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FormHelp component.
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procedure InvokeHelpPointer;
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The InvokeHelpPointer method changes the cursor to a question mark with a pointer. If the user then clicks a control in the form, the control receives a message to show the context-sensitive help taken from secondary part of the Hint property.
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procedure TForm1.Button2Click(Sender: TObject);
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begin
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FormHelp1.InvokeHelpPointer;
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end;
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procedure TForm1.Button2Click(Sender: TObject);
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begin
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SendMessage(Handle, WM_SYSCOMMAND, SC_CONTEXTHELP, 0);
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end;
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MenuItem and ToolbarButton properties of the WhatsThis structure.
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