Speedy List Boxes

One way to speed list-box loading is to eliminate the constant redrawingrequired while loading. You can do this by calling the LockWindowUpdateAPI. LockWindowUpdate accepts an HWND as a parameter to start the lockand a zero parameter to unlock it. Only one window can be locked at a time.If LockWIndowUpdate is called with another HWND, the currently locked windowwill be unlocked. To run this sample, put a command button and a list box on a form andpaste in this code. Your code may not require the DoEvents within the loopthat adds items, and a tight basic loop will keep the list from updating.However, there are times when the DoEvents is required.

 Private Declare Function LockWindowUpdate Lib "user32" (ByVal hwndLock As Long) As LongPrivate Sub Command1_Click()	Dim i%	LockWindowUpdate (List1.hWnd)	For i% = 1 To 1000		List1.AddItem Str$(i%)		DoEvents	Next	LockWindowUpdate (0&)End Sub
Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS