Delphi WebBrowser controls enable thethe bug that appears in use:1, Webbrowser.visible=false;visible property can not make the WebBrowser control is not visible, temporarily replaced with Webbrowser.hide method, webbrowser.hide Hidden Browser, Webbrowser.show Display browser;Added: WebBrowser's onvisible Event Control window is visible or hidden and used as abov
the page changes, text is the current caption. Onpropertychange = procedure (sender:tobject; const property_: widestring) of object; Occurs when the properties of a page change, Property_ is the property name ondownloadcomplete:tnotifyevent occurs after the download page finishes. Ondownloadbegin:tnotifyevent occurs before the download page begins.7> displaying Dynamic HTML code in a WebBrowser controlAdd the ActiveX var strstream:tstringstream in
;
For I: = 0 to frames. Length do
Memo1.lines.add(framespolici}.doc ument. Body. innerhtml); 6. After borderstyle = bsnone
Webbrowser It is a very unexpected issue that will be reinitialized. Delphi has done a very good job in the control of window controls, and seldom encountered such bugs based on analysis, in many cases, formstyle is changed. If
Webbrowser C
Initialization finalization)
You are executing a method of twebbrowser to perform the expected operation, for example, execwb may encounter errors such as "trying to activate unregistered lost targets" or "OLE object not registered", or no errors but no expected results, for example, you cannot copy the selected webpage content to the clipboard. When I used it for programming, I found that execwb sometimes works but sometimes does not work. I added twebbrowser to the default Project Main Wind
Step one: Get the URL address of the CAPTCHA picture in the Web pageAdd a bitbtn and a memo to the Delphi and a WebBrowser control to implement the URL address of the verification code picture in the Web page, the following procedures are obtained:Procedure Tform1.bitbtn1click (sender:tobject); var i:integer;begin for I:=0 to Webbrowser1.oleobject.document.images.length-1 do Memo1.Lines.Add (WebBrowser1.Ole
wb.oleobject.doc ument. frames;For I: = 0 to frames. length doMemo1.lines.add(frames[ I }.doc ument. body. innerHTML );
6. After BorderStyle = bsNone, Webbrowser will be reinitializedThis is a very surprising problem. Delphi has done a very good job in the control of window controls, and few such bugs have occurred.According to the analysis, there are many situations where FormStyle is changed. If
using DHTML.Frames: Invalid wb.oleobject.doc ument. frames;For I: = 0 to frames. Length doMemo1.lines.add(frames[ I }.doc ument. body. innerhtml); 6. after borderstyle = bsnone, webbrowser will be reinitialized. This is a very unexpected problem. Delphi has done a very good job in the control of window controls, and few such bugs are analyzed, in many cases, formstyle is changed. changing the parent from P
This time in a Delphi interface to open the function of the Web page, and this page is in the window can be fully displayed, can be reduced to another window on the panel displayHowever, when you change the window of the page, the WebBrowser control becomes blank.Google on the internet for half a day, finally found on the CSDN solution:Original address: http://bbs.csdn.NET/topics/200046109[
Sometimes we need Delphi to load webbrowser1 to open the webpage. When we need to click a certain point, the coordinates may be the buttons or other controls.How should we implement it? Here we will briefly describe the process of clicking coordinates.Obviously, we move the mouse to click or send a message to click.The following figure shows how to send a message and click it.The idea of sending a message to click is to send a message by sendmessage (
Webbrowser in Delphi is a browser with IE as the kernel. It is too simple, so we recommend that you useEmbedded Web BrowserControl!
Official Website: http://www.bsalsa.com/index.html
The webbrowser mentioned below refers to this control.
To shield webbrowser from the original context menu, it's easy
Function
Delphi WebBrowser Control opens part of the website "Invalid floating point operation" resolvedEmbeddedwbwebbrowserdelphiRecently use EMBEDDEDWB control to do browser-related applications, found that some Web pages as long as the opening will be a "Invalid floating point Operation" Exception (after the Exception dialog box, the browser is not responding), and the program is just a sentenceWebBrowser1.Naviga
' , 0); O.value: = ' TEST ';//Find the input box for login password o: = WebBrowser.oleobject.document.documentelement.document.frames.item ( Framindex). Document.All.Item (' Loginpassword ', 0); O.value: = ' TEST '// The first form submits a WebBrowser.oleobject.document.documentelement.document.frames.item (Framindex). Document. Forms.item (0, 0). Submit; {//or submit with the specified form name o: =webbrowser.oleobject.document.documentelement.document.frames.item (Framindex).. Document.All
' , 0); O.value: = ' TEST ';//Find the input box for login password o: = WebBrowser.oleobject.document.documentelement.document.frames.item ( Framindex). Document.All.Item (' Loginpassword ', 0); O.value: = ' TEST '// The first form submits a WebBrowser.oleobject.document.documentelement.document.frames.item (Framindex). Document. Forms.item (0, 0). Submit; {//or submit with the specified form name o: =webbrowser.oleobject.document.documentelement.document.frames.item (Framindex).. Document.All
' , 0); O.value: = ' TEST ';//Find the input box for login password o: = WebBrowser.oleobject.document.documentelement.document.frames.item ( Framindex). Document.All.Item (' Loginpassword ', 0); O.value: = ' TEST '// The first form submits a WebBrowser.oleobject.document.documentelement.document.frames.item (Framindex). Document. Forms.item (0, 0). Submit; {//or submit with the specified form name o: =webbrowser.oleobject.document.documentelement.document.frames.item (Framindex).. Document.All
' , 0); O.value: = ' TEST ';//Find the input box for login password o: = WebBrowser.oleobject.document.documentelement.document.frames.item ( Framindex). Document.All.Item (' Loginpassword ', 0); O.value: = ' TEST '// The first form submits a WebBrowser.oleobject.document.documentelement.document.frames.item (Framindex). Document. Forms.item (0, 0). Submit; {//or submit with the specified form name o: =webbrowser.oleobject.document.documentelement.document.frames.item (Framindex).. Document.All
' , 0); O.value: = ' TEST ';//Find the input box for login password o: = WebBrowser.oleobject.document.documentelement.document.frames.item ( Framindex). Document.All.Item (' Loginpassword ', 0); O.value: = ' TEST '// The first form submits a WebBrowser.oleobject.document.documentelement.document.frames.item (Framindex). Document. Forms.item (0, 0). Submit; {//or submit with the specified form name o: =webbrowser.oleobject.document.documentelement.document.frames.item (Framindex).. Document.All
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