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

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yuanyuanxiang
2026-06-15 13:08:23 +02:00
parent 5757ec7965
commit d3b9e7faae
16 changed files with 210 additions and 10 deletions
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18
client/ScreenSpy.h
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@@ -95,10 +95,24 @@ protected:
BOOL m_bVirtualPaint;// 是否虚拟绘制
EnumHwndsPrintData m_data;
HWND m_hTargetWnd = NULL; // 窗口捕获目标（NULL=全屏）
int m_ShadowLeft = 0; // DWM 阴影左偏移（frameRc.left - fullRc.left），帧间缓存
int m_ShadowTop = 0; // DWM 阴影上偏移（frameRc.top - fullRc.top），帧间缓存
int m_CachedWndW = 0; // 上帧 GetWindowRect 宽度，用于检测 resize 无需每帧调 DWM
int m_CachedWndH = 0; // 上帧 GetWindowRect 高度
int m_PendingWndW = 0; // 防抖：检测到尺寸变化后记录的新宽度
int m_PendingWndH = 0; // 防抖：检测到尺寸变化后记录的新高度
DWORD m_SizeChangeTick = 0; // 防抖：尺寸上次变化的时间戳（GetTickCount）
public:
CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE,
int level = LEVEL_H264_SOFT, RECT rc = {0}, BOOL switchScreen = TRUE);
CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE,
int level = LEVEL_H264_SOFT, RECT rc = {0}, BOOL switchScreen = TRUE, HWND hwnd = NULL);
virtual HWND GetTargetWindow() const override { return m_hTargetWnd; }
// 窗口模式下 m_ulFullWidth/Height 是窗口尺寸，但 SendInput 的 dx/dy 分母必须是屏幕尺寸
virtual int GetScreenWidth() const override { return m_hTargetWnd ? GetSystemMetrics(SM_CXSCREEN) : m_ulFullWidth; }
virtual int GetScreenHeight() const override { return m_hTargetWnd ? GetSystemMetrics(SM_CYSCREEN) : m_ulFullHeight; }
virtual ~CScreenSpy();