coder000 » api

Drag or move window from surface in vb.net

Rahul Vyas — Wed, 02 Sep 2009 05:02:51 +0000

There are applications in which we can move the form from any place on the window (not just the title bar). Here is the tutorial on how can we do this. The code explores – how does Windows Operating System handle a Window (we call it ‘form’ in Visual Basic) & then uses the SendMessage API to achieve the promised task.

First of all, get it clear in your mind that whatever Windows does, it does it through APIs (API: Application Programmer’s Interface). API is a set of functions which are used by all the Windows applications and services. The developers [...]

Add bitmap to menu in vb.net

Rahul Vyas — Wed, 02 Sep 2009 04:39:39 +0000

I am sure we all have developed applications with menus. Right? And obviously, we all use the applications with menus. Take Office for example, or our .NET IDE. What is the difference between the menus of these applications and our menus? These applications have bitmaps in their menus. .NET does not have the facility of putting images in menus by design. How can we achieve this?

The first step is to declare the API we are going to use:

Private Declare Sub SetMenuItemBitmaps Lib "user32" (ByVal hMenu As IntPtr, ByVal nPosition As Int32, ByVal wFlags As Int32, ByVal hBitmapUnchecked As IntPtr, ByVal [...]

Monitor and respond to all Windows keyboard events in VB Net

Rahul Vyas — Tue, 01 Sep 2009 20:54:34 +0000

How do keyloggers work. How to read what key is pressed irrespective of focus on form or visibility of form and write code for handling it. Object Oriented wrapper for Windows Hook (with event) to address the above issues.