如何用 Win32 SDK 编程创建 Tri-pane HTML Help 窗口
2006-07-19 11:34:25 来源:WEB开发网核心提示: Sample Code /// // Create an HH_WINTYPE structure. { HH_WINTYPE m_hhWinType; // Initialize all structure members to zero. ZeroMemory(&m_hhWinType
Sample Code
///////////////////////////////////////////
// Create an HH_WINTYPE structure.
{
HH_WINTYPE m_hhWinType;
// Initialize all structure members to zero.
ZeroMemory(&m_hhWinType, sizeof(HH_WINTYPE));
// Define a custom message for use with idNotify.
// You are responsible for ensuring that this ID
// does not conflict with other Windows/MFC messages.
#define IDD_HELPTAB 69999
// Set the size of the structure.
m_hhWinType.cbStruct = sizeof(HH_WINTYPE);
// Set up the properties of the HTML window:
// tripane window, sync topic with index/TOC, and so forth.
// NOTE: fsValidMembers - HHWIN_PARAM_PROPERTIES must be set.
m_hhWinType.fsWinProperties = HHWIN_PROP_TRI_PANE |
HHWIN_PROP_AUTO_SYNC;
// Put BACK, HOME, FORWARD, and EXPAND buttons on toolbar pane.
// NOTE: fsValidMembers - HHWIN_PARAM_TB_FLAGS must be set.
m_hhWinType.fsToolBarFlags = HHWIN_BUTTON_BACK |
HHWIN_BUTTON_HOME | HHWIN_BUTTON_FORWARD |
HHWIN_BUTTON_EXPAND;
// The file is in the right pane. The full path is not needed.
m_hhWinType.pszFile = "intro.htm";
// Full Paths or CHM locations of various files (if used).
// To specify that a file is within a CHM, use the following
// syntax: "CHMFileName.chm::\\FileName.xxx"
// Home Page:
m_hhWinType.pszHome = "c:\\mypath\\intro.htm";
// Table of Contents:
m_hhWinType.pszToc = "c:\\mypath\\contents.hhc";
// Index:
m_hhWinType.pszIndex = "c:\\mypath\\index.hhk";
// Expansion width of navigation pane (left pane):
// NOTE: fsValidMembers - HHWIN_PARAM_NAV_WIDTH must be set.
m_hhWinType.iNavWidth = 175;
// Initial display state:
// NOTE: fsValidMembers - HHWIN_PARAM_SHOWSTATE must be set.
m_hhWinType.nShowState = SW_RESTORE;
// TOC should be activated.
// NOTE: fsValidMembers - HHWIN PARAM_CUR_TAB must be set.
m_hhWinType.curNavType = HHWIN_NAVTYPE_TOC;
// Tabs on top.
// NOTE: fsValidMembers - HHWIN_PARAM_TABPOS must be set.
m_hhWinType.tabpos = HHWIN_NAVTAB_TOP;
// ID to use in WPARAM in WM_NOTIFY:
m_hhWinType.idNotify = IDD_HELPTAB;
// Title of Help Window:
m_hhWinType.pszCaption= "My Title";
// Indicate which fields in structure are valid.
m_hhWinType.fsValidMembers = HHWIN_PARAM_STYLES |
HHWIN_PARAM_PROPERTIES | HHWIN_PARAM_RECT |
HHWIN_PARAM_TB_FLAGS | HHWIN_PARAM_NAV_WIDTH |
HHWIN_PARAM_SHOWSTATE | HHWIN_PARAM_TABPOS |
HHWIN_PARAM_CUR_TAB;
// Specify the name of the window definition.
m_hhWinType.pszType = "MyWindowName";
// This call creates the new type from the values in
// the HH_WINTYPE structure. This example assumes that
// a valid CHM file, "sample.chm", exists.
HtmlHelp(m_hWnd, "c:\\mypath\\sample.chm",
HH_SET_WIN_TYPE, (DWORD) &m_hhWinType);
}
// Display the default topic in the window that was defined above
// MFC''s CFrameWnd::OnHelp message handler.
void CMainFrame::OnHelp()
{
HtmlHelp(m_hWnd, "sample.chm>MyWindowName",
HH_DISPLAY_TOPIC,0);
}
最后,我想在强调几点在 Visual C++ 工程中使用 HTML Help API 应注意的事项:
- 一、在调用 HTML Help API 的.cpp源文件中包含“Htmlhelp.h”。安装HTML Help Workshop后,文件“Htmlhelp.h”被存放在 “HTML Help Workshop”目录下的 Include 子目录中。
- 二、在 VC 工程中加入Htmlhelp.lib文件,以便保证编译器 link 时 API 成功输出。安装HTML Help Workshop后,文件“Htmlhelp.lib”被存放在 “HTML Help Workshop”目录的 lib 子目录中。
- 三、当 Building VC 工程时, 可能产生以下警告信息(如何使用 Hhctrl.lib 库文件,则不存在此问题。):
......default lib LIBCMT conflicts with use of other libs; use /NODEFAULTLIB:library.
如果是这样的话,可以对VC的编译环境进行设置,方法是:在“Project”菜单中,选择 “Settings”->“Link标签”->“Category 下拉列表”->选“Input”;然后在“Ignore Libraries”编辑框输入“ LIBCMT”,这样就屏蔽(Disable)掉缺省的库搜索 (default library search),所以,如果使用了缺省库,就必须显式列出。
经过以上的步骤 Visual C++ 工程应该能成功调用 HTML Help API。
由于时间关系,本文没有附带的范例程序,如果哪位读者有兴趣的话,可以做一个,届时请一定不要忘了共享一份源代码,用以填补本文的不足。我定会重谢!
有关HTML Help的更详细的信息,请访问 HTML Help 在线帮助站点:
http://msdn.microsoft.com/workshop/Author/htmlhelp/
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