Manual > Control Reference > Basics > View control > Events

Called before the form is opened.

syntax

event OnBeforeOpenForm(

basedFormName,

&isOpen,

&stretchMode,

&openParam,

formName,

basedFormPath

)

Parameters

basedFormName
	Type:	character
	The name of the original form to open.

isOpen
	Type:	character
	If you set isOpen to FALSE within the event, the corresponding form will be prohibited from opening.

stretchMode

Type:

character

Stretch mode when opening the form. You can change the stretch mode in the event.

"NONE" - no stretching

"STRETCH_FULL" - Stretch to fit the size of the dialog.

"STRETCH_KEEPRATE" - Stretch the image to fit the size of the dialog (keep aspect ratio)

"DEFAULT" - Same as the default value (the Stretch state of the main view).

openParam
	Type:	character
	Open parameters, which can be changed before opening the form.

basedFormPath
	Type:	character
	Base form path. The path including the folder name of the form to be opened. Example: Folder01.Form01

Supported

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reference