static LRESULT CALLBACK cliprdr_proc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
static wfClipboard* clipboard = NULL;
switch (Msg)
{
case WM_CREATE:
DEBUG_CLIPRDR("info: WM_CREATE");
clipboard = (wfClipboard*)((CREATESTRUCT*) lParam)->lpCreateParams;
if (!AddClipboardFormatListener(hWnd)) {
DEBUG_CLIPRDR("error: AddClipboardFormatListener failed with %#x.", GetLastError());
}
clipboard->hwnd = hWnd;
break;
case WM_CLOSE:
DEBUG_CLIPRDR("info: WM_CLOSE");
RemoveClipboardFormatListener(hWnd);
break;
case WM_CLIPBOARDUPDATE:
DEBUG_CLIPRDR("info: WM_CLIPBOARDUPDATE");
if (clipboard->sync)
{
if ((GetClipboardOwner() != clipboard->hwnd) &&
(S_FALSE == OleIsCurrentClipboard(clipboard->data_obj)))
{
if (clipboard->hmem)
{
GlobalFree(clipboard->hmem);
clipboard->hmem = NULL;
}
cliprdr_send_format_list(clipboard);
}
}
break;
case WM_RENDERALLFORMATS:
DEBUG_CLIPRDR("info: WM_RENDERALLFORMATS");
/* discard all contexts in clipboard */
if (!OpenClipboard(clipboard->hwnd))
{
DEBUG_CLIPRDR("OpenClipboard failed with 0x%x", GetLastError());
break;
}
EmptyClipboard();
CloseClipboard();
break;
case WM_RENDERFORMAT:
DEBUG_CLIPRDR("info: WM_RENDERFORMAT");
if (cliprdr_send_data_request(clipboard, (UINT32) wParam) != 0)
{
DEBUG_CLIPRDR("error: cliprdr_send_data_request failed.");
break;
}
if (!SetClipboardData((UINT) wParam, clipboard->hmem))
{
DEBUG_CLIPRDR("SetClipboardData failed with 0x%x", GetLastError());
if (clipboard->hmem)
{
GlobalFree(clipboard->hmem);
clipboard->hmem = NULL;
}
}
/* Note: GlobalFree() is not needed when success */
break;
case WM_CLIPRDR_MESSAGE:
DEBUG_CLIPRDR("info: WM_CLIPRDR_MESSAGE");
switch (wParam)
{
case OLE_SETCLIPBOARD:
DEBUG_CLIPRDR("info: OLE_SETCLIPBOARD");
if (wf_create_file_obj(clipboard, &clipboard->data_obj))
{
if (OleSetClipboard(clipboard->data_obj) != S_OK)
{
wf_destroy_file_obj(clipboard->data_obj);
clipboard->data_obj = NULL;
}
}
break;
default:
break;
}
break;
case WM_DESTROYCLIPBOARD:
case WM_ASKCBFORMATNAME:
case WM_HSCROLLCLIPBOARD:
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
case WM_VSCROLLCLIPBOARD:
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
static LRESULT CALLBACK cliprdr_proc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
static cliprdrContext *cliprdr = NULL;
switch (Msg)
{
case WM_CREATE:
cliprdr = (cliprdrContext *)((CREATESTRUCT *)lParam)->lpCreateParams;
cliprdr->hwndNextViewer = SetClipboardViewer(hWnd);
if (cliprdr->hwndNextViewer == NULL && GetLastError() != 0)
{
DEBUG_CLIPRDR("error: SetClipboardViewer failed with 0x%0x.", GetLastError());
}
cliprdr->hwndClipboard = hWnd;
break;
case WM_CLOSE:
ChangeClipboardChain(hWnd, cliprdr->hwndNextViewer);
break;
case WM_CHANGECBCHAIN:
if (cliprdr->hwndNextViewer == (HWND)wParam)
{
cliprdr->hwndNextViewer = (HWND)lParam;
}
else if (cliprdr->hwndNextViewer != NULL)
{
SendMessage(cliprdr->hwndNextViewer, Msg, wParam, lParam);
}
break;
case WM_DRAWCLIPBOARD:
if (cliprdr->channel_initialized)
{
if ((GetClipboardOwner() != cliprdr->hwndClipboard) && (S_FALSE == OleIsCurrentClipboard(cliprdr->data_obj)))
{
if (!cliprdr->hmem)
{
cliprdr->hmem = GlobalFree(cliprdr->hmem);
}
cliprdr_send_format_list(cliprdr);
}
}
if (cliprdr->hwndNextViewer != NULL && cliprdr->hwndNextViewer != hWnd)
SendMessage(cliprdr->hwndNextViewer, Msg, wParam, lParam);
break;
case WM_RENDERALLFORMATS:
/* discard all contexts in clipboard */
if (!OpenClipboard(cliprdr->hwndClipboard))
{
DEBUG_CLIPRDR("OpenClipboard failed with 0x%x", GetLastError());
break;
}
EmptyClipboard();
CloseClipboard();
break;
case WM_RENDERFORMAT:
if (cliprdr_send_data_request(cliprdr, (UINT32)wParam) != 0)
{
DEBUG_CLIPRDR("error: cliprdr_send_data_request failed.");
break;
}
if (SetClipboardData((UINT) wParam, cliprdr->hmem) == NULL)
{
DEBUG_CLIPRDR("SetClipboardData failed with 0x%x", GetLastError());
cliprdr->hmem = GlobalFree(cliprdr->hmem);
}
/* Note: GlobalFree() is not needed when success */
break;
case WM_CLIPRDR_MESSAGE:
switch (wParam)
{
case OLE_SETCLIPBOARD:
if (wf_create_file_obj(cliprdr, &cliprdr->data_obj))
if (OleSetClipboard(cliprdr->data_obj) != S_OK)
wf_destroy_file_obj(cliprdr->data_obj);
break;
default:
break;
}
break;
case WM_CLIPBOARDUPDATE:
case WM_DESTROYCLIPBOARD:
case WM_ASKCBFORMATNAME:
case WM_HSCROLLCLIPBOARD:
case WM_PAINTCLIPBOARD:
case WM_SIZECLIPBOARD:
case WM_VSCROLLCLIPBOARD:
default:
return DefWindowProc(hWnd, Msg, wParam, lParam);
}
return 0;
}
