Other Window Styles for Combo Box Controls

InstallShield 2016

Project • This information applies to the following project types:

InstallScript
InstallScript MSI
InstallScript Object

The following window style options are available for combo box controls. For additional information, see the MSDN Library.

Window Styles for Combo Box Controls

Value

Description

WS_GROUP

Specifies the first control in a group of controls. All controls defined with this style after the first control belong to the same group.

WS_VSCROLL

Creates a window with a vertical scroll bar.

CBS_SIMPLE

Displays the list box at all times. The current selection in the list box is displayed in the edit control.

CBS_DROPDOWN

Similar to CBS_SIMPLE, except that the list box is not displayed unless the user selects an icon next to the edit control.

CBS_OEMCONVERT

Converts text entered in the combo box edit control from the Windows character set to the OEM character set and then back to the Windows set. This results in proper character conversion when the application calls the CharToOem function to convert a Windows string in the combo box to OEM characters. This style is useful for combo boxes that contain file names and applies only to combo boxes created with the CBS_SIMPLE or CBS_DROPDOWN style.

CBS_HASSTRINGS

Specifies that an owner-drawn combo box contains items consisting of strings. The combo box maintains the memory and address for the strings so the application can use the CB_GETLBTEXT message to retrieve the text for a particular item.

CBS_UPPERCASE

Converts to uppercase all text in both the selection field and the list.

CBS_AUTOHSCROLL

Automatically scrolls the text in an edit control to the right when the user types a character at the end of the line. If this style is not set, only text that fits within the rectangular boundary is allowed.

CBS_DISABLENOSCROLL

Shows a disabled vertical scroll bar in the list box when the box does not contain enough items to scroll. Without this style, the scroll bar is hidden when the list box does not contain enough items.

CBS_NOINTEGRALHEIGHT

Specifies that the size of the combo box is exactly the size specified by the application when it created the combo box. Normally, the system sizes a combo box so that it does not display partial items.

CBS_OWNERDRAWFIXED

Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are all the same height. The owner window receives a WM_MEASUREITEM message when the combo box is created and a WM_DRAWITEM message when a visual aspect of the combo box has changed.

CBS_OWNERDRAWVARIABLE

Specifies that the owner of the list box is responsible for drawing its contents and that the items in the list box are variable in height. The owner window receives a WM_MEASUREITEM message for each item in the combo box when you create the combo box and a WM_DRAWITEM message when a visual aspect of the combo box has changed.

See Also