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Private Declare Sub keybd_event Lib “user32” (ByVal bVk As Byte, _ ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)Private Declare Function GetKeyState Lib “user32” (ByVal nVirtKey
Private Declare Function GetKeyState Lib “user32” (ByVal nVirtKey As Long) As _ Long’ Get the current state of the Insert keyFunction GetInsertKey() As Boolean GetInsertKey = GetKeyState(vbKeyInsert)End Function
Private Declare Function GetKeyState Lib “user32” (ByVal nVirtKey As Long) As _ Long’ Get the current state of the ScrollLock keyFunction GetScrollLockKey() As Boolean GetScrollLockKey = GetKeyState(vbKeyScrollLock)End Function
Private Declare Function GetKeyState Lib “user32” (ByVal nVirtKey As Long) As _ Long’ Get the current state of the CapsLock keyFunction GetCapsLockKey() As Boolean GetCapsLockKey = GetKeyState(vbKeyCapital)End Function
We almost always need to develop forms in which the contents to the control have to be selected whenever the user tabs to a textbox or a combobox. For this
Microsoft Visual SourceSafe (VSS) doesn’t store its data in a format you readily can use, and MSwouldn’t put the “Analyze and Fix” option on your menu if it wasn’t needed.To
SQL Sever 7.0 allows developers to execute commands against OLE DB data sources on different servers. In order to execute commands on remote servers, the SQL Server instance where the
There is an undocumented stored procedure that you can use to run a single command on all tables in a database. It is very useful when doing routine jobs on
In a previous tip, I showed how to swap two variables without using a temporary variable. There’s another version of this solution that applies to integral values only. Here it
C and C++ differ in their handling of enum types. While C allows you to assign a plain int to an enum variable, C++ doesn’t. Therefore, a C compiler will
The standard stream object cerr and its matching wide-character version, wcerr, are unbuffered. This means that they are automatically flushed after each operation; they do not buffer data. This feature
The Standard Library provides the pow() functions (declared in ) which takes two arguments of type double, x and y: double powl(double x, double y);pow() returns the value calculated of
Internationalized software must enable easy porting to other locales. A locale defines language and specific cultural conventions. The process of adjusting internationalized software to a particular locale is called localization
Question: Winsock with VB works fine if I specify a port (e.g., 1001). However when I set the Winsock’s port (local and remote) properties to 0 so that they would
Question: When accessing dbaccess through a script (in UNIX), what is the importance of the hyphen after the database name? For example: dbaccess mystores-
Question: I am getting an error (“Could not do a physical-order read to fetch next row” #244) while executing a job that runs a set of SQL statements every 30
Question: I cannot get 6 of 60 units to log in to an Informix application server. The units are all identical and they can ping the server. I get the
Question: Can I enable an Outlook profile to access two .PAB’s (the same way it can access two PST’s)? Answer: No, I’m afraid not. However, you could import one of
Question: How do I use a SQL select statement to combine two tables that are identical in structure but contain different data? Answer: The union statement allows you to combine
Question: My Informix usually server starts fine, but when I try to add a database chunk with the onspaces command I get an error (“shared memory not initialized”). Any ideas?
Question: My Informix 7.30 dies occasionally and returns the following message: 16:01:06 Checkpoint Completed: duration was 0 seconds.16:06:06 Checkpoint Completed: duration was 0 seconds.16:11:06 Checkpoint Completed: duration was 0 seconds.16:16:06
Question: How do I know if I am already in a transaction when I call a procedure from another one? Answer: I’m not aware of an easy way to do
n this final installment of the text editor project, we’re going to be adding these commonly used features: Find, Find Again Cut, Copy, Paste As usual, the final code is
e’ve all seen Web sites that display great-looking, informative graphs generated from dynamic data. Stock market reports are one common example of these; sales and marketing information also frequently get
Question: Should I make a call to GetObjectContext() in every function in my DLL? Obviously, you are going to do that in your “main” methods, but does calling GetObjectContext() in
Question: When should you use reference to pointers like those found in function arguments (class_name * & )? Answer: When you want the callee to change the pointer itself, not
When you need to compare two User Defined Type (UDT) variables to check whether they are equal, the only approach that you can follow in plain VB is to compare
Question: Since template code is generated at compile time, it implies that there should be a separate set of code for each template objects created. Does that mean templates increase
Question: Where can I find a list of reserved words in C++? Answer: Most C++ books include a list of reserved keywords. Here’s the list: asm do if return typedefauto










