修改历史方案界面

duheng

2024-03-28 6c93aedfeeb66023f9506083517aee1a4e18e24d

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using System;
using System.Runtime.InteropServices;
 
namespace TProduct.UI.WinFrm
{
    //检查屏幕比例
    public class PrimaryScreenSizeHelper
    {
 
 
 
 
        #region Win32 API
        [DllImport("user32.dll")]
        static extern IntPtr GetDC(IntPtr ptr);
        [DllImport("gdi32.dll")]
        static extern int GetDeviceCaps(
       IntPtr hdc, // handle to DC  
       int nIndex // index of capability  
       );
        [DllImport("user32.dll", EntryPoint = "ReleaseDC")]
        static extern IntPtr ReleaseDC(IntPtr hWnd, IntPtr hDc);
        #endregion
 
        #region DeviceCaps常量
        const int HORZRES = 8;
        const int VERTRES = 10;
        const int LOGPIXELSX = 88;
        const int LOGPIXELSY = 90;
        const int DESKTOPVERTRES = 117;
        const int DESKTOPHORZRES = 118;
        #endregion
 
        #region 属性
 
        /// <summary>  
        /// 获取屏幕分辨率当前物理大小  
        /// </summary>  
        public static System.Drawing.Size WorkingArea
        {
            get
            {
                IntPtr hdc = GetDC(IntPtr.Zero);
                System.Drawing.Size size = new System.Drawing.Size();
                size.Width = GetDeviceCaps(hdc, HORZRES);
                size.Height = GetDeviceCaps(hdc, VERTRES);
                ReleaseDC(IntPtr.Zero, hdc);
                return size;
            }
        }
        /// <summary>  
        /// 当前系统DPI_X 大小 一般为96  
        /// </summary>  
        public static int GetDpiX()
        {
 
            IntPtr hdc = GetDC(IntPtr.Zero);
            int DpiX = GetDeviceCaps(hdc, LOGPIXELSX);
            ReleaseDC(IntPtr.Zero, hdc);
            return DpiX;
 
        }
        /// <summary>  
        /// 当前系统DPI_Y 大小 一般为96  
        /// </summary>  
        public static int DpiY
        {
            get
            {
                IntPtr hdc = GetDC(IntPtr.Zero);
                int DpiX = GetDeviceCaps(hdc, LOGPIXELSY);
                ReleaseDC(IntPtr.Zero, hdc);
                return DpiX;
            }
        }
        /// <summary>  
        /// 获取真实设置的桌面分辨率大小  
        /// </summary>  
        public static System.Drawing.Size DESKTOP
        {
            get
            {
                IntPtr hdc = GetDC(IntPtr.Zero);
                System.Drawing.Size size = new System.Drawing.Size();
                size.Width = GetDeviceCaps(hdc, DESKTOPHORZRES);
                size.Height = GetDeviceCaps(hdc, DESKTOPVERTRES);
                ReleaseDC(IntPtr.Zero, hdc);
                return size;
            }
        }
 
        /// <summary>  
        /// 获取宽度缩放百分比  
        /// </summary>  
        public static float GetScaleX()
        {
 
            IntPtr hdc = GetDC(IntPtr.Zero);
            int t = GetDeviceCaps(hdc, DESKTOPHORZRES);
            int d = GetDeviceCaps(hdc, HORZRES);
            float ScaleX = (float)GetDeviceCaps(hdc, DESKTOPHORZRES) / (float)GetDeviceCaps(hdc, HORZRES);
            ReleaseDC(IntPtr.Zero, hdc);
            return ScaleX;
 
        }
        /// <summary>  
        /// 获取高度缩放百分比  
        /// </summary>  
        public static float GetScaleY()
        {
 
            IntPtr hdc = GetDC(IntPtr.Zero);
            float ScaleY = (float)(float)GetDeviceCaps(hdc, DESKTOPVERTRES) / (float)GetDeviceCaps(hdc, VERTRES);
            ReleaseDC(IntPtr.Zero, hdc);
            return ScaleY;
 
        }
 
 
 
 
        #endregion
    }
}