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MFC的Afx全局函数、其常宏、数据类型

2017-02-19 16:23 1231 查看
一、Afx全局函数


  AfxBeginThread:开始一个新的线程

  AfxEndThread:结束一个旧的线程

  AfxFormatString1:类似printf一般地将字符串格式化

  AfxFormatString2:类似printf一般地将字符串格式化

  AfxMessageBox:类似Windows API 函数 MessageBox

  AfxOuputDebugString:将字符串输往除错装置

  AfxGetApp:获得application object (CWinApp派生对象)的指针

  AfxGetMainWnd:获得程序主窗口的指针

  AfxGetInstance:获得程序的instance handle

// global helpers for threads

CWinThread* AFXAPI AfxBeginThread(AFX_THREADPROC pfnThreadProc, LPVOID pParam,
int nPriority = THREAD_PRIORITY_NORMAL, UINT nStackSize = 0,
DWORD dwCreateFlags = 0, LPSECURITY_ATTRIBUTES lpSecurityAttrs = NULL);
CWinThread* AFXAPI AfxBeginThread(CRuntimeClass* pThreadClass,
int nPriority = THREAD_PRIORITY_NORMAL, UINT nStackSize = 0,
DWORD dwCreateFlags = 0, LPSECURITY_ATTRIBUTES lpSecurityAttrs = NULL);

CWinThread* AFXAPI AfxGetThread();
MSG* AFXAPI AfxGetCurrentMessage();

void AFXAPI AfxEndThread(UINT nExitCode, BOOL bDelete = TRUE);

void AFXAPI AfxInitThread();
void AFXAPI AfxTermThread(HINSTANCE hInstTerm = NULL);

/*============================================================================*/
// Global functions for access to the one and only CWinApp

#define afxCurrentWinApp    AfxGetModuleState()->m_pCurrentWinApp
#define afxCurrentInstanceHandle    AfxGetModuleState()->m_hCurrentInstanceHandle
#define afxCurrentResourceHandle    AfxGetModuleState()->m_hCurrentResourceHandle
#define afxCurrentAppName   AfxGetModuleState()->m_lpszCurrentAppName
#define afxContextIsDLL     AfxGetModuleState()->m_bDLL
#define afxRegisteredClasses    AfxGetModuleState()->m_fRegisteredClasses

#define afxOccManager   AfxGetModuleState()->m_pOccManager

// Advanced initialization: for overriding default WinMain
BOOL AFXAPI AfxWinInit(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance,
_In_z_ LPTSTR lpCmdLine, _In_ int nCmdShow);
void AFXAPI AfxWinTerm();

// Global Windows state data helper functions (inlines)
#ifdef _AFXDLL
ULONG AFXAPI AfxGetDllVersion();
#endif

CWinApp* AFXAPI AfxGetApp();
CWnd* AFXAPI AfxGetMainWnd();
HINSTANCE AFXAPI AfxGetInstanceHandle();
HINSTANCE AFXAPI AfxGetResourceHandle();
void AFXAPI AfxSetResourceHandle(HINSTANCE hInstResource);
LPCTSTR AFXAPI AfxGetAppName();
AFX_DEPRECATED("AfxLoadLangResourceDLL(LPCTSTR pszFormat) has been deprecated, use AfxLoadLangResourceDLL(LPCTSTR pszFormat, LPCTSTR pszPath) instead")
HINSTANCE AFXAPI AfxLoadLangResourceDLL(LPCTSTR pszFormat);
HINSTANCE AFXAPI AfxLoadLangResourceDLL(LPCTSTR pszFormat, LPCTSTR pszPath);

// Use instead of PostQuitMessage in OLE server applications
void AFXAPI AfxPostQuitMessage(int nExitCode);

// Use AfxFindResourceHandle to find resource in chain of extension DLLs
#ifndef _AFXDLL
#define AfxFindResourceHandle(lpszResource, lpszType) AfxGetResourceHandle()
#else
HINSTANCE AFXAPI AfxFindResourceHandle(LPCTSTR lpszName, LPCTSTR lpszType);
#endif

/// <summary>
/// Deletes the subkeys and values of the specified key recursively.</summary>
/// <returns>
/// If the function succeeds, the return value is ERROR_SUCCESS. If the function fails, the return value is a nonzero error code defined in Winerror.h</returns>
/// <param name="hKey">A handle to an open registry key.</param>
/// <param name="lpSubKey">The name of the key to be deleted.</param>
/// <param name="pTM">Pointer to CAtlTransactionManager object</param>
LONG AFXAPI AfxDelRegTreeHelper(HKEY hParentKey, const CString& strKeyName, CAtlTransactionManager* pTM = NULL);

class CRecentFileList;          // forward reference (see afxadv.h)
class CDataRecoveryHandler;     // forward reference (see afxdatarecovery.h)

// access to message filter in CWinApp
COleMessageFilter* AFXAPI AfxOleGetMessageFilter();

/*============================================================================*/
// CCommandLineInfo

二. MFC提供的主要宏:

       消息映射宏: 声明消息映射表 (将于3.2.2节介绍)宏DECLARE_MESSAGE_MAP、定义消息映射表宏BEGIN_MESSAGE_MAP和END_MESSAGE_MAP对、消息映射表入口宏ON_加消息名。

      动态 MFC对象宏: DECLARE_DYNCREATE和DECLARE_DYNAMIC, IMPLEMENT_DYNCREATE和MPLEMENT_DYNAMIC 

     运行时类宏: RUNTIME_CLASS 

     序列化宏: DECLARE_SERIAL和IMPLEMENT_SERIAL 

     诊断服务宏: ASSERT、VERIFY 

     跟踪服务宏: TRACE 

     异常处理宏: THROW 

三、MFC数据类型

  BOOL:布尔值,取值为TRUE or FALSE

  BSTR:32-bit 字符指针

  BYTE:8-bit整数,未带正负号

  COLORREF:32-bit数值,代表一个颜色值

  DWORD:32-bit整数,未带正负号

  LONG:32-bit整数,带正负号

  LPARAM:32-bit整数,作为窗口函数或callback函数的一个参数

  LPCSTR:32-bit指针,指向一个常数字符串

  LPSTR:32-bit指针,指向一个字符串

  LPCTSTR:32-bit指针,指向一个常数字符串,此字符串可以移植到Unicode(世界性的字符集)和DBCS(亚洲字符集)

  LPTSTR:32-bit指针,指向一个字符串,此字符串可以移植到Unicode和DBCS

  LPVOID:32-bit指针,指向一个未指定类型的数据

  LPRESULT:32-bit数值,作为窗口函数或callback函数的返回值

  UINT:在Win16中是一个16-bit 未带正负号整数,在Win32中是一个32-bit 未带正负号整数,

  WNDPROC:32-bit指针,指向一个窗口函数

  WORD:16-bit 整数 ,未带正负号

  WPARAM:窗口函数或callback函数的一个参数,在Win16中是16-bit,在Win32中是32-bit

  下面这些是MFC独特的数据类型

  POSITION:一个数值,代表collection对象(例如数组或链表)中的元素位置,常用于MFC collection classes(即数据处理类,如CArray)

  LPCRECT:32-bit指针,指向一个不变的RECT结构
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