Why I use webbrowser control after loading web pages, after verification code image copy to clipboard, program in the face of the clipboard operation paste pictures do not come out, but in Word document and paste, couldn't paste in drawing, could you tell me is what reason, the following is a copy code and clipboard operations

 HRESULT hr; 
PDisp IDispatch *=NULL; 
PDisp=m_web. Get_Document ();//get the webBrowser control interface 
PDoc IHTMLDocument2 *=NULL; 
Hr=pDisp - & gt; QueryInterface (IID_IHTMLDocument2, (void * *) & amp; PDoc);//get web document interface 

IHTMLElementCollection * pColl=NULL; 
Hr=pDoc - & gt; The get_all (& amp; PColl);//get all the page elements record collection 

IDispatch * pDisp2=NULL; 
The VARIANT index;//used to receive return elements based on the index, general need not, as it is good, but with the IDispatch receives the element object interface 
Index. N=VT_I4; 
The index. The lVal=0; 

The VARIANT varIdName;//to find HTML tag ID and the ID captcha images 
TANGRAM__PSP_3__verifyCodeImg varIdName=StringToVariant (_T (" ")); 
/* varIdName=StringToVariant (_T (" randomCodeImg ")); */

Hr=pColl - & gt; The item (varIdName, index, & amp; PDisp2); The location of the//find the element 
If (S_OK==hr & amp; & NULL!=pDisp2) 
{
Cstrings dd.//temp 
IHTMLElement * pelmBody=NULL; 
If (FAILED (pDoc - & gt; Get_body (& amp; PelmBody) | | pelmBody==NULL)//the abnormal exit here 
Goto the Cleanup. 
IHTMLElement2 * pelmBodyTwo=NULL; 
If (FAILED (pelmBody - & gt; QueryInterface (IID_IHTMLElement2, (void * *) & amp; PelmBodyTwo) | | pelmBodyTwo==NULL) 
Goto the Cleanup. 
IDispatch * pdispCtrlRange=NULL; 
If (FAILED (pelmBodyTwo - & gt; CreateControlRange (& amp; PdispCtrlRange) | | pdispCtrlRange==NULL) 
Goto the Cleanup. 
IHTMLControlRange * pCtrlRange=NULL; 
If (FAILED (pdispCtrlRange - & gt; QueryInterface (IID_IHTMLControlRange, (void * *) & amp; PCtrlRange) | | pCtrlRange==NULL) 
Goto the Cleanup. 
IHTMLControlElement * pCtrlElement=NULL; 
If (FAILED (pDisp2 - & gt; QueryInterface (IID_IHTMLControlElement, (void * *) & amp; PCtrlElement) | | pCtrlElement==NULL) 
Goto the Cleanup. 

Hr=pCtrlRange - & gt; Add (pCtrlElement); 
The VARIANT vEmpty; 
VEmpty. N=VT_UINT; 
VEmpty. LVal=0; 
BSTR bstrCommand=SysAllocString (L "Copy");//the Cut 
VARIANT_BOOL vbReturn; 
//OpenClipboard (); 
//clear clipboard 
//EmptyClipboard (); 
//long len. 
If (SUCCEEDED (hr)) 
{
Hr=pCtrlRange - & gt; ExecCommand (bstrCommand, VARIANT_FALSE vEmpty, & amp; VbReturn);//copy to memory 
//pCtrlRange - & gt; Get_length (& amp; Len); 
} 
//the clipboard format into a specified format, 
//EnumClipboardFormats (CF_BITMAP); 
//CloseClipboard (); 
PCtrlElement - & gt; Release (); 
Dd. The Format (" % d ", L vbReturn); 
AfxMessageBox (dd); 
The Cleanup: 
SysFreeString (bstrCommand); 

If (pCtrlRange) 
PCtrlRange - & gt; Release (); 
If (pdispCtrlRange) 
PdispCtrlRange - & gt; Release (); 
If (pelmBodyTwo) 
PelmBodyTwo - & gt; Release (); 
If (pelmBody) 
PelmBody - & gt; Release (); 
If (pColl) 
PColl - & gt; Release (); 
} 
If (pDisp2) 
PDisp2 - & gt; Release (); 

 OpenClipboard (); 
//handle to obtain the clipboard data 
HANDLE hBitmap=GetClipboardData (CF_BITMAP);//get the BMP handle! 
If (hBitmap) 
{
AfxMessageBox (L "data"); 
//to get equipment environment handle 
CStatic * pWnd=(CStatic *) GetDlgItem (IDC_STATIC);//get the Picture Control handle 
The CDC * pDc=pWnd - & gt; GetDC (); 
HDC HDC=pDc - & gt; GetSafeHdc (); 
//create the memory associated with equipment environment 
HDC hdcMem=CreateCompatibleDC (HDC); 
//select object 
SelectObject (hdcMem hBitmap); 
//set the mapping mode 
SetMapMode (hdcMem, GetMapMode (hDC)); 
//get the bitmap object 
BITMAP bm. 
//bitmap copy 
GetObject (hBitmap, sizeof (BITMAP), & amp; Bm); 
BitBlt (hDC, 0, 0, bm. BmWidth, bm. BmHeight, hdcMem, 0, 0, SRCCOPY); 
//release equipment environment handle 
//ReleaseDC (hDC); 
DeleteDC (hdcMem); 
//delete memory environment 

} 
//off the clipboard 
CloseClipboard (); 

CodePudding user response:

Refer to the inside of the MSDN clipboard viewer source code,

CodePudding user response:

Can you give a website

CodePudding user response:

This is clear clipboard data format is not right

CodePudding user response:

I don't have you tried many format can website I am using https://passport.baidu.com/v2/? The login authentication code inside picture is PNG

 

If (OpenClipboard ()) 
{
UINT clipboard_format=0; 
While (clipboard_format=EnumClipboardFormats (clipboard_format)) 
{
Printf (" Clipboard Data Format x=0 x % \ n ", clipboard_format); 
HGLOBAL global_memory=GetClipboardData (clipboard_format); 
LPCSTR clipboard_data=https://bbs.csdn.net/topics/(LPCSTR) GlobalLock (global_memory); 
If (clipboard_data!=NULL) 
{
//the address data on the clipboard 
Printf (" Clipboard Data Address x=0 x % \ n ", global_memory); 

//on the clipboard data size 
DWORD data_size=GlobalSize (global_memory); 
Printf (" Data Size=% d \ n ", data_size); 
//hexadecimal output data 
Printf (" Data: "); 
The switch (clipboard_format) 
{
Case CF_TEXT: 
AfxMessageBox (L "CF_TEXT"); 
break; 
Case CF_BITMAP: 
AfxMessageBox (L "CF_BITMAP"); 
break; 
Case CF_METAFILEPICT: 
AfxMessageBox (L "CF_METAFILEPICT"); 
break; 
Case CF_SYLK: 
AfxMessageBox (L "CF_SYLK"); 
break; 
Case CF_DIF: 
AfxMessageBox (L "CF_DIF"); 
break; 
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