TCard
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This option is available from the "Insert | HtmlHelp Control" menu and is a HtmlHelp specific option. TCards, or "Training Cards", are commands that you send from your Help File to your application. Your application can then process these command and respond.


Display Options

Hidden

Hides this option. Useful if you are referring to this control from code

As a Button

Creates a clickable button with caption


Button Options

Caption

If you chose a display option of a Button then the caption you type below will appear on your button

Bitmap

Use the ellipsis button below to choose a bitmap to represent this control. The bitmap must be in your HtmlHelp folder, not your images folder, and must be shipped along with your CHM file

Icon

As with the Image option, you can use the ellipsis button below to choose a icon to represent this control. The icon must be in your HtmlHelp folder, not your images folder, and must be shipped along with your CHM file


Parameters

WPARAM Number

This is a number, along with the windows message WM_TCARD, that you send to your application

LPARAM Number/String

This can either be a number or a string. You can use this to pass meaningful information back to your application