TVOT_COMBOBOX
Important
The modern print platform is Windows' preferred means of communicating with printers. We recommend that you use Microsoft's IPP inbox class driver, along with Print Support Apps (PSA), to customize the print experience in Windows 10 and 11 for printer device development.
For more information, see Modern print platform and the Print support app design guide.
The TVOT_COMBOBOX option type consists of a combo box inside a group box.
OPTITEM structure
Sel/pSel
Index into the OPTPARAM array that is pointed to by the pOptParam member of the option's OPTTYPE structure. This specifies the currently selected option parameter.
OPTPARAM structure array (pOptParam member of OPTTYPE)
pData
pOptParam[0]->pData points to the first text string to be displayed in the combo box. pOptParam[1]->pData points to the second text string to be displayed in the combo box. pOptParam[n]->pData points to the nth text string to be displayed in the combo box.
IconID
pOptParam[0]->IconID identifies an icon to be associated with the first text string. pOptParam[1]->IconID identifies an icon to be associated with the second text string. pOptParam[n]->IconID identifies an icon to be associated with the nth text string.
lParam
Not used.
OPTTYPE structure
Type
TVOT_COMBOBOX
Count
The number of OPTPARAM structures; that is, the number of text strings to be displayed in the combo box.
Style
The following optional bit flags can be specified.
| Flag | Description |
|---|---|
| OTS_LBCB_INCL_ITEM_NONE | If set, CPSUI includes a "None" string in the combo box. If a user selects "None", the Sel/pSel union is set to negative one. |
| OTS_LBCB_NO_ICON16_IN_ITEM | If set, CPSUI does not draw each option parameter's icon (IconID in OPTPARAM) when displaying the parameter's value in the combo box. |
| OTS_LBCB_PROPPAGE_CBUSELB | When the option is displayed on a non-treeview property sheet page, it is displayed as a listbox instead of a combobox. |
| OTS_LBCB_SORT | If set, CPSUI displays text strings in alphabetic order. |
BegCtrlID
If pDlgPage in COMPROPSHEETUI identifies a CPSUI-supplied page, or if DlgTemplateID in DLGPAGE identifies a CPSUI-supplied template, BegCtrlID is not used. Otherwise, BegCtrlID must contain the first control identifier of a sequentially numbered set of control identifiers. Control identifiers must identify the following Windows controls:
| Control Identifier | Windows Control |
|---|---|
| BegCtrlID contents | Group box |
| BegCtrlID contents+1 | Title text |
| BegCtrlID contents+2 | Combo box |
| BegCtrlID contents+3 | Combo box icon |
| BegCtrlID contents+4 | Extended check box or extended push button (optional) |
| BegCtrlID contents+5 | Extended check box or extended push button icon (optional) |
For additional information, see Customizing CPSUI-Supported Window Controls.
Requirements
Header: compstui.h (include Compstui.h)