The Old New Thing: Practical Development Throughout the Evolution of Windows
Autor Raymond Chenen Limba Engleză Paperback – 30 noi 2006
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Specificații
ISBN-13: 9780321440303
ISBN-10: 0321440307
Pagini: 517
Dimensiuni: 178 x 235 x 27 mm
Greutate: 0.78 kg
Ediția:1
Editura: Addison-Wesley Professional
Locul publicării:Boston, United States
ISBN-10: 0321440307
Pagini: 517
Dimensiuni: 178 x 235 x 27 mm
Greutate: 0.78 kg
Ediția:1
Editura: Addison-Wesley Professional
Locul publicării:Boston, United States
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Descriere
"Raymond Chen is the original raconteur of Windows."
--Scott Hanselman, ComputerZen.com
"Raymond has been at Microsoft for many years and has seen many nuances of Windows that others could only ever hope to get a glimpse of. With this book, Raymond shares his knowledge, experience, and anecdotal stories, allowing all of us to get a better understanding of the operating system that affects millions of people every day. This book has something for everyone, is a casual read, and I highly recommend it!"
--Jeffrey Richter, Author/Consultant, Cofounder of Wintellect
"Very interesting read. Raymond tells the inside story of why Windows is the way it is."
--Eric Gunnerson, Program Manager, Microsoft Corporation
"Absolutely essential reading for understanding the history of Windows, its intricacies and quirks, and why they came about."
--Matt Pietrek, MSDN Magazine's Under the Hood Columnist
"Raymond Chen has become something of a legend in the software industry, and in this book you'll discover why. From his high-level reminiscences on the design of the Windows Start button to his low-level discussions of GlobalAlloc that only your inner-geek could love, The Old New Thing is a captivating collection of anecdotes that will help you to truly appreciate the difficulty inherent in designing and writing quality software."
--Stephen Toub, Technical Editor, MSDN Magazine
Why does Windows work the way it does? Why is Shut Down on the Start menu? (And why is there a Start button, anyway?) How can I tap into the dialog loop? Why does the GetWindowText function behave so strangely? Why are registry files called "hives"?
Many of Windows' quirks have perfectly logical explanations, rooted in history. Understand them, and you'll be more productive and a lot less frustrated. Raymond Chen--who's spent more than a decade on Microsoft's Windows development team--reveals the "hidden Windows" you need to know.
Chen's engaging style, deep insight, and thoughtful humor have made him one of the world's premier technology bloggers. Here he brings together behind-the-scenes explanations, invaluable technical advice, and illuminating anecdotes that bring Windows to life--and help you make the most of it.
A few of the things you'll find inside:
--Scott Hanselman, ComputerZen.com
"Raymond has been at Microsoft for many years and has seen many nuances of Windows that others could only ever hope to get a glimpse of. With this book, Raymond shares his knowledge, experience, and anecdotal stories, allowing all of us to get a better understanding of the operating system that affects millions of people every day. This book has something for everyone, is a casual read, and I highly recommend it!"
--Jeffrey Richter, Author/Consultant, Cofounder of Wintellect
"Very interesting read. Raymond tells the inside story of why Windows is the way it is."
--Eric Gunnerson, Program Manager, Microsoft Corporation
"Absolutely essential reading for understanding the history of Windows, its intricacies and quirks, and why they came about."
--Matt Pietrek, MSDN Magazine's Under the Hood Columnist
"Raymond Chen has become something of a legend in the software industry, and in this book you'll discover why. From his high-level reminiscences on the design of the Windows Start button to his low-level discussions of GlobalAlloc that only your inner-geek could love, The Old New Thing is a captivating collection of anecdotes that will help you to truly appreciate the difficulty inherent in designing and writing quality software."
--Stephen Toub, Technical Editor, MSDN Magazine
Why does Windows work the way it does? Why is Shut Down on the Start menu? (And why is there a Start button, anyway?) How can I tap into the dialog loop? Why does the GetWindowText function behave so strangely? Why are registry files called "hives"?
Many of Windows' quirks have perfectly logical explanations, rooted in history. Understand them, and you'll be more productive and a lot less frustrated. Raymond Chen--who's spent more than a decade on Microsoft's Windows development team--reveals the "hidden Windows" you need to know.
Chen's engaging style, deep insight, and thoughtful humor have made him one of the world's premier technology bloggers. Here he brings together behind-the-scenes explanations, invaluable technical advice, and illuminating anecdotes that bring Windows to life--and help you make the most of it.
A few of the things you'll find inside:
- What vending machines can teach you about effective user interfaces
- A deeper understanding of window and dialog management
- Why performance optimization can be so counterintuitive
- A peek at the underbelly of COM objects and the Visual C++ compiler
- Key details about backwards compatibility--what Windows does and why
- Windows program security holes most developers don't know about
- How to make your program a better Windows citizen
Cuprins
Preface xxiiiAcknowledgments xxviiAbout the Author xxixChapter One: Initial Forays into User Interface DesignWhy do you have to click the Start button to shut down? 1
Why doesn't Windows have an "expert mode"? 2
The default answer to every dialog box is Cancel 3
The best setting is the one you don't even sense, but it's there, and it works the way you expect 6
In order to demonstrate our superior intellect, we will now ask you a question you cannot answer 7
Why doesn't Setup ask you if you want to keep newer versions of operating system files? 7
Thinking through a feature 9
When do you disable an option, and when do you remove it? 12
When do you put ... after a button or menu? 13
User interface design for vending machines 13
User interface design for interior door locks 15
The evolution of mascara in Windows UI 16
Chapter Two: Selected Reminiscences on Windows 95Why isn't my time zone highlighted on the world map? 19
Why didn't Windows 95 boot with more than 1GB of memory? 20
Why did Windows 95 have functions called BEAR, BUNNY, and PIGLET? 22
What about BOZOSLIVEHERE and TABTHETEXTOUTFORWIMPS? 23
What was in the Windows 95 Special Edition box? 25
Windows brings out the Rorschach test in everyone 25
The martial arts logon picture 26
Why a really large dictionary is not a good thing 27
An insight into the Windows 95 startup sound 27
It's a lot easier to write a column if you don't care about accuracy 28
Why does the System Properties page round the memory size? 29
Why does my hard drive light flash every few seconds? 29
The hunt for a faster syscall trap 30
One byte used to cost a dollar 31
Each product-support call costs a sale 32
Why isn't Tweak UI included on the Windows CD? 32
Turns out that you can't install Windows via xcopy 34
Buying an entire Egghead Software store 35
The history of the Windows PowerToys 35
How did Windows choose its final build numbers? 38
Why doesn't the build number increment for service packs? 39
Chapter Three: The Secret Life of GetWindowTextHow windows manage their text 41
Enter GetWindowText 42
What if I don't like these rules? 43
Can you give an example where this makes a difference? 44
Why are the rules for GetWindowText so weird? 44
Chapter Four: The Taskbar and Notification AreaWhy do some people call the taskbar the "tray"? 47
Why does the taskbar default to the bottom of the screen? 49
Why doesn't the clock in the taskbar display seconds? 50
Why doesn't the taskbar show an analog clock? 51
When I dock my taskbar vertically, why does the word "Start" disappear? 52
Why don't notification icons get a message when the user clicks the "X" button? 52
Chapter Five: Puzzling Interface IssuesWhat are those little overlay icons? 53
Why are these unwanted files/folders opening when I log on? 54
What do the text label colors mean for files? 56
Why does my advanced options dialog say ON and OFF after every option? 57
What determines the order in which icons appear in the Alt+Tab list? 58
Why is the read-only property for folders so strange? 59
What's with those blank taskbar buttons that go away when I click on them? 59
What is the difference between Minimize All and Show Desktop? 60 What does boldface on a menu mean? 62
Where do those customized Web site icons come from? 62
Where did my task manager tabs and buttons go? 63
Will dragging a file result in a move or a copy? 64
Why does the Links folder keep re-creating itself? 65
Why are documents printed out of order when you multiselect and choose Print? 66
Raymond spends the day doing product support 67
Blow the dust out of the connector 68
How much is that gigabyte in the window? 69
Why can't I remove the "For test/evaluation purposes only" tag? 70
Chapter Six: A History of the GlobalAlloc FunctionThe early years 71
Selectors 73
Transitioning to Win32 75
A peek at the implementation 76
Chapter Seven: Short Topics in Windows ProgrammingThe scratch program 79
Getting a custom right-click menu for the caption icon 85
What's the difference between CreateMenu and CreatePopupMenu? 86
When does the window manager destroy menus automatically? 88
Painting only when your window is visible onscreen 89
Determining whether your window is covered 93
Using bitmap brushes for tiling effects 95
What is the DC brush good for? 98
Using ExtTextOut to draw solid rectangles 100
Using StretchBlt to draw solid rectangles 102
Displaying a string without those ugly boxes 103
Semaphores don't have owners 110
An auto-reset event is just a stupid semaphore 112
Chapter Eight: Window ManagementWhy do I get spurious WM_MOUSEMOVE messages? 115
Why is there no WM_MOUSEENTER message? 118
The white flash 118
What is the hollow brush for? 119
What's so special about the desktop window? 120
The correct order for disabling and enabling windows 121
A subtlety in restoring the previous window position 122
UI-modality versus code-modality 123
The WM_QUIT message and modality 126
The importance of setting the correct owner for modal UI 129
Interacting with a program that has gone modal 132
A timed MessageBox, the cheap version 133
The scratch window 135
The bonus window bytes at GWLP_USERDATA 136
A timed MessageBox, the better version 136
A timed context menu 138
Why does my window receive messages after it has been destroyed? 139
Chapter Nine: Reminiscences on HardwareHardware backward compatibility 141
The ghost CD-ROM drives 142
The Microsoft corporate network: 1.7 times worse than hell 143
When vendors insult themselves 144
Defrauding the WHQL driver certification process 145
A twenty-foot-long computer 146
The USB cart of death 147
New device detected: Boeing 747 147
There's an awful lot of overclocking out there 148
Chapter Ten: The Inner Workings of the Dialog ManagerOn the dialog procedure 151
The evolution of dialog templates 163
Why dialog templates, anyway? 196
How dialogs are created 197
The modal dialog loop 204
Nested dialogs and DS_CONTROL 216
Why do we need a dialog loop, anyway? 224
Why do dialog editors start assigning control IDs with 100? 225
What happens inside DefDlgProc? 226
Never leave focus on a disabled control 228
What happens inside IsDialogMessage? 229
Why is the X button disabled on my message box? 237
Chapter Eleven: General Software IssuesWhy daylight saving time is nonintuitive 239
Why do timestamps change when I copy files to a floppy? 241
Don't trust the return address 242
Writing a sort comparison function 243
You can read a contract from the other side 245
The battle between pragmatism and purity 249
Optimization is often counterintuitive 250
On a server, paging = death 253
Don't save anything you can recalculate 254
Performance gains at the cost of other components 255
Performances consequences of polling 257
The poor man's way of identifying memory leaks 258
A cache with a bad policy is another name for a memory leak 259
Chapter Twelve: Digging into the Visual C++ CompilerDo you know when your destructors run? 267
The layout of a COM object 272
Adjustor thunks 274
Pointers to member functions are very strange animals 276
What is __purecall? 280
Chapter Thirteen: Backward CompatibilitySometimes an app just wants to crash 283
When programs grovel into undocumented structures 284
Why not just block the applications that rely on undocumented behavior? 286
Why 16-bit DOS and Windows are still with us 288
What's the deal with those reserved filenames such as NUL and CON? 290
Why is a drive letter permitted in front of UNC paths (sometimes)? 292
Do not underestimate the power of the game Deer Hunter 293
Sometimes the bug isn't apparent until late in the game 293
The long and sad story of the Shell Folders key 294
The importance of error code backward compatibility 297
Sure, we do that 298
When programs patch the operating system and mess up 299
The compatibility constraints of even your internal bookkeeping 300
Why does Windows keep your BIOS clock on local time? 301
Bad version number checks 302
The ways people mess up IUnknown::QueryInterface 303
When programs assume that the system will never change, Episode 1 305
When programs assume that the system will never change, Episode 2 306
The decoy Display Control Panel 308
The decoy visual style 309
Chapter Fourteen: Etymology and HistoryWhat do the letters W and L stand for in WPARAM and LPARAM? 311
Why was nine the maximum number of monitors in Windows 98? 312
Why is a registry file called a hive? 312
The management of memory for resources in 16-bit Windows 312
What is the difference between HINSTANCE and HMODULE? 313
What was the purpose of the hPrevInstance parameter to WinMain? 316
Why is the GlobalWire function called GlobalWire? 317
What was the difference between LocalAlloc and GlobalAlloc? 318
What was the point of the GMEM_SHARE flag? 320
Why do I sometimes see redundant casts before casting to LPARAM? 321
Why do the names of the registry functions randomly end in Ex? 322
What's the difference between SHGetMalloc, SHAlloc, CoGetMalloc, and CoTaskMemAlloc? 324
Why is Windows Error Reporting nicknamed Dr. Watson? 329
What happened to DirectX 4? 330
Why are HANDLE return values so inconsistent? 331
Why do text files end in Ctrl+Z? 333
Why is the line terminator CR+LF? 334
TEXT vs. _TEXT vs. _T, and UNICODE vs. _UNICODE 335
Why are dialog boxes initially created hidden? 335
When you change the insides, nobody notices 336
If FlushInstructionCache doesn't do anything, why do you have to call it? 337
If InitCommonControls doesn't do anything, why do you have to call it? 338
Why did InterlockedIncrement/Decrement only return the sign of the result? 339
Why does the function WSASetLastError exist? 340
Why are there broadcast-based mechanisms in Windows? 340
Where did windows minimize to before the taskbar was invented? 341
Why didn't the desktop window shrink to exclude the taskbar? 343
Why does the caret stop blinking when I tap the Alt key? 343
What is the deal with the ES_OEMCONVERT flag? 345
The story behind file system tunneling 346
Why do NTFS and Explorer disagree on filename sorting? 347
The Date/Time Control Panel is not a calendar 350
How did Windows 95 rebase DLLs? 351
What are SYSTEM_FONT and DEFAULT_GUI_FONT? 353
Why do up-down controls have the arrows backward? 354
A ticket to the Windows 95 launch 355
Chapter Fifteen: How Window Messages Are Delivered and RetrievedSent and posted messages 358
The life of a sent message 363
The life of a posted message 364
Generated posted messages 365
When does SendMessageCallback call you back? 368
What happens in SendMessageTimeout when a message times out? 369
Applying what you've learned to some message processing myths 370
How can you tell who sent or posted you a message? 371
You can't simulate keyboard input with PostMessage 371
Chapter Sixteen: International ProgrammingCase mapping on Unicode is hard 373
An anecdote about improper case mapping 374
Why you can't rotate text 375
What are these directories called 0409 and 1033? 379
Keep your eye on the code page 379
Why is the default 8-bit codepage called "ANSI"? 388
Why is the default console codepage called "OEM"? 388
Why is the OEM code page often called ANSI? 389
Logical but perhaps surprising consequences of converting between Unicode and ANSI 391
Chapter Seventeen: SecurityWorld-writable files 393
Hiding files from Explorer 394
Stealing passwords 395
Silent install of uncertified drivers 396
Your debugging code can be a security hole 397
Why shared sections are a security hole 398
Internet Explorer's Enhanced Security Configuration doesn't trust the intranet 402
Chapter Eighteen: Windows 2000 and Windows XPWhy doesn't the new Start menu use Intellimenus in the All Programs list? 403
Why is there no programmatic access to the Start menu pin list? 404
Why does Windows XP Service Pack 2 sometimes forget my CD autoplay settings? 406
The unsafe device removal dialog 407
Two brief reminiscences on the Windows XP Comments? button 408
Why does Explorer eject the CD after you finish burning it? 408
Why does Windows setup lay down a new boot sector? 409
Psychic debugging: Why your expensive four-processor machine is ignoring three of its processors 410
Psychic debugging: Why your CPU usage is hovering at 50% 411
What's the deal with the DS_SHELLFONT flag? 412
Why does DS_SHELLFONT = DS_FIXEDSYS | DS_SETFONT? 413
What other effects does DS_SHELLFONT have on property sheet pages? 414
Chapter Nineteen: Win32 Design IssuesWhy does Win32 fail a module load if an import could not be resolved? 417
Why are structure sizes checked strictly? 418
Why do I have to return this goofy value for WM_DEVICECHANGE? 421
The arms race between programs and users 422
Why can't you trap TerminateProcess? 424
Why do some processes stay in Task Manager after they've been killed? 424
Understanding the consequences of WAIT_ABANDONED 425
Why can't I put hyperlinks in notification icon balloon tips? 427
Why can't I use the same tree item multiple times? 429
The kooky STRRET structure 429
Why can't you set UTF-8 as your ANSI code page? 431
When should you use a sunken client area? 432
Why is there no all-encompassing superset version of Windows? 433
Why is it even possible to disable the desktop, anyway? 433
What are the window and menu nesting limits? 435
What's the difference between HWND_TOP and HWND_TOPMOST? 435
Chapter Twenty: TaxesHierarchical Storage Management 438
Geopolitics 439
Remote Desktop Connection and Painting 440
Fast User Switching and Terminal Services 443
Multiple users 444 Roaming user profiles 445
Redirected folders 447
My Documents vs. Application Data 450
Large address spaces 451
Power management and detecting battery power 455
Intermittent network connectivity 457
Anti-aliased fonts and ClearType 459
High DPI displays 462
Multiple monitors 467
The work area 470
Displaying your pop-up windows in the right place 471
Accessibility 472
Chapter Twenty-One: SillinessThe much-misunderstood "nop" action 481
Don't let Marketing mess with your slides 482
Whimsical bug reports 482
Watch out for those sample URLs 483
No code is an island 484
But I have Visual Basic Professional 485
It's all about the translucent plastic 485
My first death threat 486
You can't escape those AOL CDs 487
Giving fair warning before plugging in your computer 487
Spider Solitaire unseats the reigning champion 488
There's something about Rat Poker 489
Be careful what you name your product group 490
The psychology of naming your internal distribution lists 490
Differences between managers and programmers 491
Using floppy disks as semaphore tokens 492
When a token changes its meaning midstream 492
Whimsical embarrassment as a gentle form of reprimand 493
Using a physical object as a reminder 494
The office disco party 495
The Halloween-themed lobby 495
Index 497
Why doesn't Windows have an "expert mode"? 2
The default answer to every dialog box is Cancel 3
The best setting is the one you don't even sense, but it's there, and it works the way you expect 6
In order to demonstrate our superior intellect, we will now ask you a question you cannot answer 7
Why doesn't Setup ask you if you want to keep newer versions of operating system files? 7
Thinking through a feature 9
When do you disable an option, and when do you remove it? 12
When do you put ... after a button or menu? 13
User interface design for vending machines 13
User interface design for interior door locks 15
The evolution of mascara in Windows UI 16
Chapter Two: Selected Reminiscences on Windows 95Why isn't my time zone highlighted on the world map? 19
Why didn't Windows 95 boot with more than 1GB of memory? 20
Why did Windows 95 have functions called BEAR, BUNNY, and PIGLET? 22
What about BOZOSLIVEHERE and TABTHETEXTOUTFORWIMPS? 23
What was in the Windows 95 Special Edition box? 25
Windows brings out the Rorschach test in everyone 25
The martial arts logon picture 26
Why a really large dictionary is not a good thing 27
An insight into the Windows 95 startup sound 27
It's a lot easier to write a column if you don't care about accuracy 28
Why does the System Properties page round the memory size? 29
Why does my hard drive light flash every few seconds? 29
The hunt for a faster syscall trap 30
One byte used to cost a dollar 31
Each product-support call costs a sale 32
Why isn't Tweak UI included on the Windows CD? 32
Turns out that you can't install Windows via xcopy 34
Buying an entire Egghead Software store 35
The history of the Windows PowerToys 35
How did Windows choose its final build numbers? 38
Why doesn't the build number increment for service packs? 39
Chapter Three: The Secret Life of GetWindowTextHow windows manage their text 41
Enter GetWindowText 42
What if I don't like these rules? 43
Can you give an example where this makes a difference? 44
Why are the rules for GetWindowText so weird? 44
Chapter Four: The Taskbar and Notification AreaWhy do some people call the taskbar the "tray"? 47
Why does the taskbar default to the bottom of the screen? 49
Why doesn't the clock in the taskbar display seconds? 50
Why doesn't the taskbar show an analog clock? 51
When I dock my taskbar vertically, why does the word "Start" disappear? 52
Why don't notification icons get a message when the user clicks the "X" button? 52
Chapter Five: Puzzling Interface IssuesWhat are those little overlay icons? 53
Why are these unwanted files/folders opening when I log on? 54
What do the text label colors mean for files? 56
Why does my advanced options dialog say ON and OFF after every option? 57
What determines the order in which icons appear in the Alt+Tab list? 58
Why is the read-only property for folders so strange? 59
What's with those blank taskbar buttons that go away when I click on them? 59
What is the difference between Minimize All and Show Desktop? 60 What does boldface on a menu mean? 62
Where do those customized Web site icons come from? 62
Where did my task manager tabs and buttons go? 63
Will dragging a file result in a move or a copy? 64
Why does the Links folder keep re-creating itself? 65
Why are documents printed out of order when you multiselect and choose Print? 66
Raymond spends the day doing product support 67
Blow the dust out of the connector 68
How much is that gigabyte in the window? 69
Why can't I remove the "For test/evaluation purposes only" tag? 70
Chapter Six: A History of the GlobalAlloc FunctionThe early years 71
Selectors 73
Transitioning to Win32 75
A peek at the implementation 76
Chapter Seven: Short Topics in Windows ProgrammingThe scratch program 79
Getting a custom right-click menu for the caption icon 85
What's the difference between CreateMenu and CreatePopupMenu? 86
When does the window manager destroy menus automatically? 88
Painting only when your window is visible onscreen 89
Determining whether your window is covered 93
Using bitmap brushes for tiling effects 95
What is the DC brush good for? 98
Using ExtTextOut to draw solid rectangles 100
Using StretchBlt to draw solid rectangles 102
Displaying a string without those ugly boxes 103
Semaphores don't have owners 110
An auto-reset event is just a stupid semaphore 112
Chapter Eight: Window ManagementWhy do I get spurious WM_MOUSEMOVE messages? 115
Why is there no WM_MOUSEENTER message? 118
The white flash 118
What is the hollow brush for? 119
What's so special about the desktop window? 120
The correct order for disabling and enabling windows 121
A subtlety in restoring the previous window position 122
UI-modality versus code-modality 123
The WM_QUIT message and modality 126
The importance of setting the correct owner for modal UI 129
Interacting with a program that has gone modal 132
A timed MessageBox, the cheap version 133
The scratch window 135
The bonus window bytes at GWLP_USERDATA 136
A timed MessageBox, the better version 136
A timed context menu 138
Why does my window receive messages after it has been destroyed? 139
Chapter Nine: Reminiscences on HardwareHardware backward compatibility 141
The ghost CD-ROM drives 142
The Microsoft corporate network: 1.7 times worse than hell 143
When vendors insult themselves 144
Defrauding the WHQL driver certification process 145
A twenty-foot-long computer 146
The USB cart of death 147
New device detected: Boeing 747 147
There's an awful lot of overclocking out there 148
Chapter Ten: The Inner Workings of the Dialog ManagerOn the dialog procedure 151
The evolution of dialog templates 163
Why dialog templates, anyway? 196
How dialogs are created 197
The modal dialog loop 204
Nested dialogs and DS_CONTROL 216
Why do we need a dialog loop, anyway? 224
Why do dialog editors start assigning control IDs with 100? 225
What happens inside DefDlgProc? 226
Never leave focus on a disabled control 228
What happens inside IsDialogMessage? 229
Why is the X button disabled on my message box? 237
Chapter Eleven: General Software IssuesWhy daylight saving time is nonintuitive 239
Why do timestamps change when I copy files to a floppy? 241
Don't trust the return address 242
Writing a sort comparison function 243
You can read a contract from the other side 245
The battle between pragmatism and purity 249
Optimization is often counterintuitive 250
On a server, paging = death 253
Don't save anything you can recalculate 254
Performance gains at the cost of other components 255
Performances consequences of polling 257
The poor man's way of identifying memory leaks 258
A cache with a bad policy is another name for a memory leak 259
Chapter Twelve: Digging into the Visual C++ CompilerDo you know when your destructors run? 267
The layout of a COM object 272
Adjustor thunks 274
Pointers to member functions are very strange animals 276
What is __purecall? 280
Chapter Thirteen: Backward CompatibilitySometimes an app just wants to crash 283
When programs grovel into undocumented structures 284
Why not just block the applications that rely on undocumented behavior? 286
Why 16-bit DOS and Windows are still with us 288
What's the deal with those reserved filenames such as NUL and CON? 290
Why is a drive letter permitted in front of UNC paths (sometimes)? 292
Do not underestimate the power of the game Deer Hunter 293
Sometimes the bug isn't apparent until late in the game 293
The long and sad story of the Shell Folders key 294
The importance of error code backward compatibility 297
Sure, we do that 298
When programs patch the operating system and mess up 299
The compatibility constraints of even your internal bookkeeping 300
Why does Windows keep your BIOS clock on local time? 301
Bad version number checks 302
The ways people mess up IUnknown::QueryInterface 303
When programs assume that the system will never change, Episode 1 305
When programs assume that the system will never change, Episode 2 306
The decoy Display Control Panel 308
The decoy visual style 309
Chapter Fourteen: Etymology and HistoryWhat do the letters W and L stand for in WPARAM and LPARAM? 311
Why was nine the maximum number of monitors in Windows 98? 312
Why is a registry file called a hive? 312
The management of memory for resources in 16-bit Windows 312
What is the difference between HINSTANCE and HMODULE? 313
What was the purpose of the hPrevInstance parameter to WinMain? 316
Why is the GlobalWire function called GlobalWire? 317
What was the difference between LocalAlloc and GlobalAlloc? 318
What was the point of the GMEM_SHARE flag? 320
Why do I sometimes see redundant casts before casting to LPARAM? 321
Why do the names of the registry functions randomly end in Ex? 322
What's the difference between SHGetMalloc, SHAlloc, CoGetMalloc, and CoTaskMemAlloc? 324
Why is Windows Error Reporting nicknamed Dr. Watson? 329
What happened to DirectX 4? 330
Why are HANDLE return values so inconsistent? 331
Why do text files end in Ctrl+Z? 333
Why is the line terminator CR+LF? 334
TEXT vs. _TEXT vs. _T, and UNICODE vs. _UNICODE 335
Why are dialog boxes initially created hidden? 335
When you change the insides, nobody notices 336
If FlushInstructionCache doesn't do anything, why do you have to call it? 337
If InitCommonControls doesn't do anything, why do you have to call it? 338
Why did InterlockedIncrement/Decrement only return the sign of the result? 339
Why does the function WSASetLastError exist? 340
Why are there broadcast-based mechanisms in Windows? 340
Where did windows minimize to before the taskbar was invented? 341
Why didn't the desktop window shrink to exclude the taskbar? 343
Why does the caret stop blinking when I tap the Alt key? 343
What is the deal with the ES_OEMCONVERT flag? 345
The story behind file system tunneling 346
Why do NTFS and Explorer disagree on filename sorting? 347
The Date/Time Control Panel is not a calendar 350
How did Windows 95 rebase DLLs? 351
What are SYSTEM_FONT and DEFAULT_GUI_FONT? 353
Why do up-down controls have the arrows backward? 354
A ticket to the Windows 95 launch 355
Chapter Fifteen: How Window Messages Are Delivered and RetrievedSent and posted messages 358
The life of a sent message 363
The life of a posted message 364
Generated posted messages 365
When does SendMessageCallback call you back? 368
What happens in SendMessageTimeout when a message times out? 369
Applying what you've learned to some message processing myths 370
How can you tell who sent or posted you a message? 371
You can't simulate keyboard input with PostMessage 371
Chapter Sixteen: International ProgrammingCase mapping on Unicode is hard 373
An anecdote about improper case mapping 374
Why you can't rotate text 375
What are these directories called 0409 and 1033? 379
Keep your eye on the code page 379
Why is the default 8-bit codepage called "ANSI"? 388
Why is the default console codepage called "OEM"? 388
Why is the OEM code page often called ANSI? 389
Logical but perhaps surprising consequences of converting between Unicode and ANSI 391
Chapter Seventeen: SecurityWorld-writable files 393
Hiding files from Explorer 394
Stealing passwords 395
Silent install of uncertified drivers 396
Your debugging code can be a security hole 397
Why shared sections are a security hole 398
Internet Explorer's Enhanced Security Configuration doesn't trust the intranet 402
Chapter Eighteen: Windows 2000 and Windows XPWhy doesn't the new Start menu use Intellimenus in the All Programs list? 403
Why is there no programmatic access to the Start menu pin list? 404
Why does Windows XP Service Pack 2 sometimes forget my CD autoplay settings? 406
The unsafe device removal dialog 407
Two brief reminiscences on the Windows XP Comments? button 408
Why does Explorer eject the CD after you finish burning it? 408
Why does Windows setup lay down a new boot sector? 409
Psychic debugging: Why your expensive four-processor machine is ignoring three of its processors 410
Psychic debugging: Why your CPU usage is hovering at 50% 411
What's the deal with the DS_SHELLFONT flag? 412
Why does DS_SHELLFONT = DS_FIXEDSYS | DS_SETFONT? 413
What other effects does DS_SHELLFONT have on property sheet pages? 414
Chapter Nineteen: Win32 Design IssuesWhy does Win32 fail a module load if an import could not be resolved? 417
Why are structure sizes checked strictly? 418
Why do I have to return this goofy value for WM_DEVICECHANGE? 421
The arms race between programs and users 422
Why can't you trap TerminateProcess? 424
Why do some processes stay in Task Manager after they've been killed? 424
Understanding the consequences of WAIT_ABANDONED 425
Why can't I put hyperlinks in notification icon balloon tips? 427
Why can't I use the same tree item multiple times? 429
The kooky STRRET structure 429
Why can't you set UTF-8 as your ANSI code page? 431
When should you use a sunken client area? 432
Why is there no all-encompassing superset version of Windows? 433
Why is it even possible to disable the desktop, anyway? 433
What are the window and menu nesting limits? 435
What's the difference between HWND_TOP and HWND_TOPMOST? 435
Chapter Twenty: TaxesHierarchical Storage Management 438
Geopolitics 439
Remote Desktop Connection and Painting 440
Fast User Switching and Terminal Services 443
Multiple users 444 Roaming user profiles 445
Redirected folders 447
My Documents vs. Application Data 450
Large address spaces 451
Power management and detecting battery power 455
Intermittent network connectivity 457
Anti-aliased fonts and ClearType 459
High DPI displays 462
Multiple monitors 467
The work area 470
Displaying your pop-up windows in the right place 471
Accessibility 472
Chapter Twenty-One: SillinessThe much-misunderstood "nop" action 481
Don't let Marketing mess with your slides 482
Whimsical bug reports 482
Watch out for those sample URLs 483
No code is an island 484
But I have Visual Basic Professional 485
It's all about the translucent plastic 485
My first death threat 486
You can't escape those AOL CDs 487
Giving fair warning before plugging in your computer 487
Spider Solitaire unseats the reigning champion 488
There's something about Rat Poker 489
Be careful what you name your product group 490
The psychology of naming your internal distribution lists 490
Differences between managers and programmers 491
Using floppy disks as semaphore tokens 492
When a token changes its meaning midstream 492
Whimsical embarrassment as a gentle form of reprimand 493
Using a physical object as a reminder 494
The office disco party 495
The Halloween-themed lobby 495
Index 497
Notă biografică
Raymond Chen writes The Old New Thing, one of today's most influential technology blogs. A programmer at Microsoft Corporation, Chen has been involved in the evolution of Windows for more than a decade. He also writes TechNet Magazine's Windows Confidential column and has been known to make appearances at technology events.
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""Raymond Chen is the original raconteur of Windows.""
--Scott Hanselman, ComputerZen.com
""Raymond has been at Microsoft for many years and has seen many nuances of Windows that others could only ever hope to get a glimpse of. With this book, Raymond shares his knowledge, experience, and anecdotal stories, allowing all of us to get a better understanding of the operating system that affects millions of people every day. This book has something for everyone, is a casual read, and I highly recommend it!""
--Jeffrey Richter, Author/Consultant, Cofounder of Wintellect
""Very interesting read. Raymond tells the inside story of why Windows is the way it is.""
--Eric Gunnerson, Program Manager, Microsoft Corporation
""Absolutely essential reading for understanding the history of Windows, its intricacies and quirks, and why they came about.""
--Matt Pietrek, "MSDN Magazine"'s Under the Hood Columnist
""Raymond Chen has become something of a legend in the software industry, and in this book you'll discover why. From his high-level reminiscences on the design of the Windows Start button to his low-level discussions of GlobalAlloc that only your inner-geek could love, "The Old New Thing" is a captivating collection of anecdotes that will help you to truly appreciate the difficulty inherent in designing and writing quality software.""
--Stephen Toub, Technical Editor, "MSDN Magazine"
"Why does Windows work the way it does? "Why is Shut Down on the Start menu? (And why is there a Start button, anyway?) How can I tap into the dialog loop? Why does the GetWindowText function behave so strangely? Why are registry files called "hives"?
Many of Windows' quirks have perfectly logical explanations, rooted in history. Understand them, and you'll be more productive and a lot less frustrated. Raymond Chen--who's spent more than a decade on Microsoft's Windows development team--reveals the "hidden Windows" you need to know.
Chen's engaging style, deep insight, and thoughtful humor have made him one of the world's premier technology bloggers. Here he brings together behind-the-scenes explanations, invaluable technical advice, and illuminating anecdotes that bring Windows to life--and help you make the most of it.
A few of the things you'll find inside: What vending machines can teach you about effective user interfaces A deeper understanding of window and dialog management Why performance optimization can be so counterintuitive A peek at the underbelly of COM objects and the Visual C++ compiler Key details about backwards compatibility--what Windows does and why Windows program security holes most developers don't know about How to make your program a better Windows citizen