ScreenCaptureParameters Struct Reference

Data Fields
bool	captureAudio
ScreenAudioParameters	audioParams
VideoDimensions	dimensions
int	frameRate
int	bitrate
bool	captureMouseCursor
bool	windowFocus
view_t *	excludeWindowList
int	excludeWindowCount
int	highLightWidth
unsigned int	highLightColor
bool	enableHighLight

Constructor & Destructor Documentation

ScreenCaptureParameters() [1/6]

ScreenCaptureParameters ( )

inline

ScreenCaptureParameters() [2/6]

ScreenCaptureParameters ( const VideoDimensions &  d, int  f, int  b  )

inline

ScreenCaptureParameters() [3/6]

ScreenCaptureParameters ( int  width, int  height, int  f, int  b  )

inline

ScreenCaptureParameters() [4/6]

ScreenCaptureParameters ( int  width, int  height, int  f, int  b, bool  cur, bool  fcs  )

inline

ScreenCaptureParameters() [5/6]

ScreenCaptureParameters ( int  width, int  height, int  f, int  b, view_t *  ex, int  cnt  )

inline

ScreenCaptureParameters() [6/6]

ScreenCaptureParameters ( int  width, int  height, int  f, int  b, bool  cur, bool  fcs, view_t *  ex, int  cnt  )

inline

Field Documentation

captureAudio

bool captureAudio

Determines whether to capture system audio during screen sharing:

• true: Capture.
• false: (Default) Do not capture.

Note

Due to system limitations, capturing system audio is only available for Android API level 29 and later (that is, Android 10 and later).

audioParams

ScreenAudioParameters audioParams

The audio configuration for the shared screen stream.

Note

This parameter only takes effect when captureAudio is true. See ScreenAudioParameters.

dimensions

VideoDimensions dimensions

The video encoding resolution of the screen sharing stream. See VideoDimensions. The default value is 1920 × 1080, that is, 2,073,600 pixels. Agora uses the value of this parameter to calculate the charges. If the screen dimensions are different from the value of this parameter, Agora applies the following strategies for encoding. Suppose dimensions is set to 1920 × 1080:

• If the value of the screen dimensions is lower than that of dimensions, for example, 1000 × 1000 pixels, the SDK uses the screen dimensions, that is, 1000 × 1000 pixels, for encoding.
• If the value of the screen dimensions is higher than that of dimensions, for example, 2000 × 1500, the SDK uses the maximum value under dimensions with the aspect ratio of the screen dimension (4:3) for encoding, that is, 1440 × 1080.

  Note

  When setting the encoding resolution in the scenario of sharing documents ( SCREEN_SCENARIO_DOCUMENT ), choose one of the following two methods:

• If you require the best image quality, it is recommended to set the encoding resolution to be the same as the capture resolution.
• If you wish to achieve a relative balance between image quality, bandwidth, and system performance, then:
  • When the capture resolution is greater than 1920 × 1080, it is recommended that the encoding resolution is not less than 1920 × 1080.
  • When the capture resolution is less than 1920 × 1080, it is recommended that the encoding resolution is not less than 1280 × 720.

frameRate

int frameRate

On Windows and macOS, this represents the video encoding frame rate (fps) of the screen sharing stream. The frame rate (fps) of the shared region. The default value is 5. Agora does not recommend setting this to a value greater than 15.

bitrate

int bitrate

On Windows and macOS, this represents the video encoding bitrate of the screen sharing stream. The bitrate (Kbps) of the shared region. The default value is 0 (the SDK works out a bitrate according to the dimensions of the current screen).

captureMouseCursor

bool captureMouseCursor

Whether to capture the mouse in screen sharing:

• true: (Default) Capture the mouse.
• false: Do not capture the mouse.

  Note

  Due to macOS system restrictions, setting this parameter to false is ineffective during screen sharing (it has no impact when sharing a window).

windowFocus

bool windowFocus

Whether to bring the window to the front when calling the startScreenCaptureByWindowId method to share it:

• true: Bring the window to the front.
• false: (Default) Do not bring the window to the front.

  Note

  Due to macOS system limitations, when setting this member to bring the window to the front, if the current app has multiple windows, only the main window will be brought to the front.

excludeWindowList

view_t* excludeWindowList

The ID list of the windows to be blocked. When calling startScreenCaptureByDisplayId to start screen sharing, you can use this parameter to block a specified window. When calling updateScreenCaptureParameters to update screen sharing configurations, you can use this parameter to dynamically block a specified window.

excludeWindowCount

int excludeWindowCount

The number of windows to be excluded.

Note

On the Windows platform, the maximum value of this parameter is 24; if this value is exceeded, excluding the window fails.

highLightWidth

int highLightWidth

(For macOS and Windows only) The width (px) of the border. The default value is 5, and the value range is (0, 50].

Note

This parameter only takes effect when highLighted is set to true.

highLightColor

unsigned int highLightColor

(For macOS and Windows only)

• On Windows platforms, the color of the border in ARGB format. The default value is 0xFF8CBF26.
• On macOS, COLOR_CLASS refers to NSColor.

enableHighLight

bool enableHighLight

(For macOS and Windows only) Whether to place a border around the shared window or screen:

• true: Place a border.
• false: (Default) Do not place a border.

  Note

  When you share a part of a window or screen, the SDK places a border around the entire window or screen if you set this parameter to true.