private void cb_setquality_SelectedIndexChanged(object sender, EventArgs e)
{
_setvideoqualitycb = new NIMVChatOptHandler((ret, code, json) =>
{
//ret true
//设置成功
});
NIMVChatVideoQuality quality = (NIMVChatVideoQuality)((ComboBox)sender).SelectedItem;
NIM.VChatAPI.SetVideoQuality(quality, "", _setvideoqualitycb);
}
internal static extern void nim_vchat_set_video_quality(NIMVChatVideoQuality video_quality,
[MarshalAs(UnmanagedType.CustomMarshaler, MarshalTypeRef = typeof(NimUtility.Utf8StringMarshaler))] string json_extension,
NimVchatOptCbFunc cb,
IntPtr user_data);
/// <summary>
/// 通话中修改发送画面分辨率，发送的分辨率限制只对上限限制，如果数据源小于发送分辨率，不会进行放大
/// </summary>
/// <param name="video_quality"> 分辨率模式</param>
/// <param name="json_extension">无效扩展字段</param>
/// <param name="cb">结果回调，返回的json_extension无效</param>
/// <returns>无返回值</returns>
public static void SetVideoQuality(NIMVChatVideoQuality video_quality, string json_extension, NIMVChatOptHandler cb)
{
var ptr = NimUtility.DelegateConverter.ConvertToIntPtr(cb);
VChatNativeMethods.nim_vchat_set_video_quality(video_quality, json_extension, VChatNormalOptCb, ptr);
}
/// <summary>
/// 通话中修改分辨率
/// </summary>
/// <param name="video_quality"> 分辨率模式</param>
/// <param name="json_extension">无效扩展字段</param>
/// <param name="cb">返回的json_extension无效</param>
/// <param name="user_data">APP的自定义用户数据，SDK只负责传回给回调函数cb，不做任何处理</param>
public static void SetVideoQuality(NIMVChatVideoQuality video_quality, string json_extension, nim_vchat_opt_cb_func cb, IntPtr user_data)
{
var ptr = NimUtility.DelegateConverter.ConvertToIntPtr(cb);
VChatNativeMethods.nim_vchat_set_video_quality(video_quality, json_extension, VChatNormalOptCb, ptr);
}
