错误C2065:"GetItem":未声明的标识符 [英] error C2065: 'GetItem' : undeclared identifier

问题描述

，，
我正在尝试使用绘制项目功能时更改列表控制标题，文本和背景色的颜色，我得到错误C2065:``GetItem'':未声明的标识符，此错误发生在这里:

Hi,,,
Im trying to change the colour of list contols header,text and background colour while using draw item function I''m getting error C2065: ''GetItem'' : undeclared identifier , this error occurs here:

GetItem(lpDrawItemStruct->itemID, &hdi);  

请说说如何纠正

please say how to rectify it

void CColumnDlg::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
  // This code only works with header controls.
  ASSERT(lpDrawItemStruct->CtlType == ODT_HEADER);
  HDITEM hdi;
  TCHAR  lpBuffer[256];
  hdi.mask = HDI_TEXT;
  hdi.pszText = lpBuffer;
  hdi.cchTextMax = 256;
  GetItem(lpDrawItemStruct->itemID, &hdi);  // Draw the button frame.
  ::DrawFrameControl(lpDrawItemStruct->hDC,
    &lpDrawItemStruct->rcItem, DFC_BUTTON, DFCS_BUTTONPUSH);
  // Draw the text items using the text color red.
  COLORREF crOldColor = ::SetTextColor(lpDrawItemStruct->hDC,
    RGB(255,0,0));
  ::DrawText(lpDrawItemStruct->hDC, lpBuffer, strlen(lpBuffer),
    &lpDrawItemStruct->rcItem, DT_SINGLELINE|DT_VCENTER|DT_CENTER);
  ::SetTextColor(lpDrawItemStruct->hDC, crOldColor);
}

在此先感谢

thanks in advance

推荐答案

应该有一个.rc文件，在其中定义

There should be .rc file inside which

lpDrawItemStruct->itemID

.

因此，请确保在项目中添加了.rc文件.

this would be defined.

So, make sure you added the .rc file in your project.

这是因为您的对话框没有这种方法.
:-)

That comes because your dialog hasn''t such a method.
:-)

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