... the wave device.
Stopping the playback means not only stopping the sound, but also moving the pointer back to the beginning
of the data. When you play the sound again, Windows will begin at the ... file. The WAVE entry tells what type
of RIFF data the file contains—wave (digitized) audio. The fmt entry marks the beginning of the format data,
while the data en...
... three.
The example changes the x− and y−coordinates to 0.300000 as shown in the following listing (you’ll find the
complete listing in the Box4.X file on the CD):
Making Other Changes
373
Where ... determines which axes of the input device are affected by the ramp. The
Timing tab tells how long the effect lasts and determines if there’s a delay in starting it. Fi...
... confusion on the part of
other developers and increases the work required to use the Win32 API, without much benefit to the
originator.
1.
Verify the type of variable that a handle or other pointer ... using a single bit path. Instead of transmitting
the data in packets, the sender transmits the data continuously. This technique works well in
S
410
List of Side...
... possible.
Understanding the Effects of Pointers
One of the first issues that you’ll face when working with the Win32 API is the use of pointers the Win32
API uses them by the gross. You’ll find pointers as ... 421
List of Listings 422
Chapter 1: Overcoming Holes in the .NET Framework 422
Chapter 2: Working with Win32 API Data 422
Chapter 3: Accessing the...
... Imports
statement to the beginning of the file.
5.
Working with the Win32 API
Working directly with the Win32 API means locating the various functions you need—they’re not all in the
same DLL. In many cases, ... main DLLs,
you’ll find that you can patch quite a few of the obvious support holes in the .NET Framework.
Types of Win32 Access
There are two...
... on the GetWindowText() function to display the name of the
window in a textbox on the dialog. The use of an IntPtr as one of the inputs is hardly surprising, because it
contains the handle to the ... call the days of the week or the months of the year? The example in this section of the
chapter is meant to augment what the .NET Framework alread...
... might find other types of printers lacking in some areas.
Creating the Wrapper DLL
The wrapper DLL does most of the work of retrieving the printer information from the Win32 API in this
case. There ... experiment with some of the console functions presented in
this chapter.
Chapter 7 continues the search for ways to plug the holes in the .NET Framew...
... checking using the methods in this namespace, but it appears that the
OperatingSystem class relies on the GetVersion() Win32 API call instead of the GetVersionEx() Win32
API call to obtain the ... code includes an encapsulated version of the code used to gain access to the security
descriptor in the form of the GetFileSD() function.
Listing 8.3: Gaining Acc...
... haven’t discussed many of the buttons on the left side of the Windows Media Player yet. You’ll find that
several of them enable you to find media on the Internet. The main Internet button is Media ... functionality.
Avoiding compatibility problems means more than just knowing the contents of the Microsoft Knowledge
Base and the version of Windows installed on the h...
... re−create the MAKE_HRESULT() macro for other Win32 API
function calls. The third approach is the one used in the example. It creates functions the emulate both of the
macros. Listing 14.3 shows the ... compare the final size of the data structure (using the
value in the DevCaps.dwSize variable in this case) against an unmanaged equivalent (created in C/C+...