NET Framework Solution In Search of the Lost Win32 API phần 3 ppsx

... 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 ... while reducing the performance overhead of interacting with the DLL. Chapter 6 begins a new phase of this book. Rather than look at the technologies involved in...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... 36 6 Using the DirectPlay Network Simulator 36 7 Using the MeshView Tool 36 9 Creating a Mesh 36 9 Adding Color 37 0 Making Other Changes 37 3 Using a Mesh Example 37 6 Initializing the Application 37 6 Loading ... 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 Wi...

Ngày tải lên: 12/08/2014, 21:20

... 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 Framewor...

Ngày tải lên: 12/08/2014, 21:20

... 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 ... enumerations. The PlatformID enumeration indicates the major platform: Win32s running on a Windows 3x system, Win32 running on a Windows 9x system, or a Windows NT/2000/X...

Ngày tải lên: 12/08/2014, 21:20

... problems—you obtain information on every aspect of the Win32 API call. Tip Many other developers are struggling with the same problems that you face in working with the .NET Framework. In a few cases, ... 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 Inter...

Ngày tải lên: 12/08/2014, 21:20

... 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...

Ngày tải lên: 12/08/2014, 21:20

... static Int32 MAKE_HRESULT(Int32 sev, Int32 fac, Int32 code) { Int64 Temp; // The temporary value of the error code. // Define the error code. Bit shift the severity // by 31 bits and the factor ... 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...

Ngày tải lên: 12/08/2014, 21:20

... three. The example changes the x− and y−coordinates to 0 .30 0000 as shown in the following listing (you’ll find the complete listing in the Box4.X file on the CD): Making Other Changes 37 3 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....

Ngày tải lên: 12/08/2014, 21:20

... 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 ... with the Win32 API. Unsafe code blocks double the potential for problems with the Win32 API call because the compiler and runtime both reduce the number of...

Ngày tải lên: 12/08/2014, 21:20