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Feat: Support viewing active window via online-host popup menu

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yuanyuanxiang
2026-06-15 16:14:01 +02:00
parent 931492a294
commit 2765d95950
13 changed files with 118 additions and 24 deletions
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48
client/ScreenManager.cpp
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@@ -471,11 +471,18 @@ void CScreenManager::InitScreenSpy()
DXGI = param->buffer[0];
algo = param->length > 1 ? param->buffer[1] : algo;
all = param->length > 2 ? param->buffer[2] : all;
// buffer[3..10]: HWND(uint64_t)，启动时直接指定窗口捕获
if (param->length >= 3 + (int)sizeof(uint64_t) && !m_hTargetWnd) {
// buffer[3..10]: HWND(uint64_t)，启动时直接指定窗口捕获；
// 值为 (uint64_t)-1 时进入动态前景模式，每帧自动跟踪当前前景窗口
if (param->length >= 3 + (int)sizeof(uint64_t) && !m_hTargetWnd && !m_bDynamicForeground) {
uint64_t hwnd64 = 0;
memcpy(&hwnd64, param->buffer + 3, sizeof(uint64_t));
if (hwnd64) m_hTargetWnd = (HWND)(UINT_PTR)hwnd64;
if (hwnd64 == (uint64_t)-1) {
m_bDynamicForeground = true;
m_hTargetWnd = GetForegroundWindow();
Mprintf("CScreenManager: 动态前景窗口模式，初始 HWND=%p\n", m_hTargetWnd);
} else if (hwnd64) {
m_hTargetWnd = (HWND)(UINT_PTR)hwnd64;
}
}
}
m_pUserParam = param;
@@ -488,7 +495,7 @@ void CScreenManager::InitScreenSpy()
algo = m_QualityProfiles[level].algorithm;
}
// 窗口捕获必须走 GDI（PrintWindow），ScreenCapturerDXGI 无窗口捕获能力
if (m_hTargetWnd && DXGI == USING_DXGI) {
if ((m_hTargetWnd || m_bDynamicForeground) && DXGI == USING_DXGI) {
DXGI = USING_GDI;
Mprintf("CScreenManager: 窗口捕获模式，强制 GDI\n");
}
@@ -542,12 +549,12 @@ void CScreenManager::InitScreenSpy()
} else {
SAFE_DELETE(s);
m_isGDI = TRUE;
m_ScreenSpyObject = new CScreenSpy(32, algo, FALSE, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel, rect, switchScreen, m_hTargetWnd);
m_ScreenSpyObject = new CScreenSpy(32, algo, FALSE, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel, rect, switchScreen, m_hTargetWnd, m_bDynamicForeground);
Mprintf("CScreenManager: DXGI SPY init failed!!! Using GDI instead.\n");
}
} else {
m_isGDI = TRUE;
m_ScreenSpyObject = new CScreenSpy(32, algo, DXGI == USING_VIRTUAL, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel, rect, switchScreen, m_hTargetWnd);
m_ScreenSpyObject = new CScreenSpy(32, algo, DXGI == USING_VIRTUAL, DEFAULT_GOP, all, m_ScreenSettings.EncodeLevel, rect, switchScreen, m_hTargetWnd, m_bDynamicForeground);
}
}
@@ -651,10 +658,14 @@ DWORD WINAPI CScreenManager::WorkThreadProc(LPVOID lParam)
if (!This->IsConnected() && This->m_bIsWorking) This->OnReconnect();
if (!This->IsConnected()) continue;
if (!This->m_SendFirst && This->IsConnected()) {
This->m_SendFirst = TRUE;
This->SendBitMapInfo();
Sleep(50);
This->SendFirstScreen();
// 窗口捕获模式下目标窗口最小化时跳过首帧，等窗口恢复后再发
HWND _targetWnd = This->m_ScreenSpyObject ? This->m_ScreenSpyObject->GetTargetWindow() : NULL;
if (!_targetWnd || !IsIconic(_targetWnd)) {
This->m_SendFirst = TRUE;
This->SendBitMapInfo();
Sleep(50);
This->SendFirstScreen();
}
}
// 降低桌面检查频率，避免频繁的DC重置导致闪屏
if (This->IsRunAsService() && !This->m_virtual) {
@@ -711,6 +722,10 @@ DWORD WINAPI CScreenManager::WorkThreadProc(LPVOID lParam)
}
// 窗口捕获：尺寸变化时在工作线程内原地重建，无需跨线程同步
if (This->m_ScreenSpyObject && This->m_ScreenSpyObject->m_bNeedRestart) {
// 动态前景模式切换了新窗口：把新 HWND 同步回 CScreenManager，
// 否则 InitScreenSpy 会沿用旧 HWND，导致无限重建循环
if (This->m_ScreenSpyObject->m_NextTargetWnd)
This->m_hTargetWnd = This->m_ScreenSpyObject->m_NextTargetWnd;
SAFE_DELETE(This->m_ScreenSpyObject);
This->InitScreenSpy();
This->m_SendFirst = FALSE; // 触发重发 BitmapInfo + 首帧
@@ -852,7 +867,10 @@ VOID CScreenManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
// [mode:1][data] — mode=0x00 按标题, mode=0x01 按 HWND(uint64_t), 其余=恢复全屏
BYTE mode = (ulLength > 1) ? szBuffer[1] : 0xFF;
if (mode == 0x00 && ulLength > 2) {
const char* title = (const char*)(szBuffer + 2);
char title[512] = {};
int titleLen = ulLength - 2;
if (titleLen > (int)sizeof(title) - 1) titleLen = (int)sizeof(title) - 1;
memcpy(title, szBuffer + 2, titleLen);
m_hTargetWnd = title[0] ? FindWindowA(NULL, title) : NULL;
Mprintf("[CScreenManager] 窗口捕获(标题): '%s' -> HWND=%p\n", title, m_hTargetWnd);
} else if (mode == 0x01 && ulLength >= 2 + sizeof(uint64_t)) {
@@ -862,6 +880,11 @@ VOID CScreenManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
Mprintf("[CScreenManager] 窗口捕获(HWND): 0x%llx -> HWND=%p\n", val, m_hTargetWnd);
} else {
m_hTargetWnd = NULL;
m_bDynamicForeground = false;
// 防止 RestartScreen→InitScreenSpy 重新读取旧 HWND 再次进入窗口模式
if (m_pUserParam && m_pUserParam->length >= 3 + (int)sizeof(uint64_t)) {
memset(m_pUserParam->buffer + 3, 0, sizeof(uint64_t));
}
Mprintf("[CScreenManager] 窗口捕获取消，恢复全屏\n");
}
RestartScreen();
@@ -2087,7 +2110,8 @@ VOID CScreenManager::ProcessCommand(LPBYTE szBuffer, ULONG ulLength)
if (m_ScreenSpyObject) {
HWND hwndTarget = m_ScreenSpyObject->GetTargetWindow();
if (hwndTarget && IsWindow(hwndTarget) && !IsIconic(hwndTarget)) {
SetForegroundWindow(hwndTarget);
if (!SetForegroundWindow(hwndTarget))
return; // UIPI 等原因置前失败，不向错误窗口注入输入
}
}