双击更改 mfc 中列表控件中的行的颜色

Changing the color of a row in list control in mfc on double click

本文关键字：颜色 控件 列表 mfc 双击      更新时间：2023-10-16

我有一个名为m_listCtrl的列表控件CListCtrl，它在创建对话框时显示ID、Firstname和Lastname。在下面的代码中，我通过单击项目的position并更改该行第一列的值来处理double click。

//This is in the message map and IDC_LISTNAMES is the list control
ON_NOTIFY(NM_DBLCLK, IDC_LISTNAMES,  OnDoubleClick)

void CSqlMfcTestDlg::OnDoubleClick(NMHDR* pNMHDR, LRESULT* pResult) 
{
POSITION pos = m_listCtrl.GetFirstSelectedItemPosition();
if (pos == NULL)
{
TRACE(_T("No items were selected!n"));
}
else
{
while (pos)
{
int nItem = m_listCtrl.GetNextSelectedItem(pos);
itemClicked = nItem;
CString idString = m_listCtrl.GetItemText(nItem, 0);
CString textString = m_listCtrl.GetItemText(nItem, 1);
MessageBox(L"Item Clicked is : " + textString);
m_listCtrl.SetItemText(nItem,0, idString+L"(Clicked)");

}
}
}

而不是m_listCtrl.SetItemText(nItem,0, idString+L"(Clicked)");我想添加一个语句来更改该行的颜色。

请参阅此片段：

class MyListCtrl: public CListCtrl
{
private:
int m_row;
public:
afx_msg void OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult); // write your custom code in the definition
afx void OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult);
}; 
class CSqlMfcTestDlg: public CDialogEx 
{
private:
MyListCtrl m_listCtrl;    
};

定义(未测试(：

void MyListCtrl::OnCustomDraw(NMHDR* pNMHDR, LRESULT* pResult)
{
LPNMLVCUSTOMDRAW  lplvcd = (LPNMLVCUSTOMDRAW)pNMHDR;
int iRow = lplvcd->nmcd.dwItemSpec;
switch(lplvcd->nmcd.dwDrawStage)
{
case CDDS_SUBITEM | CDDS_PREPAINT | CDDS_ITEM:
{
if(iRow == m_row)
lplvcd->clrTextBk =  RGB(0,0,255);
}
}
}
void MyListCtrl::OnNMDblclk(NMHDR *pNMHDR, LRESULT *pResult)
{
LPNMITEMACTIVATE pNMItemActivate = reinterpret_cast<LPNMITEMACTIVATE>(pNMHDR);
m_row = GetSelectionMark();
RedrawItems(m_row, m_row);
}
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