2

背景步骤

  1. 从这里使用 Mozilla 代码：http: //mxr.mozilla.org/seamonkey/source/modules/plugin/tools/sdk/samples/basic/windows/
  2. 在 Visual Studio 中新建空项目并添加上述文件
  3. 更改的配置类型：动态库 (.dll) 3b。链接器->输入->模块定义文件：BasicPlugin.def
  4. 注释 BasicPlugin.cpp，仅具有基本功能并为 Hello World 显示 MessageBox
  5. 编译（成功）并复制到 Firefox Plugins 目录
  6. 检查：插件（找到）
  7. 加载 HTML 调用 dll（失败）

我现在正在尝试使用 npruntime 文件并制作一个可编写脚本的插件（不确定如何）。但我不明白为什么插件没有加载。这似乎是所有基本的基本。有人对此有想法吗？

基本插件.cpp

#include "BasicPlugin.h"

NPError NP_Initialize(NPNetscapeFuncs* bFuncs, NPPluginFuncs* pFuncs)
{
MessageBox(NULL,"Hello World","NP_Initialize",MB_OK);

  // Check the size of the provided structure based on the offset of the last member we need.
  pFuncs->newp = NPP_New;
  pFuncs->destroy = NPP_Destroy;
  pFuncs->setwindow = NPP_SetWindow;
  pFuncs->newstream = NPP_NewStream;
  pFuncs->destroystream = NPP_DestroyStream;
  pFuncs->asfile = NPP_StreamAsFile;
  pFuncs->writeready = NPP_WriteReady;
  pFuncs->write = NPP_Write;
  pFuncs->print = NPP_Print;
  pFuncs->event = NPP_HandleEvent;
  pFuncs->urlnotify = NPP_URLNotify;
  pFuncs->getvalue = NPP_GetValue;
  pFuncs->setvalue = NPP_SetValue;

  return NPERR_NO_ERROR;
}

//NP_EXPORT(char*) NP_GetPluginVersion()
//{return PLUGIN_VERSION;}

//NP_EXPORT(const char*) NP_GetMIMEDescription()
//{return "application/basic-plugin:bsc:Basic plugin";}

NPError NP_GetValue(void* future, NPPVariable aVariable, void* aValue) 
{return NPERR_NO_ERROR;}

NPError OSCALL  NP_Shutdown()
{return NPERR_NO_ERROR;}

NPError NPP_New(NPMIMEType pluginType, NPP instance, uint16_t mode, int16_t argc, char* argn[], char* argv[], NPSavedData* saved) 
{
MessageBox(NULL,"Hello World","NPP_New",MB_OK);
return NPERR_NO_ERROR;
}

NPError NPP_Destroy(NPP instance, NPSavedData** save) 
{return NPERR_NO_ERROR;}

NPError NPP_SetWindow(NPP instance, NPWindow* window) 
{
MessageBox(NULL,"Hello World","NPP_SetWindow",MB_OK);
return NPERR_NO_ERROR;
}

NPError NPP_NewStream(NPP instance, NPMIMEType type, NPStream* stream, NPBool seekable, uint16_t* stype) 
{return NPERR_GENERIC_ERROR;}

NPError NPP_DestroyStream(NPP instance, NPStream* stream, NPReason reason) 
{return NPERR_GENERIC_ERROR;}

int32_t NPP_WriteReady(NPP instance, NPStream* stream) 
{return 0;}

int32_t NPP_Write(NPP instance, NPStream* stream, int32_t offset, int32_t len, void* buffer) 
{return 0;}

void NPP_StreamAsFile(NPP instance, NPStream* stream, const char* fname) {}

void NPP_Print(NPP instance, NPPrint* platformPrint)  {}
int16_t NPP_HandleEvent(NPP instance, void* event) 
{return 1;}

void NPP_URLNotify(NPP instance, const char* URL, NPReason reason, void* notifyData)  {}

NPError NPP_GetValue(NPP instance, NPPVariable variable, void *value) 
{return NPERR_GENERIC_ERROR;}

NPError NPP_SetValue(NPP instance, NPNVariable variable, void *value) 
{return NPERR_GENERIC_ERROR;}

HTML

<html>
 <body>
  <center><h1>Basic Plugin Example for Mozilla Test Case</h1></center>
  This test case is to demonstrate the Basic Plugin example. You should get a message box saying Hello World.
  <br><br>
  <center><embed type="application/basic-plugin" border=1 width=600 height=40></center>
 </body>
</html>
4

1 回答 1

3

如果您尝试在 Windows 上运行它，那么它将无法工作；你有错误的 Windows 入口点。您列出的那些是 linux 的入口点。有关 FireBreath 的 windows 入口点文件，请参阅https://github.com/firebreath/FireBreath/blob/master/src/PluginAuto/Win/np_winmain.cpp；在http://npapi.com/tutorial中也有解释

编辑

假设还有很多其他的东西；没有看到你的整个项目很难推测。它显示在 about:plugins 中，因此您的字符串资源已经到位。您是否使用 .def 文件正确导出符号？DllMain 是否被调用？（不要在那里使用消息框，只需记录一些内容或设置断点）

同样，FireBreath 是（除了作为创建 NPAPI 插件的更简单方法之外）创建功能齐全的 npapi 插件的示例；你可能会从中学到很多东西。如果没有看到你的整个项目，我就无法开始推测。也许作为一个 github 项目或什么？

于 2011-12-14T16:54:54.117 回答