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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| commctrl.h
| Unicode
| No
| Platform Notes
| None
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LVM_SETCALLBACKMASK
The LVM_SETCALLBACKMASK message changes the callback mask for a list view
control. You can send this message explicitly or by using the ListView_SetCallbackMask macro.
LVM_SETCALLBACKMASK
wParam = (WPARAM) (UINT) mask;
lParam = 0;
Parameters
hwnd
Handle to the list view control.
mask
Specifies the value of the callback mask. The bits of the mask indicate the
item states or images for which the application stores the current state data.
This value can be any combination of the following constants:
Value
| Meaning
| LVIS_CUT
| The item is marked for a cut-and-paste operation.
| LVIS_DROPHILITED
| The item is highlighted as a drag-and-drop target.
| LVIS_FOCUSED
| The item has the focus.
| LVIS_SELECTED
| The item is selected.
| LVIS_OVERLAYMASK
| The application stores the image list index of the current overlay image for
each item.
| LVIS_STATEIMAGEMASK
| The application stores the image list index of the current state image for
each item.
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For more information about overlay images and state images, see List View Image Lists.
Return Values
Returns TRUE if successful or FALSE otherwise.
Remarks
The callback mask of a list view control is a set of bit flags that specify the item states for
which the application, rather than the control, stores the current data. The
callback mask applies to all of the control's items, unlike the callback item
designation, which applies to a specific item. The callback mask is zero by
default, meaning that the list view control stores all item state information. After
creating a list view control and initializing its items, you can send the
LVM_SETCALLBACKMASK message to change the callback mask. To get the current
callback mask, send the LVM_GETCALLBACKMASK message.
For more information, see Callback Items and the Callback Mask.
See Also
ListView_SetCallbackMask, LVM_GETCALLBACKMASK, LVN_GETDISPINFO
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