HD_ITEM
The HD_ITEM
structure contains information about an item in a header control.
typedef struct _HD_ITEM { hdi
UINT mask;
int cxy;
LPTSTR pszText;
HBITMAP hbm;
int cchTextMax;
int fmt;
LPARAM lParam;
} HD_ITEM;
Members
mask
Mask flags
that indicate which of the other structure members contain valid data. This
member can be a combination of the following values:
|
Value |
Meaning |
|
HDI_BITMAP |
The hbm
member is valid. |
|
HDI_FORMAT |
The fmt
member is valid. |
|
HDI_HEIGHT |
The cxy
member is valid and specifies the height of the item. |
|
HDI_LPARAM |
The lParam
member is valid. |
|
HDI_TEXT |
The pszText
and cchTextMax members are valid. |
|
HDI_WIDTH |
The cxy
member is valid and specifies the width of the item. |
cxy
Width or
height of item.
pszText
Pointer to
item string.
hbm
Handle to
item bitmap.
cchTextMax
Length of
item string, in characters.
fmt
A set of bit
flags that specify the item s format.
This member
can include one of the following text justification or right-to-left reading
order bit flags:
|
Value |
Meaning |
|
HDF_CENTER |
Centers the
contents of the item. |
|
HDF_LEFT |
Left aligns
the contents of the item. |
|
HDF_RIGHT |
Right
aligns the contents of the item. |
|
HDF_RTLREADING |
Displays
text using right-to-left reading order on Hebrew or Arabic systems. |
The preceding
value is combined with one of the following values:
|
Value |
Meaning |
|
HDF_BITMAP |
The item
displays a bitmap. |
|
HDF_OWNERDRAW |
The owner
window of the header control draws the item. |
|
HDF_STRING |
The item
displays a string. |
You can use
the HDF_JUSTIFYMASK mask to isolate the text justification portion of the fmt
member.
lParam
Application-defined
item data.