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QUESTION:
I have a dbSpinForm.
In that I have Set following properties:
Set Maximum_Position to 1800
Set Minimum_Position to 800
Set Wrap_State to True
If I clicked on the spin button, value is incremented / decremented the value 1.
But I want to to increment / decrement it by 10.
How can I do it?
ANSWER:
The VDF class does not have a standard (built-in function) available, but there is a Windows function that we can use. It is called "setting the acceleration". You can set the acceleration that takes place after N seconds. So if you hold down the up/down button it will increment/decrement by the set value after N seconds holding. The window message is called UDM_SETACCEL (see http://msdn2.microsoft.com/en-us/library/ms649988.aspx)
Besides the Windows feature, we also have to intercept the key_up and key_down. This is done in the standard spinform class and increments or decrements by one.
The enclosed example view shows how to use the enhanced spinform control. While the example uses SpinForm and not dbSpinForm, we can add the same functionality with the dbSpinForm subclass.
Contributed By:
Vincent Oorsprong
Company: Data Access Worldwide
email: vincent.oorsprong@dataaccess.eu
Web Site: http://www.dataaccess.eu
Web Links Related to this Article
File SpinForm.zip
URL=http://www.dataaccess.com/KBasePublic/Files/2295.SpinForm.zip
MSDN Library - UDM_SETACCEL Message
URL=http://msdn2.microsoft.com/en-us/library/ms649988.aspx
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