Static void ShowHelp(System::Windows::Forms::Control ^ parent, System::String ^ url, System::Windows::Forms::HelpNavigator command, System::Object ^ param) public: See alsoĭisplays the contents of the Help file located at the URL supplied by the user. You can use the following values for the navigator argument: HelpNavigator.TableOfContents, HelpNavigator.Find, HelpNavigator.Index, or HelpNavigator.Topic. Help.ShowHelp(TextBox1, "file://c:\charmap.chm", HelpNavigator.Index)Ĭompiled Help files provide table of contents, index, search, and keyword links in pages. Private Sub Button2_Click(ByVal sender As System.Object, _īyVal e As System.EventArgs) Handles Button2.Click ' Open the Help file for the Character Map topic and Help.ShowHelp(TextBox1, "file://c:\\charmap.chm", Private void Button2_Click(System.Object sender, System.EventArgs e) Open the Help file for the Character Map topic and Help::ShowHelp( TextBox1, "file://c:\\charmap.chm", HelpNavigator::Index ) Void Button2_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ ) To run this example, paste the following code into a form that contains a button named Button2. The following code example demonstrates how to use the ShowHelp method to open a Help file to its index page. If keyword is null, the table of contents for the Help file will be displayed. For information on the format of paths, see File path formats on Windows systems. The url argument can be of the form C:\path\sample.chm or /folder/file.htm. Help.ShowHelp(Me, helpfile, keyword.Text) ' Display Help using the provided keyword. ![]() Private Sub showKeyword_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles showKeyword.Click Help.ShowHelp(this, helpfile, keyword.Text) Private void showKeyword_Click(object sender, System.EventArgs e) Help::ShowHelp( this, helpfile, keyword->Text ) ![]() ![]() Display help using the provided keyword. void showKeyword_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ ) See the Help class overview for the complete code example. This example shows only the call to the ShowHelp method. To show the "To paint with a brush" Help topic by the keyword, type mspaint.chm::/paint_brush.htm in the Keyword text box, and then click the Show Keyword button. The Show Keyword button displays content in the Help file based on the keyword that is specified in the Keyword text box.įor example, to show the Ovals Help page by the index value, select the HelpNavigator.KeywordIndex value in the Help Navigator drop-down list, type ovals in the Parameter text box, and then click the Show Help button. The Show Help button displays content in the Help file based on the value that is selected in the Help Navigator list. The Show Help Index button displays the Index tab for the Help file. The following code example displays a form with three buttons that can be used to interact with the mspaint.chm Help file.
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