functions CSplitterWnd::CreateStatic(…) and CSplitterWnd::CreateView(…) are called to create
the splitter window and each individual pane. Please note that we must include “afxcview.h” in the header
files of both class CExplorerView and CDirView, otherwise the compilation will generate errors.
The only result of this sample is a two-way splitted window. We will add further features in the next
several sections.
14.4 Simple Explorer, Step 2: List Drives
Sample 14.4\Explorer is based on sample 14.3\Explorer.
We will display four types of items in the tree view window (left pane of splitter window): desktop,
computer, drives, directories. The root node is desktop node, and there will be only one such type of node.
Under the desktop node, there will be a computer node, which lists the computer name. Under the computer
node, all the available drives will be listed, under each drive node, directories will be listed. With this
structure, the file system of the whole computer can be displayed.
Creating Image List
Each node can have a label and also an associated image. Although they both are optional features,
implementing them can make our application look more professional. To use images, we must create an
image list and select it into the tree control. The image list can be created from either DIB images or icons.
As we know from Chapter 5, the simplest way to create image list is to prepare images as the resources
then load them at run time. In the sample, five images are prepared for the tree control, whose usage is
listed in the following table:
ID
IDB_BITMAP_DESKTOP
IDB_BITMAP_COMPUTER
IDB_BITMAP_HARD
IDB_BITMAP_OPENFOLDER
Usage
Desktop node
Computer node
Node for displaying a drive
Node for displaying an opened (expanded) file folder
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