CONTROL ADD LINE

Description

Create a new line control inside a dialog.

Syntax

hndl = CONTROL ADD LINE, hwnd, ctrlID, txt, xPos, yPos, Width, Height [, [Style] [, [ExStyle]]] [[,] CALL CallBack]

Returns

Number

Control window handler.

Parameters

Name	Type	Optional	Meaning
hwnd	Number	No	Handle of the dialog containing the control
ctrlID	Number	No	Control identifier
txt	String	No	A text expression representing the text you want to assign to the control. A line control does not display text, so it is possible to use this string for your own purposes
xPos	Number	No	Horizontal position of the control inside the dialog
yPos	Number	No	Vertical position of the control inside the dialog
Width	Number	No	Control width
Height	Number	No	Control height
Style	Number	Yes	Primary style of the control. See LINE Style equates.
ExStyle	Number	Yes	Extended style of the control. See LINE ExStyle equates.
CallBack	Function	Yes	Optional name of a Callback Function that receives all %WM_COMMAND and %WM_NOTIFY messages for the control. If the Callback Function processes a message, it should return %TRUE (non-zero) to prevent the message being passed unnecessarily to the dialog callback (if one exists). The dialog callback should also return %TRUE if the notification message is processed by that Callback Function.

Remarks

A line control will only send messages to a callback if the %SS_NOTIFY style is used. The following notifications are sent to the Callback Function:

%STN_CLICKED

Sent when the user clicks a mouse button, or activates the button with the hot-key (unless the button has been disabled).

%STN_DBLCLK

Sent when the user double-clicks on a label control (unless the control has been disabled).

%STN_DISABLE

Sent when a button is disabled.

%STN_ENABLE

Sent when a label control has been enabled.

When a Callback Function receives a %WM_COMMAND message, it should explicitly test the value of CBCTL and CBCTLMSG to guarantee it is responding appropriately to the notification message.

Restrictions