I've an MFC application to list the files in the clipboard, the code works fine if the clipboard contains less than 10000 files, but if it is more than 10000 GetClipboardData API failed.
When I use GetLastError() it returns 1418 ERROR_CLIPBOARD_NOT_OPEN
TCHAR lpszFileName[MAX_PATH];
OpenClipboard(0);
APDeviceReport objApd;
HGLOBAL hGlobal = (HGLOBAL)GetClipboardData(CF_HDROP); // Failed when clipboard conatins more than 10000 files
if (hGlobal)
{
HDROP hDrop = (HDROP)GlobalLock(hGlobal);
if (hDrop)
{
UINT fileCount = DragQueryFile(hDrop, 0xFFFFFFFF, 0, 0);
UINT filenameLength;
for (UINT i = 0; i < fileCount; ++i)
{
filenameLength = DragQueryFile(hDrop, i, 0, 0);
DragQueryFile(hDrop, i, lpszFileName, filenameLength+1);
objApd.AddFileList(lpszFileName);
}
GlobalUnlock(hGlobal);
}
}
CloseClipboard();
If anyone knows why it is please share suggestions to solve this.
Related
BIN file to resources of my executable file and then load it from resources instead of argv argument like : "loader.exe some.bin" i need a do this inside exe without putting file on disk here is code which i currently use:
LPSTR finalShellcode = NULL, data = NULL;
DWORD finalSize, dataSize;
DWORD dwOldProtect1 = 0;
SYSTEM_INFO sysInfo;
HMODULE test = LoadLibraryA("User32.dll");
if (argc < 2) {
return 0;
}
if (!GetFileContents(argv[1], &data, dataSize)) {
return 0;
}
if (data[0] == 'M' && data[1] == 'Z') {
if (!ConvertToShellcode(data, dataSize, HashFunctionName("SayHello"), "dave", 5, SRDI_CLEARHEADER, finalShellcode, finalSize)) {
return 0;
}
And here is GetFileContents function :
DWORD GetFileContents(LPCSTR filename, LPSTR *data, DWORD &size)
{
std::FILE *fp = std::fopen(filename, "rb");
if (fp)
{
fseek(fp, 0, SEEK_END);
size = ftell(fp);
fseek(fp, 0, SEEK_SET);
*data = (LPSTR)malloc(size + 1);
fread(*data, size, 1, fp);
fclose(fp);
return true;
}
return false;
}
Iam try make BIN file like RC data but without solution i dont know how i can embed .bin to resource then load it directly from resources any ideas any help? Thanks a lot
now i ADD test.bin as RCDATA with name IDR_RCDATA1 :
HMODULE hModule = GetModuleHandle(NULL);
HRSRC hResource = FindResource(hModule, MAKEINTRESOURCE(IDR_RCDATA1), RT_RCDATA); // substitute RESOURCE_ID and RESOURCE_TYPE.
HGLOBAL hMemory = LoadResource(hModule, hResource);
DWORD dwSize = SizeofResource(hModule, hResource);
LPVOID lpAddress = LockResource(hMemory);
char *bytes = new char[dwSize];
but i dont know ho to make it working...
A also read : How to load a custom binary resource in a VC++ static library as part of a dll? but without solution
I have an MFC application to find the files in the clipboard, It's work fine when copying the file but fails during the cut and paste operation. When I live debugged it shows that GetClipboardData(CF_HDROP) fails and returns Error NO 1418.
here is my code
TCHAR lpszFileName[MAX_PATH];
bool bStart = true;
CString csFile ="",
strErr = "";
bool bOpen = OpenClipboard(0);
if(!bOpen)
{
strErr.Format("clipboard Error %d",GetLastError());
WriteLog(TYPECAST_T0_LPTSTR strErr,1,1);
}
HGLOBAL hGlobal = (HGLOBAL)GetClipboardData(CF_HDROP);
if (hGlobal)
{
HDROP hDrop = (HDROP)GlobalLock(hGlobal);
if (hDrop)
{
UINT fileCount = DragQueryFile(hDrop, 0xFFFFFFFF, 0, 0);
UINT filenameLength;
for (UINT i = 0; i < fileCount; ++i)
{
filenameLength = DragQueryFile(hDrop, i, 0, 0);
DragQueryFile(hDrop, i, lpszFileName, filenameLength+1);
csFile = (CString)lpszFileName;
AddFileList(csFile);
}
}
}
else
{
strErr.Format("clipboard Error %d",GetLastError());
WriteLog(TYPECAST_T0_LPTSTR strErr,1,1);
}
CloseClipboard();
GlobalUnlock(hGlobal);
if anyone konws how to solve this, please share it
Error 1418 is ERROR_CLIPBOARD_NOT_OPEN. I think it is because you forget don't close clipboard properly. GlobalUnlock(hGlobal); should reside inside of if (hDrop) block and gets called before closing clipboard. Also OpenClipboard returns BOOL, not bool and the returned BOOL value of CloseClipboard should be inspected.
I'm working on a C/S application, Server in C++ and Client in C#, I need to send some information about current running processes and related icon.
I get icon file thanks to EnumWindows with this code inside the callback...
// Get the window icon
HICON hIcon = (HICON)(::SendMessageW(hWnd, WM_GETICON, ICON_SMALL, 0));
if (hIcon == 0) {
// Alternative method. Get from the window class
hIcon = reinterpret_cast<HICON>(::GetClassLongPtrW(hWnd, GCLP_HICONSM));
}
// Alternative: get the first icon from the main module
if (hIcon == 0) {
hIcon = ::LoadIcon(GetModuleHandleW(0), MAKEINTRESOURCE(0));
}
// Alternative method. Use OS default icon
if (hIcon == 0) {
hIcon = ::LoadIcon(0, IDI_APPLICATION);
}
OK, now I have the Icon and I can "print" it (simply for check) with DrawIcon().
My question is: How to get bytes starting from this?
I need a buffer to send this data to my Client and CONVERT the same data to display icon in a list (icon + process_name). So, I need to get bytes of this icon/hIcon (or bitmap/hBitmap, etc.)
(Of course I need help for server side.)
I think is good to copy the icon in a temp buffer to get bytes but nothing works.
Any help would be appreciated.
EDIT:
#DavidHeffernan thank you for reply. I found this: Converting-DDB-to-DIB through StackOverflow's past questions (sorry if is bad to post external links).
Now, with GetDIBits() I have in the fifth param the LPVOID lpvBits , that is "A pointer to a buffer to receive the bitmap data msdn - GetDIBits()"
Now, How Should I send from lpvBits? What's about Bitmap Size?
I've found something on MSDN and StackOverflow and it helped me: link;
#include "stdafx.h"
#include <windows.h>
#include <olectl.h>
#pragma comment(lib, "oleaut32.lib")
HRESULT SaveIcon(HICON hIcon, const wchar_t* path) {
// Create the IPicture intrface
PICTDESC desc = { sizeof(PICTDESC) };
desc.picType = PICTYPE_ICON;
desc.icon.hicon = hIcon;
IPicture* pPicture = 0;
HRESULT hr = OleCreatePictureIndirect(&desc, IID_IPicture, FALSE, (void**)&pPicture);
if (FAILED(hr)) return hr;
// Create a stream and save the image
IStream* pStream = 0;
CreateStreamOnHGlobal(0, TRUE, &pStream);
LONG cbSize = 0;
hr = pPicture->SaveAsFile(pStream, TRUE, &cbSize);
// Write the stream content to the file
if (!FAILED(hr)) {
HGLOBAL hBuf = 0;
GetHGlobalFromStream(pStream, &hBuf);
void* buffer = GlobalLock(hBuf);
HANDLE hFile = CreateFile(path, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0);
if (!hFile) hr = HRESULT_FROM_WIN32(GetLastError());
else {
DWORD written = 0;
WriteFile(hFile, buffer, cbSize, &written, 0);
CloseHandle(hFile);
}
GlobalUnlock(buffer);
}
// Cleanup
pStream->Release();
pPicture->Release();
return hr;
}
int _tmain(int argc, _TCHAR* argv[])
{
HICON hIcon = (HICON)LoadImage(0, L"c:\\windows\\system32\\perfcentercpl.ico", IMAGE_ICON, 32, 32, LR_LOADFROMFILE);
if (!hIcon) return GetLastError();
HRESULT hr = SaveIcon(hIcon, L"c:\\temp\\test.ico");
return hr;
}
Thanks to SaveIcon() I can save it and after, when needed, I can open it as binary file and send it via socket.
I am trying to modify the existing AmCap application, available through Microsoft's SDK Direct Show samples, in order to get an image of the captured stream when I press the space button. Below is the point in which I am handling the space keydown.
case WM_KEYDOWN:
if((GetAsyncKeyState(VK_ESCAPE) & 0x01) && gcap.fCapturing)
{
StopCapture();
if(gcap.fWantPreview)
{
BuildPreviewGraph();
StartPreview();
}
}
else if ((GetAsyncKeyState(VK_SPACE) & 0x01))
{
IMediaControl *pMC = NULL;
HRESULT hr = gcap.pFg->QueryInterface(IID_IMediaControl, (void **)&pMC);
if (SUCCEEDED(hr)){
hr=pMC->Pause();
if (SUCCEEDED(hr)){
CaptureImage(TEXT("C:\\output.bmp"));
pMC->Run();
pMC->Release();
}else
ErrMsg(TEXT("Failed to pause stream! hr=0x%x"), hr);
}
else
ErrMsg(TEXT("Cannot grab image"));
}
break;
Below is the contents of the CaptureImage function.
HRESULT hr;
SmartPtr<IBasicVideo> pWC;
// If we got here, gcap.pVW is not NULL
ASSERT(gcap.pVW != NULL);
hr = gcap.pVW->QueryInterface(IID_IBasicVideo, (void**)&pWC);
if (pWC)
{
long bufSize;
long *lpCurrImage = NULL;
pWC->GetCurrentImage(&bufSize, NULL);
lpCurrImage = (long *)malloc(bufSize);
//
// Read the current video frame into a byte buffer. The information
// will be returned in a packed Windows DIB and will be allocated
// by the VMR.
hr = pWC->GetCurrentImage(&bufSize, lpCurrImage);
if (SUCCEEDED(hr))
{
HANDLE fh;
BITMAPFILEHEADER bmphdr;
BITMAPINFOHEADER bmpinfo;
DWORD nWritten;
memset(&bmphdr, 0, sizeof(bmphdr));
memset(&bmpinfo, 0, sizeof(bmpinfo));
bmphdr.bfType = ('M' << 8) | 'B';
bmphdr.bfSize = sizeof(bmphdr) + sizeof(bmpinfo) + bufSize;
bmphdr.bfOffBits = sizeof(bmphdr) + sizeof(bmpinfo);
bmpinfo.biSize = sizeof(bmpinfo);
bmpinfo.biWidth = 640;
bmpinfo.biHeight = 480;
bmpinfo.biPlanes = 1;
bmpinfo.biBitCount = 32;
fh = CreateFile(TEXT("C:\\Users\\mike\\Desktop\\output.bmp"),
GENERIC_WRITE, 0, NULL,
CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
WriteFile(fh, &bmphdr, sizeof(bmphdr), &nWritten, NULL);
WriteFile(fh, &bmpinfo, sizeof(bmpinfo), &nWritten, NULL);
WriteFile(fh, lpCurrImage, bufSize, &nWritten, NULL);
CloseHandle(fh);
ErrMsg(TEXT("Captured current image to %s"), szFile);
return TRUE;
}
else
{
ErrMsg(TEXT("Failed to capture image! hr=0x%x"), hr);
return FALSE;
}
}
return FALSE;
The problem is that when I am trying to run the app, I receive an HRESULT (0x8000ffff) error when the GetCurrentImage function is being called.
On the other hand in case I execute the app through the VS debugger the code works just fine.
I tried to add a Sleep just after the stream pMC->Pause(), assuming that the problem was timing issue but that did not work.
Any ideas would be extremely helpful!
Thank you in advance.
I try to extract the icon of file and return it to GetIconLocation of shell extension.
in general I change the icons of files (te.docx.xx) with the extension of xx and returns the icon of file without the xx. (for this I cretae temp file in temp directory with the original extension e.g te.docx)
my operating system is windows 7 x64.
my code is:
STDMETHODIMP CTxtIconShlExt::GetIconLocation (
UINT uFlags, LPTSTR szIconFile, UINT cchMax,
int* piIndex, UINT* pwFlags )
{
DWORD dwFileSizeLo, dwFileSizeHi;
DWORDLONG qwSize;
HANDLE hFile;
OutputDebugStringW(L"Hello world, from GetIconLocation !");
std::string strFilePath;
std::string tempFolder="c:\\.tmp";
std::string tempFile="tmpfile";
std::string fileWithOutDN;
SHFILEINFO retShFileInfo;
for(int i = 0; m_szFilename[i] != 0; i++)
{
strFilePath += m_szFilename[i];
}
fileWithOutDN= strFilePath.substr(0,strFilePath.size()-3 );
std::string extension = fileWithOutDN.substr(fileWithOutDN.find_last_of("."));
CreateDirectory(tempFolder.c_str(),NULL);
tempFile=tempFolder+"\\"+tempFile+extension;
GetFileAttributes(tempFile.c_str()); // from winbase.h
if(INVALID_FILE_ATTRIBUTES == GetFileAttributes(tempFile.c_str()) && GetLastError()==ERROR_FILE_NOT_FOUND)
{
//File not found
HANDLE h = CreateFile(tempFile.c_str(), // name of the file
GENERIC_WRITE, // open for writing
0, // sharing mode, none in this case
0, // use default security descriptor
CREATE_ALWAYS, // overwrite if exists
FILE_ATTRIBUTE_NORMAL,
0);
if (h)
{
CloseHandle(h);
}else
{
return S_FALSE; //faild to create file
}
}
ZeroMemory(&retShFileInfo, sizeof(SHFILEINFO));
CoInitialize(NULL);
SHGetFileInfo(tempFile.c_str(),256,&retShFileInfo,sizeof(SHFILEINFO),SHGFI_ICON | SHGFI_LARGEICON);
lstrcpyn ( szIconFile, retShFileInfo.szDisplayName, cchMax );
*piIndex = retShFileInfo.iIcon;
*pwFlags = 0;
return S_OK;
my problem is that the retShFileInfo.szDisplayName return an empty array (all items are zero), it should return full path to icon location.
I try to play with the combination of the flags but nothing was helpful