CWaitCursor::Restore
若要還原等待游標,請在執行作業完成之後會呼叫這個函式,例如顯示訊息方塊或 對話方塊中,可能會變更等待游標為另一個資料指標。
void Restore( );
備註
即使等待游標目前顯示,可以呼叫 還原 。
如果您在函式需要還原等待游標,當 CWaitCursor 宣告物件的執行個體時,您可以呼叫 CCmdTarget::RestoreWaitCursor。
範例
// 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);
}
需求
Header: afxwin.h