Spinner class

A spinner is a control made of two buttons with up/down arrows to store, increment and decrement a value. A spinner normally work in conjunction with an EditBox (the "buddy"). If the spinner control is created immediately after the edit box, they will operate together automatically if you include the WBC_GROUP style. In this case the value stored in the spinner will always be shown in the edit box. The edit box can also be used for entering numbers manually. To create a spinner, use the function wb_create_control() passing Spinner as the parameter cclass.

The default range when a spinner is created is 0 to 100. To change the spinner range, use the wb_set_value() function.

In the windows handler, you should always process the edit box which is attached to the spinner, not the spinner itself. If you try to process the spinner control you will receive the messages twice. Similarly, you should always get or set the value of the edit box instead of trying to get/set the value of the spinner directly. If you do the latter, you may miss any changes made manually on the edit box.

Example

// Create the edit box first wb_create_control($mainwin, EditBox, "0", 340, 45, 35, 21, IDC_EDITBOX, WBC_VISIBLE | WBC_ENABLED | WBC_NUMBER); // Then create the spinner. This is enough to make they work together wb_create_control($mainwin, Spinner, "", 378, 45, 16, 21, IDC_SPINNER, WBC_VISIBLE | WBC_ENABLED | WBC_GROUP); // Set the spinner range wb_set_value(wb_get_control($mainwin, IDC_SPINNER), null, -50, 50);

Spinner class

Example

See also