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改变屏幕显示方向,让屏幕显示旋转

 今天转论坛,看到有人问怎么让屏幕显示方向旋转,这个功能很常见,找了找,找到了结果。实验了一下效果还不错。

#include <windows.h>
int main()
{DEVMODE dm;// initialize the DEVMODE structureZeroMemory(&dm, sizeof(dm));dm.dmSize = sizeof(dm);if (0 != EnumDisplaySettings(NULL, ENUM_CURRENT_SETTINGS, &dm)){// swap height and widthDWORD dwTemp = dm.dmPelsHeight;dm.dmPelsHeight = dm.dmPelsWidth;dm.dmPelsWidth = dwTemp;// determine new orientaionswitch (dm.dmDisplayOrientation){case DMDO_DEFAULT:dm.dmDisplayOrientation = DMDO_270;break;case DMDO_270:dm.dmDisplayOrientation = DMDO_180;break;case DMDO_180:dm.dmDisplayOrientation = DMDO_90;break;case DMDO_90:dm.dmDisplayOrientation = DMDO_DEFAULT;break;default:// unknown orientation value// add exception handling herebreak;}long lRet = ChangeDisplaySettings(&dm, 0);if (DISP_CHANGE_SUCCESSFUL != lRet){// add exception handling here}}
}

 

本文标签: 改变屏幕显示方向,让屏幕显示旋转