MFC常用操作

最新推荐文章于 2023-05-12 12:59:20 发布

原创最新推荐文章于 2023-05-12 12:59:20 发布 · 1k 阅读

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1、获取本程序的运行目录

TCHAR AppPathName[MAX_PATH];
HINSTANCE hwnd = AfxGetAppModuleState()->m_hCurrentInstanceHandle;
GetModuleFileName(hwnd,AppPathName,MAX_PATH); 
CString strModulePath(AppPathName);
int nBinPos=strModulePath.ReverseFind(_T('\\'));
if(nBinPos!=-1)
  strModulePath = strModulePath.Left(nBinPos);

2、由下往上发送消息(发送字符串消息)

下不能获得上的对象，比如不能获得CMainFrame对象，只能以发送消息的形式进行通信

  发送消息：
  CString strName = "我是。。。。";
  char* chName = strName.GetBuffer(strName.GetLength());
  AfxGetMainWnd()->SendMessage(WM_MESSAGE_USER111, (WPARAM)chName, NULL);		//1
  //AfxGetMainWnd()->SendMessage(WM_MESSAGE_USER111, 0, *(LPARAM*)&strName);		//2

  消息响应：
  ON_MESSAGE(WM_MESSAGE_USER111,     OnCommandOpenReport)

  处理消息：
 LRESULT CMainFrame::OnCommandOpenReport( WPARAM wParam, LPARAM lParam )
 {
  CString strCurReportName = (char*)wParam;						//1
  //CString strPathFile = *(CString*)(LPARAM*)&lParam;					//2
  return 0L;
 }