设置分辨率后，Release版本程序退出时无法恢复分辨率

Question

void CYuhtApp::RestoreDevMode()
{
   DEVMODE lpDevMode;
     lpDevMode.dmBitsPerPel=m_colorBits;
     lpDevMode.dmPelsWidth=m_xRes;
     lpDevMode.dmPelsHeight=m_yRes;
     lpDevMode.dmDisplayFrequency=m_refresh;
     lpDevMode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |DM_DISPLAYFREQUENCY;
     LONG lResult=ChangeDisplaySettings(&lpDevMode,0);}

Answer 1

将lpDevMode先zeromemory一下，然后再斌值！

Answer 2

void CYuhtApp::RestoreDevMode() 
{ 
DEVMODE lpDevMode;
EnumDisplaySettings(NULL,ENUM_CURRENT_SETTINGS,&lpDevMode);     //获取屏幕分辩率 
    lpDevMode.dmBitsPerPel=m_colorBits; 
    lpDevMode.dmPelsWidth=m_xRes; 
    lpDevMode.dmPelsHeight=m_yRes; 
    lpDevMode.dmDisplayFrequency=m_refresh; 
    lpDevMode.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT |DM_DISPLAYFREQUENCY; 
    LONG lResult=ChangeDisplaySettings(&lpDevMode,0); }