测试一下在IE浏览器界面中插入代码测试，采用寻找窗口的方式获取Internet Explorer_Server句柄。
写的时候参考了很多网上的资料，有些地方不大适用就稍微修改了一下。
- SendMessageTimeout函数一直无效（看网上有一回答说
c#可以正常使用，没试过），无效情况是执行成功（非超时），但是lpRes为0，于是改用SendMessage；- 使用spyxx查找
IEFrame下的Internet Explorer_Server窗口，根据实际情况来寻找窗口，网上年代久远的部分代码只有三层；- 似乎是因为
main函数在退出时会释放程序执行过程中申请的所有资源的原因，在程序最后加上CoUninitialize()将导致win7下出现程序退出异常的情况，在win10下则不会；另一个解决办法是在CoUninitialize()后边使用ExitProcess()退出进程，但是可能有部分内存未释放；- 测试代码时，在win7及以下平台系统中
navigate2()方法无法使用，应使用navigate()，使用navigate()时BSTR类型的URL参数时使用SysAllocString初始化，虽然实际上是wchar*，但是使用常量初始化变量或者使用字符串拷贝函数wcscpy时会出错（迷）；- QueryService参数中的
SID_SWebBrowserApp替换为IID_IWebBrowserApp。
这里将js代码写入页面需要运行的话，我是使用IHTMLDocument2的write方法写回document，页面刷新执行js代码，但是页面部分样式可能丢失。除此之外，还有很多方法可以实现，比如利用事件响应等方法，而且也不一定插入js，插入iframe或者一条链接之类的无需刷新页面。
#include "windows.h"
#include "mshtml.h"
#include "stdio.h"
#include "ExDisp.h"
#include "atlbase.h"
#include "comutil.h"
#include "oleacc.h"
//#pragma comment(lib, "oleacc.lib")
//int WINAPI WinMain(HINSTANCE hins, HINSTANCE hPrev, LPSTR lpCmdLine, INT nCmdShow) {
INT main(int argc, char* argv[]){
//IWebBrowser2
HWND hWnd_pre = NULL, hWnd_child = NULL, hWnd_IES = NULL;
hWnd_pre = FindWindow("IEFrame", NULL); //IE Window Class
if (hWnd_pre == NULL) {
OutputDebugString(TEXT("IE didnot open."));
}
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("Shell DocObject View"), NULL); // test
if (hWnd_child == NULL) { // not only three Layers
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("Frame Tab"), NULL);
if (hWnd_child == NULL) {
OutputDebugString(TEXT("not Found IE Tab."));
}
hWnd_pre = hWnd_child;
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("TabWindowClass"), NULL);
hWnd_pre = hWnd_child;
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("Shell DocObject View"), NULL);
hWnd_pre = hWnd_child;
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("Internet Explorer_Server"), NULL);
}
else {
hWnd_pre = hWnd_child;
hWnd_child = FindWindowEx(hWnd_pre, 0, TEXT("Internet Explorer_Server"), NULL);
}
hWnd_IES = hWnd_child; // Get Internet Explorer_Server Window's Handle
printf("handle value of Internet Explorer_Server => %#x\n", (DWORD*)hWnd_child);
CoInitialize(0); // for using of COM interfaces
UINT nMsg = RegisterWindowMessage(TEXT("WM_HTML_GETOBJECT")); // register common msg of between two windows
if (nMsg)
printf("success registe Window message WM_HTML_GETOBJECT, msg ID => %#x\n", nMsg);
CComPtr pHtmlDoc;
LRESULT result;
//if (!SendMessageTimeout(hWnd_IES, nMsg, 0, 0, SMTO_NORMAL, 30000, (LPDWORD)result)) {
if (!(result = SendMessage(hWnd_IES, nMsg, 0, 0))) // send message for associated value of msg
printf("call sendMessageTimeout failed:( error code: %#x\n", GetLastError());
else {
printf("returned result value: %#x\n", result);
/*if (!result) {
printf("returned result id none...end");
ExitProcess(1);
}*/
HMODULE hLib = LoadLibrary("oleacc.dll");
LPFNOBJECTFROMLRESULT pFObjectFromLresult = (LPFNOBJECTFROMLRESULT)GetProcAddress(hLib, "ObjectFromLresult");
//HRESULT hRes = ObjectFromLresult(result, IID_IHTMLDocument2, 0, (void**)&pHtmlDoc);
HRESULT hRes = pFObjectFromLresult(result, IID_IHTMLDocument2, 0, (void**)&pHtmlDoc);
if (SUCCEEDED(hRes)) {
printf("get IHTMLDocument2 success :)\n");
//OLECHAR urll[] = L"http://www.baidu.com/";
CComPtr spWnd2;
CComPtr spServiceProvider;
IWebBrowser2* pWebBrow = NULL;
hRes = pHtmlDoc->get_parentWindow((IHTMLWindow2**)&spWnd2);
if (SUCCEEDED(hRes)) {
hRes = spWnd2->QueryInterface(IID_IServiceProvider, (void**)&spServiceProvider); // Query Interface
if (SUCCEEDED(hRes)) {
hRes = spServiceProvider->QueryService(IID_IWebBrowserApp, IID_IWebBrowser2, (void**)&pWebBrow); // query service
if (SUCCEEDED(hRes)) {
printf("Get IWebBrowser handlw Success :)\n");
////1-跳转测试
//VARIANT PARAM;
//VariantInit(&PARAM);
////V_VT(&PARAM) = VT_I4;
////V_I4(&PARAM) = navOpenInNewTab; //open in new tab
////hRes = pWebBrow->Navigate2(&CComVariant("http://www.baidu.com/"), 0, 0, 0, 0);// win7 and former versions not support.
//BSTR URLL = SysAllocString(L"http://www.baidu.com/");
//hRes = pWebBrow->Navigate(URLL, &PARAM, &PARAM, &PARAM, &PARAM); // navigate
//SysFreeString(URLL);
//if (SUCCEEDED(hRes)) printf("navigate success :)\n");
//else printf("navigate failed :(\n");
///*//2-获取地址栏URL测试
//hRes = pWebBrow->get_LocationURL(&URLLL);
//if(SUCCEEDED(hRes))
// printf("Get URL : %ws\n", URLL);*/
////3-write document
//SAFEARRAY* pSafeArr = SafeArrayCreateVector(VT_VARIANT, 0, 1);
//if (pSafeArr) {
// BSTR pInsertCode = SysAllocString(L"");
// VARIANT *PARAM = NULL;
// SafeArrayAccessData(pSafeArr, (void**)&PARAM);
// V_VT(PARAM) = VT_BSTR; // PARAM->vt = VT_BSTR
// V_BSTR(PARAM) = pInsertCode; // PARAM->bStrVal
// SafeArrayUnaccessData(pSafeArr);
// pHtmlDoc->write(pSafeArr); // will refresh
// pHtmlDoc->close();
// SafeArrayDestroy(pSafeArr);
// pSafeArr = NULL;
//}
//get HTML codes
BSTR pText = SysAllocString(L"");
BSTR wheer = SysAllocString(L"afterBegin"); //代码放置位置
CComPtr pHtmlElem;
pHtmlDoc->get_body(&pHtmlElem);
//pHtmlElem->get_innerHTML(&pText);
//pHtmlElem->put_innerHTML(pText);
hRes = pHtmlElem->insertAdjacentHTML(wheer, pText); // 插入
SysFreeString(pText);
SysFreeString(wheer);
pText = NULL;
wheer = NULL;
//重载页面
if (SUCCEEDED(hRes)) {
printf("insert html code SUCCESS:)\n");
/*pHtmlElem->get_outerHTML(&pText);
SAFEARRAY* pSafeArr = SafeArrayCreateVector(VT_VARIANT, 0, 1);
VARIANT *PARAM = NULL;
SafeArrayAccessData(pSafeArr, (void**)&PARAM);
V_VT(PARAM) = VT_BSTR;
V_BSTR(PARAM) = pText;
SafeArrayUnaccessData(pSafeArr);
pHtmlDoc->write(pSafeArr);
pHtmlDoc->close();
SafeArrayDestroy(pSafeArr);
pSafeArr = NULL;*/
}
else
printf("insert html code Failed:(\n");
//printf("HTML Text (length: %#x): %ws\n", );
//INT dwSize = wcslen(pText);
//CHAR *pOutter = (CHAR*)malloc(dwSize);
//WideCharToMultiByte(CP_ACP, 0, pText, dwSize, pOutter, dwSize, 0, 0);
//FILE *fp = fopen("html.html", "w");
////fprintf(fp, "%ws", pText);
//fwrite(pOutter, wcslen(pText), 1, fp);
//free(pOutter);
//fclose(fp);
}
else printf("Get IWebBrowser handle Failed:(\n");
}
//pHtmlDoc->get_body(&pHtmlElem); //get_body(&pHtmlElem);
//pHtmlElem->get_outerHTML(pText); //get_innerText(pText);
//printf("GOT > \n%ws\n", pText);
pWebBrow->Release();
pWebBrow = NULL;
}
else
printf("error returned Result Code: %#x\n", hRes);
}
else printf("get IHTMLDocument2 failed:(\n");
}
/*printf("%#x\n", hwd);
PostMessage(hWnd_IES, WM_QUIT, 0, 0);
PostMessage(hWnd_IES, WM_CLOSE, 0, 0);
PostMessage(hWnd_IES, WM_DESTROY, 0, 0);*/
/*CoUninitialize(); //添加则出现异常，可能是在程序退出时还会调用一次析构函数，以释放所有声明的变量
ExitProcess(0);*/
}
愈发感觉windows的不简单。
参考链接：
- MSDN
- 获取IWebBrowser2指针的方法