The parent, parent, and widget flags, f, are passed to the QDialog::QDialog() constructor. The parent argument is the dialog's parent widget. As each file is processed call setValue(1), setValue(2), etc., finally calling setValue(50) after examining the last file. Before examining the first file, call setValue(0). For example, if the operation is to examine 50 files, this value minimum value would be 0, and the maximum would be 50. The minimum and maximum is the number of steps in the operation for which this progress dialog shows progress. If QString() is passed then no cancel button is shown. The cancelButtonText is the text to display on the cancel button. The labelText is the text used to remind the user what is progressing. Member Function Documentation QProgressDialog:: QProgressDialog(const QString & labelText, const QString & cancelButtonText, int minimum, int maximum, QWidget * parent = nullptr, Qt::WindowFlags f = Qt::WindowFlags()) Do the operation in a loop, call setValue() at intervals, and check for cancellation with wasCanceled(). There are two ways of using QProgressDialog: modal and modeless.Ĭompared to a modeless QProgressDialog, a modal QProgressDialog is simpler to use for the programmer. Note that if you set a new maximum (using setMaximum() or setRange()) that equals your current value(), the dialog will not close regardless. Use setAutoReset() and setAutoClose() to change this behavior. The dialog automatically resets and hides itself at the end of the operation.
Progress starts at the value set by setMinimum(), and the progress dialog shows that the operation has finished when you call setValue() with the value set by setMaximum() as its argument. It can be the number of files copied, the number of bytes received, the number of iterations through the main loop of your algorithm, or some other suitable unit. The number of steps can be chosen arbitrarily. Use setMinimum() and setMaximum() or the constructor to set the number of "steps" in the operation and call setValue() as the operation progresses. QProgressDialog offers a solution to this problem: it estimates the time the operation will take (based on time for steps), and only shows itself if that estimate is beyond minimumDuration() (4 seconds by default). It can also give the user an opportunity to abort the operation.Ī common problem with progress dialogs is that it is difficult to know when to use them operations take different amounts of time on different hardware. Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.A progress dialog is used to give the user an indication of how long an operation is going to take, and to demonstrate that the application has not frozen. Changes made to the dialog box by the user are lost when the dialog box is closed. Use the Show method to display a UserForm. You can write event procedures that run when the events occur. For example, a command button has a Click event that occurs when the user clicks the command button.
Dialog maker code#
You can initialize controls in a procedure before you show a form, or you can add code to the Initialize event of the form.Īll controls have a predefined set of events. Right-click a control in design mode and click Properties to display the Properties window. On the Insert menu in the Visual Basic Editor, click UserForm.įind the control you want to add in the Toolbox and drag the control onto the form.
Use the following procedure to create a custom dialog box:
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