Check the RGtk FAQ first. When I use an OBJECT tag, nothing appears. Did you make certain to close the OBJECT tag with an explicit </OBJECT>? Did you provide a WIDTH and a HEIGHT attribute for the <OBJECT> node? Is there support for the MIME type? If not, R will try to evaluate the <init> code and fail silently. I can't use the <OPTGROUP> tag in the <SELECT> nodes for menus in forms? Is this supported? No, gtkhtml doesn't support this. It is in the HTML 4 specification. Is there any way to access the elements in a form written in HTML from R code? Yes. The functions gtkHTMLGetForms and gtkFormGetElements give you access to each of the forms in a GtkHTML widget and all of their elements and information. I'm using the RGtkViewers package and the facilities for having S code within an HTML document via the different MIME types for the <OBJECT> tag. When I do this, sometimes much of the document is missing or not displayed in the widget? What's the problem? A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted. How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.
When I use an OBJECT tag, nothing appears. Did you make certain to close the OBJECT tag with an explicit </OBJECT>? Did you provide a WIDTH and a HEIGHT attribute for the <OBJECT> node? Is there support for the MIME type? If not, R will try to evaluate the <init> code and fail silently. I can't use the <OPTGROUP> tag in the <SELECT> nodes for menus in forms? Is this supported? No, gtkhtml doesn't support this. It is in the HTML 4 specification. Is there any way to access the elements in a form written in HTML from R code? Yes. The functions gtkHTMLGetForms and gtkFormGetElements give you access to each of the forms in a GtkHTML widget and all of their elements and information. I'm using the RGtkViewers package and the facilities for having S code within an HTML document via the different MIME types for the <OBJECT> tag. When I do this, sometimes much of the document is missing or not displayed in the widget? What's the problem? A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted. How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.: Did you make certain to close the OBJECT tag with an explicit </OBJECT>?
Did you provide a WIDTH and a HEIGHT attribute for the <OBJECT> node?
Is there support for the MIME type? If not, R will try to evaluate the <init> code and fail silently.
I can't use the <OPTGROUP> tag in the <SELECT> nodes for menus in forms? Is this supported? No, gtkhtml doesn't support this. It is in the HTML 4 specification. Is there any way to access the elements in a form written in HTML from R code? Yes. The functions gtkHTMLGetForms and gtkFormGetElements give you access to each of the forms in a GtkHTML widget and all of their elements and information. I'm using the RGtkViewers package and the facilities for having S code within an HTML document via the different MIME types for the <OBJECT> tag. When I do this, sometimes much of the document is missing or not displayed in the widget? What's the problem? A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted. How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.: No, gtkhtml doesn't support this. It is in the HTML 4 specification.
Is there any way to access the elements in a form written in HTML from R code? Yes. The functions gtkHTMLGetForms and gtkFormGetElements give you access to each of the forms in a GtkHTML widget and all of their elements and information. I'm using the RGtkViewers package and the facilities for having S code within an HTML document via the different MIME types for the <OBJECT> tag. When I do this, sometimes much of the document is missing or not displayed in the widget? What's the problem? A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted. How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.: Yes. The functions gtkHTMLGetForms and gtkFormGetElements give you access to each of the forms in a GtkHTML widget and all of their elements and information.
I'm using the RGtkViewers package and the facilities for having S code within an HTML document via the different MIME types for the <OBJECT> tag. When I do this, sometimes much of the document is missing or not displayed in the widget? What's the problem? A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted. How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.: A likely cause of this problem is that the R code you are embedding within the document contains a global assignment using the S operator <<-. Well, the gtkhtml code interacts with this specific sequence (actually <-) specifically in an odd way and thinks it is part of a comment. And so the remainder of the document is omitted.
How do you get around this? Install the PATCH for gtkhtml-1.1.6 or install the patched version.

Duncan Temple Lang <duncan@research.bell-labs.com>

Last modified: Sat May 31 11:17:10 EDT 2003