Windows APIs - Page 3

I read a great advanced tip on how to create a GUID in "Generate Unique String IDs" ["101 Tech Tips for ...

Some developers suggest putting DoEvents in loops to keep your application responsive. This is never a good idea. If the loop is short, you don

If you do a lot of floating-point division operations in VB, you can optimize these operations by multiplying by the reciprocal value. For example, instead of performing this ...

When I use variables that need to be saved to the Registry or to an INI file, I sometimes forget to place the API call after the variables in a program have changed. This might cause problems later ...

ShellExecute is one of the most flexible Win32 APIs. Using ShellExecute, you can pass any filename, and if the file

You can allow users to resize a control—just like in VB design mode—with a mouse, using two simple API calls. You can resize the control—top-left, top, top-right, left, right, ...

I'm using a function named Browseforfolders() that uses the following code: Private Declare Function SHBrowseForFolder Lib "shell32.dll" _ Alias "SHBrowseForFolderA" (lpBrowseInfo As BROWSEINFO) As Long and the declaration of this constant: Private Const BIF_RETURNONLYFSDIRS = &H1 What I would like to know is, if using this function, is it also possible to obtain the files from the directory? Best regards, Bruno bruno@escripovoa.pt Visual Basic Software developer

Here's a cool way to swap ...

You've probably wanted to limit the normal operations of a form, such as resizing it, preventing it from being minimized or maximized, or allowing it to be closed only when you say so. The trick is ...

Have you ever tried to pass a VB system color constant-such as vbButtonFace-to an API call that asks for a color? I frequently need to use system colors for GDI calls, and prefer to use the VB system ...

Here's a quick way to drop a drive's folder hierarchy into a TreeView control. The advantage to using this method is that folders are enumerated only when a node is expanded, so your app won't waste ...

If you need unique string IDs and don't have a sure-fire way of either generating or guaranteeing the generated ID is unique, then you need a Universally Unique ID (UUID) or Globally Unique ID (GUID) ...

Most API function that return a string require that you pass a buffer where they can place the result as a null-terminated ANSI string (a.k.a. ASCIIZ string). The calling code must then extract the string by taking all the characters up to the first Chr$(0) character, if there is one. For ...

Integrate Microsoft Word 97's spellchecking capability into VB apps while maintaining formatting within a rich textbox. To test this ...

Use the SendMessage API to set tab stops in a VB listbox by creating these declarations and this routine in a ...

In your apps, do the right thing: Use the computer's Temp folder to hold your temporary files. To find that location, paste this code into the Declarations section of a ...

Use this API function wrapper to retrieve localization and personalization ...

If you've ever wanted to align text on a command button and found you can do it only by using spaces in the caption, there are a couple of constants that can help you do this with the SetWindowLong ...

Consider the following code ...

The Media Control Interface (MCI) can easily support multiple CD audio devices.