我在网上找到这些资料,但不怎么样使用.
//main.c 文件 #include
#include
#include #include "getmsg.h" HINSTANCE hInstance; BOOL WINAPI DllMain(HANDLE hModule, DWORD, LPVOID);
LRESULT CALLBACK MyGetMsgProc(INT hc, WPARAM wParam, LPARAM lParam);
LRESULT CALLBACK MyCallWndProc(INT hc, WPARAM wParam, LPARAM lParam); BOOL HookInstalled = 0 ; // State Table of my hooks HHOOK hhookMsg =NULL, hhookWnd =NULL; __declspec( dllexport ) HWND g_hWnd =NULL;
__declspec( dllexport ) UINT g_msg =0;
__declspec( dllexport ) char g_caption[256];
__declspec( dllexport ) char g_className[50]; //---------------------------------------------------------------------------
// DllMain
//---------------------------------------------------------------------------
BOOL APIENTRY DllMain(HANDLE hModule, DWORD dwReason, LPVOID lpReserved)
{
FILE *fp =NULL;
hInstance = hModule; switch(dwReason)
{
case DLL_PROCESS_ATTACH:
if((fp =fopen("c:\\share.txt", "r")) !=NULL)
{
fscanf(fp, "%d %d %s %s", &g_hWnd, &g_msg, g_className, g_caption);
fclose(fp);
}
//MessageBox(NULL, g_className, g_caption, MB_OK);
break;
case DLL_PROCESS_DETACH:
break;
default:
break;
} return TRUE;
} //---------------------------------------------------------------------------
int __stdcall InstGetMsg(BOOL fInstall, char *pclass, char *pcaption, UINT msg, HWND hWnd)
{
FILE *fp; if ( fInstall )
{
if(pclass ==NULL)
g_className[0] =0;
else strcpy(g_className, pclass);
if(pcaption ==NULL)
g_caption[0] =0;
else strcpy(g_caption, pcaption);
g_hWnd =hWnd;
g_msg =msg;
if((fp =fopen("c:\\share.txt", "w")) !=NULL)
{
fprintf(fp, "%d %d %s %s", g_hWnd, g_msg, g_className, g_caption);
fclose(fp);
}
if(HookInstalled) return FALSE;
hhookWnd = SetWindowsHookEx(WH_CALLWNDPROC, MyCallWndProc,
hInstance, 0);
hhookMsg = SetWindowsHookEx(WH_GETMESSAGE, MyGetMsgProc,
hInstance, 0);
HookInstalled = TRUE;
}
else
{
if(!HookInstalled) return FALSE;
UnhookWindowsHookEx(hhookMsg);
UnhookWindowsHookEx(hhookWnd);
HookInstalled = FALSE;
}
return TRUE;
} LRESULT CALLBACK MyGetMsgProc(INT hc, WPARAM wParam, LPARAM lParam)
{
PMSG pmsg;
HWND hwnd;
char *pclass =NULL, *pcaption =NULL; pmsg = (PMSG)lParam;
//用delphi 怎么样写??
if (hc >= 0 && pmsg && pmsg->hwnd)
{
if(pmsg->message ==g_msg)
{
if(g_className[0] !=0) pclass =g_className;
if(g_caption[0] !=0) pcaption =g_caption; hwnd =FindWindow(pclass, pcaption);
if(g_hWnd && pmsg->hwnd ==hwnd)
{
PostMessage(g_hWnd, pmsg->message, pmsg->wParam, pmsg->lParam);
//return 0;
}
}
} return CallNextHookEx(NULL, hc, wParam, lParam);
} LRESULT CALLBACK MyCallWndProc(INT hc, WPARAM wParam, LPARAM lParam)
{
PCWPSTRUCT pcwps;
HWND hwnd;
char *pclass =NULL, *pcaption =NULL; pcwps = (PCWPSTRUCT)lParam; if (hc >= 0 && pcwps && pcwps->hwnd)
{
if(pcwps->message ==g_msg)
{
if(g_className[0] !=0) pclass =g_className;
if(g_caption[0] !=0) pcaption =g_caption; hwnd =FindWindow(pclass, pcaption);
if(hwnd)
MessageBeep(0);
if(pcwps->hwnd ==hwnd)
{
SendMessage(g_hWnd, pcwps->message, pcwps->wParam, pcwps->lParam);
//return 0;
}
}
} return CallNextHookEx(NULL, hc, wParam, lParam);
} //getmsg.h 文件 /* InstGetMsg: 安装截取某个窗口的某个消息
* fInstall: TRUE-安装，FALSE-撤消安装
* hWnd: 接收消息的窗口，即截取到某个窗口的消息后再转发到hWnd窗口
* msg: 要截取哪个消息
* pclass: 要截取的窗口类型
* pcaption: 要截取的窗口标题，和className必须其中一个不为0
*/ int __stdcall InstGetMsg(BOOL fInstall, char *pclass, char *pcaption, UINT msg, HWND hWnd);
DT520 @>>>-->>---------一路风尘一路歌!!
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