Wine, WineLib and "Programming Windows 95"

2.12.1. Chapter 14 - bigjob1

Last updated: 2001/2/4

Description

Demonstrates the use of a background thread to perform long calculations. A left-click starts the background thread and a right-click stops it.

Wine tests

• Works just fine.

Winelib tests

• Same as with Wine.

Tested API

• GDI32
  GetStockObject
• KERNEL32
  CloseHandle, CreateThread, DeleteCriticalSection, EnterCriticalSection, ExitProcess, ExitThread, FlushFileBuffers, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetACP, GetCPInfo, GetCommandLineA, GetCurrentThreadId, GetEnvironmentStrings, GetEnvironmentStringsW, GetFileType, GetLastError, GetModuleFileNameA, GetModuleHandleA, GetOEMCP, GetProcAddress, GetStartupInfoA, GetStdHandle, GetStringTypeA, GetStringTypeW, GetTickCount, GetVersion, HeapAlloc, HeapCreate, HeapFree, InitializeCriticalSection, LCMapStringA, LCMapStringW, LeaveCriticalSection, LoadLibraryA, MultiByteToWideChar, RaiseException, ResumeThread, RtlUnwind, SetFilePointer, SetHandleCount, SetLastError, SetStdHandle, TlsAlloc, TlsGetValue, TlsSetValue, UnhandledExceptionFilter, WideCharToMultiByte, WriteFile
• USER32
  BeginPaint, CreateWindowExA, DefWindowProcA, DispatchMessageA, DrawTextA, EndPaint, GetClientRect, GetMessageA, InvalidateRect, LoadCursorA, LoadIconA, MessageBeep, PostQuitMessage, RegisterClassExA, SendMessageA, ShowWindow, TranslateMessage, UpdateWindow, wsprintfA

2.12.2. Chapter 14 - bigjob2

Last updated: 2003/5/4

Description

Same as bigjob1 but instead of communicating with the background thread via a shared boolean variable, bigjob2 uses an Event object.

Wine tests

• Works just like on Windows.

Winelib tests

• Same as with Wine.

Tested API

• GDI32
  GetStockObject
• KERNEL32
  CloseHandle, CreateEventA, CreateThread, DeleteCriticalSection, EnterCriticalSection, ExitProcess, ExitThread, FlushFileBuffers, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetACP, GetCPInfo, GetCommandLineA, GetCurrentThreadId, GetEnvironmentStrings, GetEnvironmentStringsW, GetFileType, GetLastError, GetModuleFileNameA, GetModuleHandleA, GetOEMCP, GetProcAddress, GetStartupInfoA, GetStdHandle, GetStringTypeA, GetStringTypeW, GetTickCount, GetVersion, HeapAlloc, HeapCreate, HeapFree, InitializeCriticalSection, LCMapStringA, LCMapStringW, LeaveCriticalSection, LoadLibraryA, MultiByteToWideChar, RaiseException, ResumeThread, RtlUnwind, SetEvent, SetFilePointer, SetHandleCount, SetLastError, SetStdHandle, TlsAlloc, TlsGetValue, TlsSetValue, UnhandledExceptionFilter, WaitForSingleObject, WideCharToMultiByte, WriteFile
• USER32
  BeginPaint, CreateWindowExA, DefWindowProcA, DispatchMessageA, DrawTextA, EndPaint, GetClientRect, GetMessageA, InvalidateRect, LoadCursorA, LoadIconA, MessageBeep, PostQuitMessage, RegisterClassExA, SendMessageA, ShowWindow, TranslateMessage, UpdateWindow, wsprintfA

2.12.3. Chapter 14 - multi1

Last updated: 2001/2/4

Description

Simulates multi-threading by using a timer. Creates a window which is divided into four parts. From top left to bottom right, these contain: an increasing series of numbers, the list of prime numbers, the fibonacci series (which they quickly wrap to zero), and circle of a random radius.

Wine tests

• Works too slowly. I don't think it's because the implementation is inefficient because the program's CPU use is almost 0 and its clocked by the timer anyway. So I think there is a problem with the rate of the timer events.

Winelib tests

• Same as with Wine.

Tested API

• GDI32
  Ellipse, GetStockObject, TextOutA
• KERNEL32
  CloseHandle, ExitProcess, FlushFileBuffers, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetACP, GetCPInfo, GetCommandLineA, GetEnvironmentStrings, GetEnvironmentStringsW, GetFileType, GetLastError, GetModuleFileNameA, GetModuleHandleA, GetOEMCP, GetProcAddress, GetStartupInfoA, GetStdHandle, GetStringTypeA, GetStringTypeW, GetVersion, HeapAlloc, HeapCreate, HeapFree, LCMapStringA, LCMapStringW, LoadLibraryA, MultiByteToWideChar, RaiseException, RtlUnwind, SetFilePointer, SetHandleCount, SetStdHandle, UnhandledExceptionFilter, WideCharToMultiByte, WriteFile
• USER32
  CreateWindowExA, DefWindowProcA, DestroyWindow, DispatchMessageA, GetDC, GetDialogBaseUnits, GetMessageA, GetWindowLongA, InvalidateRect, KillTimer, LoadCursorA, LoadIconA, MoveWindow, PostQuitMessage, RegisterClassExA, ReleaseDC, SendMessageA, SetTimer, ShowWindow, TranslateMessage, UpdateWindow, wsprintfA

2.12.4. Chapter 14 - multi2

Last updated: 2003/5/4

Description

Same as multi1 but based on threads. Note that when you move the window the processing continues, eventhough the display may no longer be updated. That's because moving the window only suspends the first thread, the one with the message loop - the one which was doing all the work in multi1, and not the other threads.

Wine tests

• Execution although fast is too slow. I started it on a Pentium II 333 and then on a Pentium 133 and the Pentium managed to catch up with the Pentium II relatively quickly. This means that there is something very inefficient somewhere. This would probably be either the font rendering or the circle drawing. Hopefully it's not the X server.
• When I close the application I will sometimes (1/5?) get an error:

  fixme:dc:GetDCEx not supported yet on other process window 0x70022
  

  I think this is because there is absolutely no synchronization between the main thread, the one which decides when to close the application, and the three others. So what can happen is that the main thread closes the Window and then one of the other threads gets a context for it (which fails) and uses it (without checking). But Charles Petzold continues by saying that this is normally not an issue in Windows 95 because it just means the GDI call will fail and there will not be nasty side effects. He also mentions a few potential exceptions like creating/deleting objects like brushes. So it seems here that Wine will not fail as gracefully when given an incorrect parameter.

Winelib tests

• Same as with Wine.

Tested API

• GDI32
  Ellipse, GetStockObject, TextOutA
• KERNEL32
  CloseHandle, CreateThread, DeleteCriticalSection, EnterCriticalSection, ExitProcess, ExitThread, FlushFileBuffers, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetACP, GetCPInfo, GetCommandLineA, GetCurrentThreadId, GetEnvironmentStrings, GetEnvironmentStringsW, GetFileType, GetLastError, GetModuleFileNameA, GetModuleHandleA, GetOEMCP, GetProcAddress, GetStartupInfoA, GetStdHandle, GetStringTypeA, GetStringTypeW, GetVersion, HeapAlloc, HeapCreate, HeapFree, InitializeCriticalSection, LCMapStringA, LCMapStringW, LeaveCriticalSection, LoadLibraryA, MultiByteToWideChar, RaiseException, ResumeThread, RtlUnwind, SetFilePointer, SetHandleCount, SetLastError, SetStdHandle, TlsAlloc, TlsGetValue, TlsSetValue, UnhandledExceptionFilter, WideCharToMultiByte, WriteFile
• USER32
  CreateWindowExA, DefWindowProcA, DestroyWindow, DispatchMessageA, GetDC, GetDialogBaseUnits, GetMessageA, GetWindowLongA, InvalidateRect, LoadCursorA, LoadIconA, MoveWindow, PostQuitMessage, RegisterClassExA, ReleaseDC, ShowWindow, TranslateMessage, UpdateWindow, wsprintfA

2.12.5. Chapter 14 - rndrctmt

Last updated: 2003/5/4

Description

Same as the randrect example in chapter 4 (displays random rectangles in a window) but with a separate thread to handle drawing the rectangles.

Wine tests

• I get the following message when I close the application. This is probably the same problem that happens with multi2.

  fixme:dc:GetDCEx not supported yet on other process window 0xb0021
  

Winelib tests

• Same as with Wine.

Tested API

• GDI32
  CreateSolidBrush, DeleteObject, GetStockObject, Rectangle, SelectObject
• KERNEL32
  CloseHandle, CreateThread, DeleteCriticalSection, EnterCriticalSection, ExitProcess, ExitThread, FlushFileBuffers, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetACP, GetCPInfo, GetCommandLineA, GetCurrentThreadId, GetEnvironmentStrings, GetEnvironmentStringsW, GetFileType, GetLastError, GetModuleFileNameA, GetModuleHandleA, GetOEMCP, GetProcAddress, GetStartupInfoA, GetStdHandle, GetVersion, HeapAlloc, HeapCreate, HeapFree, InitializeCriticalSection, LeaveCriticalSection, LoadLibraryA, ResumeThread, RtlUnwind, SetFilePointer, SetHandleCount, SetLastError, SetStdHandle, TlsAlloc, TlsGetValue, TlsSetValue, UnhandledExceptionFilter, WideCharToMultiByte, WriteFile
• USER32
  CreateWindowExA, DefWindowProcA, DispatchMessageA, GetDC, GetMessageA, LoadCursorA, LoadIconA, PostQuitMessage, RegisterClassExA, ReleaseDC, ShowWindow, TranslateMessage, UpdateWindow

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