mobile 实现横屏竖屏切换--禁止转屏

研究了一天..终于搞定了..

在接收到WM_SETTINGCHANGE以后就判断wParam 是否等于0x3002, 如果是就执行如下旋转操作(必须得是postmessage来执行以下操作 ):

 

    DEVMODE devMode;

    SecureZeroMemory(&devMode, sizeof(DEVMODE));   
    devMode.dmSize   = sizeof(devMode);
    devMode.dmFields = DM_DISPLAYORIENTATION;

    ChangeDisplaySettingsEx(NULL, &devMode, NULL, CDS_TEST, NULL);

    if (DMDO_0 == devMode.dmDisplayOrientation)
    {
        devMode.dmDisplayOrientation = DMDO_90;

         ChangeDisplaySettingsEx(NULL, &devMode, NULL, CDS_RESET, NULL);       

    }    

 

扩展信息:

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