Question

Backgound步骤

此处使用的Mozilla代码：http://mxr.mozilla.org/seamonkey/source/modules/plugin/tools/sdk/samples/basic/windows/
Visual Studio中的新空项目＆amp;添加上述文件
更改了配置类型：动态库（.dll） 3B。链接器 - ＆gt;输入 - ＆gt;模块定义文件：BasicPlugin.def
评论说BasicPlugin.cpp，只有基本功能，并显示一个MessageBox for Hello World
编译（成功）＆amp;复制到Firefox插件目录
检查：插件（找到）
加载HTML以调用dll（失败）

我正在尝试使用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础。有没有人有这方面的想法？

BasicPlugin.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 的

<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>

Answer 1

如果你试图在Windows上运行它，那么它将无法工作;你有错误的Windows入口点。你列出的是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;也在http://npapi.com/tutorial

中解释过

修改

假设可能还有很多其他的东西;没有看到你的整个项目，很难推测。它出现在about：plugins中，所以你的字符串资源就位了。您是否正确使用.def文件导出符号？ DllMain会被叫到吗？（不要在那里使用消息框，只记录一些东西或设置断点）

同样，FireBreath（除了是一种更容易创建NPAPI插件的方式之外）创建一个功能齐全的npapi插件的示例;你可以从中看到很多东西。如果没有这些工作，我无法在没有看到整个项目的情况下开始推测;也许作为github项目或什么？

基本插件（NPAPI / npruntime）Hello world

1 个答案: