好的,请考虑这张图片.
I develop an IE extension in c# and I would :
- the distance in red, between top of screen and top of `visible webpage`
- the distance in red between left of screen and left of `visible webpage`
- the width/heigth of the visible webpage
当然考虑到我有整个屏幕尺寸.如果我有红色和黑色,我可以计算绿色.
有什么意义?
我有一千个屏幕坐标(X,Y),我必须相对于网页计算坐标.
Example :
Considering
Screen size : 1200 * 800
Webpage size : 400*300
Red distance between left screen border and left webpage border : 200
Red distance between top screen border and top webpage border : 300
So my coordinates screen => relative webpage becomes :
( 100, 100 ) => OUTSIDE WEBPAGE( ignored )
( 1100, 650 ) => OUTSIDE WEBPAGE ( ignored )
( 200, 300 ) => ( 0,0 )
( 250, 400 ) => ( 50, 100 )
实际上我有这个代码,这是继承自AddinExpress.IE.ADXIEModule,thetoolbarObj是我添加到InternetExplorer的工具栏.所以我可以在它上面使用pointToScreen,我不是我需要的,但工具栏的左角不是我需要的,我需要网页的左角.
public void getUtilsDimension()
{
Rectangle resolution = Screen.PrimaryScreen.Bounds;
Int32 screenWidth = resolution.Width;
Int32 screenHeight = resolution.Height;
AddinExpress.IE.ADXIEToolBarItem toolbarItem = this.ToolBars[0];
AddinExpress.IE.ADXIEToolbar toolbarObj = toolbarItem.ToolBarObj;
Point leftCornerWebPage = toolbarObj.PointToScreen(new Point(0, 0));
Int32 toolbarHeight = toolbarObj.Height;
Int32 toolbarWidth = toolbarObj.Width;
Debug.WriteLine("Largeur écran : " + screenWidth);
Debug.WriteLine("Hauteur écran : " + screenHeight);
Debug.WriteLine("LeftCornerX : " + leftCornerWebPage.X);
Debug.WriteLine("LeftCornerY : " + leftCornerWebPage.Y);
Debug.WriteLine("toolbarHeight : " + toolbarHeight);
Debug.WriteLine("toolbarWidth : " + toolbarWidth);
}
这就是我实际得到的,屏幕是1600 * 900,pointToScreen返回红叉的坐标(484,158).但我需要蓝色十字的坐标,作为可见网页的宽度和高度.我知道我可以用Jquery中的$(窗口)来获取它,但我不知道如何使用c#.
我可以使用this.HTMLDocument访问HTLMDocument(typeof mshtml.HTMLDocument),遗憾的是,在HTMLDocument对象上,pointToScreen不可用.
编辑:它是第一个截图的铬,但当然应该是IE浏览器
更新08/12
好的,我有可见网页的宽度和高度(我的屏幕截图上的黑线)
唯一缺少的是我的截图2上蓝色十字的坐标
var heightVisibleWebPage = HTMLDocument.documentElement.offsetHeight;
var widthVisibleWebPage = HTMLDocument.documentElement.offsetWidth;
对于赏金,我需要蓝十字的精确坐标.不管怎样.它应该工作无论Internet Explorer版本,收藏夹/工具/命令/状态栏显示与否.
更新08/12 HTMLDocument
HTMLDocument来自AddinExpress,它不是System.Windows.Forms.HtmlDocument
public mshtml.HTMLDocument HTMLDocument
{
get
{
return (this.HTMLDocumentObj as mshtml.HTMLDocument);
}
}
他的父HTMLDocument.parentWindows是一个IHTMLWindow2对象
HTMLDocumentObj是其成员
public class ADXIEModule : Component, IRemoteModule2, IRemoteModule, IObjectWithSite, IWin32Window
{
...
//
// Résumé :
// Gets the automation object (a COM object) of the active document, if any.
//
// Notes :
// When the active document is an HTML page, this property provides access to
// the contents of the HTML Document Object Model (DOM). Specifically, it returns
// an HTMLDocument object reference. The HTMLDocument object is functionally
// equivalent to the HTML document object used in HTML page script. It supports
// all the properties and methods necessary to access the entire contents of
// the active HTML document.
// The HTMLDocument object can be used through the IHTMLDocument interface,
// the IHTMLDocument2 interface, and the IHTMLDocument3 interface.
// When other document types are active, such as a Microsoft Word document,
// this property returns the document automation object of that document. For
// Word documents, this is the Document object.
[Browsable(false)]
public object HTMLDocumentObj { get; }
...
}
请为社区解释-1时;)
最佳答案 这些是步骤:
>使用EnumWindows()api查找Internet Explorer窗口句柄.类名是IEFrame
>使用EnumChildWindows()api遍历所有子窗口.类名是Internet Explorer_Server
>使用GetWindowRect()api查找x,y坐标
码:
[DllImport("user32.dll")]
public static extern int EnumWindows(EnumWindowsCallback lpEnumFunc, int lParam);
[DllImport("user32.dll")]
public static extern int EnumChildWindows(IntPtr hWndParent, EnumWindowsCallback lpEnumFunc, int lParam);
public delegate bool EnumWindowsCallback(IntPtr hwnd, int lParam);
[DllImport("user32.dll")]
public static extern void GetClassName(IntPtr hwnd, StringBuilder s, int nMaxCount);
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left; // x position of upper-left corner
public int Top; // y position of upper-left corner
public int Right; // x position of lower-right corner
public int Bottom; // y position of lower-right corner
}
[DllImport("user32.dll")]
static extern bool GetWindowRect(IntPtr hwnd, out RECT lpRect);
private IntPtr ieHandle, ieChildHandle;
private void GetWindows()
{
EnumWindows(Callback, 0);
}
private bool Callback(IntPtr hwnd, int lParam)
{
StringBuilder className = new StringBuilder(256);
GetClassName(hwnd, className, className.Capacity);
if (className.ToString().Equals("IEFrame"))
{
ieHandle = hwnd;
return false;
}
return true; //continue enumeration
}
private void GetChildWindows()
{
if (ieHandle != IntPtr.Zero)
{
EnumChildWindows(ieHandle, CallbackChild, 0);
}
}
private bool CallbackChild(IntPtr hwnd, int lParam)
{
StringBuilder className = new StringBuilder(256);
GetClassName(hwnd, className, className.Capacity);
if (className.ToString().Equals("Internet Explorer_Server"))
{
ieChildHandle = hwnd;
return false;
}
return true; //continue enumeration
}
要获得坐标:
GetWindows();
GetChildWindows();
if (ieChildHandle != IntPtr.Zero)
{
RECT rect;
if (GetWindowRect(ieChildHandle, out rect))
{
//rect.Left, rect.Top
}
}
ieChildHandle = IntPtr.Zero;
ieHandle = IntPtr.Zero;
测试IE 6,9和11