| 1 |
//********************************************************************************* |
| 2 |
// |
| 3 |
//Title: Terminal Services Window Clipper |
| 4 |
// |
| 5 |
//Author: Martin Wickett |
| 6 |
// |
| 7 |
//Date: 2004 |
| 8 |
// |
| 9 |
//********************************************************************************* |
| 10 |
|
| 11 |
#define TSDLL |
| 12 |
|
| 13 |
#include "clipper.h" |
| 14 |
|
| 15 |
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) |
| 16 |
{ |
| 17 |
UNREFERENCED_PARAMETER(lpvReserved); |
| 18 |
UNREFERENCED_PARAMETER(hinstDLL); |
| 19 |
|
| 20 |
switch (fdwReason) { |
| 21 |
case DLL_PROCESS_ATTACH: |
| 22 |
break; |
| 23 |
|
| 24 |
case DLL_THREAD_ATTACH: |
| 25 |
break; |
| 26 |
|
| 27 |
case DLL_THREAD_DETACH: |
| 28 |
break; |
| 29 |
|
| 30 |
case DLL_PROCESS_DETACH: |
| 31 |
break; |
| 32 |
|
| 33 |
default: |
| 34 |
break; |
| 35 |
} |
| 36 |
return TRUE; |
| 37 |
} |
| 38 |
|
| 39 |
void WINAPI VirtualChannelOpenEvent(DWORD openHandle, UINT event, |
| 40 |
LPVOID pdata, UINT32 dataLength, |
| 41 |
UINT32 totalLength, UINT32 dataFlags) |
| 42 |
{ |
| 43 |
LPDWORD pdwControlCode = (LPDWORD) pdata; |
| 44 |
CHAR ourData[1600]; |
| 45 |
UINT ui = 0; |
| 46 |
|
| 47 |
UNREFERENCED_PARAMETER(openHandle); |
| 48 |
UNREFERENCED_PARAMETER(dataFlags); |
| 49 |
|
| 50 |
ZeroMemory(ourData, sizeof(ourData)); |
| 51 |
|
| 52 |
//copy the send string (with the same lenth of the data) |
| 53 |
strncpy(ourData, (LPSTR) pdata, dataLength / sizeof(char)); |
| 54 |
|
| 55 |
if (OUTPUT_DEBUG_INFO == 1) { |
| 56 |
OutputDebugString |
| 57 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Virtual channel data received"); |
| 58 |
OutputDebugString(ourData); |
| 59 |
} |
| 60 |
|
| 61 |
if (dataLength == totalLength) { |
| 62 |
switch (event) { |
| 63 |
case CHANNEL_EVENT_DATA_RECEIVED: { |
| 64 |
CTokenizer tok(_T((LPSTR) ourData), _T(";")); |
| 65 |
CStdString cs; |
| 66 |
|
| 67 |
CWindowData *wid = new CWindowData(""); |
| 68 |
CStdString messageType; |
| 69 |
int mixMaxType = 0; |
| 70 |
|
| 71 |
while (tok.Next(cs)) { |
| 72 |
CStdString msg; |
| 73 |
CTokenizer msgTok(cs, _T("=")); |
| 74 |
|
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msgTok.Next(msg); |
| 76 |
|
| 77 |
if (strcmp(msg, "MSG") == 0) { |
| 78 |
msgTok.Next(msg); |
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messageType = msg; |
| 80 |
} |
| 81 |
|
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if (strcmp(msg, "ID") == 0) { |
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msgTok.Next(msg); |
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wid->SetId(msg); |
| 85 |
} else if (strcmp(msg, "TITLE") == 0) { |
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msgTok.Next(msg); |
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wid->SetTitle(msg); |
| 88 |
} else if (strcmp(msg, "POS") == 0) { |
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msgTok.Next(msg); |
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|
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CStdString pos; |
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CTokenizer posTok(msg, _T("~")); |
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|
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posTok.Next(pos); |
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|
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|
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// check bounds, coords can be negative if window top left point is moved off the screen. |
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// we don't care about that since the window can't be see so just use zero. |
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|
| 100 |
if (strchr(pos, '-') == NULL) { |
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wid->SetX1(atoi(pos)); |
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} else { |
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wid->SetX1(0); |
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} |
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|
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posTok.Next(pos); |
| 107 |
|
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if (strchr(pos, '-') == NULL) { |
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wid->SetY1(atoi(pos)); |
| 110 |
} else { |
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wid->SetY1(0); |
| 112 |
} |
| 113 |
|
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posTok.Next(pos); |
| 115 |
|
| 116 |
if (strchr(pos, '-') == NULL) { |
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wid->SetX2(atoi(pos)); |
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} else { |
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wid->SetX2(0); |
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} |
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|
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posTok.Next(pos); |
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|
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if (strchr(pos, '-') == NULL) { |
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wid->SetY2(atoi(pos)); |
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} else { |
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wid->SetY2(0); |
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} |
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} else if (strcmp(msg, "TYPE") == 0) { |
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msgTok.Next(msg); |
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mixMaxType = atoi(msg); |
| 132 |
} |
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} |
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|
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if (strcmp(messageType, "HSHELL_WINDOWCREATED") == 0) { |
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if (OUTPUT_DEBUG_INFO == 1) { |
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OutputDebugString |
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("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Message was of type HSHELL_WINDOWCREATED window title is:"); |
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OutputDebugString(wid->GetTitle()); |
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} |
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|
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CStdString s = wid->GetId(); |
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char *ptr; |
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int length = s.GetLength(); |
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ptr = s.GetBufferSetLength(length); |
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|
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hash_insert(ptr, wid, &m_ht); |
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|
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CreateAndShowWindow(wid); |
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|
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DoClipping(1); |
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} else if (strcmp(messageType, "HSHELL_WINDOWDESTROYED") == 0) { |
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if (OUTPUT_DEBUG_INFO == 1) { |
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OutputDebugString |
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("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Message was of type HSHELL_WINDOWDISTROYED window title is:"); |
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OutputDebugString(wid->GetTitle()); |
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} |
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|
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CStdString s = wid->GetId(); |
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char *ptr; |
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int length = s.GetLength(); |
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ptr = s.GetBufferSetLength(length); |
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|
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CWindowData *oldWinData = |
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(CWindowData *) hash_del(ptr, &m_ht); |
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|
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DestroyTaskbarWindow(oldWinData); |
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|
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delete oldWinData; |
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|
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DoClipping(1); |
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} else if (strcmp(messageType, "HCBT_MINMAX") == 0) { |
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if (OUTPUT_DEBUG_INFO == 1) { |
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OutputDebugString |
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("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Message was of type HCBT_MINMAX"); |
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} |
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|
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|
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//TODO |
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|
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} else if (strcmp(messageType, "HCBT_MOVESIZE") == 0) { |
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if (OUTPUT_DEBUG_INFO == 1) { |
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OutputDebugString |
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("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Message was of type HCBT_MOVESIZE window title is:"); |
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OutputDebugString(wid->GetTitle()); |
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} |
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|
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CStdString s = wid->GetId(); |
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char *ptr; |
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int length = s.GetLength(); |
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ptr = s.GetBufferSetLength(length); |
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|
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CWindowData *movedWinData = |
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(CWindowData *) hash_lookup(ptr, &m_ht); |
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|
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if (movedWinData != NULL) { |
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movedWinData->SetX1(wid->GetX1()); |
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movedWinData->SetX2(wid->GetX2()); |
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movedWinData->SetY1(wid->GetY1()); |
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movedWinData->SetY2(wid->GetY2()); |
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|
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DoClipping(1); |
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} |
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|
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delete wid; |
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} else if (strcmp(messageType, "CALLWNDPROC_WM_MOVING") == 0) { |
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if (OUTPUT_DEBUG_INFO == 1) { |
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OutputDebugString |
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("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Message was of type CALLWNDPROC_WM_MOVING window title is:"); |
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OutputDebugString(wid->GetTitle()); |
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} |
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|
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CStdString s = wid->GetId(); |
| 214 |
char *ptr; |
| 215 |
int length = s.GetLength(); |
| 216 |
ptr = s.GetBufferSetLength(length); |
| 217 |
|
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CWindowData *movedWinData = |
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(CWindowData *) hash_lookup(ptr, &m_ht); |
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|
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if (movedWinData != NULL) { |
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movedWinData->SetX1(wid->GetX1()); |
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movedWinData->SetX2(wid->GetX2()); |
| 224 |
movedWinData->SetY1(wid->GetY1()); |
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movedWinData->SetY2(wid->GetY2()); |
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|
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////might be too much of an overhead forcing the redraw here. Might be better to do 'DoClipping(0)' instead? |
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DoClipping(1); |
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} |
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|
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delete wid; |
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} |
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} |
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break; |
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|
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case CHANNEL_EVENT_WRITE_COMPLETE: {} |
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break; |
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|
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case CHANNEL_EVENT_WRITE_CANCELLED: {} |
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break; |
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|
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default: {} |
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break; |
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} |
| 245 |
} else {} |
| 246 |
} |
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|
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|
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VOID VCAPITYPE VirtualChannelInitEventProc(LPVOID pInitHandle, UINT event, |
| 250 |
LPVOID pData, UINT dataLength) |
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{ |
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UINT ui; |
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|
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UNREFERENCED_PARAMETER(pInitHandle); |
| 255 |
UNREFERENCED_PARAMETER(dataLength); |
| 256 |
|
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switch (event) { |
| 258 |
case CHANNEL_EVENT_INITIALIZED: {} |
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break; |
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|
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case CHANNEL_EVENT_CONNECTED: { |
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// |
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// open channel |
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// |
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ui = gpEntryPoints->pVirtualChannelOpen(gphChannel, |
| 266 |
&gdwOpenChannel, |
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CHANNELNAME, |
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(PCHANNEL_OPEN_EVENT_FN) |
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VirtualChannelOpenEvent); |
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|
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if (ui == CHANNEL_RC_OK) {} |
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else { |
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MessageBox(NULL, TEXT("Open of RDP virtual channel failed"), |
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TEXT("TS Window Clipper"), MB_OK); |
| 275 |
} |
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|
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if (ui != CHANNEL_RC_OK) { |
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return; |
| 279 |
} |
| 280 |
} |
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break; |
| 282 |
|
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case CHANNEL_EVENT_V1_CONNECTED: { |
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MessageBox(NULL, |
| 285 |
TEXT |
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("Connecting to a non Windows 2000 Terminal Server"), |
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TEXT("TS Window Clipper"), MB_OK); |
| 288 |
} |
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break; |
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|
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case CHANNEL_EVENT_DISCONNECTED: {} |
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break; |
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|
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case CHANNEL_EVENT_TERMINATED: { |
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// |
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// free the entry points table |
| 297 |
// |
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LocalFree((HLOCAL) gpEntryPoints); |
| 299 |
} |
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break; |
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|
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default: {} |
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break; |
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} |
| 305 |
} |
| 306 |
|
| 307 |
BOOL VCAPITYPE VirtualChannelEntry(PCHANNEL_ENTRY_POINTS pEntryPoints) |
| 308 |
{ |
| 309 |
CHANNEL_DEF cd; |
| 310 |
UINT uRet; |
| 311 |
|
| 312 |
size_t s = 10; |
| 313 |
hash_construct_table(&m_ht, s); |
| 314 |
|
| 315 |
// |
| 316 |
// allocate memory |
| 317 |
// |
| 318 |
gpEntryPoints = |
| 319 |
(PCHANNEL_ENTRY_POINTS) LocalAlloc(LPTR, pEntryPoints->cbSize); |
| 320 |
|
| 321 |
memcpy(gpEntryPoints, pEntryPoints, pEntryPoints->cbSize); |
| 322 |
|
| 323 |
// |
| 324 |
// initialize CHANNEL_DEF structure |
| 325 |
// |
| 326 |
ZeroMemory(&cd, sizeof(CHANNEL_DEF)); |
| 327 |
strcpy(cd.name, CHANNELNAME); // ANSI ONLY |
| 328 |
|
| 329 |
// |
| 330 |
// register channel |
| 331 |
// |
| 332 |
uRet = |
| 333 |
gpEntryPoints->pVirtualChannelInit((LPVOID *) & gphChannel, |
| 334 |
(PCHANNEL_DEF) & cd, 1, |
| 335 |
VIRTUAL_CHANNEL_VERSION_WIN2000, |
| 336 |
(PCHANNEL_INIT_EVENT_FN) |
| 337 |
VirtualChannelInitEventProc); |
| 338 |
|
| 339 |
if (uRet == CHANNEL_RC_OK) { |
| 340 |
if (ALWAYS__CLIP) { |
| 341 |
DoClipping(1); |
| 342 |
} |
| 343 |
} else { |
| 344 |
MessageBox(NULL, TEXT("RDP Virtual channel Init Failed"), |
| 345 |
TEXT("TS Window Clipper"), MB_OK); |
| 346 |
} |
| 347 |
|
| 348 |
if (uRet != CHANNEL_RC_OK) { |
| 349 |
return FALSE; |
| 350 |
} |
| 351 |
|
| 352 |
// |
| 353 |
// make sure channel was initialized |
| 354 |
// |
| 355 |
if (cd.options != CHANNEL_OPTION_INITIALIZED) { |
| 356 |
return FALSE; |
| 357 |
} |
| 358 |
|
| 359 |
return TRUE; |
| 360 |
} |
| 361 |
|
| 362 |
|
| 363 |
// data structure to transfer informations |
| 364 |
typedef struct _WindowFromProcessOrThreadID |
| 365 |
{ |
| 366 |
union |
| 367 |
{ |
| 368 |
DWORD procId; |
| 369 |
DWORD threadId; |
| 370 |
}; |
| 371 |
HWND hWnd; |
| 372 |
} |
| 373 |
Wnd4PTID; |
| 374 |
|
| 375 |
// Callback procedure |
| 376 |
BOOL CALLBACK PrivateEnumWindowsProc(HWND hwnd, LPARAM lParam) |
| 377 |
{ |
| 378 |
DWORD procId; |
| 379 |
DWORD threadId; |
| 380 |
Wnd4PTID *tmp = (Wnd4PTID *) lParam; |
| 381 |
// get the process/thread id of current window |
| 382 |
threadId = GetWindowThreadProcessId(hwnd, &procId); |
| 383 |
// check if the process/thread id equal to the one passed by lParam? |
| 384 |
if (threadId == tmp->threadId || procId == tmp->procId) { |
| 385 |
// check if the window is a main window |
| 386 |
// because there lots of windows belong to the same process/thread |
| 387 |
LONG dwStyle = GetWindowLong(hwnd, GWL_STYLE); |
| 388 |
if (dwStyle & WS_SYSMENU) { |
| 389 |
tmp->hWnd = hwnd; |
| 390 |
return FALSE; // break the enumeration |
| 391 |
} |
| 392 |
} |
| 393 |
return TRUE; // continue the enumeration |
| 394 |
} |
| 395 |
|
| 396 |
// Enumarate all the MainWindow of the system |
| 397 |
HWND FindProcessMainWindow(DWORD procId) |
| 398 |
{ |
| 399 |
Wnd4PTID tempWnd4ID; |
| 400 |
tempWnd4ID.procId = procId; |
| 401 |
if (!EnumWindows |
| 402 |
((WNDENUMPROC) PrivateEnumWindowsProc, (LPARAM) & tempWnd4ID)) { |
| 403 |
|
| 404 |
if (OUTPUT_DEBUG_INFO == 1) { |
| 405 |
OutputDebugString |
| 406 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Found main process window"); |
| 407 |
} |
| 408 |
|
| 409 |
return tempWnd4ID.hWnd; |
| 410 |
} |
| 411 |
|
| 412 |
|
| 413 |
if (OUTPUT_DEBUG_INFO == 1) { |
| 414 |
OutputDebugString |
| 415 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Could not find main process window"); |
| 416 |
} |
| 417 |
|
| 418 |
return NULL; |
| 419 |
} |
| 420 |
|
| 421 |
|
| 422 |
void DoClipping(int forceRedraw) |
| 423 |
{ |
| 424 |
//if main window handle is null, try to get it |
| 425 |
if (m_mainWindowHandle == NULL) { |
| 426 |
m_mainWindowHandle = FindProcessMainWindow(GetCurrentProcessId()); |
| 427 |
|
| 428 |
//hide the window from taskbar and put at the back of the z order |
| 429 |
if (HIDE_TSAC_WINDOW == 1) { |
| 430 |
ShowWindow(m_mainWindowHandle, SW_HIDE); |
| 431 |
SetWindowLongPtr(m_mainWindowHandle, GWL_EXSTYLE, |
| 432 |
GetWindowLong(m_mainWindowHandle, |
| 433 |
GWL_EXSTYLE) | WS_EX_TOOLWINDOW); |
| 434 |
ShowWindow(m_mainWindowHandle, SW_SHOW); |
| 435 |
} |
| 436 |
|
| 437 |
SetWindowPos(m_mainWindowHandle, HWND_NOTOPMOST, 0, 0, 0, 0, |
| 438 |
SWP_NOMOVE | SWP_NOSIZE); |
| 439 |
} |
| 440 |
|
| 441 |
//if we have the handle, lets use it for the clipping |
| 442 |
if (m_mainWindowHandle != NULL) { |
| 443 |
RECT wRect; |
| 444 |
GetWindowRect(m_mainWindowHandle, &wRect); |
| 445 |
|
| 446 |
if (OUTPUT_DEBUG_INFO == 1) { |
| 447 |
OutputDebugString |
| 448 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Restarting clipping..."); |
| 449 |
} |
| 450 |
|
| 451 |
m_regionResult = NULL; |
| 452 |
|
| 453 |
if (OUTPUT_WINDOW_TABLE_DEBUG_INFO == 1) { |
| 454 |
OutputDebugString |
| 455 |
("-----------------------------------------------------------------------------"); |
| 456 |
OutputDebugString |
| 457 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> starting printing of window table"); |
| 458 |
} |
| 459 |
|
| 460 |
//enumerate though hashtable |
| 461 |
if (&m_ht != NULL) { |
| 462 |
hash_enumerate(&m_ht, CreateRegionFromWindowData); |
| 463 |
} |
| 464 |
|
| 465 |
if (OUTPUT_WINDOW_TABLE_DEBUG_INFO == 1) { |
| 466 |
OutputDebugString |
| 467 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> finished printing of window table"); |
| 468 |
OutputDebugString |
| 469 |
("-----------------------------------------------------------------------------"); |
| 470 |
} |
| 471 |
|
| 472 |
if (m_regionResult == NULL) { |
| 473 |
if (ALWAYS__CLIP) { |
| 474 |
m_regionResult = CreateRectRgn(0, 0, 0, 0); |
| 475 |
} else { |
| 476 |
m_regionResult = |
| 477 |
CreateRectRgn(0, 0, wRect.right, wRect.bottom); |
| 478 |
} |
| 479 |
} |
| 480 |
|
| 481 |
SetWindowRgn(m_mainWindowHandle, (HRGN__ *) m_regionResult, TRUE); |
| 482 |
|
| 483 |
if (forceRedraw == 1) { |
| 484 |
// invalidate the window and force it to redraw |
| 485 |
RedrawWindow(m_mainWindowHandle, NULL, NULL, |
| 486 |
RDW_INVALIDATE | RDW_UPDATENOW | RDW_ALLCHILDREN); |
| 487 |
} |
| 488 |
} else { |
| 489 |
if (OUTPUT_DEBUG_INFO == 1) { |
| 490 |
OutputDebugString |
| 491 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Coulf not find window to clip"); |
| 492 |
} |
| 493 |
} |
| 494 |
} |
| 495 |
|
| 496 |
void CreateRegionFromWindowData(char *key, void *value) |
| 497 |
{ |
| 498 |
CWindowData *wd; |
| 499 |
wd = (CWindowData *) value; |
| 500 |
int x1 = 0, x2 = 0, y1 = 0, y2 = 0; |
| 501 |
|
| 502 |
char strB[5]; |
| 503 |
char strT[5]; |
| 504 |
char strL[5]; |
| 505 |
char strR[5]; |
| 506 |
|
| 507 |
if (m_regionResult == NULL) { |
| 508 |
m_regionResult = CreateRectRgn(0, 0, 0, 0); |
| 509 |
} |
| 510 |
|
| 511 |
if (OUTPUT_DEBUG_INFO == 1 && OUTPUT_WINDOW_TABLE_DEBUG_INFO != 1) { |
| 512 |
OutputDebugString |
| 513 |
("TS WINDOW CLIPPER :: CLIENT DLL :: Info --> Adding this window to cliping region"); |
| 514 |
OutputDebugString(wd->GetTitle()); |
| 515 |
} |
| 516 |
if (OUTPUT_WINDOW_TABLE_DEBUG_INFO == 1) { |
| 517 |
ltoa(wd->GetY2(), strB, 10); |
| 518 |
ltoa(wd->GetY1(), strT, 10); |
| 519 |
ltoa(wd->GetX2(), strR, 10); |
| 520 |
ltoa(wd->GetX1(), strL, 10); |
| 521 |
|
| 522 |
OutputDebugString("This window is in the table:"); |
| 523 |
OutputDebugString(wd->GetTitle()); |
| 524 |
OutputDebugString(wd->GetId()); |
| 525 |
OutputDebugString(strL); |
| 526 |
OutputDebugString(strT); |
| 527 |
OutputDebugString(strR); |
| 528 |
OutputDebugString(strB); |
| 529 |
OutputDebugString("*******************"); |
| 530 |
} |
| 531 |
|
| 532 |
HRGN newRegion = |
| 533 |
CreateRectRgn(wd->GetX1(), wd->GetY1(), wd->GetX2(), wd->GetY2()); |
| 534 |
|
| 535 |
CombineRgn(m_regionResult, newRegion, m_regionResult, RGN_OR); |
| 536 |
} |
| 537 |
|
| 538 |
/* |
| 539 |
Dummy procedure to catch when window is being maximised. |
| 540 |
|
| 541 |
Need to tell the window on the server to do the same. |
| 542 |
*/ |
| 543 |
LRESULT CALLBACK DummyWindowCallbackProc(HWND hwnd, UINT uMsg, WPARAM wParam, |
| 544 |
LPARAM lParam) |
| 545 |
{ |
| 546 |
//TODO |
| 547 |
|
| 548 |
return DefWindowProc(hwnd, uMsg, wParam, lParam); |
| 549 |
} |
| 550 |
|
| 551 |
void CreateAndShowWindow(CWindowData * wd) |
| 552 |
{ |
| 553 |
if (classAlreadyRegistered == 0) { |
| 554 |
static const char *szWndName = "WTSWinClipperDummy"; |
| 555 |
WNDCLASS wc; |
| 556 |
|
| 557 |
wc.style = 0; |
| 558 |
wc.lpfnWndProc = DummyWindowCallbackProc; |
| 559 |
wc.cbClsExtra = 0; |
| 560 |
wc.cbWndExtra = 0; |
| 561 |
wc.hInstance = 0; |
| 562 |
wc.hIcon = 0; |
| 563 |
wc.hCursor = 0; |
| 564 |
wc.hbrBackground = 0; |
| 565 |
wc.lpszMenuName = 0; |
| 566 |
wc.lpszClassName = szWndName; |
| 567 |
|
| 568 |
if (RegisterClass(&wc)) { |
| 569 |
classAlreadyRegistered = 1; |
| 570 |
} |
| 571 |
} |
| 572 |
|
| 573 |
if (classAlreadyRegistered = 1) { |
| 574 |
HWND hWnd = |
| 575 |
CreateWindow(TEXT("WTSWinClipperDummy"), wd->GetTitle(), WS_POPUP, |
| 576 |
0, 0, 0, 0, 0, 0, 0, 0); |
| 577 |
ShowWindow(hWnd, 3); |
| 578 |
SetWindowPos(hWnd, 0, 0, 0, 0, 0, SWP_NOREDRAW); |
| 579 |
wd->TaskbarWindowHandle = hWnd; |
| 580 |
SetFocus(m_mainWindowHandle); |
| 581 |
} |
| 582 |
} |
| 583 |
|
| 584 |
void DestroyTaskbarWindow(CWindowData * wd) |
| 585 |
{ |
| 586 |
if (wd->TaskbarWindowHandle != NULL) { |
| 587 |
DestroyWindow(wd->TaskbarWindowHandle); |
| 588 |
} |
| 589 |
} |
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