IMGBUTTON and IMGBUTTONX control styles

%SS_BITMAP

Display only bitmap images. Also see %SS_ICON. (persistent)

%BS_DEFAULT 

Create the button with a heavy black border. The user can select this button by pressing the ENTER key. This style is useful for enabling the user to quickly select the most likely option. There may only be one Default button per dialog.

%BS_FLAT

Create a flat button without the raised 3D look.

%BS_ICON

Display only icon images. Also see %BS_BITMAP. (persistent)

%BS_NOTIFY

Enable a button to send the %BN_KILLFOCUS and %BN_SETFOCUS notification messages to the button Callback Function.

%WS_DISABLED

Create a control that is initially disabled. A disabled control cannot receive input from the user.

%WS_GROUP

Define the start of a group of controls. The first control in each group should also use %WS_TABSTOP style. The next %WS_GROUP control in the tab order defines the end of this group and the start of a new group. Groups configured this way permit the arrow keys to shift focus between the controls within the group, and focus can jump from group to groups with the usual TAB and SHIFT+TAB keys. Both tab stops and groups are permitted to wrap from the end of the tab order back to the start.

%WS_TABSTOP

Allow the image button control to receive keyboard focus when the user presses the TAB and SHIFT+TAB keys. The TAB key shifts keyboard focus to the next control with the %WS_TABSTOP style, and SHIFT+TAB shifts focus to the previous control with %WS_TABSTOP. (default)

%WS_EX_LEFT

The control has generic "left-aligned" properties. (default)

%WS_EX_RIGHT

The control has generic "right-aligned" properties. This style has an effect only if the shell language is Hebrew, Arabic, or another language that supports reading order alignment.

%WS_EX_TRANSPARENT

Controls/windows beneath the dialog are drawn before the dialog is drawn. The dialog is deemed transparent because elements behind the dialog have already been painted - the dialog itself is not drawn differently. True transparency is achieved by using Regions - see MSDN and/or the Platform SDK documentation for more information.