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            Codejie's C++ Space
            

            Using C++
            
			
            
				
					
	
            
		
            
			LingosHook：Plugins under wxWidget
		
            
		

                這幾天一直在被Plugins折騰，用老辦法用wxWidget實現(xiàn)插件方式一直都失敗，主要是在DLL中創(chuàng)建的窗口無法獲得Application Instance，導致窗口彈出時，直接CORE，很是苦惱。。。后來嘗試將主窗口的Instance和Window作為參數(shù)傳給DLL中的窗口，彈出沒有問題，但當窗口關閉是，也會引起主窗口關閉，懷疑是公用消息隊列所致，又是苦惱了幾天～
                好在現(xiàn)在世界無限大，找來找去，還真發(fā)現(xiàn)早有前輩實現(xiàn)了這些，啥也不管了，COPY & PASTE 先，爸爸說的好－－“天下文人是一家”，我覺得程序員亦是如此。。。
                原帖在這，敬請移步－－http://wxforum.shadonet.com/viewtopic.php?t=13178&highlight=plugin

                雖還沒有太弄懂其原理，但大體看原帖應該也碰到了和我一樣的問題。所以其在DLL創(chuàng)建窗口前，先初始了一個App來接管或者封裝住后面的窗口。實在是高人，至少我沒有想到這樣，用到的那些函數(shù)也從沒見過，實在是高啊。。。這里我還有些糊涂，此時DLL中的窗口運行在哪個進程中？我還不想在LingosHook中引入鎖。。。

                下面是主要的，也是重要的代碼。
            

            #ifndef __EXPORTS_H__
            #define __EXPORTS_H__

            //http://wxforum.shadonet.com/viewtopic.php?t=13178&highlight=plugin

            #include             "wx/wx.h"
            #include             "wx/msw/private.h"

            #define IMPLEMENT_PLUGIN(name)                                                              \
                            extern "C" __declspec(dllexport) ActivityObject* GetActivity() { return new name; }     \
                                                                                                        \
                            class name##DLLApp : public wxApp                                                       \
                            {                                                                                       \
                }            ;                                                                                      \
                IMPLEMENT_APP_NO_MAIN(name##DLLApp)                                                     \
                                                                                                        \
                BOOL APIENTRY DllMain(HANDLE hModule, DWORD uCallReason, LPVOID pReserved)              \
                            {                                                                                       \
                                switch(uCallReason)                                                                 \
                                {                                                                                   \
                                case DLL_PROCESS_ATTACH:                                                            \
                                    {                                                                               \
                            wxSetInstance((HINSTANCE)hModule);                                          \
                                        int argc = 0; char* argv = NULL;                                            \
                            wxEntryStart(argc,             &argv);                                                  \
                                        return TRUE;                                                                \
                        }                                                                                           \
                                    break;                                                                          \
                                case DLL_THREAD_ATTACH:                                                             \
                                    break;                                                                          \
                                case DLL_THREAD_DETACH:                                                             \
                                    break;                                                                          \
                                case DLL_PROCESS_DETACH:                                                            \
                        wxEntryCleanup();                                                                \
                                    break;                                                                          \
                                default:                                                                            \
                                    return FALSE;                                                                   \
                    }            ;                                                                                  \
                                                                                                        \
                                return TRUE;                                                                        \
                }                                                                                                   \
                

            #endif
            

                上面代碼被我去掉了幾行，沒別的意思，只是感覺么什么用處，當然也可能自己道行還不夠，沒體會到其中奧秘。不過去掉了還是能正常使用，如下圖。有興趣的，請去看原帖。




            <---- 蛋疼的分割線---->

                知道啥叫‘蛋疼’不。。。為了搞定這個Plugins，特意寫了Test工程。。。搞死我了。。。
            
		
            
			posted on 2011-01-07 18:39 codejie 閱讀(1691) 評論(0)  編輯 收藏 引用  所屬分類: C++ 、LingosHook 
		
            
	
            
	
	


	


            
	    
    




            






            

				
			
            
			
            
				
					

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