TCITEMW structure (commctrl.h)

Specifies or receives the attributes of a tab item. It is used with the TCM_INSERTITEM, TCM_GETITEM, and TCM_SETITEM messages. This structure supersedes the TC_ITEM structure.

Syntax

typedef struct tagTCITEMW {
  UINT   mask;
  DWORD  dwState;
  DWORD  dwStateMask;
  LPWSTR pszText;
  int    cchTextMax;
  int    iImage;
  LPARAM lParam;
} TCITEMW, *LPTCITEMW;

Members

mask

Type: UINT

Value that specifies which members to retrieve or set. This member can be a combination of the following values:

Value	Meaning
TCIF_IMAGE	The iImage member is valid.
TCIF_PARAM	The lParam member is valid.
TCIF_RTLREADING	The string pointed to by pszText will be displayed in the direction opposite to the text in the parent window.
TCIF_STATE	Version 4.70. The dwState member is valid.
TCIF_TEXT	The pszText member is valid.

dwState

Type: DWORD

Version 4.70. Specifies the item's current state if information is being retrieved. If item information is being set, this member contains the state value to be set for the item. For a list of valid tab control item states, see Tab Control Item States. This member is ignored in the TCM_INSERTITEM message.

dwStateMask

Type: DWORD

Version 4.70. Specifies which bits of the dwState member contain valid information. This member is ignored in the TCM_INSERTITEM message.

pszText

Type: LPTSTR

Pointer to a null-terminated string that contains the tab text when item information is being set. If item information is being retrieved, this member specifies the address of the buffer that receives the tab text.

cchTextMax

Type: int

Size in TCHARs of the buffer pointed to by the pszText member. If the structure is not receiving information, this member is ignored.

iImage

Type: int

Index in the tab control's image list, or -1 if there is no image for the tab.

lParam

Type: LPARAM

Application-defined data associated with the tab control item. If more or less than 4 bytes of application-defined data exist per tab, an application must define a structure and use it instead of the TCITEM structure. The first member of the application-defined structure must be a TCITEMHEADER structure.

Typically, windows display text left-to-right (LTR). Windows can be mirrored to display languages such as Hebrew or Arabic that read right-to-left (RTL). Ordinarily, pszText will be displayed in the same direction as the text in its parent window. If TCIF_RTLREADING is set, pszText will read in the opposite direction from the text in the parent window.

Note

The commctrl.h header defines TCITEM as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2003 [desktop apps only]
Header	commctrl.h