winapi - WTL ListView 以编程方式设置项目状态

Question

在有一个带有复选框的 Listview 时，您如何以编程方式设置所有要检查的项目？

Answer 1

Listview checkbox state is set through the state image bits of the item state. You can change item states with the LVM_SETITEMSTATE message, and can apply a change to all items by passing -1 as the index.

// The state-image index values:
//  1 for the "unchecked" (cleared) state-image
//  2 for the "checked" state-image

int iState = 2;
LVITEM lvi;
lvi.stateMask = LVIS_STATEIMAGEMASK;
lvi.state = INDEXTOSTATEIMAGEMASK(iState);
SendMessage(hwndListView, LVM_SETITEMSTATE, -1, (LPARAM)&lvi);