Vouloir cliquer sur une DW alors que la fenêtre n'est pas encore visible ressemble à un problème de conception de l'application, peux tu nous expliquer le besoin d'un tel code ?
Sinon pour déclencher ton clicked dans l'open utilises de préférence le post au trigger pour éviter un arrêt un peu brutal de ton application (de manière aléatoire)

Aide PB a écrit:

When the Open event occurs, the controls on the window already exist (their Constructor events have occurred). In the Open event script, you can refer to objects in the window and affect their appearance or content. For example, you can disable a button or retrieve data for a DataWindow.
Some actions are not appropriate in the Open event, even though all the controls exist. For example, calling the SetRedraw function for a control fails because the window is not yet visible.

Changing the WindowState property      Do not change the WindowState property in the Open event of a window opened as a sheet. Doing so might result in duplicate controls on the title bar. You can change the property in other scripts once the window is open.
When a window is opened, other events occur, such as Constructor for each control in the window, Activate and Show for the window, and GetFocus for the first control in the window's tab order.When a sheet is opened in an MDI frame, other events occur, such as Show and Activate for the sheet and Activate for the frame.

Sinon pour transformer un nom de colonne en objet dwo

DWObject dwo_macolonne

dwo_macolonne = dw_madw.Object.macolonne