通过

CWaitCursor::Restore

  • 项目

若要继续等待光标，请在执行操作后调用此功能，如显示消息框或对话框，可以更改等待光标位置到另一个游标。

void Restore( );

备注

即使等待光标当前显示，可以调用 Restore。

如果在函数需要还原等待光标，在除 CWaitCursor 对象声明内容之外时，可以调用 CCmdTarget::RestoreWaitCursor。

示例

// This example illustrates performing an operation 
// which changes the wait cursor. You should call 
// CWaitCursor::Restore to restore the wait 
// cursor after an operation which changes the cursor.
void AnotherLengthyFunction( )
{
   CWaitCursor wait;   // display wait cursor

   // do some lengthy processing
   Sleep(1000);

   // The dialog box will normally change the cursor to
   // the standard arrow cursor.
   CFileDialog dlg(TRUE);
   dlg.DoModal();

   // It is necessary to call Restore here in order
   // to change the cursor back to the wait cursor.
   wait.Restore();

   // do some more lengthy processing
   Sleep(1000);

   // destructor automatically removes the wait cursor
}

// If the wait cursor is changed by a function called by
// the function which created the wait cursor, you 
// can call CCmdTarget::RestoreWaitCursor to restore 
// the wait cursor.
void CalledFunction()
{
   CFileDialog dlg(TRUE);
   dlg.DoModal();

   // Since CWinApp is derived from CCmdTarget, we can use a 
   // pointer to our application object to make the call to
   // CCmdTarget::RestoreWaitCursor.
   AfxGetApp()->RestoreWaitCursor();

   // Yet more lengthy processing...
   Sleep(1000);
}

要求

Header: afxwin.h

请参见

参考

CWaitCursor选件类

层次结构图

CCmdTarget::RestoreWaitCursor