设置Windows 8.1屏幕自动旋转代码, Auto-rotate function code

程序代码实现启用或禁用Windows 8.1 Tablet的自动旋转功能

方法一：使用SetDisplayAutoRotationPreferences函数功能

#include <Windows.h>/*
typedef enum ORIENTATION_PREFERENCE {   ORIENTATION_PREFERENCE_NONE              = 0x0,   ORIENTATION_PREFERENCE_LANDSCAPE         = 0x1,   ORIENTATION_PREFERENCE_PORTRAIT          = 0x2,   ORIENTATION_PREFERENCE_LANDSCAPE_FLIPPED = 0x4,   ORIENTATION_PREFERENCE_PORTRAIT_FLIPPED  = 0x8
}ORIENTATION_PREFERENCE; 
*/
typedef BOOL (WINAPI *pSDARP)(ORIENTATION_PREFERENCE orientation);
pSDARP pARP;int main(int argc, char* argv[])
{pARP = (pSDARP) GetProcAddress( GetModuleHandle(TEXT("user32.dll")),  "SetDisplayAutoRotationPreferences"); if( pARP ){if (atoi(argv[1]) == 0){pARP( (ORIENTATION_PREFERENCE)(ORIENTATION_PREFERENCE_LANDSCAPE | ORIENTATION_PREFERENCE_LANDSCAPE_FLIPPED) );}if (atoi(argv[1]) == 1){pARP( (ORIENTATION_PREFERENCE)(ORIENTATION_PREFERENCE_NONE) );}}else{printf("System not supported.\t");return 1;}return 0;
}

方法二：通过写入注册表Enable来设置。1表示启用自动旋转，0为禁止自动旋转

具体Key的位置如下：

KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\AutoRotation