Visual C++ and MFC Programming 2nd Edition

Chapter 12: Dialog-Based Windows Visual C++ and MFC Fundamentals

that default. If for any reason you want to display a button on the Taskbar for the tool

window, add the WS_EX_APPWINDOW extended style.

WS_EX_TOPMOST: If you want your window to stay on top of another or other

windows, you have two choices. If the window you are creating, such as a dialog box, is

being added to a frame-based or a form-based application and you want that window to

always be on top of its parent window, add the WS_VISIBLE style to it and display it

using ShowWindow(SW_SHOW). If you want the window to always be on top of all

other windows regardless of their applications, add the WS_EX_TOPMOST extended

style to it.

WS_EX_CLIENTEDGE: A window appears sunken when its body is sunk with regards

to its borders. To create a dialog box with a sunken body, at design time, check its Client

Edge check box or set it to True:

This is equivalent to applying the WS_EX_CLIENTEDGE style

WS_EX_WINDOWEDGE: A window can have an inside body that appears to be raised

with regards to its borders. Such a window can be created by adding the

WS_EX_WINDOWEDGE style.

WS_EX_STATICEDGE: To create a window with a 3-dimensional thin border, at

design time, check its Static Edge check box or set it to True. This is the same as adding

the WS_EX_STATICEDGE.

WS_EX_PALETTEWINDOW: To create a dialog box that has a raised border and

stays on top of others, which is equivalent to combining the WS_EX_WINDOWEDGE

and the WS_EX_TOPMOST styles, in the resource file, add the

WS_EX_PALETTEWINDOW value in the EXSTYLE line

WS_EX_OVERLAPPEDWINDOW: A window is referred to as overlapped when it

presents a combination of a sunk and a raised edge. Such a window can be created by

either combining the WS_EX_CLIENTEDGE and the WS_EX_WINDOWEDGE

styles or by using the WS_EX_OVERLAPPEDWINDOW.

WS_EX_ACCEPTFILES: If you are creating a dialog box that will be accepting files

dragged from other window, at design time, check the Accept Files check box or set it to

True. You can also do this in the resource file by adding the WS_EX_ACCEPTFILES

extended style.