参数dwFlags用来指示图形模式如何改变，可能的值包括0表示动态改变、CDS_UPDATEREGISTRY表示改变并更新注册表、CDS_TEST用于检测有效模式、CDS_FULLSCREEN为临时模式、CDS_GLOBAL影响全局设置、CDS_SET_PRIMARY设置首要设备，以及CDS_RESET和CDS_NORESET与注册表更新相关。通过CDS_TEST，应用可以测试哪个模式有效，...
Change the Main Display: FAQs 1. Why “Make this my main display” is grayed out? If you find “Make this my main display” option is grayed out, then it means that the currently selected display is already set as the main display. 2. How do I change primary display number in my l...
2 Click/tap on the Set up multiple displays link under Display in the left pane, right click on the display number you want to set as the main display, and click/tap on Make primary. (see screenshot below) The display number with an asterisk * on it is the current primary (main) ...
CDS_SET_PRIMARY：该设备将成为原始设备。CDS_RESET：即使请求设置与当前设置相同，也会改变设置。CDS_SETRECT：在WM_DISPLAYCHANGE消息中指定的发送到所有应用程序的lParam消息参数，被当作RECT结构的指针，该结构在一个多屏幕环境中定义了显示设备的位置。如果iParam参数为NULL，意味着显示设备将从多屏幕环境中分离。CDS_...
CDS_SET_PRIMARY 此裝置將成為主要裝置。 CDS_TEST 系統會測試是否可設定要求的圖形模式。 CDS_UPDATEREGISTRY 目前畫面的圖形模式將會動態變更,而圖形模式將會在登錄中更新。 模式資訊會儲存在使用者配置檔中。 指定CDS_TEST可讓應用程式判斷哪些圖形模式實際上有效,而不會讓系統變更為該圖形模式。
winuser.h 标头将 ChangeDisplaySettings 定义为一个别名,该别名根据 UNICODE 预处理器常量的定义自动选择此函数的 ANSI 或 Unicode 版本。 将中性编码别名与不中性编码的代码混合使用可能会导致编译或运行时错误不匹配。 有关详细信息,请参阅函数原型的约定。
We go through the ways you can change primary monitor in Windows 10 via the OS’ settings (and through dedicated GPU settings too).
Click the monitor that you want to use as the primary monitor. Click to select the "Make this my main display" check box if it is not already selected. (Note: The "Make this my main display" check box is unavailable if you click t...
Click the monitor that you want to use as the primary monitor. Click to select the "Make this my main display" check box if it is not already selected. (Note: The "Make this my main display" check box is unavailable if you click the monitor that is currently set as your primary moni...